/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:48:20,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:48:20,563 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:48:20,566 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:48:20,566 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:48:20,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:48:20,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:48:20,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:48:20,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:48:20,582 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:48:20,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:48:20,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:48:20,583 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:48:20,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:48:20,583 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:48:20,584 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:48:20,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:48:20,584 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:48:20,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:48:20,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:48:20,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:48:20,585 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:48:20,585 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:48:20,586 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:48:20,586 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:48:20,586 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:48:20,586 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:48:20,586 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:48:20,587 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:48:20,587 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:48:20,587 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:48:20,587 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:48:20,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:48:20,588 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:48:20,588 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:48:20,588 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:48:20,588 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:48:20,589 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:48:20,589 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:48:20,589 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:48:20,589 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:48:20,589 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:48:20,590 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:48:20,590 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:48:20,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:48:20,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:48:20,793 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:48:20,794 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:48:20,795 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:48:20,795 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i [2023-12-19 15:48:21,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:48:21,941 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:48:21,943 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i [2023-12-19 15:48:21,949 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2186a48a4/6d6ea95b0b614ba5b0e57b12d74e7f72/FLAG92d2dd53c [2023-12-19 15:48:21,962 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2186a48a4/6d6ea95b0b614ba5b0e57b12d74e7f72 [2023-12-19 15:48:21,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:48:21,964 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:48:21,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:48:21,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:48:21,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:48:21,969 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:48:21" (1/1) ... [2023-12-19 15:48:21,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a39b4fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:21, skipping insertion in model container [2023-12-19 15:48:21,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:48:21" (1/1) ... [2023-12-19 15:48:21,994 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:48:22,123 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i[915,928] [2023-12-19 15:48:22,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:48:22,210 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:48:22,218 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-5.i[915,928] [2023-12-19 15:48:22,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:48:22,254 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:48:22,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22 WrapperNode [2023-12-19 15:48:22,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:48:22,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:48:22,258 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:48:22,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:48:22,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,273 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,315 INFO L138 Inliner]: procedures = 26, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 410 [2023-12-19 15:48:22,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:48:22,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:48:22,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:48:22,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:48:22,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,341 INFO L175 MemorySlicer]: Split 122 memory accesses to 2 slices as follows [2, 120]. 98 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 15]. The 17 writes are split as follows [0, 17]. [2023-12-19 15:48:22,341 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,341 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,353 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:48:22,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:48:22,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:48:22,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:48:22,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (1/1) ... [2023-12-19 15:48:22,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:48:22,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:22,391 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) [2023-12-19 15:48:22,395 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 [2023-12-19 15:48:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:48:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:48:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:48:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:48:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:48:22,414 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:48:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:48:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:48:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:48:22,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:48:22,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:48:22,496 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:48:22,497 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:48:22,924 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:48:22,970 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:48:22,970 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:48:22,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:48:22 BoogieIcfgContainer [2023-12-19 15:48:22,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:48:22,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:48:22,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:48:22,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:48:22,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:48:21" (1/3) ... [2023-12-19 15:48:22,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed27fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:48:22, skipping insertion in model container [2023-12-19 15:48:22,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:48:22" (2/3) ... [2023-12-19 15:48:22,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ed27fc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:48:22, skipping insertion in model container [2023-12-19 15:48:22,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:48:22" (3/3) ... [2023-12-19 15:48:22,976 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-5.i [2023-12-19 15:48:22,986 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:48:22,987 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:48:23,021 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:48:23,026 INFO L357 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, mHoare=true, 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;@7922a946, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:48:23,026 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:48:23,029 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:23,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:48:23,038 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:23,039 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:23,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:23,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:23,043 INFO L85 PathProgramCache]: Analyzing trace with hash -46643479, now seen corresponding path program 1 times [2023-12-19 15:48:23,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:23,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412958485] [2023-12-19 15:48:23,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:23,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:23,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:23,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412958485] [2023-12-19 15:48:23,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:48:23,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395117701] [2023-12-19 15:48:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:23,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:23,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:23,239 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) [2023-12-19 15:48:23,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:48:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:23,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 15:48:23,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:23,462 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2023-12-19 15:48:23,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:23,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395117701] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:23,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:23,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:48:23,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179012746] [2023-12-19 15:48:23,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:23,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:48:23,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:23,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:48:23,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:48:23,499 INFO L87 Difference]: Start difference. First operand has 88 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 66 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:48:23,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:23,549 INFO L93 Difference]: Finished difference Result 173 states and 276 transitions. [2023-12-19 15:48:23,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:48:23,551 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 142 [2023-12-19 15:48:23,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:23,556 INFO L225 Difference]: With dead ends: 173 [2023-12-19 15:48:23,556 INFO L226 Difference]: Without dead ends: 86 [2023-12-19 15:48:23,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:48:23,560 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:23,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 119 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:23,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-19 15:48:23,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2023-12-19 15:48:23,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 64 states have internal predecessors, (84), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:23,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 124 transitions. [2023-12-19 15:48:23,588 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 124 transitions. Word has length 142 [2023-12-19 15:48:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:23,588 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 124 transitions. [2023-12-19 15:48:23,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-19 15:48:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 124 transitions. [2023-12-19 15:48:23,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:48:23,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:23,591 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:23,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:23,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 15:48:23,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:23,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:23,801 INFO L85 PathProgramCache]: Analyzing trace with hash 925550273, now seen corresponding path program 1 times [2023-12-19 15:48:23,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:23,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729939478] [2023-12-19 15:48:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:23,881 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:23,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [31722827] [2023-12-19 15:48:23,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:23,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:23,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:23,886 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) [2023-12-19 15:48:23,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 15:48:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:24,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:48:24,067 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:24,124 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:24,124 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:24,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:24,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729939478] [2023-12-19 15:48:24,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:24,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31722827] [2023-12-19 15:48:24,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31722827] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:24,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:24,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:48:24,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623647086] [2023-12-19 15:48:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:24,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:48:24,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:24,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:48:24,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:48:24,131 INFO L87 Difference]: Start difference. First operand 86 states and 124 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:24,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:24,192 INFO L93 Difference]: Finished difference Result 183 states and 264 transitions. [2023-12-19 15:48:24,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:48:24,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-19 15:48:24,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:24,197 INFO L225 Difference]: With dead ends: 183 [2023-12-19 15:48:24,197 INFO L226 Difference]: Without dead ends: 98 [2023-12-19 15:48:24,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:48:24,198 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 21 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:24,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 350 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:24,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-12-19 15:48:24,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 88. [2023-12-19 15:48:24,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 66 states have (on average 1.303030303030303) internal successors, (86), 66 states have internal predecessors, (86), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2023-12-19 15:48:24,207 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 142 [2023-12-19 15:48:24,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:24,208 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2023-12-19 15:48:24,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2023-12-19 15:48:24,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:48:24,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:24,210 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:24,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-19 15:48:24,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 15:48:24,420 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:24,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:24,420 INFO L85 PathProgramCache]: Analyzing trace with hash 116203647, now seen corresponding path program 1 times [2023-12-19 15:48:24,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:24,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022470313] [2023-12-19 15:48:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:24,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:24,487 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:24,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [147958594] [2023-12-19 15:48:24,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:24,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:24,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:24,489 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) [2023-12-19 15:48:24,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 15:48:24,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:24,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:48:24,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:24,635 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:24,635 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:24,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:24,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022470313] [2023-12-19 15:48:24,636 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:24,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147958594] [2023-12-19 15:48:24,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147958594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:24,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:24,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:48:24,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247855729] [2023-12-19 15:48:24,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:24,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:48:24,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:24,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:48:24,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:48:24,640 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:24,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:24,688 INFO L93 Difference]: Finished difference Result 183 states and 262 transitions. [2023-12-19 15:48:24,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:48:24,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-19 15:48:24,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:24,689 INFO L225 Difference]: With dead ends: 183 [2023-12-19 15:48:24,689 INFO L226 Difference]: Without dead ends: 96 [2023-12-19 15:48:24,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:48:24,690 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 12 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:24,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 348 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:24,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2023-12-19 15:48:24,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2023-12-19 15:48:24,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:24,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 128 transitions. [2023-12-19 15:48:24,697 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 128 transitions. Word has length 142 [2023-12-19 15:48:24,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:24,697 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 128 transitions. [2023-12-19 15:48:24,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:24,697 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 128 transitions. [2023-12-19 15:48:24,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:48:24,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:24,699 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:24,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:24,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:24,905 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:24,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:24,905 INFO L85 PathProgramCache]: Analyzing trace with hash 173461949, now seen corresponding path program 1 times [2023-12-19 15:48:24,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:24,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586943869] [2023-12-19 15:48:24,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:24,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:24,930 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:24,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022786383] [2023-12-19 15:48:24,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:24,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:24,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:24,931 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) [2023-12-19 15:48:24,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 15:48:25,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:25,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:48:25,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:25,066 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:25,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586943869] [2023-12-19 15:48:25,066 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:25,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022786383] [2023-12-19 15:48:25,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022786383] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:25,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:25,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:48:25,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840766771] [2023-12-19 15:48:25,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:25,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:48:25,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:25,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:48:25,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:48:25,068 INFO L87 Difference]: Start difference. First operand 90 states and 128 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:25,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:25,094 INFO L93 Difference]: Finished difference Result 183 states and 260 transitions. [2023-12-19 15:48:25,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:48:25,095 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-19 15:48:25,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:25,096 INFO L225 Difference]: With dead ends: 183 [2023-12-19 15:48:25,096 INFO L226 Difference]: Without dead ends: 94 [2023-12-19 15:48:25,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:48:25,097 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 3 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:25,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 348 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:25,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-19 15:48:25,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-12-19 15:48:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.2857142857142858) internal successors, (90), 70 states have internal predecessors, (90), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 130 transitions. [2023-12-19 15:48:25,103 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 130 transitions. Word has length 142 [2023-12-19 15:48:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:25,103 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 130 transitions. [2023-12-19 15:48:25,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 130 transitions. [2023-12-19 15:48:25,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-12-19 15:48:25,104 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:25,105 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:25,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:25,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:25,311 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:25,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:25,311 INFO L85 PathProgramCache]: Analyzing trace with hash 173521531, now seen corresponding path program 1 times [2023-12-19 15:48:25,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:25,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851400330] [2023-12-19 15:48:25,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:25,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:25,333 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:25,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1489350982] [2023-12-19 15:48:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:25,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:25,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:25,335 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) [2023-12-19 15:48:25,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 15:48:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:25,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:48:25,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:25,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:25,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851400330] [2023-12-19 15:48:25,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489350982] [2023-12-19 15:48:25,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489350982] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:25,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:25,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:48:25,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439072422] [2023-12-19 15:48:25,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:25,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:48:25,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:25,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:48:25,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:48:25,473 INFO L87 Difference]: Start difference. First operand 92 states and 130 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:25,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:25,500 INFO L93 Difference]: Finished difference Result 210 states and 296 transitions. [2023-12-19 15:48:25,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:48:25,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 142 [2023-12-19 15:48:25,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:25,502 INFO L225 Difference]: With dead ends: 210 [2023-12-19 15:48:25,502 INFO L226 Difference]: Without dead ends: 119 [2023-12-19 15:48:25,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:48:25,503 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 46 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:25,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 339 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:25,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-12-19 15:48:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 94. [2023-12-19 15:48:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 72 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2023-12-19 15:48:25,509 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 142 [2023-12-19 15:48:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:25,509 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2023-12-19 15:48:25,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2023-12-19 15:48:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-19 15:48:25,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:25,510 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:25,530 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:25,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:25,717 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:25,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:25,717 INFO L85 PathProgramCache]: Analyzing trace with hash -203633296, now seen corresponding path program 1 times [2023-12-19 15:48:25,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:25,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599722156] [2023-12-19 15:48:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:25,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:25,738 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:25,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056323625] [2023-12-19 15:48:25,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:25,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:25,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:25,740 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) [2023-12-19 15:48:25,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 15:48:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:25,879 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 15:48:25,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:25,895 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:25,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:25,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:25,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599722156] [2023-12-19 15:48:25,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:25,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056323625] [2023-12-19 15:48:25,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056323625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:25,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:25,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:48:25,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451102056] [2023-12-19 15:48:25,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:25,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:48:25,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:25,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:48:25,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:48:25,897 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:25,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:25,939 INFO L93 Difference]: Finished difference Result 205 states and 287 transitions. [2023-12-19 15:48:25,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:48:25,940 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2023-12-19 15:48:25,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:25,941 INFO L225 Difference]: With dead ends: 205 [2023-12-19 15:48:25,941 INFO L226 Difference]: Without dead ends: 112 [2023-12-19 15:48:25,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:48:25,943 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 54 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:25,943 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 457 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:25,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-12-19 15:48:25,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 97. [2023-12-19 15:48:25,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2666666666666666) internal successors, (95), 75 states have internal predecessors, (95), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:25,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 135 transitions. [2023-12-19 15:48:25,962 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 135 transitions. Word has length 144 [2023-12-19 15:48:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:25,962 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 135 transitions. [2023-12-19 15:48:25,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:25,962 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 135 transitions. [2023-12-19 15:48:25,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-19 15:48:25,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:25,963 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:25,980 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:26,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:26,180 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:26,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:26,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1712265504, now seen corresponding path program 1 times [2023-12-19 15:48:26,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:26,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099322082] [2023-12-19 15:48:26,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:26,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:26,211 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:26,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460418765] [2023-12-19 15:48:26,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:26,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:26,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:26,228 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) [2023-12-19 15:48:26,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 15:48:26,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:26,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 410 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 15:48:26,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:26,378 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 19 treesize of output 7 [2023-12-19 15:48:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:26,388 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:26,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:26,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099322082] [2023-12-19 15:48:26,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:26,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460418765] [2023-12-19 15:48:26,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460418765] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:26,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:26,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:48:26,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099677121] [2023-12-19 15:48:26,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:26,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:48:26,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:26,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:48:26,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:26,390 INFO L87 Difference]: Start difference. First operand 97 states and 135 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:26,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:26,414 INFO L93 Difference]: Finished difference Result 193 states and 269 transitions. [2023-12-19 15:48:26,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:48:26,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 144 [2023-12-19 15:48:26,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:26,416 INFO L225 Difference]: With dead ends: 193 [2023-12-19 15:48:26,416 INFO L226 Difference]: Without dead ends: 97 [2023-12-19 15:48:26,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:26,419 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:26,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:26,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-19 15:48:26,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-12-19 15:48:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2533333333333334) internal successors, (94), 75 states have internal predecessors, (94), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 134 transitions. [2023-12-19 15:48:26,431 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 134 transitions. Word has length 144 [2023-12-19 15:48:26,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:26,431 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 134 transitions. [2023-12-19 15:48:26,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 134 transitions. [2023-12-19 15:48:26,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:48:26,432 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:26,433 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:26,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:26,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:26,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:26,640 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:26,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1045464645, now seen corresponding path program 1 times [2023-12-19 15:48:26,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:26,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651394113] [2023-12-19 15:48:26,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:26,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:26,665 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:26,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596074424] [2023-12-19 15:48:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:26,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:26,682 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) [2023-12-19 15:48:26,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 15:48:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:26,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 15:48:26,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:26,820 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 19 treesize of output 7 [2023-12-19 15:48:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:26,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:26,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:26,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651394113] [2023-12-19 15:48:26,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:26,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596074424] [2023-12-19 15:48:26,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596074424] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:26,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:26,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:48:26,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425435116] [2023-12-19 15:48:26,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:26,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:48:26,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:26,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:48:26,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:26,827 INFO L87 Difference]: Start difference. First operand 97 states and 134 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:26,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:26,864 INFO L93 Difference]: Finished difference Result 193 states and 267 transitions. [2023-12-19 15:48:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:48:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-19 15:48:26,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:26,865 INFO L225 Difference]: With dead ends: 193 [2023-12-19 15:48:26,865 INFO L226 Difference]: Without dead ends: 97 [2023-12-19 15:48:26,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:26,866 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 1 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:26,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 230 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:26,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-19 15:48:26,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2023-12-19 15:48:26,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.24) internal successors, (93), 75 states have internal predecessors, (93), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:26,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 133 transitions. [2023-12-19 15:48:26,869 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 133 transitions. Word has length 146 [2023-12-19 15:48:26,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:26,869 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 133 transitions. [2023-12-19 15:48:26,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:26,869 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 133 transitions. [2023-12-19 15:48:26,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:48:26,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:26,870 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:26,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:27,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 15:48:27,071 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:27,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:27,072 INFO L85 PathProgramCache]: Analyzing trace with hash -643479097, now seen corresponding path program 1 times [2023-12-19 15:48:27,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:27,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257561454] [2023-12-19 15:48:27,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:27,096 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:27,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644225851] [2023-12-19 15:48:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:27,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:27,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:27,112 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) [2023-12-19 15:48:27,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 15:48:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:27,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 15:48:27,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:27,275 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 19 treesize of output 7 [2023-12-19 15:48:27,279 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:27,279 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:27,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:27,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257561454] [2023-12-19 15:48:27,279 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:27,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644225851] [2023-12-19 15:48:27,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644225851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:27,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:27,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:48:27,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288481466] [2023-12-19 15:48:27,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:27,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:48:27,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:27,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:48:27,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:27,281 INFO L87 Difference]: Start difference. First operand 97 states and 133 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:27,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:27,293 INFO L93 Difference]: Finished difference Result 221 states and 302 transitions. [2023-12-19 15:48:27,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:48:27,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-19 15:48:27,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:27,295 INFO L225 Difference]: With dead ends: 221 [2023-12-19 15:48:27,295 INFO L226 Difference]: Without dead ends: 125 [2023-12-19 15:48:27,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:27,295 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 32 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:27,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 249 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-19 15:48:27,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 97. [2023-12-19 15:48:27,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 75 states have internal predecessors, (92), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:27,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 132 transitions. [2023-12-19 15:48:27,298 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 132 transitions. Word has length 146 [2023-12-19 15:48:27,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:27,299 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 132 transitions. [2023-12-19 15:48:27,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:27,299 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2023-12-19 15:48:27,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-19 15:48:27,300 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:27,300 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:27,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:27,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:27,506 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:27,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:27,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1923342775, now seen corresponding path program 1 times [2023-12-19 15:48:27,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:27,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530785519] [2023-12-19 15:48:27,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:27,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:27,524 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:27,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1780795385] [2023-12-19 15:48:27,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:27,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:27,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:27,526 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) [2023-12-19 15:48:27,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 15:48:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:27,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-19 15:48:27,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:27,873 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 [2023-12-19 15:48:27,902 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:27,902 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 31 [2023-12-19 15:48:28,026 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:48:28,026 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:48:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:28,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530785519] [2023-12-19 15:48:28,153 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780795385] [2023-12-19 15:48:28,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780795385] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:48:28,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:48:28,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 15 [2023-12-19 15:48:28,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857610716] [2023-12-19 15:48:28,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:28,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:48:28,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:28,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:48:28,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:48:28,154 INFO L87 Difference]: Start difference. First operand 97 states and 132 transitions. Second operand has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:28,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:28,469 INFO L93 Difference]: Finished difference Result 277 states and 380 transitions. [2023-12-19 15:48:28,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:48:28,470 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 146 [2023-12-19 15:48:28,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:28,471 INFO L225 Difference]: With dead ends: 277 [2023-12-19 15:48:28,471 INFO L226 Difference]: Without dead ends: 181 [2023-12-19 15:48:28,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2023-12-19 15:48:28,472 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 203 mSDsluCounter, 762 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:28,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 920 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:48:28,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-19 15:48:28,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 95. [2023-12-19 15:48:28,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 73 states have (on average 1.2191780821917808) internal successors, (89), 73 states have internal predecessors, (89), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 129 transitions. [2023-12-19 15:48:28,476 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 129 transitions. Word has length 146 [2023-12-19 15:48:28,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:28,477 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 129 transitions. [2023-12-19 15:48:28,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.125) internal successors, (49), 8 states have internal predecessors, (49), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:28,477 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 129 transitions. [2023-12-19 15:48:28,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-19 15:48:28,478 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:28,478 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:28,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-12-19 15:48:28,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 15:48:28,685 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:28,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:28,685 INFO L85 PathProgramCache]: Analyzing trace with hash 965603017, now seen corresponding path program 1 times [2023-12-19 15:48:28,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:28,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512497702] [2023-12-19 15:48:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:28,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:28,704 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658681549] [2023-12-19 15:48:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:28,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:28,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:28,706 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) [2023-12-19 15:48:28,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 15:48:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:28,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 15:48:28,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:28,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:28,856 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 13 [2023-12-19 15:48:28,862 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:28,863 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:28,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:28,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512497702] [2023-12-19 15:48:28,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:28,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658681549] [2023-12-19 15:48:28,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658681549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:28,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:28,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:48:28,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604104645] [2023-12-19 15:48:28,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:28,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:48:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:28,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:48:28,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:28,864 INFO L87 Difference]: Start difference. First operand 95 states and 129 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:28,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:28,876 INFO L93 Difference]: Finished difference Result 189 states and 257 transitions. [2023-12-19 15:48:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:48:28,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 148 [2023-12-19 15:48:28,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:28,877 INFO L225 Difference]: With dead ends: 189 [2023-12-19 15:48:28,877 INFO L226 Difference]: Without dead ends: 95 [2023-12-19 15:48:28,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:48:28,877 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 32 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 195 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 [2023-12-19 15:48:28,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 195 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:28,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-19 15:48:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-19 15:48:28,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 73 states have internal predecessors, (88), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-19 15:48:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 128 transitions. [2023-12-19 15:48:28,881 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 128 transitions. Word has length 148 [2023-12-19 15:48:28,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:28,881 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 128 transitions. [2023-12-19 15:48:28,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:28,881 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 128 transitions. [2023-12-19 15:48:28,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:48:28,882 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:28,882 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:28,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:29,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 15:48:29,089 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:29,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:29,089 INFO L85 PathProgramCache]: Analyzing trace with hash -187140496, now seen corresponding path program 1 times [2023-12-19 15:48:29,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:29,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665254955] [2023-12-19 15:48:29,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:29,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:29,105 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:29,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006635488] [2023-12-19 15:48:29,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:29,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:29,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:29,107 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) [2023-12-19 15:48:29,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 15:48:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:29,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 15:48:29,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:29,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 59 treesize of output 45 [2023-12-19 15:48:29,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 67 [2023-12-19 15:48:29,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 0 case distinctions, treesize of input 38 treesize of output 20 [2023-12-19 15:48:29,351 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:29,351 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 101 treesize of output 66 [2023-12-19 15:48:29,451 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:29,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 84 treesize of output 38 [2023-12-19 15:48:29,462 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:29,462 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:29,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665254955] [2023-12-19 15:48:29,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:29,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006635488] [2023-12-19 15:48:29,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006635488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:29,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:29,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:48:29,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132707134] [2023-12-19 15:48:29,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:29,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:48:29,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:29,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:48:29,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:48:29,463 INFO L87 Difference]: Start difference. First operand 95 states and 128 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:29,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:29,730 INFO L93 Difference]: Finished difference Result 267 states and 352 transitions. [2023-12-19 15:48:29,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:48:29,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-19 15:48:29,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:29,731 INFO L225 Difference]: With dead ends: 267 [2023-12-19 15:48:29,731 INFO L226 Difference]: Without dead ends: 173 [2023-12-19 15:48:29,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:48:29,732 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 91 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:29,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 471 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:48:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-19 15:48:29,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 142. [2023-12-19 15:48:29,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 115 states have (on average 1.2) internal successors, (138), 116 states have internal predecessors, (138), 24 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (24), 23 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-19 15:48:29,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 186 transitions. [2023-12-19 15:48:29,738 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 186 transitions. Word has length 150 [2023-12-19 15:48:29,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:29,738 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 186 transitions. [2023-12-19 15:48:29,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:29,738 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 186 transitions. [2023-12-19 15:48:29,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:48:29,739 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:29,739 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:29,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:29,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 15:48:29,945 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:29,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:29,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2057555662, now seen corresponding path program 1 times [2023-12-19 15:48:29,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:29,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257929371] [2023-12-19 15:48:29,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:29,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:29,975 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:29,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1635219231] [2023-12-19 15:48:29,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:29,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:29,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:29,979 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:30,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 15:48:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:30,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-19 15:48:30,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:30,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 48 treesize of output 35 [2023-12-19 15:48:30,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2023-12-19 15:48:30,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2023-12-19 15:48:30,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:30,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 81 treesize of output 67 [2023-12-19 15:48:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:30,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:30,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:30,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257929371] [2023-12-19 15:48:30,556 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:30,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635219231] [2023-12-19 15:48:30,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635219231] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:30,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:30,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-19 15:48:30,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146207727] [2023-12-19 15:48:30,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:30,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-19 15:48:30,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:30,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-19 15:48:30,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:48:30,557 INFO L87 Difference]: Start difference. First operand 142 states and 186 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:31,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:31,048 INFO L93 Difference]: Finished difference Result 191 states and 247 transitions. [2023-12-19 15:48:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 15:48:31,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-19 15:48:31,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:31,050 INFO L225 Difference]: With dead ends: 191 [2023-12-19 15:48:31,050 INFO L226 Difference]: Without dead ends: 189 [2023-12-19 15:48:31,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:48:31,051 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 180 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:31,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 304 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:48:31,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-19 15:48:31,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 170. [2023-12-19 15:48:31,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 133 states have (on average 1.1729323308270676) internal successors, (156), 135 states have internal predecessors, (156), 32 states have call successors, (32), 4 states have call predecessors, (32), 4 states have return successors, (32), 30 states have call predecessors, (32), 32 states have call successors, (32) [2023-12-19 15:48:31,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 220 transitions. [2023-12-19 15:48:31,062 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 220 transitions. Word has length 150 [2023-12-19 15:48:31,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:31,062 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 220 transitions. [2023-12-19 15:48:31,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 9 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:31,063 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 220 transitions. [2023-12-19 15:48:31,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:48:31,064 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:31,064 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:31,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:31,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 15:48:31,273 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:31,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:31,273 INFO L85 PathProgramCache]: Analyzing trace with hash -2057496080, now seen corresponding path program 1 times [2023-12-19 15:48:31,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:31,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872774234] [2023-12-19 15:48:31,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:31,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:31,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:31,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1334532610] [2023-12-19 15:48:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:31,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:31,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:31,291 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:31,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 15:48:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:31,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:48:31,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:31,518 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:31,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2023-12-19 15:48:31,525 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 48 treesize of output 35 [2023-12-19 15:48:31,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2023-12-19 15:48:31,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 12 treesize of output 1 [2023-12-19 15:48:31,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:31,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 79 treesize of output 47 [2023-12-19 15:48:31,706 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:31,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:31,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:31,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872774234] [2023-12-19 15:48:31,706 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:31,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334532610] [2023-12-19 15:48:31,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334532610] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:31,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:31,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:48:31,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679184487] [2023-12-19 15:48:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:31,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:48:31,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:48:31,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:48:31,707 INFO L87 Difference]: Start difference. First operand 170 states and 220 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:32,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:32,131 INFO L93 Difference]: Finished difference Result 360 states and 469 transitions. [2023-12-19 15:48:32,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:48:32,131 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-19 15:48:32,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:32,132 INFO L225 Difference]: With dead ends: 360 [2023-12-19 15:48:32,132 INFO L226 Difference]: Without dead ends: 211 [2023-12-19 15:48:32,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:48:32,133 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 159 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:32,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 339 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 15:48:32,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-19 15:48:32,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2023-12-19 15:48:32,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 148 states have (on average 1.1418918918918919) internal successors, (169), 150 states have internal predecessors, (169), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-19 15:48:32,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 257 transitions. [2023-12-19 15:48:32,143 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 257 transitions. Word has length 150 [2023-12-19 15:48:32,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:32,144 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 257 transitions. [2023-12-19 15:48:32,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:32,144 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 257 transitions. [2023-12-19 15:48:32,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:48:32,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:32,145 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:32,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:32,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:32,351 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:32,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:32,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2000237778, now seen corresponding path program 1 times [2023-12-19 15:48:32,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:32,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431815671] [2023-12-19 15:48:32,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:32,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:32,377 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:32,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272732936] [2023-12-19 15:48:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:32,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:32,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:32,378 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:32,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 15:48:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:32,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 15:48:32,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:32,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 37 treesize of output 32 [2023-12-19 15:48:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:32,599 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:32,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431815671] [2023-12-19 15:48:32,599 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:32,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272732936] [2023-12-19 15:48:32,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272732936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:32,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:32,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:48:32,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164682465] [2023-12-19 15:48:32,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:32,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:48:32,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:32,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:48:32,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:48:32,601 INFO L87 Difference]: Start difference. First operand 198 states and 257 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:32,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:32,797 INFO L93 Difference]: Finished difference Result 360 states and 465 transitions. [2023-12-19 15:48:32,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:48:32,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-19 15:48:32,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:32,798 INFO L225 Difference]: With dead ends: 360 [2023-12-19 15:48:32,798 INFO L226 Difference]: Without dead ends: 211 [2023-12-19 15:48:32,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:48:32,799 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 100 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:32,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 473 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:48:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-12-19 15:48:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 198. [2023-12-19 15:48:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 148 states have (on average 1.1283783783783783) internal successors, (167), 150 states have internal predecessors, (167), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-19 15:48:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 255 transitions. [2023-12-19 15:48:32,810 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 255 transitions. Word has length 150 [2023-12-19 15:48:32,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:32,810 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 255 transitions. [2023-12-19 15:48:32,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:32,810 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 255 transitions. [2023-12-19 15:48:32,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-19 15:48:32,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:32,811 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:32,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-12-19 15:48:33,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 15:48:33,018 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:33,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:33,019 INFO L85 PathProgramCache]: Analyzing trace with hash 1485382892, now seen corresponding path program 1 times [2023-12-19 15:48:33,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:33,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485808069] [2023-12-19 15:48:33,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:33,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:33,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:33,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1948441110] [2023-12-19 15:48:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:33,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:33,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:33,036 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:33,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 15:48:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:33,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 15:48:33,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:33,230 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:33,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:33,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:33,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485808069] [2023-12-19 15:48:33,231 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:33,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948441110] [2023-12-19 15:48:33,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948441110] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:33,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:33,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:48:33,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918933180] [2023-12-19 15:48:33,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:33,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:48:33,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:33,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:48:33,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:48:33,232 INFO L87 Difference]: Start difference. First operand 198 states and 255 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:33,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:33,267 INFO L93 Difference]: Finished difference Result 363 states and 461 transitions. [2023-12-19 15:48:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:48:33,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2023-12-19 15:48:33,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:33,268 INFO L225 Difference]: With dead ends: 363 [2023-12-19 15:48:33,268 INFO L226 Difference]: Without dead ends: 214 [2023-12-19 15:48:33,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:48:33,269 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 18 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:33,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 435 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:48:33,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-12-19 15:48:33,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 204. [2023-12-19 15:48:33,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.1233766233766234) internal successors, (173), 156 states have internal predecessors, (173), 44 states have call successors, (44), 5 states have call predecessors, (44), 5 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-19 15:48:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 261 transitions. [2023-12-19 15:48:33,282 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 261 transitions. Word has length 150 [2023-12-19 15:48:33,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:33,283 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 261 transitions. [2023-12-19 15:48:33,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 261 transitions. [2023-12-19 15:48:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-19 15:48:33,284 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:33,284 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:33,290 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-12-19 15:48:33,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-19 15:48:33,490 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:33,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash -173663251, now seen corresponding path program 1 times [2023-12-19 15:48:33,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:33,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495974489] [2023-12-19 15:48:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:33,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:33,519 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:33,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049353086] [2023-12-19 15:48:33,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:33,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:33,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:33,522 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:33,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 15:48:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:33,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-19 15:48:33,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:33,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 19 [2023-12-19 15:48:33,732 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 63 treesize of output 47 [2023-12-19 15:48:33,737 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:33,737 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 79 [2023-12-19 15:48:33,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 35 [2023-12-19 15:48:33,792 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:33,792 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 62 [2023-12-19 15:48:33,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:33,911 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 55 [2023-12-19 15:48:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:48:33,939 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:48:34,060 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:34,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:34,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495974489] [2023-12-19 15:48:34,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:34,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049353086] [2023-12-19 15:48:34,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049353086] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:48:34,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:48:34,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 14 [2023-12-19 15:48:34,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243966264] [2023-12-19 15:48:34,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:34,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:48:34,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:34,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:48:34,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:48:34,062 INFO L87 Difference]: Start difference. First operand 204 states and 261 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:34,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:34,383 INFO L93 Difference]: Finished difference Result 416 states and 521 transitions. [2023-12-19 15:48:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 15:48:34,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 151 [2023-12-19 15:48:34,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:34,384 INFO L225 Difference]: With dead ends: 416 [2023-12-19 15:48:34,384 INFO L226 Difference]: Without dead ends: 261 [2023-12-19 15:48:34,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2023-12-19 15:48:34,385 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 148 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:34,386 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 738 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:48:34,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2023-12-19 15:48:34,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 217. [2023-12-19 15:48:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 162 states have (on average 1.117283950617284) internal successors, (181), 164 states have internal predecessors, (181), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 46 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-19 15:48:34,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 277 transitions. [2023-12-19 15:48:34,398 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 277 transitions. Word has length 151 [2023-12-19 15:48:34,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:34,399 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 277 transitions. [2023-12-19 15:48:34,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:34,399 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 277 transitions. [2023-12-19 15:48:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-19 15:48:34,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:34,400 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:34,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:34,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-19 15:48:34,607 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:34,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:34,607 INFO L85 PathProgramCache]: Analyzing trace with hash 355748743, now seen corresponding path program 1 times [2023-12-19 15:48:34,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:34,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86547549] [2023-12-19 15:48:34,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:34,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:34,625 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:34,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [667020422] [2023-12-19 15:48:34,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:34,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:34,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:34,626 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:34,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-12-19 15:48:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:35,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-19 15:48:35,010 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:35,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:35,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-12-19 15:48:35,019 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 19 treesize of output 1 [2023-12-19 15:48:35,022 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 19 treesize of output 1 [2023-12-19 15:48:35,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 91 treesize of output 71 [2023-12-19 15:48:35,080 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:35,081 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 123 [2023-12-19 15:48:35,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 63 [2023-12-19 15:48:35,205 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:35,205 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 10 case distinctions, treesize of input 165 treesize of output 112 [2023-12-19 15:48:35,493 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:35,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 175 treesize of output 75 [2023-12-19 15:48:35,517 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:35,517 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:35,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:35,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86547549] [2023-12-19 15:48:35,518 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:35,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667020422] [2023-12-19 15:48:35,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667020422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:35,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:35,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:48:35,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339356439] [2023-12-19 15:48:35,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:35,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:48:35,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:35,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:48:35,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:48:35,519 INFO L87 Difference]: Start difference. First operand 217 states and 277 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:37,779 INFO L93 Difference]: Finished difference Result 512 states and 632 transitions. [2023-12-19 15:48:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:48:37,780 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 152 [2023-12-19 15:48:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:37,781 INFO L225 Difference]: With dead ends: 512 [2023-12-19 15:48:37,781 INFO L226 Difference]: Without dead ends: 344 [2023-12-19 15:48:37,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:48:37,782 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 119 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:37,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 403 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-19 15:48:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2023-12-19 15:48:37,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 207. [2023-12-19 15:48:37,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 174 states have (on average 1.132183908045977) internal successors, (197), 175 states have internal predecessors, (197), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:48:37,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 253 transitions. [2023-12-19 15:48:37,794 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 253 transitions. Word has length 152 [2023-12-19 15:48:37,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:37,794 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 253 transitions. [2023-12-19 15:48:37,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:37,794 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 253 transitions. [2023-12-19 15:48:37,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-19 15:48:37,795 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:37,795 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:37,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:38,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-12-19 15:48:38,002 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:38,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:38,003 INFO L85 PathProgramCache]: Analyzing trace with hash -418038062, now seen corresponding path program 1 times [2023-12-19 15:48:38,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:38,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742882514] [2023-12-19 15:48:38,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:38,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:38,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:38,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059050633] [2023-12-19 15:48:38,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:38,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:38,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:38,027 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:38,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-12-19 15:48:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:38,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-19 15:48:38,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:38,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:38,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2023-12-19 15:48:38,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 19 treesize of output 19 [2023-12-19 15:48:38,271 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 63 treesize of output 47 [2023-12-19 15:48:38,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:38,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 79 [2023-12-19 15:48:38,294 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:38,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 37 [2023-12-19 15:48:38,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:38,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 109 treesize of output 62 [2023-12-19 15:48:38,469 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:38,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 131 treesize of output 55 [2023-12-19 15:48:38,503 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 12 proven. 45 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2023-12-19 15:48:38,504 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:48:38,628 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:38,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:38,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742882514] [2023-12-19 15:48:38,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:38,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059050633] [2023-12-19 15:48:38,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059050633] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:48:38,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:48:38,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 16 [2023-12-19 15:48:38,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747073681] [2023-12-19 15:48:38,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:38,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 15:48:38,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:38,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 15:48:38,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:48:38,630 INFO L87 Difference]: Start difference. First operand 207 states and 253 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:39,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:39,032 INFO L93 Difference]: Finished difference Result 460 states and 557 transitions. [2023-12-19 15:48:39,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-19 15:48:39,040 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 153 [2023-12-19 15:48:39,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:39,041 INFO L225 Difference]: With dead ends: 460 [2023-12-19 15:48:39,041 INFO L226 Difference]: Without dead ends: 254 [2023-12-19 15:48:39,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2023-12-19 15:48:39,042 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 143 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:39,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 865 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:48:39,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-19 15:48:39,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 197. [2023-12-19 15:48:39,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 164 states have (on average 1.1280487804878048) internal successors, (185), 165 states have internal predecessors, (185), 28 states have call successors, (28), 4 states have call predecessors, (28), 4 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2023-12-19 15:48:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 241 transitions. [2023-12-19 15:48:39,057 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 241 transitions. Word has length 153 [2023-12-19 15:48:39,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:39,057 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 241 transitions. [2023-12-19 15:48:39,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 241 transitions. [2023-12-19 15:48:39,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 15:48:39,058 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:39,058 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:39,080 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-12-19 15:48:39,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:39,266 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:39,266 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:39,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1341614228, now seen corresponding path program 1 times [2023-12-19 15:48:39,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:39,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357153429] [2023-12-19 15:48:39,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:39,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:39,282 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:39,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1045232974] [2023-12-19 15:48:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:39,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:39,283 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:39,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-12-19 15:48:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:39,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 61 conjunts are in the unsatisfiable core [2023-12-19 15:48:39,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:39,764 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 19 treesize of output 1 [2023-12-19 15:48:39,767 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 19 treesize of output 1 [2023-12-19 15:48:39,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:39,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2023-12-19 15:48:39,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 85 treesize of output 65 [2023-12-19 15:48:39,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:39,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 117 [2023-12-19 15:48:39,859 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:39,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 56 [2023-12-19 15:48:39,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:39,901 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 10 case distinctions, treesize of input 153 treesize of output 100 [2023-12-19 15:48:40,328 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:40,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 217 treesize of output 93 [2023-12-19 15:48:40,367 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:40,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:40,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:40,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357153429] [2023-12-19 15:48:40,367 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:40,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045232974] [2023-12-19 15:48:40,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045232974] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:40,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:40,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-19 15:48:40,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615853792] [2023-12-19 15:48:40,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:40,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 15:48:40,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:40,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 15:48:40,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2023-12-19 15:48:40,369 INFO L87 Difference]: Start difference. First operand 197 states and 241 transitions. Second operand has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:41,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:41,559 INFO L93 Difference]: Finished difference Result 606 states and 727 transitions. [2023-12-19 15:48:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-19 15:48:41,560 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-19 15:48:41,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:41,561 INFO L225 Difference]: With dead ends: 606 [2023-12-19 15:48:41,561 INFO L226 Difference]: Without dead ends: 410 [2023-12-19 15:48:41,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2023-12-19 15:48:41,562 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 287 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:41,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 847 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-19 15:48:41,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-12-19 15:48:41,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 335. [2023-12-19 15:48:41,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 277 states have (on average 1.1155234657039712) internal successors, (309), 280 states have internal predecessors, (309), 49 states have call successors, (49), 8 states have call predecessors, (49), 8 states have return successors, (49), 46 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-19 15:48:41,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 407 transitions. [2023-12-19 15:48:41,586 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 407 transitions. Word has length 154 [2023-12-19 15:48:41,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:41,586 INFO L495 AbstractCegarLoop]: Abstraction has 335 states and 407 transitions. [2023-12-19 15:48:41,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5625) internal successors, (57), 16 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:41,586 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 407 transitions. [2023-12-19 15:48:41,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 15:48:41,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:41,587 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:41,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:41,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:41,796 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:41,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:41,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1083448790, now seen corresponding path program 1 times [2023-12-19 15:48:41,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049607165] [2023-12-19 15:48:41,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:41,820 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:41,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157408234] [2023-12-19 15:48:41,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:41,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:41,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:41,821 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:41,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-12-19 15:48:42,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:42,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-19 15:48:42,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:42,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:42,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 28 treesize of output 10 [2023-12-19 15:48:42,071 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 19 treesize of output 1 [2023-12-19 15:48:42,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:42,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2023-12-19 15:48:42,094 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 69 treesize of output 53 [2023-12-19 15:48:42,098 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:42,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 85 [2023-12-19 15:48:42,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 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 34 treesize of output 16 [2023-12-19 15:48:42,162 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:42,162 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 83 [2023-12-19 15:48:42,323 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:42,323 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 113 treesize of output 49 [2023-12-19 15:48:42,332 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:42,332 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:42,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:42,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049607165] [2023-12-19 15:48:42,332 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:42,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157408234] [2023-12-19 15:48:42,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157408234] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:42,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:42,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:48:42,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997963251] [2023-12-19 15:48:42,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:42,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:48:42,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:42,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:48:42,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:48:42,333 INFO L87 Difference]: Start difference. First operand 335 states and 407 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:42,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:42,694 INFO L93 Difference]: Finished difference Result 704 states and 848 transitions. [2023-12-19 15:48:42,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:48:42,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-19 15:48:42,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:42,722 INFO L225 Difference]: With dead ends: 704 [2023-12-19 15:48:42,722 INFO L226 Difference]: Without dead ends: 370 [2023-12-19 15:48:42,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:48:42,725 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 87 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:42,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 546 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:48:42,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-12-19 15:48:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 325. [2023-12-19 15:48:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 263 states have (on average 1.0988593155893536) internal successors, (289), 266 states have internal predecessors, (289), 52 states have call successors, (52), 9 states have call predecessors, (52), 9 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-19 15:48:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 393 transitions. [2023-12-19 15:48:42,757 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 393 transitions. Word has length 154 [2023-12-19 15:48:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:42,758 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 393 transitions. [2023-12-19 15:48:42,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 393 transitions. [2023-12-19 15:48:42,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 15:48:42,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:42,762 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:42,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:42,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:42,969 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:42,970 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:42,970 INFO L85 PathProgramCache]: Analyzing trace with hash 44589166, now seen corresponding path program 1 times [2023-12-19 15:48:42,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:42,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133621808] [2023-12-19 15:48:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:42,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:42,990 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:42,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625780401] [2023-12-19 15:48:42,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:42,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:42,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:42,991 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:43,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-12-19 15:48:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:43,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:48:43,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:43,224 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:43,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2023-12-19 15:48:43,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 67 treesize of output 51 [2023-12-19 15:48:43,235 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:43,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 83 [2023-12-19 15:48:43,266 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 35 [2023-12-19 15:48:43,297 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:43,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 117 treesize of output 79 [2023-12-19 15:48:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:43,559 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:48:43,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:43,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133621808] [2023-12-19 15:48:43,559 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:43,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625780401] [2023-12-19 15:48:43,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625780401] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:48:43,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:48:43,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 15:48:43,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263013645] [2023-12-19 15:48:43,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:43,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 15:48:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:43,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 15:48:43,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:48:43,560 INFO L87 Difference]: Start difference. First operand 325 states and 393 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:44,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:44,181 INFO L93 Difference]: Finished difference Result 789 states and 958 transitions. [2023-12-19 15:48:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:48:44,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-19 15:48:44,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:44,206 INFO L225 Difference]: With dead ends: 789 [2023-12-19 15:48:44,206 INFO L226 Difference]: Without dead ends: 465 [2023-12-19 15:48:44,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:48:44,208 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 122 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:44,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 403 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 15:48:44,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2023-12-19 15:48:44,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 409. [2023-12-19 15:48:44,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 319 states have (on average 1.0752351097178683) internal successors, (343), 324 states have internal predecessors, (343), 76 states have call successors, (76), 13 states have call predecessors, (76), 13 states have return successors, (76), 71 states have call predecessors, (76), 76 states have call successors, (76) [2023-12-19 15:48:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 495 transitions. [2023-12-19 15:48:44,249 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 495 transitions. Word has length 154 [2023-12-19 15:48:44,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:44,250 INFO L495 AbstractCegarLoop]: Abstraction has 409 states and 495 transitions. [2023-12-19 15:48:44,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:44,250 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 495 transitions. [2023-12-19 15:48:44,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-19 15:48:44,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:48:44,251 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:48:44,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:44,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:44,457 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:48:44,458 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:48:44,458 INFO L85 PathProgramCache]: Analyzing trace with hash 302754604, now seen corresponding path program 1 times [2023-12-19 15:48:44,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:48:44,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344385897] [2023-12-19 15:48:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:44,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:48:44,473 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:48:44,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [830607394] [2023-12-19 15:48:44,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:48:44,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:44,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:48:44,488 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:48:44,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-12-19 15:48:44,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:48:44,970 INFO L262 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 100 conjunts are in the unsatisfiable core [2023-12-19 15:48:44,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:48:44,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:44,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 56 treesize of output 40 [2023-12-19 15:48:45,055 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 37 [2023-12-19 15:48:45,106 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,106 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 28 [2023-12-19 15:48:45,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2023-12-19 15:48:45,213 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2023-12-19 15:48:45,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2023-12-19 15:48:45,319 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 25 [2023-12-19 15:48:45,412 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2023-12-19 15:48:45,507 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 0 case distinctions, treesize of input 50 treesize of output 40 [2023-12-19 15:48:45,829 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,829 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 87 treesize of output 76 [2023-12-19 15:48:45,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 129 treesize of output 101 [2023-12-19 15:48:45,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:45,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 101 treesize of output 151 [2023-12-19 15:48:45,932 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 76 [2023-12-19 15:48:46,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:46,074 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 15 case distinctions, treesize of input 241 treesize of output 140 [2023-12-19 15:48:46,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:48:46,865 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 287 treesize of output 127 [2023-12-19 15:48:46,973 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 237 proven. 262 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2023-12-19 15:48:46,973 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:48:47,398 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2023-12-19 15:48:47,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:48:47,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344385897] [2023-12-19 15:48:47,398 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:48:47,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830607394] [2023-12-19 15:48:47,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830607394] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:48:47,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:48:47,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [29] total 39 [2023-12-19 15:48:47,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623010495] [2023-12-19 15:48:47,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:48:47,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 15:48:47,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:48:47,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 15:48:47,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=175, Invalid=1307, Unknown=0, NotChecked=0, Total=1482 [2023-12-19 15:48:47,400 INFO L87 Difference]: Start difference. First operand 409 states and 495 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:48:48,430 INFO L93 Difference]: Finished difference Result 868 states and 1049 transitions. [2023-12-19 15:48:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 15:48:48,431 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 154 [2023-12-19 15:48:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:48:48,431 INFO L225 Difference]: With dead ends: 868 [2023-12-19 15:48:48,431 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 15:48:48,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=275, Invalid=2077, Unknown=0, NotChecked=0, Total=2352 [2023-12-19 15:48:48,433 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 97 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1094 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-19 15:48:48,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1094 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-19 15:48:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 15:48:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 15:48:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 15:48:48,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 15:48:48,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2023-12-19 15:48:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:48:48,434 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 15:48:48,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-19 15:48:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 15:48:48,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 15:48:48,437 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:48:48,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-12-19 15:48:48,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:48:48,647 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 15:49:00,618 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-12-19 15:49:00,618 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-12-19 15:49:00,618 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-12-19 15:49:00,618 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse3 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse2 (let ((.cse4 (select .cse1 |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse4 1) 0) (<= 0 (+ .cse4 32768))) (and (<= .cse4 32767) (<= 0 .cse4)))))) (or (and (= .cse0 (select .cse1 (+ 23 |~#WrapperStruct00~0.offset|))) (= (+ (select .cse1 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0) .cse2 (= .cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)))) (and (<= (+ (* (mod 2 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse3) .cse2)))) [2023-12-19 15:49:00,618 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L895 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L111-1(line 111) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L895 garLoopResultBuilder]: At program point L103(line 103) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L103-1(line 103) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L895 garLoopResultBuilder]: At program point L95(line 95) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse3 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse2 (let ((.cse4 (select .cse1 |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse4 1) 0) (<= 0 (+ .cse4 32768))) (and (<= .cse4 32767) (<= 0 .cse4)))))) (or (and (= .cse0 (select .cse1 (+ 23 |~#WrapperStruct00~0.offset|))) (= (+ (select .cse1 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0) .cse2 (= .cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)))) (and (<= (+ (* (mod 2 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse3) .cse2)))) [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L95-1(line 95) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L895 garLoopResultBuilder]: At program point L128-2(lines 128 134) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse12 (select .cse0 |~#WrapperStruct00~0.offset|))) (let ((.cse2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse9 (<= .cse12 32767)) (.cse10 (<= 0 .cse12)) (.cse7 (<= (+ .cse12 1) 0)) (.cse8 (<= 0 (+ .cse12 32768)))) (let ((.cse3 (let ((.cse11 (<= (mod (select .cse0 (+ 7 |~#WrapperStruct00~0.offset|)) 256) 0))) (or (and .cse11 .cse9 .cse10) (and .cse7 .cse8 .cse11)))) (.cse4 (= .cse1 (select .cse0 (+ 23 |~#WrapperStruct00~0.offset|)))) (.cse5 (= (+ (select .cse0 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0)) (.cse6 (= .cse2 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))))) (or (and (<= (+ (* (mod 2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse2) .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse4 .cse5 (= .cse1 .cse2) (or (and .cse7 .cse8) (and .cse9 .cse10)) .cse6)))))) [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L128-3(lines 128 134) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L895 garLoopResultBuilder]: At program point L112(line 112) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L112-1(line 112) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 81) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L79-2(lines 79 81) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 15:49:00,619 INFO L895 garLoopResultBuilder]: At program point L104(line 104) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,619 INFO L899 garLoopResultBuilder]: For program point L104-1(line 104) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse12 (select .cse0 |~#WrapperStruct00~0.offset|))) (let ((.cse2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse9 (<= .cse12 32767)) (.cse10 (<= 0 .cse12)) (.cse7 (<= (+ .cse12 1) 0)) (.cse8 (<= 0 (+ .cse12 32768)))) (let ((.cse3 (let ((.cse11 (<= (mod (select .cse0 (+ 7 |~#WrapperStruct00~0.offset|)) 256) 0))) (or (and .cse11 .cse9 .cse10) (and .cse7 .cse8 .cse11)))) (.cse4 (= .cse1 (select .cse0 (+ 23 |~#WrapperStruct00~0.offset|)))) (.cse5 (= (+ (select .cse0 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0)) (.cse6 (= .cse2 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))))) (or (and (<= (+ (* (mod 2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse2) .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse4 .cse5 (= .cse1 .cse2) (or (and .cse7 .cse8) (and .cse9 .cse10)) .cse6)))))) [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L80-2(line 80) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L895 garLoopResultBuilder]: At program point L105(line 105) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L105-1(line 105) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L895 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse3 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse2 (let ((.cse4 (select .cse1 |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse4 1) 0) (<= 0 (+ .cse4 32768))) (and (<= .cse4 32767) (<= 0 .cse4)))))) (or (and (= .cse0 (select .cse1 (+ 23 |~#WrapperStruct00~0.offset|))) (= (+ (select .cse1 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0) .cse2 (= .cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)))) (and (<= (+ (* (mod 2 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse3) .cse2)))) [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 74) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 64 74) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L895 garLoopResultBuilder]: At program point L89(line 89) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse12 (select .cse0 |~#WrapperStruct00~0.offset|))) (let ((.cse2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse9 (<= .cse12 32767)) (.cse10 (<= 0 .cse12)) (.cse7 (<= (+ .cse12 1) 0)) (.cse8 (<= 0 (+ .cse12 32768)))) (let ((.cse3 (let ((.cse11 (<= (mod (select .cse0 (+ 7 |~#WrapperStruct00~0.offset|)) 256) 0))) (or (and .cse11 .cse9 .cse10) (and .cse7 .cse8 .cse11)))) (.cse4 (= .cse1 (select .cse0 (+ 23 |~#WrapperStruct00~0.offset|)))) (.cse5 (= (+ (select .cse0 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0)) (.cse6 (= .cse2 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))))) (or (and (<= (+ (* (mod 2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse2) .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse4 .cse5 (= .cse1 .cse2) (or (and .cse7 .cse8) (and .cse9 .cse10)) .cse6)))))) [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L122-1(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L89-1(line 89) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L122-3(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L122-5(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L122-6(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,620 INFO L899 garLoopResultBuilder]: For program point L122-7(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-8(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L114-1(line 114) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-9(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-11(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-13(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-15(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-17(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-18(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-19(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-20(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-22(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L895 garLoopResultBuilder]: At program point L98(line 98) the Hoare annotation is: (let ((.cse1 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse3 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse2 (let ((.cse4 (select .cse1 |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse4 1) 0) (<= 0 (+ .cse4 32768))) (and (<= .cse4 32767) (<= 0 .cse4)))))) (or (and (= .cse0 (select .cse1 (+ 23 |~#WrapperStruct00~0.offset|))) (= (+ (select .cse1 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0) .cse2 (= .cse3 (select .cse1 (+ |~#WrapperStruct00~0.offset| 25)))) (and (<= (+ (* (mod 2 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse0 (mod (select .cse1 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse3) .cse2)))) [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-24(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L98-1(line 98) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 73) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-26(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-27(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-29(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-30(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,621 INFO L899 garLoopResultBuilder]: For program point L122-32(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L122-33(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L122-35(line 122) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L895 garLoopResultBuilder]: At program point L115(line 115) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L115-1(line 115) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L895 garLoopResultBuilder]: At program point L107(line 107) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L107-1(line 107) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L895 garLoopResultBuilder]: At program point L91(line 91) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse12 (select .cse0 |~#WrapperStruct00~0.offset|))) (let ((.cse2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse9 (<= .cse12 32767)) (.cse10 (<= 0 .cse12)) (.cse7 (<= (+ .cse12 1) 0)) (.cse8 (<= 0 (+ .cse12 32768)))) (let ((.cse3 (let ((.cse11 (<= (mod (select .cse0 (+ 7 |~#WrapperStruct00~0.offset|)) 256) 0))) (or (and .cse11 .cse9 .cse10) (and .cse7 .cse8 .cse11)))) (.cse4 (= .cse1 (select .cse0 (+ 23 |~#WrapperStruct00~0.offset|)))) (.cse5 (= (+ (select .cse0 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0)) (.cse6 (= .cse2 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))))) (or (and (<= (+ (* (mod 2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse2) .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse4 .cse5 (= .cse1 .cse2) (or (and .cse7 .cse8) (and .cse9 .cse10)) .cse6)))))) [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L91-1(line 91) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L895 garLoopResultBuilder]: At program point L108(line 108) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L108-1(line 108) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 77) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L75-2(lines 75 77) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L895 garLoopResultBuilder]: At program point L100(line 100) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,622 INFO L899 garLoopResultBuilder]: For program point L100-1(line 100) no Hoare annotation was computed. [2023-12-19 15:49:00,622 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse0 (select |#memory_int#1| |~#WrapperStruct00~0.base|))) (let ((.cse12 (select .cse0 |~#WrapperStruct00~0.offset|))) (let ((.cse2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 10)) 256)) (.cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 6)) 256)) (.cse9 (<= .cse12 32767)) (.cse10 (<= 0 .cse12)) (.cse7 (<= (+ .cse12 1) 0)) (.cse8 (<= 0 (+ .cse12 32768)))) (let ((.cse3 (let ((.cse11 (<= (mod (select .cse0 (+ 7 |~#WrapperStruct00~0.offset|)) 256) 0))) (or (and .cse11 .cse9 .cse10) (and .cse7 .cse8 .cse11)))) (.cse4 (= .cse1 (select .cse0 (+ 23 |~#WrapperStruct00~0.offset|)))) (.cse5 (= (+ (select .cse0 (+ 19 |~#WrapperStruct00~0.offset|)) 4) 0)) (.cse6 (= .cse2 (select .cse0 (+ |~#WrapperStruct00~0.offset| 25))))) (or (and (<= (+ (* (mod 2 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 14)) 256)) (div .cse1 (mod (select .cse0 (+ |~#WrapperStruct00~0.offset| 13)) 256))) 1) .cse2) .cse3) (and .cse4 .cse5 .cse6 .cse3) (and .cse4 .cse5 (= .cse1 .cse2) (or (and .cse7 .cse8) (and .cse9 .cse10)) .cse6)))))) [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point L92-1(line 92) no Hoare annotation was computed. [2023-12-19 15:49:00,623 INFO L895 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point L109-1(line 109) no Hoare annotation was computed. [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point L76-2(line 76) no Hoare annotation was computed. [2023-12-19 15:49:00,623 INFO L895 garLoopResultBuilder]: At program point L101(line 101) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int#1| |~#WrapperStruct00~0.base|) |~#WrapperStruct00~0.offset|))) (or (and (<= (+ .cse0 1) 0) (<= 0 (+ .cse0 32768))) (and (<= .cse0 32767) (<= 0 .cse0)))) [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point L101-1(line 101) no Hoare annotation was computed. [2023-12-19 15:49:00,623 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point L20-2(line 20) no Hoare annotation was computed. [2023-12-19 15:49:00,623 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-12-19 15:49:00,625 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:49:00,626 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:49:00,636 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 14] could not be translated [2023-12-19 15:49:00,636 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated [2023-12-19 15:49:00,636 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 13] could not be translated [2023-12-19 15:49:00,636 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated [2023-12-19 15:49:00,636 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][19 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,637 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][19 + ~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated [2023-12-19 15:49:00,638 WARN L1574 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated [2023-12-19 15:49:00,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:49:00 BoogieIcfgContainer [2023-12-19 15:49:00,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:49:00,639 INFO L158 Benchmark]: Toolchain (without parser) took 38674.58ms. Allocated memory was 313.5MB in the beginning and 702.5MB in the end (delta: 389.0MB). Free memory was 261.0MB in the beginning and 636.5MB in the end (delta: -375.5MB). Peak memory consumption was 416.8MB. Max. memory is 8.0GB. [2023-12-19 15:49:00,639 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 210.8MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:49:00,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.07ms. Allocated memory is still 313.5MB. Free memory was 261.0MB in the beginning and 244.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-19 15:49:00,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.86ms. Allocated memory is still 313.5MB. Free memory was 244.1MB in the beginning and 239.7MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:49:00,639 INFO L158 Benchmark]: Boogie Preprocessor took 45.94ms. Allocated memory is still 313.5MB. Free memory was 239.7MB in the beginning and 234.9MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-19 15:49:00,639 INFO L158 Benchmark]: RCFGBuilder took 607.98ms. Allocated memory is still 313.5MB. Free memory was 234.9MB in the beginning and 261.8MB in the end (delta: -26.9MB). Peak memory consumption was 23.5MB. Max. memory is 8.0GB. [2023-12-19 15:49:00,640 INFO L158 Benchmark]: TraceAbstraction took 37666.74ms. Allocated memory was 313.5MB in the beginning and 702.5MB in the end (delta: 389.0MB). Free memory was 260.8MB in the beginning and 636.5MB in the end (delta: -375.7MB). Peak memory consumption was 416.4MB. Max. memory is 8.0GB. [2023-12-19 15:49:00,640 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 210.8MB. Free memory is still 158.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 292.07ms. Allocated memory is still 313.5MB. Free memory was 261.0MB in the beginning and 244.4MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.86ms. Allocated memory is still 313.5MB. Free memory was 244.1MB in the beginning and 239.7MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.94ms. Allocated memory is still 313.5MB. Free memory was 239.7MB in the beginning and 234.9MB in the end (delta: 4.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 607.98ms. Allocated memory is still 313.5MB. Free memory was 234.9MB in the beginning and 261.8MB in the end (delta: -26.9MB). Peak memory consumption was 23.5MB. Max. memory is 8.0GB. * TraceAbstraction took 37666.74ms. Allocated memory was 313.5MB in the beginning and 702.5MB in the end (delta: 389.0MB). Free memory was 260.8MB in the beginning and 636.5MB in the end (delta: -375.7MB). Peak memory consumption was 416.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 14] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 13] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][19 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][7 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][23 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][19 + ~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 6] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 10] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#WrapperStruct00~0!base][~#WrapperStruct00~0!offset + 25] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.6s, OverallIterations: 23, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1955 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1955 mSDsluCounter, 10706 SdHoareTripleChecker+Invalid, 5.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7799 mSDsCounter, 191 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5288 IncrementalHoareTripleChecker+Invalid, 5479 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 191 mSolverCounterUnsat, 2907 mSDtfsCounter, 5288 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4060 GetRequests, 3841 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=409occurred in iteration=22, InterpolantAutomatonStates: 184, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 23 MinimizatonAttempts, 672 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 707 PreInvPairs, 803 NumberOfFragments, 2590 HoareAnnotationTreeSize, 707 FormulaSimplifications, 15667 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 22 FormulaSimplificationsInter, 71864 FormulaSimplificationTreeSizeReductionInter, 11.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 6.5s InterpolantComputationTime, 3548 NumberOfCodeBlocks, 3548 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 3983 ConstructedInterpolants, 0 QuantifiedInterpolants, 21694 SizeOfPredicates, 183 NumberOfNonLiveVariables, 10048 ConjunctsInSsa, 462 ConjunctsInUnsatCore, 27 InterpolantComputations, 23 PerfectInterpolantSequences, 20123/20520 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-12-19 15:49:00,761 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...