/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-27.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:58:24,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:58:24,756 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:58:24,760 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:58:24,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:58:24,787 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:58:24,788 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:58:24,788 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:58:24,789 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:58:24,792 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:58:24,793 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:58:24,793 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:58:24,793 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:58:24,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:58:24,795 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:58:24,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:58:24,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:58:24,795 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:58:24,796 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:58:24,796 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:58:24,796 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:58:24,797 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:58:24,797 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:58:24,797 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:58:24,797 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:58:24,797 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:58:24,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:58:24,798 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:58:24,798 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:58:24,799 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:58:24,799 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:58:24,800 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:58:24,800 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:58:24,800 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:58:24,800 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:58:24,800 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:58:24,800 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:58:24,801 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:58:24,801 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:58:24,801 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:58:24,801 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:58:24,801 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:58:24,802 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:58:24,802 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:58:25,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:58:25,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:58:25,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:58:25,054 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:58:25,054 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:58:25,055 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-27.i [2023-12-16 03:58:26,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:58:26,472 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:58:26,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-27.i [2023-12-16 03:58:26,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6f148a65/a7a04e9090e5423ab96f4c0a7f3ff911/FLAGb50739659 [2023-12-16 03:58:26,498 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6f148a65/a7a04e9090e5423ab96f4c0a7f3ff911 [2023-12-16 03:58:26,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:58:26,501 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:58:26,502 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:58:26,502 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:58:26,506 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:58:26,507 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:26,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d06025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26, skipping insertion in model container [2023-12-16 03:58:26,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:26,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:58:26,678 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_operatoramount_amount250_file-27.i[916,929] [2023-12-16 03:58:26,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:58:26,848 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:58:26,859 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_operatoramount_amount250_file-27.i[916,929] [2023-12-16 03:58:26,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:58:26,929 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:58:26,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26 WrapperNode [2023-12-16 03:58:26,930 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:58:26,931 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:58:26,931 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:58:26,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:58:26,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:26,959 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,027 INFO L138 Inliner]: procedures = 26, calls = 64, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 426 [2023-12-16 03:58:27,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:58:27,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:58:27,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:58:27,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:58:27,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,090 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 03:58:27,091 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,135 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,141 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,145 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:58:27,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:58:27,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:58:27,156 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:58:27,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (1/1) ... [2023-12-16 03:58:27,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:58:27,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:27,185 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) [2023-12-16 03:58:27,215 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 [2023-12-16 03:58:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:58:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:58:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:58:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:58:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:58:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:58:27,355 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:58:27,359 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:58:28,034 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:58:28,084 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:58:28,085 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:58:28,085 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:58:28 BoogieIcfgContainer [2023-12-16 03:58:28,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:58:28,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:58:28,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:58:28,090 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:58:28,090 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:58:26" (1/3) ... [2023-12-16 03:58:28,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a64b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:58:28, skipping insertion in model container [2023-12-16 03:58:28,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:58:26" (2/3) ... [2023-12-16 03:58:28,092 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64a64b9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:58:28, skipping insertion in model container [2023-12-16 03:58:28,092 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:58:28" (3/3) ... [2023-12-16 03:58:28,093 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-27.i [2023-12-16 03:58:28,109 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:58:28,109 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:58:28,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:58:28,167 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;@6ff95561, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:58:28,168 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:58:28,175 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 113 states have (on average 1.4955752212389382) internal successors, (169), 114 states have internal predecessors, (169), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-16 03:58:28,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-12-16 03:58:28,193 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:28,194 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:28,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:28,198 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:28,199 INFO L85 PathProgramCache]: Analyzing trace with hash 97642119, now seen corresponding path program 1 times [2023-12-16 03:58:28,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:28,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139825402] [2023-12-16 03:58:28,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:28,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:28,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:28,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:28,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139825402] [2023-12-16 03:58:28,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:58:28,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858590490] [2023-12-16 03:58:28,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:28,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:28,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:28,517 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) [2023-12-16 03:58:28,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:58:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:28,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:58:28,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2023-12-16 03:58:28,886 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:28,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858590490] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:28,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:28,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:58:28,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977075080] [2023-12-16 03:58:28,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:28,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:58:28,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:28,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:58:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:58:28,925 INFO L87 Difference]: Start difference. First operand has 167 states, 113 states have (on average 1.4955752212389382) internal successors, (169), 114 states have internal predecessors, (169), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) Second operand has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-16 03:58:29,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:29,002 INFO L93 Difference]: Finished difference Result 330 states and 589 transitions. [2023-12-16 03:58:29,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:58:29,005 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51) Word has length 335 [2023-12-16 03:58:29,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:29,015 INFO L225 Difference]: With dead ends: 330 [2023-12-16 03:58:29,015 INFO L226 Difference]: Without dead ends: 164 [2023-12-16 03:58:29,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:58:29,026 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:29,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 259 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:58:29,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-16 03:58:29,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-12-16 03:58:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 111 states have (on average 1.4414414414414414) internal successors, (160), 111 states have internal predecessors, (160), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-16 03:58:29,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 262 transitions. [2023-12-16 03:58:29,104 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 262 transitions. Word has length 335 [2023-12-16 03:58:29,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:29,104 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 262 transitions. [2023-12-16 03:58:29,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-16 03:58:29,106 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 262 transitions. [2023-12-16 03:58:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 03:58:29,120 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:29,121 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:29,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:29,329 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 [2023-12-16 03:58:29,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:29,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:29,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1095768503, now seen corresponding path program 1 times [2023-12-16 03:58:29,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:29,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761563830] [2023-12-16 03:58:29,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:29,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:29,462 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:29,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120380226] [2023-12-16 03:58:29,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:29,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:29,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:29,470 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) [2023-12-16 03:58:29,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:58:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:29,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 801 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 03:58:29,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2023-12-16 03:58:31,277 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:31,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:31,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761563830] [2023-12-16 03:58:31,278 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:31,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120380226] [2023-12-16 03:58:31,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120380226] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:31,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:31,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:58:31,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798588167] [2023-12-16 03:58:31,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:31,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:58:31,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:31,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:58:31,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:58:31,284 INFO L87 Difference]: Start difference. First operand 164 states and 262 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:31,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:31,370 INFO L93 Difference]: Finished difference Result 335 states and 534 transitions. [2023-12-16 03:58:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 03:58:31,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 336 [2023-12-16 03:58:31,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:31,373 INFO L225 Difference]: With dead ends: 335 [2023-12-16 03:58:31,374 INFO L226 Difference]: Without dead ends: 172 [2023-12-16 03:58:31,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:58:31,375 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 12 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 766 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 [2023-12-16 03:58:31,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 766 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:58:31,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2023-12-16 03:58:31,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 166. [2023-12-16 03:58:31,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 113 states have (on average 1.4336283185840708) internal successors, (162), 113 states have internal predecessors, (162), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-16 03:58:31,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 264 transitions. [2023-12-16 03:58:31,391 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 264 transitions. Word has length 336 [2023-12-16 03:58:31,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:31,393 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 264 transitions. [2023-12-16 03:58:31,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:31,394 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 264 transitions. [2023-12-16 03:58:31,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 03:58:31,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:31,396 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:31,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:31,603 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 [2023-12-16 03:58:31,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:31,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:31,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1038510201, now seen corresponding path program 1 times [2023-12-16 03:58:31,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:31,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268856683] [2023-12-16 03:58:31,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:31,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:31,684 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:31,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [396801461] [2023-12-16 03:58:31,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:31,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:31,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:31,689 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) [2023-12-16 03:58:31,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:58:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:31,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 03:58:31,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2023-12-16 03:58:32,018 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:32,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:32,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268856683] [2023-12-16 03:58:32,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:32,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396801461] [2023-12-16 03:58:32,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396801461] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:32,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:32,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:58:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243677340] [2023-12-16 03:58:32,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:32,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:58:32,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:32,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:58:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:58:32,022 INFO L87 Difference]: Start difference. First operand 166 states and 264 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:32,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:32,080 INFO L93 Difference]: Finished difference Result 335 states and 532 transitions. [2023-12-16 03:58:32,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 03:58:32,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 336 [2023-12-16 03:58:32,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:32,084 INFO L225 Difference]: With dead ends: 335 [2023-12-16 03:58:32,084 INFO L226 Difference]: Without dead ends: 170 [2023-12-16 03:58:32,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:58:32,087 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 3 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:32,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 766 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:58:32,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-12-16 03:58:32,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2023-12-16 03:58:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 115 states have (on average 1.4260869565217391) internal successors, (164), 115 states have internal predecessors, (164), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2023-12-16 03:58:32,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 266 transitions. [2023-12-16 03:58:32,116 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 266 transitions. Word has length 336 [2023-12-16 03:58:32,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:32,117 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 266 transitions. [2023-12-16 03:58:32,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:32,118 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 266 transitions. [2023-12-16 03:58:32,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 03:58:32,121 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:32,121 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:32,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:32,328 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 [2023-12-16 03:58:32,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:32,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:32,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1038450619, now seen corresponding path program 1 times [2023-12-16 03:58:32,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:32,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804340275] [2023-12-16 03:58:32,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:32,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:32,376 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:32,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [283340518] [2023-12-16 03:58:32,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:32,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:32,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:32,378 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) [2023-12-16 03:58:32,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:58:32,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:32,601 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 03:58:32,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:33,050 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2023-12-16 03:58:33,051 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:33,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:33,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804340275] [2023-12-16 03:58:33,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:33,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283340518] [2023-12-16 03:58:33,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283340518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:33,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:33,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 03:58:33,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282211500] [2023-12-16 03:58:33,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:33,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 03:58:33,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:33,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 03:58:33,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:58:33,054 INFO L87 Difference]: Start difference. First operand 168 states and 266 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:33,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:33,955 INFO L93 Difference]: Finished difference Result 964 states and 1524 transitions. [2023-12-16 03:58:33,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 03:58:33,956 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 336 [2023-12-16 03:58:33,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:33,961 INFO L225 Difference]: With dead ends: 964 [2023-12-16 03:58:33,961 INFO L226 Difference]: Without dead ends: 797 [2023-12-16 03:58:33,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2023-12-16 03:58:33,963 INFO L413 NwaCegarLoop]: 480 mSDtfsCounter, 870 mSDsluCounter, 1813 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2293 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:33,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 2293 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 03:58:33,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2023-12-16 03:58:34,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 453. [2023-12-16 03:58:34,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 296 states have (on average 1.364864864864865) internal successors, (404), 296 states have internal predecessors, (404), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2023-12-16 03:58:34,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 710 transitions. [2023-12-16 03:58:34,029 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 710 transitions. Word has length 336 [2023-12-16 03:58:34,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:34,030 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 710 transitions. [2023-12-16 03:58:34,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:34,031 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 710 transitions. [2023-12-16 03:58:34,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 03:58:34,033 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:34,033 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:34,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:34,240 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 [2023-12-16 03:58:34,241 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:34,241 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:34,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1432817405, now seen corresponding path program 1 times [2023-12-16 03:58:34,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:34,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722666057] [2023-12-16 03:58:34,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:34,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:34,289 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:34,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1374121681] [2023-12-16 03:58:34,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:34,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:34,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:34,291 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) [2023-12-16 03:58:34,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 03:58:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:34,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 03:58:34,530 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:34,874 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2023-12-16 03:58:34,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:34,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:34,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722666057] [2023-12-16 03:58:34,875 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:34,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374121681] [2023-12-16 03:58:34,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374121681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:34,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:34,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 03:58:34,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835498852] [2023-12-16 03:58:34,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:34,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 03:58:34,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:34,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 03:58:34,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:58:34,885 INFO L87 Difference]: Start difference. First operand 453 states and 710 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:35,833 INFO L93 Difference]: Finished difference Result 1822 states and 2825 transitions. [2023-12-16 03:58:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 03:58:35,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 336 [2023-12-16 03:58:35,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:35,841 INFO L225 Difference]: With dead ends: 1822 [2023-12-16 03:58:35,842 INFO L226 Difference]: Without dead ends: 1462 [2023-12-16 03:58:35,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2023-12-16 03:58:35,844 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 1187 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 150 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 150 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:35,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 2006 Invalid, 1010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [150 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 03:58:35,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1462 states. [2023-12-16 03:58:35,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1462 to 518. [2023-12-16 03:58:35,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 361 states have (on average 1.3988919667590027) internal successors, (505), 361 states have internal predecessors, (505), 153 states have call successors, (153), 3 states have call predecessors, (153), 3 states have return successors, (153), 153 states have call predecessors, (153), 153 states have call successors, (153) [2023-12-16 03:58:35,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 811 transitions. [2023-12-16 03:58:35,894 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 811 transitions. Word has length 336 [2023-12-16 03:58:35,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:35,895 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 811 transitions. [2023-12-16 03:58:35,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:35,895 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 811 transitions. [2023-12-16 03:58:35,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2023-12-16 03:58:35,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:35,897 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:35,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:36,104 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 [2023-12-16 03:58:36,105 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:36,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1942290495, now seen corresponding path program 1 times [2023-12-16 03:58:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:36,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576015266] [2023-12-16 03:58:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:36,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:36,146 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:36,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1130152980] [2023-12-16 03:58:36,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:36,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:36,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:36,148 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) [2023-12-16 03:58:36,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 03:58:36,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:36,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-16 03:58:36,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:37,027 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 2468 proven. 57 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2023-12-16 03:58:37,027 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:58:37,348 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2023-12-16 03:58:37,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:37,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576015266] [2023-12-16 03:58:37,348 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:37,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130152980] [2023-12-16 03:58:37,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130152980] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 03:58:37,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 03:58:37,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 14 [2023-12-16 03:58:37,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679248445] [2023-12-16 03:58:37,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:37,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 03:58:37,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 03:58:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-12-16 03:58:37,351 INFO L87 Difference]: Start difference. First operand 518 states and 811 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:37,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:37,782 INFO L93 Difference]: Finished difference Result 1466 states and 2271 transitions. [2023-12-16 03:58:37,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 03:58:37,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 336 [2023-12-16 03:58:37,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:37,788 INFO L225 Difference]: With dead ends: 1466 [2023-12-16 03:58:37,788 INFO L226 Difference]: Without dead ends: 1041 [2023-12-16 03:58:37,789 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 671 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2023-12-16 03:58:37,791 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 386 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 386 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:37,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [386 Valid, 1059 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 03:58:37,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2023-12-16 03:58:37,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 861. [2023-12-16 03:58:37,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 641 states have (on average 1.4336973478939157) internal successors, (919), 643 states have internal predecessors, (919), 213 states have call successors, (213), 6 states have call predecessors, (213), 6 states have return successors, (213), 211 states have call predecessors, (213), 213 states have call successors, (213) [2023-12-16 03:58:37,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1345 transitions. [2023-12-16 03:58:37,849 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1345 transitions. Word has length 336 [2023-12-16 03:58:37,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:37,850 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1345 transitions. [2023-12-16 03:58:37,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:37,851 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1345 transitions. [2023-12-16 03:58:37,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2023-12-16 03:58:37,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:37,854 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:37,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:38,061 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 [2023-12-16 03:58:38,062 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:38,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:38,062 INFO L85 PathProgramCache]: Analyzing trace with hash -379503359, now seen corresponding path program 1 times [2023-12-16 03:58:38,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:38,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122624662] [2023-12-16 03:58:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:38,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:38,109 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:38,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1070274759] [2023-12-16 03:58:38,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:38,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:38,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:38,110 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) [2023-12-16 03:58:38,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 03:58:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:38,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:58:38,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:38,384 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2023-12-16 03:58:38,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:38,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:38,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122624662] [2023-12-16 03:58:38,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:38,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070274759] [2023-12-16 03:58:38,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070274759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:38,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:38,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:58:38,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809554079] [2023-12-16 03:58:38,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:38,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 03:58:38,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:38,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 03:58:38,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:58:38,387 INFO L87 Difference]: Start difference. First operand 861 states and 1345 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:38,651 INFO L93 Difference]: Finished difference Result 2027 states and 3151 transitions. [2023-12-16 03:58:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 03:58:38,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 337 [2023-12-16 03:58:38,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:38,662 INFO L225 Difference]: With dead ends: 2027 [2023-12-16 03:58:38,663 INFO L226 Difference]: Without dead ends: 1263 [2023-12-16 03:58:38,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-16 03:58:38,667 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 224 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:38,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 653 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 03:58:38,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1263 states. [2023-12-16 03:58:38,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1263 to 861. [2023-12-16 03:58:38,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 641 states have (on average 1.3946957878315132) internal successors, (894), 643 states have internal predecessors, (894), 213 states have call successors, (213), 6 states have call predecessors, (213), 6 states have return successors, (213), 211 states have call predecessors, (213), 213 states have call successors, (213) [2023-12-16 03:58:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1320 transitions. [2023-12-16 03:58:38,737 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1320 transitions. Word has length 337 [2023-12-16 03:58:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:38,737 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1320 transitions. [2023-12-16 03:58:38,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:38,738 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1320 transitions. [2023-12-16 03:58:38,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 03:58:38,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:38,740 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:38,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:38,947 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 [2023-12-16 03:58:38,948 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:38,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:38,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1095046908, now seen corresponding path program 1 times [2023-12-16 03:58:38,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:38,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383889188] [2023-12-16 03:58:38,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:38,987 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:38,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135386962] [2023-12-16 03:58:38,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:38,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:38,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:38,991 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) [2023-12-16 03:58:38,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 03:58:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:39,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 03:58:39,257 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:39,418 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 2468 proven. 57 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2023-12-16 03:58:39,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:58:39,608 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 93 proven. 57 refuted. 0 times theorem prover too weak. 4950 trivial. 0 not checked. [2023-12-16 03:58:39,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:39,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383889188] [2023-12-16 03:58:39,609 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:39,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135386962] [2023-12-16 03:58:39,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135386962] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:58:39,609 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:58:39,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 03:58:39,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817634952] [2023-12-16 03:58:39,609 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:58:39,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 03:58:39,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:39,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 03:58:39,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 03:58:39,611 INFO L87 Difference]: Start difference. First operand 861 states and 1320 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-16 03:58:39,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:39,941 INFO L93 Difference]: Finished difference Result 1576 states and 2404 transitions. [2023-12-16 03:58:39,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 03:58:39,942 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) Word has length 338 [2023-12-16 03:58:39,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:39,946 INFO L225 Difference]: With dead ends: 1576 [2023-12-16 03:58:39,946 INFO L226 Difference]: Without dead ends: 810 [2023-12-16 03:58:39,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 678 GetRequests, 666 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2023-12-16 03:58:39,949 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 497 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:39,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 608 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 03:58:39,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2023-12-16 03:58:39,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 804. [2023-12-16 03:58:40,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 581 states have (on average 1.3631669535283992) internal successors, (792), 583 states have internal predecessors, (792), 213 states have call successors, (213), 9 states have call predecessors, (213), 9 states have return successors, (213), 211 states have call predecessors, (213), 213 states have call successors, (213) [2023-12-16 03:58:40,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1218 transitions. [2023-12-16 03:58:40,004 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1218 transitions. Word has length 338 [2023-12-16 03:58:40,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:40,004 INFO L495 AbstractCegarLoop]: Abstraction has 804 states and 1218 transitions. [2023-12-16 03:58:40,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (70), 2 states have call predecessors, (70), 4 states have return successors, (71), 2 states have call predecessors, (71), 2 states have call successors, (71) [2023-12-16 03:58:40,005 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1218 transitions. [2023-12-16 03:58:40,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 03:58:40,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:40,007 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:40,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:40,214 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 [2023-12-16 03:58:40,215 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:40,215 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:40,215 INFO L85 PathProgramCache]: Analyzing trace with hash 65687610, now seen corresponding path program 1 times [2023-12-16 03:58:40,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:40,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842020871] [2023-12-16 03:58:40,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:40,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:40,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:40,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831824893] [2023-12-16 03:58:40,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:40,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:40,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:40,255 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) [2023-12-16 03:58:40,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 03:58:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:40,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 03:58:40,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:41,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 2810 proven. 207 refuted. 0 times theorem prover too weak. 2083 trivial. 0 not checked. [2023-12-16 03:58:41,081 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:58:41,412 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 87 proven. 210 refuted. 0 times theorem prover too weak. 4803 trivial. 0 not checked. [2023-12-16 03:58:41,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:41,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842020871] [2023-12-16 03:58:41,413 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:41,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831824893] [2023-12-16 03:58:41,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831824893] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:58:41,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:58:41,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-16 03:58:41,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705011835] [2023-12-16 03:58:41,413 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:58:41,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-16 03:58:41,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:41,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-16 03:58:41,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-12-16 03:58:41,416 INFO L87 Difference]: Start difference. First operand 804 states and 1218 transitions. Second operand has 15 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (91), 3 states have call predecessors, (91), 7 states have return successors, (92), 4 states have call predecessors, (92), 4 states have call successors, (92) [2023-12-16 03:58:42,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:42,077 INFO L93 Difference]: Finished difference Result 1553 states and 2322 transitions. [2023-12-16 03:58:42,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 03:58:42,079 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (91), 3 states have call predecessors, (91), 7 states have return successors, (92), 4 states have call predecessors, (92), 4 states have call successors, (92) Word has length 338 [2023-12-16 03:58:42,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:42,083 INFO L225 Difference]: With dead ends: 1553 [2023-12-16 03:58:42,083 INFO L226 Difference]: Without dead ends: 850 [2023-12-16 03:58:42,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 660 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2023-12-16 03:58:42,086 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 335 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 877 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:42,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 839 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 877 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 03:58:42,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2023-12-16 03:58:42,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 844. [2023-12-16 03:58:42,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 844 states, 611 states have (on average 1.3404255319148937) internal successors, (819), 613 states have internal predecessors, (819), 213 states have call successors, (213), 19 states have call predecessors, (213), 19 states have return successors, (213), 211 states have call predecessors, (213), 213 states have call successors, (213) [2023-12-16 03:58:42,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1245 transitions. [2023-12-16 03:58:42,154 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1245 transitions. Word has length 338 [2023-12-16 03:58:42,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:42,155 INFO L495 AbstractCegarLoop]: Abstraction has 844 states and 1245 transitions. [2023-12-16 03:58:42,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.066666666666666) internal successors, (136), 15 states have internal predecessors, (136), 4 states have call successors, (91), 3 states have call predecessors, (91), 7 states have return successors, (92), 4 states have call predecessors, (92), 4 states have call successors, (92) [2023-12-16 03:58:42,155 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1245 transitions. [2023-12-16 03:58:42,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 03:58:42,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:42,158 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:42,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:42,365 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 [2023-12-16 03:58:42,366 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:42,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:42,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1306119688, now seen corresponding path program 1 times [2023-12-16 03:58:42,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:42,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989100141] [2023-12-16 03:58:42,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:42,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:42,411 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:42,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [398409357] [2023-12-16 03:58:42,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:42,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:42,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:42,413 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) [2023-12-16 03:58:42,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-16 03:58:42,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:42,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 03:58:42,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2023-12-16 03:58:43,423 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:58:43,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:43,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989100141] [2023-12-16 03:58:43,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:43,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398409357] [2023-12-16 03:58:43,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398409357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:58:43,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:58:43,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 03:58:43,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681419474] [2023-12-16 03:58:43,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:58:43,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 03:58:43,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:43,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 03:58:43,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:58:43,426 INFO L87 Difference]: Start difference. First operand 844 states and 1245 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:44,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:58:44,054 INFO L93 Difference]: Finished difference Result 3048 states and 4484 transitions. [2023-12-16 03:58:44,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 03:58:44,055 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) Word has length 338 [2023-12-16 03:58:44,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:58:44,065 INFO L225 Difference]: With dead ends: 3048 [2023-12-16 03:58:44,066 INFO L226 Difference]: Without dead ends: 2313 [2023-12-16 03:58:44,068 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 341 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-12-16 03:58:44,068 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 432 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 03:58:44,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 1406 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 03:58:44,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2023-12-16 03:58:44,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 2006. [2023-12-16 03:58:44,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2006 states, 1481 states have (on average 1.3463875759621877) internal successors, (1994), 1490 states have internal predecessors, (1994), 480 states have call successors, (480), 44 states have call predecessors, (480), 44 states have return successors, (480), 471 states have call predecessors, (480), 480 states have call successors, (480) [2023-12-16 03:58:44,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2006 states to 2006 states and 2954 transitions. [2023-12-16 03:58:44,247 INFO L78 Accepts]: Start accepts. Automaton has 2006 states and 2954 transitions. Word has length 338 [2023-12-16 03:58:44,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:58:44,247 INFO L495 AbstractCegarLoop]: Abstraction has 2006 states and 2954 transitions. [2023-12-16 03:58:44,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2023-12-16 03:58:44,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2006 states and 2954 transitions. [2023-12-16 03:58:44,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 03:58:44,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:58:44,250 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:58:44,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-16 03:58:44,458 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 [2023-12-16 03:58:44,459 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:58:44,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:58:44,459 INFO L85 PathProgramCache]: Analyzing trace with hash -295002438, now seen corresponding path program 1 times [2023-12-16 03:58:44,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:58:44,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382568792] [2023-12-16 03:58:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:44,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:58:44,495 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:58:44,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747682530] [2023-12-16 03:58:44,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:58:44,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:58:44,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:58:44,497 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:58:44,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-16 03:58:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:58:44,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-16 03:58:44,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:58:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 2613 proven. 423 refuted. 0 times theorem prover too weak. 2064 trivial. 0 not checked. [2023-12-16 03:58:46,795 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:58:49,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 93 proven. 348 refuted. 0 times theorem prover too weak. 4659 trivial. 0 not checked. [2023-12-16 03:58:49,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:58:49,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382568792] [2023-12-16 03:58:49,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:58:49,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747682530] [2023-12-16 03:58:49,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747682530] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 03:58:49,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 03:58:49,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2023-12-16 03:58:49,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65716562] [2023-12-16 03:58:49,330 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 03:58:49,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-12-16 03:58:49,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:58:49,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-12-16 03:58:49,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1011, Unknown=0, NotChecked=0, Total=1260 [2023-12-16 03:58:49,332 INFO L87 Difference]: Start difference. First operand 2006 states and 2954 transitions. Second operand has 36 states, 35 states have (on average 5.142857142857143) internal successors, (180), 34 states have internal predecessors, (180), 10 states have call successors, (102), 6 states have call predecessors, (102), 12 states have return successors, (102), 10 states have call predecessors, (102), 10 states have call successors, (102) [2023-12-16 03:59:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:59:10,595 INFO L93 Difference]: Finished difference Result 45338 states and 63897 transitions. [2023-12-16 03:59:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 356 states. [2023-12-16 03:59:10,596 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 5.142857142857143) internal successors, (180), 34 states have internal predecessors, (180), 10 states have call successors, (102), 6 states have call predecessors, (102), 12 states have return successors, (102), 10 states have call predecessors, (102), 10 states have call successors, (102) Word has length 338 [2023-12-16 03:59:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:59:10,803 INFO L225 Difference]: With dead ends: 45338 [2023-12-16 03:59:10,803 INFO L226 Difference]: Without dead ends: 43443 [2023-12-16 03:59:10,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1124 GetRequests, 743 SyntacticMatches, 0 SemanticMatches, 381 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64628 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=18669, Invalid=127637, Unknown=0, NotChecked=0, Total=146306 [2023-12-16 03:59:10,846 INFO L413 NwaCegarLoop]: 553 mSDtfsCounter, 7735 mSDsluCounter, 4404 mSDsCounter, 0 mSdLazyCounter, 6024 mSolverCounterSat, 2436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7743 SdHoareTripleChecker+Valid, 4957 SdHoareTripleChecker+Invalid, 8460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2436 IncrementalHoareTripleChecker+Valid, 6024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-16 03:59:10,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7743 Valid, 4957 Invalid, 8460 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2436 Valid, 6024 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-12-16 03:59:10,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43443 states. [2023-12-16 03:59:13,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43443 to 25708. [2023-12-16 03:59:13,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25708 states, 20304 states have (on average 1.348256501182033) internal successors, (27375), 20451 states have internal predecessors, (27375), 4326 states have call successors, (4326), 1077 states have call predecessors, (4326), 1077 states have return successors, (4326), 4179 states have call predecessors, (4326), 4326 states have call successors, (4326) [2023-12-16 03:59:13,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25708 states to 25708 states and 36027 transitions. [2023-12-16 03:59:13,616 INFO L78 Accepts]: Start accepts. Automaton has 25708 states and 36027 transitions. Word has length 338 [2023-12-16 03:59:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:59:13,617 INFO L495 AbstractCegarLoop]: Abstraction has 25708 states and 36027 transitions. [2023-12-16 03:59:13,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 5.142857142857143) internal successors, (180), 34 states have internal predecessors, (180), 10 states have call successors, (102), 6 states have call predecessors, (102), 12 states have return successors, (102), 10 states have call predecessors, (102), 10 states have call successors, (102) [2023-12-16 03:59:13,618 INFO L276 IsEmpty]: Start isEmpty. Operand 25708 states and 36027 transitions. [2023-12-16 03:59:13,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2023-12-16 03:59:13,624 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:59:13,624 INFO L195 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:13,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:13,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-16 03:59:13,828 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:59:13,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:59:13,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1628225596, now seen corresponding path program 1 times [2023-12-16 03:59:13,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:59:13,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770652411] [2023-12-16 03:59:13,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:13,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:59:13,862 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:59:13,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [289980220] [2023-12-16 03:59:13,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:59:13,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:59:13,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:59:13,864 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 03:59:13,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-16 03:59:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:59:14,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-16 03:59:14,221 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:59:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 1838 proven. 372 refuted. 0 times theorem prover too weak. 2890 trivial. 0 not checked. [2023-12-16 03:59:15,989 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 03:59:20,596 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:59:20,596 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 [2023-12-16 03:59:20,887 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:59:20,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-16 03:59:21,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-16 03:59:21,088 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 339 with TraceHistMax 51,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 20 known predicates. [2023-12-16 03:59:21,091 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:59:21,093 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:59:21,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:59:21 BoogieIcfgContainer [2023-12-16 03:59:21,096 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:59:21,096 INFO L158 Benchmark]: Toolchain (without parser) took 54595.07ms. Allocated memory was 280.0MB in the beginning and 1.1GB in the end (delta: 798.0MB). Free memory was 223.8MB in the beginning and 803.0MB in the end (delta: -579.2MB). Peak memory consumption was 220.3MB. Max. memory is 8.0GB. [2023-12-16 03:59:21,096 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:59:21,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.14ms. Allocated memory is still 280.0MB. Free memory was 223.3MB in the beginning and 198.6MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 03:59:21,097 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.50ms. Allocated memory is still 280.0MB. Free memory was 198.6MB in the beginning and 191.3MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-16 03:59:21,097 INFO L158 Benchmark]: Boogie Preprocessor took 126.71ms. Allocated memory is still 280.0MB. Free memory was 191.3MB in the beginning and 179.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-12-16 03:59:21,097 INFO L158 Benchmark]: RCFGBuilder took 930.08ms. Allocated memory is still 280.0MB. Free memory was 179.2MB in the beginning and 210.0MB in the end (delta: -30.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-16 03:59:21,098 INFO L158 Benchmark]: TraceAbstraction took 53008.05ms. Allocated memory was 280.0MB in the beginning and 1.1GB in the end (delta: 798.0MB). Free memory was 209.5MB in the beginning and 803.0MB in the end (delta: -593.5MB). Peak memory consumption was 205.5MB. Max. memory is 8.0GB. [2023-12-16 03:59:21,099 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 202.4MB. Free memory is still 147.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 428.14ms. Allocated memory is still 280.0MB. Free memory was 223.3MB in the beginning and 198.6MB in the end (delta: 24.6MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 96.50ms. Allocated memory is still 280.0MB. Free memory was 198.6MB in the beginning and 191.3MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 126.71ms. Allocated memory is still 280.0MB. Free memory was 191.3MB in the beginning and 179.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * RCFGBuilder took 930.08ms. Allocated memory is still 280.0MB. Free memory was 179.2MB in the beginning and 210.0MB in the end (delta: -30.8MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 53008.05ms. Allocated memory was 280.0MB in the beginning and 1.1GB in the end (delta: 798.0MB). Free memory was 209.5MB in the beginning and 803.0MB in the end (delta: -593.5MB). Peak memory consumption was 205.5MB. 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 339 with TraceHistMax 51,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 20 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.9s, OverallIterations: 12, TraceHistogramMax: 51, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 26.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11730 SdHoareTripleChecker+Valid, 9.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11681 mSDsluCounter, 15612 SdHoareTripleChecker+Invalid, 8.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11784 mSDsCounter, 3053 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9694 IncrementalHoareTripleChecker+Invalid, 12747 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3053 mSolverCounterUnsat, 3828 mSDtfsCounter, 9694 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5523 GetRequests, 5055 SyntacticMatches, 3 SemanticMatches, 465 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64795 ImplicationChecksByTransitivity, 13.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25708occurred in iteration=11, InterpolantAutomatonStates: 432, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 19932 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 4039 NumberOfCodeBlocks, 4039 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 5039 ConstructedInterpolants, 0 QuantifiedInterpolants, 21698 SizeOfPredicates, 48 NumberOfNonLiveVariables, 8763 ConjunctsInSsa, 115 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 75141/76500 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