/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-sp_file-83.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 21:46:43,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 21:46:44,020 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 21:46:44,024 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 21:46:44,025 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 21:46:44,043 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 21:46:44,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 21:46:44,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 21:46:44,044 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 21:46:44,044 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 21:46:44,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 21:46:44,045 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 21:46:44,045 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 21:46:44,046 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 21:46:44,046 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 21:46:44,046 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 21:46:44,047 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 21:46:44,047 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 21:46:44,047 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 21:46:44,048 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 21:46:44,048 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 21:46:44,049 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 21:46:44,049 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 21:46:44,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 21:46:44,050 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 21:46:44,050 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 21:46:44,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 21:46:44,050 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 21:46:44,051 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 21:46:44,051 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 21:46:44,051 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 21:46:44,052 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 21:46:44,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:46:44,052 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 21:46:44,052 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 21:46:44,053 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 21:46:44,053 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 21:46:44,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 21:46:44,053 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 21:46:44,054 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 21:46:44,054 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 21:46:44,054 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 21:46:44,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 21:46:44,055 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 21:46:44,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 21:46:44,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 21:46:44,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 21:46:44,269 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 21:46:44,269 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 21:46:44,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-83.i [2023-12-15 21:46:45,322 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 21:46:45,529 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 21:46:45,533 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-83.i [2023-12-15 21:46:45,543 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617630dd6/b492e01953254f10a7736206b5e69963/FLAGa7234dc79 [2023-12-15 21:46:45,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617630dd6/b492e01953254f10a7736206b5e69963 [2023-12-15 21:46:45,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 21:46:45,562 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 21:46:45,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 21:46:45,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 21:46:45,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 21:46:45,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:45,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea6443e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45, skipping insertion in model container [2023-12-15 21:46:45,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:45,601 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 21:46:45,758 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-sp_file-83.i[917,930] [2023-12-15 21:46:45,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:46:45,839 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 21:46:45,852 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-sp_file-83.i[917,930] [2023-12-15 21:46:45,895 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 21:46:45,923 INFO L206 MainTranslator]: Completed translation [2023-12-15 21:46:45,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45 WrapperNode [2023-12-15 21:46:45,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 21:46:45,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 21:46:45,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 21:46:45,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 21:46:45,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:45,951 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:45,985 INFO L138 Inliner]: procedures = 29, calls = 153, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 530 [2023-12-15 21:46:45,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 21:46:45,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 21:46:45,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 21:46:45,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 21:46:45,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:45,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,002 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,023 INFO L175 MemorySlicer]: Split 130 memory accesses to 2 slices as follows [2, 128]. 98 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 16 writes are split as follows [0, 16]. [2023-12-15 21:46:46,024 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,024 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,037 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,044 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,050 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 21:46:46,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 21:46:46,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 21:46:46,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 21:46:46,052 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (1/1) ... [2023-12-15 21:46:46,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 21:46:46,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:46,079 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) [2023-12-15 21:46:46,107 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 [2023-12-15 21:46:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 21:46:46,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-15 21:46:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-15 21:46:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-15 21:46:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-15 21:46:46,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-15 21:46:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-15 21:46:46,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-15 21:46:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-15 21:46:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-15 21:46:46,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-15 21:46:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 21:46:46,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 21:46:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 21:46:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-15 21:46:46,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 21:46:46,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 21:46:46,260 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 21:46:46,262 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 21:46:46,724 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 21:46:46,752 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 21:46:46,753 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 21:46:46,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:46:46 BoogieIcfgContainer [2023-12-15 21:46:46,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 21:46:46,755 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 21:46:46,755 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 21:46:46,757 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 21:46:46,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 09:46:45" (1/3) ... [2023-12-15 21:46:46,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c7faf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:46:46, skipping insertion in model container [2023-12-15 21:46:46,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 09:46:45" (2/3) ... [2023-12-15 21:46:46,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54c7faf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 09:46:46, skipping insertion in model container [2023-12-15 21:46:46,759 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 09:46:46" (3/3) ... [2023-12-15 21:46:46,760 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-83.i [2023-12-15 21:46:46,774 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 21:46:46,774 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 21:46:46,822 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 21:46:46,829 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;@7b7de1d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 21:46:46,829 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 21:46:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 89 states have (on average 1.5168539325842696) internal successors, (135), 90 states have internal predecessors, (135), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:46:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 21:46:46,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:46,847 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:46,847 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:46,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:46,852 INFO L85 PathProgramCache]: Analyzing trace with hash -189077222, now seen corresponding path program 1 times [2023-12-15 21:46:46,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:46,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074917770] [2023-12-15 21:46:46,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:46,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:47,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:47,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:47,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074917770] [2023-12-15 21:46:47,080 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 21:46:47,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44321001] [2023-12-15 21:46:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:47,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:46:47,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:47,086 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) [2023-12-15 21:46:47,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 21:46:47,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:47,278 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 21:46:47,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:46:47,321 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-15 21:46:47,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:46:47,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44321001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:47,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:47,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 21:46:47,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727587534] [2023-12-15 21:46:47,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:47,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 21:46:47,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:47,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 21:46:47,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:46:47,366 INFO L87 Difference]: Start difference. First operand has 103 states, 89 states have (on average 1.5168539325842696) internal successors, (135), 90 states have internal predecessors, (135), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 21:46:47,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:47,424 INFO L93 Difference]: Finished difference Result 203 states and 323 transitions. [2023-12-15 21:46:47,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 21:46:47,426 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2023-12-15 21:46:47,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:47,434 INFO L225 Difference]: With dead ends: 203 [2023-12-15 21:46:47,435 INFO L226 Difference]: Without dead ends: 101 [2023-12-15 21:46:47,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 21:46:47,440 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:47,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:46:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-12-15 21:46:47,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2023-12-15 21:46:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 88 states have internal predecessors, (124), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:46:47,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2023-12-15 21:46:47,487 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 101 [2023-12-15 21:46:47,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:47,488 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2023-12-15 21:46:47,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 21:46:47,488 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2023-12-15 21:46:47,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 21:46:47,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:47,492 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:47,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 21:46:47,692 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 [2023-12-15 21:46:47,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:47,693 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:47,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1870376340, now seen corresponding path program 1 times [2023-12-15 21:46:47,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:47,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150570132] [2023-12-15 21:46:47,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:47,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:47,794 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:46:47,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [146871107] [2023-12-15 21:46:47,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:47,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:46:47,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:47,800 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) [2023-12-15 21:46:47,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 21:46:47,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:47,993 INFO L262 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:46:47,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:46:48,057 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2023-12-15 21:46:48,057 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:46:48,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:48,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150570132] [2023-12-15 21:46:48,058 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:46:48,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146871107] [2023-12-15 21:46:48,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146871107] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:48,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:48,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:46:48,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876149117] [2023-12-15 21:46:48,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:48,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:46:48,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:48,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:46:48,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:46:48,061 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 21:46:48,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:48,135 INFO L93 Difference]: Finished difference Result 207 states and 300 transitions. [2023-12-15 21:46:48,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:46:48,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2023-12-15 21:46:48,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:48,141 INFO L225 Difference]: With dead ends: 207 [2023-12-15 21:46:48,141 INFO L226 Difference]: Without dead ends: 107 [2023-12-15 21:46:48,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:46:48,142 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 10 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 415 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 [2023-12-15 21:46:48,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 415 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:46:48,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2023-12-15 21:46:48,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2023-12-15 21:46:48,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 90 states have (on average 1.4) internal successors, (126), 90 states have internal predecessors, (126), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:46:48,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 148 transitions. [2023-12-15 21:46:48,156 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 148 transitions. Word has length 101 [2023-12-15 21:46:48,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:48,157 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 148 transitions. [2023-12-15 21:46:48,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 21:46:48,157 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 148 transitions. [2023-12-15 21:46:48,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 21:46:48,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:48,160 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:48,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 21:46:48,370 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 [2023-12-15 21:46:48,371 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:48,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:48,371 INFO L85 PathProgramCache]: Analyzing trace with hash 485428910, now seen corresponding path program 1 times [2023-12-15 21:46:48,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:48,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767805057] [2023-12-15 21:46:48,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:48,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:48,435 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:46:48,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840701780] [2023-12-15 21:46:48,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:48,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:46:48,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:48,437 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) [2023-12-15 21:46:48,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 21:46:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:48,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:46:48,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:46:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-15 21:46:48,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:46:48,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:48,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767805057] [2023-12-15 21:46:48,661 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:46:48,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840701780] [2023-12-15 21:46:48,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840701780] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:48,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:48,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:46:48,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589539219] [2023-12-15 21:46:48,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:48,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:46:48,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:48,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:46:48,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:46:48,664 INFO L87 Difference]: Start difference. First operand 103 states and 148 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:46:48,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:48,726 INFO L93 Difference]: Finished difference Result 217 states and 312 transitions. [2023-12-15 21:46:48,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:46:48,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2023-12-15 21:46:48,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:48,747 INFO L225 Difference]: With dead ends: 217 [2023-12-15 21:46:48,747 INFO L226 Difference]: Without dead ends: 115 [2023-12-15 21:46:48,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:46:48,748 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 21 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 417 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 [2023-12-15 21:46:48,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 417 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:46:48,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-15 21:46:48,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 105. [2023-12-15 21:46:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 92 states have (on average 1.391304347826087) internal successors, (128), 92 states have internal predecessors, (128), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:46:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2023-12-15 21:46:48,756 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 101 [2023-12-15 21:46:48,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:48,757 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2023-12-15 21:46:48,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:46:48,757 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2023-12-15 21:46:48,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 21:46:48,759 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:48,759 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:48,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 21:46:48,962 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 [2023-12-15 21:46:48,963 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:48,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:48,963 INFO L85 PathProgramCache]: Analyzing trace with hash -323917716, now seen corresponding path program 1 times [2023-12-15 21:46:48,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:48,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271457163] [2023-12-15 21:46:48,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:48,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:49,014 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:46:49,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [14313130] [2023-12-15 21:46:49,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:49,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:46:49,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:49,029 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) [2023-12-15 21:46:49,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 21:46:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:49,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:46:49,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:46:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-15 21:46:49,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:46:49,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:49,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271457163] [2023-12-15 21:46:49,229 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:46:49,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14313130] [2023-12-15 21:46:49,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14313130] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:49,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:49,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:46:49,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778860202] [2023-12-15 21:46:49,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:49,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:46:49,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:49,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:46:49,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:46:49,232 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:46:49,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:49,267 INFO L93 Difference]: Finished difference Result 217 states and 310 transitions. [2023-12-15 21:46:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:46:49,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2023-12-15 21:46:49,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:49,269 INFO L225 Difference]: With dead ends: 217 [2023-12-15 21:46:49,269 INFO L226 Difference]: Without dead ends: 113 [2023-12-15 21:46:49,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:46:49,270 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 12 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:49,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 415 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:46:49,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-15 21:46:49,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 107. [2023-12-15 21:46:49,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 94 states have (on average 1.3829787234042554) internal successors, (130), 94 states have internal predecessors, (130), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:46:49,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 152 transitions. [2023-12-15 21:46:49,279 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 152 transitions. Word has length 101 [2023-12-15 21:46:49,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:49,280 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 152 transitions. [2023-12-15 21:46:49,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:46:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 152 transitions. [2023-12-15 21:46:49,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 21:46:49,281 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:49,281 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:49,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 21:46:49,487 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 [2023-12-15 21:46:49,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:49,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:49,488 INFO L85 PathProgramCache]: Analyzing trace with hash -266659414, now seen corresponding path program 1 times [2023-12-15 21:46:49,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:49,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497421112] [2023-12-15 21:46:49,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:49,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:49,528 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:46:49,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1544775513] [2023-12-15 21:46:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:49,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:46:49,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:49,531 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) [2023-12-15 21:46:49,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 21:46:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:49,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 21:46:49,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:46:49,729 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-15 21:46:49,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:46:49,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:49,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497421112] [2023-12-15 21:46:49,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:46:49,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544775513] [2023-12-15 21:46:49,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544775513] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:49,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:49,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 21:46:49,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656660180] [2023-12-15 21:46:49,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:49,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 21:46:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:49,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 21:46:49,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 21:46:49,732 INFO L87 Difference]: Start difference. First operand 107 states and 152 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:46:49,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:46:49,764 INFO L93 Difference]: Finished difference Result 217 states and 308 transitions. [2023-12-15 21:46:49,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 21:46:49,764 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2023-12-15 21:46:49,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:46:49,766 INFO L225 Difference]: With dead ends: 217 [2023-12-15 21:46:49,766 INFO L226 Difference]: Without dead ends: 111 [2023-12-15 21:46:49,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:46:49,768 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 3 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:46:49,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 415 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 21:46:49,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-12-15 21:46:49,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2023-12-15 21:46:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 96 states have (on average 1.375) internal successors, (132), 96 states have internal predecessors, (132), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:46:49,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 154 transitions. [2023-12-15 21:46:49,796 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 154 transitions. Word has length 101 [2023-12-15 21:46:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:46:49,797 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 154 transitions. [2023-12-15 21:46:49,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:46:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 154 transitions. [2023-12-15 21:46:49,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-15 21:46:49,800 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:46:49,800 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:46:49,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 21:46:50,006 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 [2023-12-15 21:46:50,007 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:46:50,007 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:46:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash -266599832, now seen corresponding path program 1 times [2023-12-15 21:46:50,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:46:50,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886142384] [2023-12-15 21:46:50,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:50,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:46:50,035 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:46:50,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1971838762] [2023-12-15 21:46:50,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:46:50,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:46:50,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:46:50,036 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) [2023-12-15 21:46:50,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 21:46:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:46:50,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-15 21:46:50,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:46:51,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:51,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:51,544 INFO L349 Elim1Store]: treesize reduction 189, result has 27.0 percent of original size [2023-12-15 21:46:51,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 64 treesize of output 138 [2023-12-15 21:46:51,670 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-15 21:46:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:51,694 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:46:51,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 26 [2023-12-15 21:46:51,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:46:51,751 INFO L349 Elim1Store]: treesize reduction 31, result has 32.6 percent of original size [2023-12-15 21:46:51,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 35 [2023-12-15 21:46:51,811 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-15 21:46:51,811 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:46:51,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:46:51,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886142384] [2023-12-15 21:46:51,811 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:46:51,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971838762] [2023-12-15 21:46:51,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971838762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:46:51,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:46:51,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:46:51,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434352820] [2023-12-15 21:46:51,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:46:51,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 21:46:51,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:46:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 21:46:51,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 21:46:51,813 INFO L87 Difference]: Start difference. First operand 109 states and 154 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:46:55,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2023-12-15 21:47:00,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-15 21:47:04,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-15 21:47:04,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:47:04,254 INFO L93 Difference]: Finished difference Result 226 states and 322 transitions. [2023-12-15 21:47:04,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 21:47:04,255 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 101 [2023-12-15 21:47:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:47:04,256 INFO L225 Difference]: With dead ends: 226 [2023-12-15 21:47:04,256 INFO L226 Difference]: Without dead ends: 118 [2023-12-15 21:47:04,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-15 21:47:04,257 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 168 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-15 21:47:04,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 345 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 199 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2023-12-15 21:47:04,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-12-15 21:47:04,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 109. [2023-12-15 21:47:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 96 states have (on average 1.3645833333333333) internal successors, (131), 96 states have internal predecessors, (131), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:47:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 153 transitions. [2023-12-15 21:47:04,266 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 153 transitions. Word has length 101 [2023-12-15 21:47:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:47:04,266 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 153 transitions. [2023-12-15 21:47:04,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 5 states have internal predecessors, (49), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:47:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 153 transitions. [2023-12-15 21:47:04,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 21:47:04,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:47:04,267 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:47:04,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 21:47:04,476 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 [2023-12-15 21:47:04,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:47:04,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:47:04,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1987272132, now seen corresponding path program 1 times [2023-12-15 21:47:04,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:47:04,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101552201] [2023-12-15 21:47:04,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:04,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:47:04,520 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:47:04,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2076754248] [2023-12-15 21:47:04,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:04,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:47:04,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:47:04,523 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) [2023-12-15 21:47:04,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 21:47:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:04,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-15 21:47:04,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:47:04,782 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:47:04,782 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 32 treesize of output 52 [2023-12-15 21:47:04,824 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-15 21:47:04,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 21:47:04,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:47:04,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101552201] [2023-12-15 21:47:04,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:47:04,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076754248] [2023-12-15 21:47:04,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076754248] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 21:47:04,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 21:47:04,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 21:47:04,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029790093] [2023-12-15 21:47:04,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 21:47:04,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 21:47:04,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:47:04,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 21:47:04,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 21:47:04,828 INFO L87 Difference]: Start difference. First operand 109 states and 153 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:47:05,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:47:05,007 INFO L93 Difference]: Finished difference Result 222 states and 313 transitions. [2023-12-15 21:47:05,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 21:47:05,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 102 [2023-12-15 21:47:05,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:47:05,008 INFO L225 Difference]: With dead ends: 222 [2023-12-15 21:47:05,008 INFO L226 Difference]: Without dead ends: 114 [2023-12-15 21:47:05,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-15 21:47:05,009 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 9 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 21:47:05,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 446 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 21:47:05,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-15 21:47:05,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2023-12-15 21:47:05,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 98 states have (on average 1.3571428571428572) internal successors, (133), 98 states have internal predecessors, (133), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-15 21:47:05,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 155 transitions. [2023-12-15 21:47:05,017 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 155 transitions. Word has length 102 [2023-12-15 21:47:05,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:47:05,017 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 155 transitions. [2023-12-15 21:47:05,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-15 21:47:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 155 transitions. [2023-12-15 21:47:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 21:47:05,018 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:47:05,018 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:47:05,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 21:47:05,219 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 [2023-12-15 21:47:05,219 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:47:05,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:47:05,220 INFO L85 PathProgramCache]: Analyzing trace with hash 800166349, now seen corresponding path program 1 times [2023-12-15 21:47:05,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:47:05,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221221757] [2023-12-15 21:47:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:05,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:47:05,250 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:47:05,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581055369] [2023-12-15 21:47:05,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:05,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:47:05,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:47:05,252 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) [2023-12-15 21:47:05,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 21:47:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:05,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 62 conjunts are in the unsatisfiable core [2023-12-15 21:47:05,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:47:06,467 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 15 treesize of output 1 [2023-12-15 21:47:07,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-12-15 21:47:07,558 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-12-15 21:47:07,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-12-15 21:47:08,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,427 INFO L349 Elim1Store]: treesize reduction 266, result has 26.3 percent of original size [2023-12-15 21:47:08,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 75 treesize of output 169 [2023-12-15 21:47:08,636 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 55 treesize of output 39 [2023-12-15 21:47:08,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,648 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-15 21:47:08,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 39 [2023-12-15 21:47:08,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-12-15 21:47:08,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-12-15 21:47:08,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-12-15 21:47:08,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-12-15 21:47:08,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 24 treesize of output 18 [2023-12-15 21:47:08,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:08,982 INFO L349 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2023-12-15 21:47:08,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 29 [2023-12-15 21:47:09,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,026 INFO L349 Elim1Store]: treesize reduction 9, result has 47.1 percent of original size [2023-12-15 21:47:09,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 29 [2023-12-15 21:47:09,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,045 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-12-15 21:47:09,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 21 [2023-12-15 21:47:09,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-12-15 21:47:09,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,089 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-12-15 21:47:09,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2023-12-15 21:47:09,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 23 [2023-12-15 21:47:09,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,420 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2023-12-15 21:47:09,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:09,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 64 treesize of output 36 [2023-12-15 21:47:09,567 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 59 proven. 99 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-15 21:47:09,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:47:09,640 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_720 (Array Int Int))) (or (not (= v_ArrVal_720 (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select v_ArrVal_720 c_~WrapperStruct00_var_1_8_Pointer~0.offset)))) (let ((.cse0 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_8_Pointer~0.base v_ArrVal_720))) (= (mod (select (select .cse0 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256))))) is different from false [2023-12-15 21:47:09,783 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_717 (Array Int Int)) (v_ArrVal_716 (Array Int Int)) (~WrapperStruct00_var_1_16_Pointer~0.base Int) (v_ArrVal_718 (Array Int Int)) (~WrapperStruct00_var_1_16_Pointer~0.offset Int) (v_ArrVal_720 (Array Int Int))) (let ((.cse2 (let ((.cse3 (store (store (store |c_#memory_int#1| c_~WrapperStruct00_var_1_14_Pointer~0.base v_ArrVal_718) c_~WrapperStruct00_var_1_15_Pointer~0.base v_ArrVal_716) c_~WrapperStruct00_var_1_17_Pointer~0.base v_ArrVal_717))) (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (mod (select (select .cse3 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)))))) (or (not (= (store (select (let ((.cse0 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_14_Pointer~0.base (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset 200)))) (store .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse0 ~WrapperStruct00_var_1_16_Pointer~0.base) ~WrapperStruct00_var_1_16_Pointer~0.offset)))) c_~WrapperStruct00_var_1_17_Pointer~0.base) c_~WrapperStruct00_var_1_17_Pointer~0.offset (select v_ArrVal_717 c_~WrapperStruct00_var_1_17_Pointer~0.offset)) v_ArrVal_717)) (let ((.cse1 (store .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base v_ArrVal_720))) (= (mod (select (select .cse1 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256) (mod (select (select .cse1 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset) 65536))) (not (= v_ArrVal_720 (store (select .cse2 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select v_ArrVal_720 c_~WrapperStruct00_var_1_8_Pointer~0.offset))))))) is different from false [2023-12-15 21:47:09,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:47:09,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221221757] [2023-12-15 21:47:09,836 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:47:09,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581055369] [2023-12-15 21:47:09,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581055369] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:47:09,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:47:09,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2023-12-15 21:47:09,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310435438] [2023-12-15 21:47:09,837 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-15 21:47:09,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-15 21:47:09,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:47:09,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-15 21:47:09,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=254, Unknown=2, NotChecked=66, Total=380 [2023-12-15 21:47:09,838 INFO L87 Difference]: Start difference. First operand 111 states and 155 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-15 21:47:11,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:47:11,335 INFO L93 Difference]: Finished difference Result 391 states and 539 transitions. [2023-12-15 21:47:11,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-15 21:47:11,336 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) Word has length 103 [2023-12-15 21:47:11,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:47:11,338 INFO L225 Difference]: With dead ends: 391 [2023-12-15 21:47:11,338 INFO L226 Difference]: Without dead ends: 281 [2023-12-15 21:47:11,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=233, Invalid=829, Unknown=2, NotChecked=126, Total=1190 [2023-12-15 21:47:11,339 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 954 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 825 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 961 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 21:47:11,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [961 Valid, 675 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 825 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 21:47:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-12-15 21:47:11,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 239. [2023-12-15 21:47:11,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 216 states have (on average 1.3564814814814814) internal successors, (293), 218 states have internal predecessors, (293), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-15 21:47:11,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 331 transitions. [2023-12-15 21:47:11,355 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 331 transitions. Word has length 103 [2023-12-15 21:47:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:47:11,355 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 331 transitions. [2023-12-15 21:47:11,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 13 states have internal predecessors, (60), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 3 states have call predecessors, (11), 4 states have call successors, (11) [2023-12-15 21:47:11,356 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 331 transitions. [2023-12-15 21:47:11,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 21:47:11,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:47:11,357 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:47:11,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 21:47:11,568 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 [2023-12-15 21:47:11,568 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:47:11,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:47:11,569 INFO L85 PathProgramCache]: Analyzing trace with hash -479697329, now seen corresponding path program 1 times [2023-12-15 21:47:11,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:47:11,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48262049] [2023-12-15 21:47:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:11,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:47:11,599 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:47:11,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1648111810] [2023-12-15 21:47:11,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:11,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:47:11,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:47:11,600 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) [2023-12-15 21:47:11,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 21:47:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:11,794 INFO L262 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-15 21:47:11,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:47:14,787 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 15 treesize of output 1 [2023-12-15 21:47:15,257 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 28 treesize of output 23 [2023-12-15 21:47:15,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,274 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2023-12-15 21:47:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:15,566 INFO L349 Elim1Store]: treesize reduction 31, result has 26.2 percent of original size [2023-12-15 21:47:15,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 68 [2023-12-15 21:47:16,172 INFO L349 Elim1Store]: treesize reduction 152, result has 24.8 percent of original size [2023-12-15 21:47:16,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 97 treesize of output 119 [2023-12-15 21:47:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-12-15 21:47:17,104 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 21:47:17,253 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_814 (Array Int Int))) (or (not (= v_ArrVal_814 (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select v_ArrVal_814 c_~WrapperStruct00_var_1_8_Pointer~0.offset)))) (let ((.cse0 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_8_Pointer~0.base v_ArrVal_814))) (< (* (mod c_~last_1_WrapperStruct00_var_1_1~0 65536) (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset)) (+ (div (mod (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)) 1))))) is different from false [2023-12-15 21:47:17,412 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_814 (Array Int Int)) (v_z_10 Int)) (let ((.cse1 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset (mod (select (select |c_#memory_int#1| c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256))))) (or (< v_z_10 0) (< 65535 v_z_10) (< |c_ULTIMATE.start_step_~stepLocal_0~0#1| (* v_z_10 (select (select |c_#memory_int#1| c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset))) (let ((.cse0 (store .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base v_ArrVal_814))) (< (* v_z_10 (select (select .cse0 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset)) (+ (div (mod (select (select .cse0 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) (mod (select (select .cse0 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)) 1))) (not (= (store (select .cse1 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select v_ArrVal_814 c_~WrapperStruct00_var_1_8_Pointer~0.offset)) v_ArrVal_814))))) is different from false [2023-12-15 21:47:17,545 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_810 (Array Int Int)) (v_ArrVal_812 (Array Int Int)) (v_ArrVal_814 (Array Int Int)) (v_z_10 Int)) (let ((.cse1 (store |c_#memory_int#1| c_~WrapperStruct00_var_1_14_Pointer~0.base (store (select |c_#memory_int#1| c_~WrapperStruct00_var_1_14_Pointer~0.base) c_~WrapperStruct00_var_1_14_Pointer~0.offset 200)))) (let ((.cse3 (store (store .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base v_ArrVal_812) c_~WrapperStruct00_var_1_17_Pointer~0.base v_ArrVal_810))) (let ((.cse4 (mod (select (select .cse3 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256))) (let ((.cse0 (store .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base (store (select .cse3 c_~WrapperStruct00_var_1_1_Pointer~0.base) c_~WrapperStruct00_var_1_1_Pointer~0.offset .cse4)))) (or (< v_z_10 0) (not (= v_ArrVal_814 (store (select .cse0 c_~WrapperStruct00_var_1_8_Pointer~0.base) c_~WrapperStruct00_var_1_8_Pointer~0.offset (select v_ArrVal_814 c_~WrapperStruct00_var_1_8_Pointer~0.offset)))) (< 65535 v_z_10) (not (= v_ArrVal_810 (store (select (store .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base (store (select .cse1 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset (select (select .cse1 c_~WrapperStruct00_var_1_16_Pointer~0.base) c_~WrapperStruct00_var_1_16_Pointer~0.offset))) c_~WrapperStruct00_var_1_17_Pointer~0.base) c_~WrapperStruct00_var_1_17_Pointer~0.offset (select v_ArrVal_810 c_~WrapperStruct00_var_1_17_Pointer~0.offset)))) (let ((.cse2 (store .cse0 c_~WrapperStruct00_var_1_8_Pointer~0.base v_ArrVal_814))) (< (* (select (select .cse2 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset) v_z_10) (+ (div (mod (select (select .cse2 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) (mod (select (select .cse2 c_~WrapperStruct00_var_1_4_Pointer~0.base) c_~WrapperStruct00_var_1_4_Pointer~0.offset) 256)) 1))) (< (div (mod (select (select .cse3 c_~WrapperStruct00_var_1_3_Pointer~0.base) c_~WrapperStruct00_var_1_3_Pointer~0.offset) 65536) .cse4) (* v_z_10 (select (select .cse3 c_~WrapperStruct00_var_1_15_Pointer~0.base) c_~WrapperStruct00_var_1_15_Pointer~0.offset))))))))) is different from false [2023-12-15 21:47:17,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 21:47:17,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48262049] [2023-12-15 21:47:17,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 21:47:17,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648111810] [2023-12-15 21:47:17,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648111810] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 21:47:17,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-15 21:47:17,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2023-12-15 21:47:17,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081371646] [2023-12-15 21:47:17,627 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-15 21:47:17,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 21:47:17,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 21:47:17,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 21:47:17,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=152, Unknown=3, NotChecked=78, Total=272 [2023-12-15 21:47:17,629 INFO L87 Difference]: Start difference. First operand 239 states and 331 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 21:47:23,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 21:47:23,614 INFO L93 Difference]: Finished difference Result 605 states and 840 transitions. [2023-12-15 21:47:23,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 21:47:23,618 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2023-12-15 21:47:23,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 21:47:23,622 INFO L225 Difference]: With dead ends: 605 [2023-12-15 21:47:23,622 INFO L226 Difference]: Without dead ends: 367 [2023-12-15 21:47:23,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=85, Invalid=266, Unknown=3, NotChecked=108, Total=462 [2023-12-15 21:47:23,625 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 436 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-15 21:47:23,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 525 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 576 Invalid, 3 Unknown, 0 Unchecked, 4.0s Time] [2023-12-15 21:47:23,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2023-12-15 21:47:23,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 257. [2023-12-15 21:47:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 234 states have (on average 1.3675213675213675) internal successors, (320), 236 states have internal predecessors, (320), 19 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2023-12-15 21:47:23,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 358 transitions. [2023-12-15 21:47:23,644 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 358 transitions. Word has length 103 [2023-12-15 21:47:23,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 21:47:23,645 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 358 transitions. [2023-12-15 21:47:23,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-15 21:47:23,645 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 358 transitions. [2023-12-15 21:47:23,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-15 21:47:23,646 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 21:47:23,646 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:47:23,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-15 21:47:23,853 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 [2023-12-15 21:47:23,853 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 21:47:23,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 21:47:23,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1500765683, now seen corresponding path program 1 times [2023-12-15 21:47:23,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 21:47:23,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37753354] [2023-12-15 21:47:23,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:23,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 21:47:23,875 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 21:47:23,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [169884550] [2023-12-15 21:47:23,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 21:47:23,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 21:47:23,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 21:47:23,893 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) [2023-12-15 21:47:23,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 21:47:24,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 21:47:24,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 409 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-15 21:47:24,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 21:47:25,935 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 15 treesize of output 1 [2023-12-15 21:47:26,229 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 28 treesize of output 23 [2023-12-15 21:47:26,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,240 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 22 [2023-12-15 21:47:26,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:26,582 INFO L349 Elim1Store]: treesize reduction 56, result has 41.1 percent of original size [2023-12-15 21:47:26,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 80 [2023-12-15 21:47:28,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:28,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-15 21:47:51,068 WARN L293 SmtUtils]: Spent 22.47s on a formula simplification. DAG size of input: 717 DAG size of output: 547 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-15 21:47:51,068 INFO L349 Elim1Store]: treesize reduction 528, result has 69.8 percent of original size [2023-12-15 21:47:51,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 17 select indices, 17 select index equivalence classes, 3 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 150 case distinctions, treesize of input 312 treesize of output 1408 Received shutdown request... [2023-12-15 21:47:53,099 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 21:47:53,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 21:47:53,112 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:47:53,114 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 21:47:53,306 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 [2023-12-15 21:47:53,306 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-123-7-6-1 context. [2023-12-15 21:47:53,310 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 21:47:53,312 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 21:47:53,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 09:47:53 BoogieIcfgContainer [2023-12-15 21:47:53,314 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 21:47:53,315 INFO L158 Benchmark]: Toolchain (without parser) took 67753.17ms. Allocated memory was 246.4MB in the beginning and 436.2MB in the end (delta: 189.8MB). Free memory was 198.2MB in the beginning and 196.0MB in the end (delta: 2.2MB). Peak memory consumption was 248.8MB. Max. memory is 8.0GB. [2023-12-15 21:47:53,315 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 185.6MB. Free memory was 139.0MB in the beginning and 138.9MB in the end (delta: 132.3kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 21:47:53,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.86ms. Allocated memory is still 246.4MB. Free memory was 197.8MB in the beginning and 182.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2023-12-15 21:47:53,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.32ms. Allocated memory is still 246.4MB. Free memory was 182.1MB in the beginning and 177.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:47:53,316 INFO L158 Benchmark]: Boogie Preprocessor took 64.93ms. Allocated memory is still 246.4MB. Free memory was 177.9MB in the beginning and 173.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-15 21:47:53,316 INFO L158 Benchmark]: RCFGBuilder took 701.85ms. Allocated memory is still 246.4MB. Free memory was 173.1MB in the beginning and 209.2MB in the end (delta: -36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2023-12-15 21:47:53,316 INFO L158 Benchmark]: TraceAbstraction took 66559.66ms. Allocated memory was 246.4MB in the beginning and 436.2MB in the end (delta: 189.8MB). Free memory was 208.2MB in the beginning and 196.0MB in the end (delta: 12.2MB). Peak memory consumption was 257.2MB. Max. memory is 8.0GB. [2023-12-15 21:47:53,317 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 185.6MB. Free memory was 139.0MB in the beginning and 138.9MB in the end (delta: 132.3kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 361.86ms. Allocated memory is still 246.4MB. Free memory was 197.8MB in the beginning and 182.5MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.32ms. Allocated memory is still 246.4MB. Free memory was 182.1MB in the beginning and 177.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.93ms. Allocated memory is still 246.4MB. Free memory was 177.9MB in the beginning and 173.1MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 701.85ms. Allocated memory is still 246.4MB. Free memory was 173.1MB in the beginning and 209.2MB in the end (delta: -36.2MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. * TraceAbstraction took 66559.66ms. Allocated memory was 246.4MB in the beginning and 436.2MB in the end (delta: 189.8MB). Free memory was 208.2MB in the beginning and 196.0MB in the end (delta: 12.2MB). Peak memory consumption was 257.2MB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 104 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ∧-123-7-6-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.5s, OverallIterations: 10, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 1621 SdHoareTripleChecker+Valid, 17.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1613 mSDsluCounter, 3795 SdHoareTripleChecker+Invalid, 17.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2664 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1823 IncrementalHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 1131 mSDtfsCounter, 1823 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 997 GetRequests, 919 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=9, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 186 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 12.2s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 905 ConstructedInterpolants, 19 QuantifiedInterpolants, 12557 SizeOfPredicates, 81 NumberOfNonLiveVariables, 3717 ConjunctsInSsa, 162 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 1809/1980 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown