/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 15:45:59,757 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 15:45:59,847 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 15:45:59,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 15:45:59,852 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 15:45:59,878 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 15:45:59,879 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 15:45:59,879 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 15:45:59,880 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 15:45:59,883 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 15:45:59,883 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 15:45:59,884 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 15:45:59,884 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 15:45:59,885 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 15:45:59,886 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 15:45:59,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 15:45:59,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 15:45:59,886 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 15:45:59,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 15:45:59,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 15:45:59,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 15:45:59,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 15:45:59,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 15:45:59,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 15:45:59,888 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 15:45:59,888 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 15:45:59,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 15:45:59,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 15:45:59,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 15:45:59,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 15:45:59,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 15:45:59,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 15:45:59,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:45:59,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 15:45:59,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 15:45:59,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 15:45:59,891 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 15:45:59,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 15:45:59,891 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 15:45:59,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 15:45:59,892 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 15:45:59,892 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 15:45:59,892 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 15:45:59,892 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 15:46:00,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 15:46:00,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 15:46:00,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 15:46:00,157 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 15:46:00,157 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 15:46:00,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2023-12-19 15:46:01,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 15:46:01,472 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 15:46:01,472 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i [2023-12-19 15:46:01,482 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee9b91e6/7246630fcb5e4796942f8bb2b8129ab7/FLAG8c34b61fc [2023-12-19 15:46:01,494 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ee9b91e6/7246630fcb5e4796942f8bb2b8129ab7 [2023-12-19 15:46:01,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 15:46:01,497 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 15:46:01,498 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 15:46:01,498 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 15:46:01,502 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 15:46:01,503 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,504 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b3e461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01, skipping insertion in model container [2023-12-19 15:46:01,504 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 15:46:01,665 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2023-12-19 15:46:01,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:46:01,723 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 15:46:01,733 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-31.i[916,929] [2023-12-19 15:46:01,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 15:46:01,795 INFO L206 MainTranslator]: Completed translation [2023-12-19 15:46:01,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01 WrapperNode [2023-12-19 15:46:01,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 15:46:01,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 15:46:01,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 15:46:01,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 15:46:01,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,901 INFO L138 Inliner]: procedures = 29, calls = 133, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 409 [2023-12-19 15:46:01,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 15:46:01,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 15:46:01,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 15:46:01,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 15:46:01,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,946 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,984 INFO L175 MemorySlicer]: Split 110 memory accesses to 2 slices as follows [2, 108]. 98 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10]. The 16 writes are split as follows [0, 16]. [2023-12-19 15:46:01,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:01,984 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:02,002 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:02,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:02,028 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:02,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:02,039 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 15:46:02,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 15:46:02,051 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 15:46:02,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 15:46:02,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (1/1) ... [2023-12-19 15:46:02,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 15:46:02,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:02,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 15:46:02,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 15:46:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 15:46:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-19 15:46:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-19 15:46:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-19 15:46:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-19 15:46:02,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-19 15:46:02,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-19 15:46:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-19 15:46:02,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 15:46:02,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 15:46:02,244 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 15:46:02,245 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 15:46:02,600 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 15:46:02,629 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 15:46:02,629 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-19 15:46:02,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:46:02 BoogieIcfgContainer [2023-12-19 15:46:02,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 15:46:02,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 15:46:02,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 15:46:02,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 15:46:02,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:46:01" (1/3) ... [2023-12-19 15:46:02,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72695ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:46:02, skipping insertion in model container [2023-12-19 15:46:02,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:46:01" (2/3) ... [2023-12-19 15:46:02,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72695ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:46:02, skipping insertion in model container [2023-12-19 15:46:02,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:46:02" (3/3) ... [2023-12-19 15:46:02,637 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-31.i [2023-12-19 15:46:02,651 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 15:46:02,651 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 15:46:02,696 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 15:46:02,702 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;@65497782, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 15:46:02,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 15:46:02,706 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 66 states have (on average 1.5) internal successors, (99), 67 states have internal predecessors, (99), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 15:46:02,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 15:46:02,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:02,715 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:02,716 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:02,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:02,720 INFO L85 PathProgramCache]: Analyzing trace with hash 61359214, now seen corresponding path program 1 times [2023-12-19 15:46:02,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:02,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544789003] [2023-12-19 15:46:02,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:02,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:02,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:02,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:02,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544789003] [2023-12-19 15:46:02,996 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-19 15:46:02,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164843808] [2023-12-19 15:46:02,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:02,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:02,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:03,004 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:03,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 15:46:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:03,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-19 15:46:03,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2023-12-19 15:46:03,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:03,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164843808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:03,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:03,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 15:46:03,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400681919] [2023-12-19 15:46:03,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:03,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 15:46:03,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:03,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 15:46:03,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:46:03,252 INFO L87 Difference]: Start difference. First operand has 80 states, 66 states have (on average 1.5) internal successors, (99), 67 states have internal predecessors, (99), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-19 15:46:03,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:03,287 INFO L93 Difference]: Finished difference Result 157 states and 251 transitions. [2023-12-19 15:46:03,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 15:46:03,289 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2023-12-19 15:46:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:03,295 INFO L225 Difference]: With dead ends: 157 [2023-12-19 15:46:03,295 INFO L226 Difference]: Without dead ends: 78 [2023-12-19 15:46:03,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 15:46:03,300 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:03,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:03,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-19 15:46:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-19 15:46:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 65 states have (on average 1.4461538461538461) internal successors, (94), 65 states have internal predecessors, (94), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 15:46:03,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 116 transitions. [2023-12-19 15:46:03,333 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 116 transitions. Word has length 89 [2023-12-19 15:46:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:03,334 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 116 transitions. [2023-12-19 15:46:03,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.5) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-19 15:46:03,334 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 116 transitions. [2023-12-19 15:46:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 15:46:03,337 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:03,337 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:03,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:03,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-19 15:46:03,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:03,545 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:03,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1228647616, now seen corresponding path program 1 times [2023-12-19 15:46:03,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:03,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936400356] [2023-12-19 15:46:03,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:03,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:03,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:03,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089734101] [2023-12-19 15:46:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:03,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:03,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:03,622 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:03,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 15:46:03,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:03,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-19 15:46:03,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-12-19 15:46:03,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:03,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936400356] [2023-12-19 15:46:03,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:03,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089734101] [2023-12-19 15:46:03,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089734101] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:03,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:03,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 15:46:03,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419226867] [2023-12-19 15:46:03,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:03,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 15:46:03,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:03,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 15:46:03,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 15:46:03,820 INFO L87 Difference]: Start difference. First operand 78 states and 116 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-19 15:46:03,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:03,882 INFO L93 Difference]: Finished difference Result 161 states and 240 transitions. [2023-12-19 15:46:03,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:46:03,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 89 [2023-12-19 15:46:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:03,885 INFO L225 Difference]: With dead ends: 161 [2023-12-19 15:46:03,885 INFO L226 Difference]: Without dead ends: 84 [2023-12-19 15:46:03,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:03,890 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 10 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:03,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 327 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:03,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-12-19 15:46:03,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2023-12-19 15:46:03,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 67 states have internal predecessors, (96), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 15:46:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 118 transitions. [2023-12-19 15:46:03,902 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 118 transitions. Word has length 89 [2023-12-19 15:46:03,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:03,902 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 118 transitions. [2023-12-19 15:46:03,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-19 15:46:03,903 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 118 transitions. [2023-12-19 15:46:03,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 15:46:03,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:03,904 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:03,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:04,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-19 15:46:04,105 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:04,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:04,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1143091646, now seen corresponding path program 1 times [2023-12-19 15:46:04,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:04,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513015253] [2023-12-19 15:46:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:04,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:04,158 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:04,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525424184] [2023-12-19 15:46:04,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:04,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:04,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:04,164 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:04,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 15:46:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:04,310 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 15:46:04,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:04,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-12-19 15:46:04,369 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:04,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:04,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513015253] [2023-12-19 15:46:04,370 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:04,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525424184] [2023-12-19 15:46:04,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525424184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:04,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:04,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:46:04,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669205812] [2023-12-19 15:46:04,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:04,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:46:04,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:04,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:46:04,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:46:04,372 INFO L87 Difference]: Start difference. First operand 80 states and 118 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:04,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:04,389 INFO L93 Difference]: Finished difference Result 159 states and 235 transitions. [2023-12-19 15:46:04,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:46:04,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2023-12-19 15:46:04,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:04,396 INFO L225 Difference]: With dead ends: 159 [2023-12-19 15:46:04,396 INFO L226 Difference]: Without dead ends: 80 [2023-12-19 15:46:04,396 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:46:04,397 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:04,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 218 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:04,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-12-19 15:46:04,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-12-19 15:46:04,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 15:46:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions. [2023-12-19 15:46:04,409 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 89 [2023-12-19 15:46:04,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:04,409 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 117 transitions. [2023-12-19 15:46:04,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions. [2023-12-19 15:46:04,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-19 15:46:04,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:04,411 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:04,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-19 15:46:04,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:04,619 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:04,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:04,620 INFO L85 PathProgramCache]: Analyzing trace with hash 122023292, now seen corresponding path program 1 times [2023-12-19 15:46:04,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:04,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014015160] [2023-12-19 15:46:04,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:04,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:04,662 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:04,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [668241454] [2023-12-19 15:46:04,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:04,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:04,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:04,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:04,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 15:46:04,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:04,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:46:04,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:04,866 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:04,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 32 [2023-12-19 15:46:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-19 15:46:04,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:46:04,998 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:04,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:04,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014015160] [2023-12-19 15:46:04,999 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:04,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668241454] [2023-12-19 15:46:04,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668241454] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:46:04,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:46:04,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2023-12-19 15:46:05,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727101057] [2023-12-19 15:46:05,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:05,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:05,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:05,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:05,002 INFO L87 Difference]: Start difference. First operand 80 states and 117 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:05,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:05,201 INFO L93 Difference]: Finished difference Result 221 states and 321 transitions. [2023-12-19 15:46:05,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:46:05,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 89 [2023-12-19 15:46:05,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:05,203 INFO L225 Difference]: With dead ends: 221 [2023-12-19 15:46:05,203 INFO L226 Difference]: Without dead ends: 142 [2023-12-19 15:46:05,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:46:05,204 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 120 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:05,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 379 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:46:05,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-19 15:46:05,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 119. [2023-12-19 15:46:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.4174757281553398) internal successors, (146), 104 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 15:46:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 172 transitions. [2023-12-19 15:46:05,215 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 172 transitions. Word has length 89 [2023-12-19 15:46:05,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:05,216 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 172 transitions. [2023-12-19 15:46:05,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:05,216 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 172 transitions. [2023-12-19 15:46:05,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 15:46:05,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:05,218 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:05,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:05,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:05,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:05,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:05,426 INFO L85 PathProgramCache]: Analyzing trace with hash -522860831, now seen corresponding path program 1 times [2023-12-19 15:46:05,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:05,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442314519] [2023-12-19 15:46:05,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:05,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:05,465 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:05,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [379894272] [2023-12-19 15:46:05,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:05,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:05,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:05,474 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:05,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-19 15:46:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:05,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 15:46:05,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:05,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-12-19 15:46:05,638 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:05,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:05,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:05,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442314519] [2023-12-19 15:46:05,639 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:05,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379894272] [2023-12-19 15:46:05,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379894272] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:05,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:05,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:46:05,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932150652] [2023-12-19 15:46:05,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:05,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:46:05,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:05,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:46:05,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:46:05,642 INFO L87 Difference]: Start difference. First operand 119 states and 172 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:05,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:05,659 INFO L93 Difference]: Finished difference Result 273 states and 397 transitions. [2023-12-19 15:46:05,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:46:05,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2023-12-19 15:46:05,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:05,662 INFO L225 Difference]: With dead ends: 273 [2023-12-19 15:46:05,662 INFO L226 Difference]: Without dead ends: 155 [2023-12-19 15:46:05,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:46:05,667 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 28 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:05,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 215 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:05,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-19 15:46:05,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 119. [2023-12-19 15:46:05,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.3980582524271845) internal successors, (144), 104 states have internal predecessors, (144), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 15:46:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 170 transitions. [2023-12-19 15:46:05,678 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 170 transitions. Word has length 91 [2023-12-19 15:46:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:05,678 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 170 transitions. [2023-12-19 15:46:05,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 170 transitions. [2023-12-19 15:46:05,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 15:46:05,680 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:05,680 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:05,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-19 15:46:05,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:05,887 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:05,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:05,888 INFO L85 PathProgramCache]: Analyzing trace with hash 157197539, now seen corresponding path program 1 times [2023-12-19 15:46:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:05,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209681495] [2023-12-19 15:46:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:05,915 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:05,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [798047679] [2023-12-19 15:46:05,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:05,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:05,918 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:05,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-19 15:46:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:06,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-19 15:46:06,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:06,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:06,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 32 [2023-12-19 15:46:06,122 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:06,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 35 [2023-12-19 15:46:06,135 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:06,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 48 [2023-12-19 15:46:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-19 15:46:06,213 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:46:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:06,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209681495] [2023-12-19 15:46:06,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:06,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798047679] [2023-12-19 15:46:06,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798047679] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:46:06,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:46:06,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 10 [2023-12-19 15:46:06,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581407344] [2023-12-19 15:46:06,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:06,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:06,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:06,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:06,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-19 15:46:06,319 INFO L87 Difference]: Start difference. First operand 119 states and 170 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:06,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:06,540 INFO L93 Difference]: Finished difference Result 282 states and 403 transitions. [2023-12-19 15:46:06,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:46:06,541 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2023-12-19 15:46:06,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:06,542 INFO L225 Difference]: With dead ends: 282 [2023-12-19 15:46:06,542 INFO L226 Difference]: Without dead ends: 164 [2023-12-19 15:46:06,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2023-12-19 15:46:06,543 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 136 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:06,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 367 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:46:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-19 15:46:06,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 94. [2023-12-19 15:46:06,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 78 states have (on average 1.358974358974359) internal successors, (106), 79 states have internal predecessors, (106), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 15:46:06,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2023-12-19 15:46:06,554 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 91 [2023-12-19 15:46:06,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:06,555 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2023-12-19 15:46:06,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:06,555 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2023-12-19 15:46:06,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 15:46:06,556 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:06,556 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:06,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:06,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:06,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:06,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:06,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1725263178, now seen corresponding path program 1 times [2023-12-19 15:46:06,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:06,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771958441] [2023-12-19 15:46:06,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:06,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:06,803 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:06,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1157573931] [2023-12-19 15:46:06,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:06,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:06,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:06,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:06,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-19 15:46:06,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:06,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-19 15:46:06,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:06,963 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:06,963 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:06,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771958441] [2023-12-19 15:46:06,964 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:06,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1157573931] [2023-12-19 15:46:06,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1157573931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:06,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:06,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 15:46:06,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777869389] [2023-12-19 15:46:06,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:06,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 15:46:06,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:06,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 15:46:06,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:46:06,966 INFO L87 Difference]: Start difference. First operand 94 states and 132 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:06,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:06,982 INFO L93 Difference]: Finished difference Result 184 states and 259 transitions. [2023-12-19 15:46:06,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 15:46:06,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2023-12-19 15:46:06,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:06,984 INFO L225 Difference]: With dead ends: 184 [2023-12-19 15:46:06,984 INFO L226 Difference]: Without dead ends: 95 [2023-12-19 15:46:06,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 15:46:06,985 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:06,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:06,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2023-12-19 15:46:06,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2023-12-19 15:46:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.3544303797468353) internal successors, (107), 80 states have internal predecessors, (107), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 15:46:07,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 133 transitions. [2023-12-19 15:46:07,000 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 133 transitions. Word has length 91 [2023-12-19 15:46:07,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:07,000 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 133 transitions. [2023-12-19 15:46:07,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 133 transitions. [2023-12-19 15:46:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-19 15:46:07,002 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:07,002 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:07,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:07,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:07,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:07,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1467097740, now seen corresponding path program 1 times [2023-12-19 15:46:07,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:07,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849386286] [2023-12-19 15:46:07,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:07,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:07,229 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:07,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819183394] [2023-12-19 15:46:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:07,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:07,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:07,230 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:07,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-19 15:46:07,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:07,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-19 15:46:07,382 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:07,403 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-12-19 15:46:07,411 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:07,411 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:07,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:07,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849386286] [2023-12-19 15:46:07,411 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:07,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819183394] [2023-12-19 15:46:07,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819183394] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:07,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:07,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:07,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933000932] [2023-12-19 15:46:07,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:07,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:07,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:07,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:07,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:07,413 INFO L87 Difference]: Start difference. First operand 95 states and 133 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:07,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:07,558 INFO L93 Difference]: Finished difference Result 237 states and 331 transitions. [2023-12-19 15:46:07,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:46:07,559 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 91 [2023-12-19 15:46:07,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:07,560 INFO L225 Difference]: With dead ends: 237 [2023-12-19 15:46:07,560 INFO L226 Difference]: Without dead ends: 147 [2023-12-19 15:46:07,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:07,561 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 80 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:07,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 405 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:46:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-12-19 15:46:07,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 95. [2023-12-19 15:46:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 80 states have internal predecessors, (106), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 15:46:07,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 132 transitions. [2023-12-19 15:46:07,567 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 132 transitions. Word has length 91 [2023-12-19 15:46:07,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:07,567 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 132 transitions. [2023-12-19 15:46:07,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:07,567 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 132 transitions. [2023-12-19 15:46:07,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-19 15:46:07,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:07,568 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:07,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:07,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-19 15:46:07,769 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:07,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:07,769 INFO L85 PathProgramCache]: Analyzing trace with hash -584223820, now seen corresponding path program 1 times [2023-12-19 15:46:07,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:07,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245585357] [2023-12-19 15:46:07,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:07,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:07,790 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:07,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513149408] [2023-12-19 15:46:07,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:07,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:07,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:07,792 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:07,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-19 15:46:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:07,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 15:46:07,970 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:07,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:07,984 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2023-12-19 15:46:08,025 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:08,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 47 treesize of output 19 [2023-12-19 15:46:08,037 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:08,038 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:08,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:08,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245585357] [2023-12-19 15:46:08,038 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:08,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513149408] [2023-12-19 15:46:08,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513149408] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:08,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:08,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:08,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515919237] [2023-12-19 15:46:08,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:08,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:08,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:08,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:08,044 INFO L87 Difference]: Start difference. First operand 95 states and 132 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:08,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:08,206 INFO L93 Difference]: Finished difference Result 210 states and 290 transitions. [2023-12-19 15:46:08,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 15:46:08,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 92 [2023-12-19 15:46:08,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:08,209 INFO L225 Difference]: With dead ends: 210 [2023-12-19 15:46:08,209 INFO L226 Difference]: Without dead ends: 120 [2023-12-19 15:46:08,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:08,210 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 66 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:08,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 317 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:46:08,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-19 15:46:08,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 95. [2023-12-19 15:46:08,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 79 states have (on average 1.3291139240506329) internal successors, (105), 80 states have internal predecessors, (105), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 15:46:08,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 131 transitions. [2023-12-19 15:46:08,215 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 131 transitions. Word has length 92 [2023-12-19 15:46:08,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:08,216 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 131 transitions. [2023-12-19 15:46:08,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:08,216 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 131 transitions. [2023-12-19 15:46:08,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-19 15:46:08,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:08,217 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:08,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:08,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:08,424 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:08,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:08,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1474188056, now seen corresponding path program 1 times [2023-12-19 15:46:08,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:08,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514309171] [2023-12-19 15:46:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:08,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:08,450 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:08,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [791883740] [2023-12-19 15:46:08,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:08,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:08,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:08,452 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:08,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-19 15:46:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:08,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-19 15:46:08,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:08,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 19 [2023-12-19 15:46:08,655 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:08,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2023-12-19 15:46:08,666 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:08,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2023-12-19 15:46:08,676 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:08,677 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 44 [2023-12-19 15:46:08,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:08,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 89 treesize of output 37 [2023-12-19 15:46:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-12-19 15:46:08,764 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 15:46:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:08,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:08,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514309171] [2023-12-19 15:46:08,853 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:08,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [791883740] [2023-12-19 15:46:08,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [791883740] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-19 15:46:08,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 15:46:08,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2023-12-19 15:46:08,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771669105] [2023-12-19 15:46:08,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:08,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:08,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:08,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:08,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:46:08,855 INFO L87 Difference]: Start difference. First operand 95 states and 131 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:09,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:09,121 INFO L93 Difference]: Finished difference Result 270 states and 370 transitions. [2023-12-19 15:46:09,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 15:46:09,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 93 [2023-12-19 15:46:09,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:09,123 INFO L225 Difference]: With dead ends: 270 [2023-12-19 15:46:09,123 INFO L226 Difference]: Without dead ends: 180 [2023-12-19 15:46:09,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2023-12-19 15:46:09,124 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 155 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:09,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 420 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:46:09,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-12-19 15:46:09,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 169. [2023-12-19 15:46:09,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 143 states have (on average 1.3216783216783217) internal successors, (189), 145 states have internal predecessors, (189), 21 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (21), 19 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-19 15:46:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2023-12-19 15:46:09,134 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 93 [2023-12-19 15:46:09,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:09,134 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2023-12-19 15:46:09,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:09,134 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2023-12-19 15:46:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 15:46:09,135 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:09,135 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:09,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:09,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-19 15:46:09,343 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:09,343 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:09,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1335615676, now seen corresponding path program 1 times [2023-12-19 15:46:09,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:09,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233667115] [2023-12-19 15:46:09,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:09,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:09,363 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:09,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869907781] [2023-12-19 15:46:09,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:09,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:09,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:09,364 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:09,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-19 15:46:09,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:09,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 15:46:09,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:09,562 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:09,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233667115] [2023-12-19 15:46:09,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:09,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869907781] [2023-12-19 15:46:09,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869907781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:09,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:09,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:09,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064396892] [2023-12-19 15:46:09,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:09,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:09,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:09,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:09,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:09,564 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:09,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:09,768 INFO L93 Difference]: Finished difference Result 489 states and 662 transitions. [2023-12-19 15:46:09,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:46:09,768 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2023-12-19 15:46:09,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:09,770 INFO L225 Difference]: With dead ends: 489 [2023-12-19 15:46:09,770 INFO L226 Difference]: Without dead ends: 325 [2023-12-19 15:46:09,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:46:09,771 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 120 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:09,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 350 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 15:46:09,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2023-12-19 15:46:09,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 268. [2023-12-19 15:46:09,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 230 states have (on average 1.2956521739130435) internal successors, (298), 234 states have internal predecessors, (298), 29 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-19 15:46:09,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 356 transitions. [2023-12-19 15:46:09,785 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 356 transitions. Word has length 94 [2023-12-19 15:46:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:09,785 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 356 transitions. [2023-12-19 15:46:09,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:09,786 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 356 transitions. [2023-12-19 15:46:09,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 15:46:09,787 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:09,787 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:09,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:09,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 15:46:09,994 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:09,994 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:09,994 INFO L85 PathProgramCache]: Analyzing trace with hash -2000121604, now seen corresponding path program 1 times [2023-12-19 15:46:09,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:09,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039851120] [2023-12-19 15:46:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:09,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:10,011 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:10,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [865276419] [2023-12-19 15:46:10,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:10,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:10,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:10,013 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:10,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-19 15:46:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:10,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 15:46:10,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:10,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:10,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:10,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039851120] [2023-12-19 15:46:10,205 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:10,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [865276419] [2023-12-19 15:46:10,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [865276419] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:10,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:10,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:10,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369878242] [2023-12-19 15:46:10,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:10,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:10,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:10,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:10,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:10,207 INFO L87 Difference]: Start difference. First operand 268 states and 356 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:10,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:10,250 INFO L93 Difference]: Finished difference Result 576 states and 766 transitions. [2023-12-19 15:46:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:46:10,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2023-12-19 15:46:10,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:10,252 INFO L225 Difference]: With dead ends: 576 [2023-12-19 15:46:10,253 INFO L226 Difference]: Without dead ends: 313 [2023-12-19 15:46:10,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 15:46:10,254 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 60 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:10,254 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 474 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:10,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2023-12-19 15:46:10,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 266. [2023-12-19 15:46:10,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 228 states have (on average 1.280701754385965) internal successors, (292), 232 states have internal predecessors, (292), 29 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-19 15:46:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 350 transitions. [2023-12-19 15:46:10,267 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 350 transitions. Word has length 94 [2023-12-19 15:46:10,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:10,267 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 350 transitions. [2023-12-19 15:46:10,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:10,268 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 350 transitions. [2023-12-19 15:46:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 15:46:10,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:10,269 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:10,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-12-19 15:46:10,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-19 15:46:10,477 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:10,477 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:10,477 INFO L85 PathProgramCache]: Analyzing trace with hash -658419588, now seen corresponding path program 1 times [2023-12-19 15:46:10,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:10,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868862676] [2023-12-19 15:46:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:10,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:10,496 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:10,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992320602] [2023-12-19 15:46:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:10,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:10,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:10,497 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:10,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-19 15:46:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:10,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-19 15:46:10,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:10,695 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2023-12-19 15:46:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:10,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:10,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:10,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868862676] [2023-12-19 15:46:10,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:10,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992320602] [2023-12-19 15:46:10,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992320602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:10,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:10,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:10,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137387083] [2023-12-19 15:46:10,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:10,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:10,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:10,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:10,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:10,720 INFO L87 Difference]: Start difference. First operand 266 states and 350 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:10,905 INFO L93 Difference]: Finished difference Result 663 states and 870 transitions. [2023-12-19 15:46:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-19 15:46:10,905 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2023-12-19 15:46:10,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:10,909 INFO L225 Difference]: With dead ends: 663 [2023-12-19 15:46:10,909 INFO L226 Difference]: Without dead ends: 402 [2023-12-19 15:46:10,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2023-12-19 15:46:10,910 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 106 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:10,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 617 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:46:10,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2023-12-19 15:46:10,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 274. [2023-12-19 15:46:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 236 states have (on average 1.2881355932203389) internal successors, (304), 240 states have internal predecessors, (304), 29 states have call successors, (29), 8 states have call predecessors, (29), 8 states have return successors, (29), 25 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-19 15:46:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 362 transitions. [2023-12-19 15:46:10,929 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 362 transitions. Word has length 94 [2023-12-19 15:46:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:10,929 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 362 transitions. [2023-12-19 15:46:10,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:10,929 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 362 transitions. [2023-12-19 15:46:10,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 15:46:10,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:10,930 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:10,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:11,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-19 15:46:11,139 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:11,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:11,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1938283266, now seen corresponding path program 1 times [2023-12-19 15:46:11,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:11,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543941900] [2023-12-19 15:46:11,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:11,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:11,157 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:11,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [346682460] [2023-12-19 15:46:11,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:11,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:11,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:11,159 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:11,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-19 15:46:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:11,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-19 15:46:11,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:11,394 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:11,395 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 27 [2023-12-19 15:46:11,402 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:11,402 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:11,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:11,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543941900] [2023-12-19 15:46:11,403 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:11,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346682460] [2023-12-19 15:46:11,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346682460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:11,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:11,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 15:46:11,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334495195] [2023-12-19 15:46:11,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:11,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 15:46:11,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:11,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 15:46:11,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-19 15:46:11,406 INFO L87 Difference]: Start difference. First operand 274 states and 362 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:11,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:11,572 INFO L93 Difference]: Finished difference Result 662 states and 866 transitions. [2023-12-19 15:46:11,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 15:46:11,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2023-12-19 15:46:11,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:11,575 INFO L225 Difference]: With dead ends: 662 [2023-12-19 15:46:11,575 INFO L226 Difference]: Without dead ends: 393 [2023-12-19 15:46:11,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:11,576 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 119 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:11,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 327 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 15:46:11,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2023-12-19 15:46:11,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 258. [2023-12-19 15:46:11,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 222 states have (on average 1.2792792792792793) internal successors, (284), 225 states have internal predecessors, (284), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 15:46:11,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 338 transitions. [2023-12-19 15:46:11,596 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 338 transitions. Word has length 94 [2023-12-19 15:46:11,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:11,599 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 338 transitions. [2023-12-19 15:46:11,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 338 transitions. [2023-12-19 15:46:11,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-19 15:46:11,600 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:11,600 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:11,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:11,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:11,808 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:11,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash -635167137, now seen corresponding path program 1 times [2023-12-19 15:46:11,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:11,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752556324] [2023-12-19 15:46:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:11,835 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:11,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [163637775] [2023-12-19 15:46:11,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:11,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:11,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:11,836 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:11,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-19 15:46:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:12,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-19 15:46:12,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:12,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-12-19 15:46:12,069 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:46:12,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-12-19 15:46:12,099 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:12,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2023-12-19 15:46:12,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:12,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 24 [2023-12-19 15:46:12,118 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:12,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 46 [2023-12-19 15:46:12,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-19 15:46:12,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 27 [2023-12-19 15:46:12,189 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:12,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:12,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:12,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752556324] [2023-12-19 15:46:12,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:12,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163637775] [2023-12-19 15:46:12,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163637775] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:12,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:12,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:12,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398621104] [2023-12-19 15:46:12,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:12,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:12,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:12,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:12,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:12,191 INFO L87 Difference]: Start difference. First operand 258 states and 338 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:12,500 INFO L93 Difference]: Finished difference Result 663 states and 875 transitions. [2023-12-19 15:46:12,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 15:46:12,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 94 [2023-12-19 15:46:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:12,502 INFO L225 Difference]: With dead ends: 663 [2023-12-19 15:46:12,503 INFO L226 Difference]: Without dead ends: 406 [2023-12-19 15:46:12,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-19 15:46:12,504 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 99 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:12,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 481 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 15:46:12,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-12-19 15:46:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 300. [2023-12-19 15:46:12,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 264 states have (on average 1.2651515151515151) internal successors, (334), 267 states have internal predecessors, (334), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 15:46:12,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 388 transitions. [2023-12-19 15:46:12,517 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 388 transitions. Word has length 94 [2023-12-19 15:46:12,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:12,518 INFO L495 AbstractCegarLoop]: Abstraction has 300 states and 388 transitions. [2023-12-19 15:46:12,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:12,518 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 388 transitions. [2023-12-19 15:46:12,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-19 15:46:12,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:12,519 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:12,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:12,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-19 15:46:12,726 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:12,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1024187466, now seen corresponding path program 1 times [2023-12-19 15:46:12,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:12,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473023590] [2023-12-19 15:46:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:12,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:12,748 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:12,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1139550502] [2023-12-19 15:46:12,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:12,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:12,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:12,750 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:12,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-19 15:46:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 15:46:12,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-19 15:46:12,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 15:46:12,939 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-12-19 15:46:12,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 15:46:12,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 15:46:12,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473023590] [2023-12-19 15:46:12,939 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-19 15:46:12,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139550502] [2023-12-19 15:46:12,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139550502] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 15:46:12,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 15:46:12,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 15:46:12,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904607120] [2023-12-19 15:46:12,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 15:46:12,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 15:46:12,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 15:46:12,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 15:46:12,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 15:46:12,941 INFO L87 Difference]: Start difference. First operand 300 states and 388 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:13,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 15:46:13,025 INFO L93 Difference]: Finished difference Result 647 states and 843 transitions. [2023-12-19 15:46:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 15:46:13,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 95 [2023-12-19 15:46:13,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 15:46:13,027 INFO L225 Difference]: With dead ends: 647 [2023-12-19 15:46:13,027 INFO L226 Difference]: Without dead ends: 348 [2023-12-19 15:46:13,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-19 15:46:13,028 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 61 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 15:46:13,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 513 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 15:46:13,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2023-12-19 15:46:13,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 310. [2023-12-19 15:46:13,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 274 states have (on average 1.2554744525547445) internal successors, (344), 277 states have internal predecessors, (344), 27 states have call successors, (27), 8 states have call predecessors, (27), 8 states have return successors, (27), 24 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-19 15:46:13,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 398 transitions. [2023-12-19 15:46:13,040 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 398 transitions. Word has length 95 [2023-12-19 15:46:13,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 15:46:13,041 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 398 transitions. [2023-12-19 15:46:13,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2023-12-19 15:46:13,041 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 398 transitions. [2023-12-19 15:46:13,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-19 15:46:13,042 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 15:46:13,042 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:13,055 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:13,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-19 15:46:13,250 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 15:46:13,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 15:46:13,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1522054829, now seen corresponding path program 1 times [2023-12-19 15:46:13,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 15:46:13,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779433987] [2023-12-19 15:46:13,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:13,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 15:46:13,273 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-19 15:46:13,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1186681282] [2023-12-19 15:46:13,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 15:46:13,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 15:46:13,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 15:46:13,275 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 15:46:13,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-12-19 15:46:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:46:13,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-19 15:46:13,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-19 15:46:13,784 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-19 15:46:13,785 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-19 15:46:13,785 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 15:46:13,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-12-19 15:46:13,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-12-19 15:46:14,000 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 15:46:14,004 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 15:46:14,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:46:14 BoogieIcfgContainer [2023-12-19 15:46:14,074 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 15:46:14,075 INFO L158 Benchmark]: Toolchain (without parser) took 12578.11ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 183.4MB in the beginning and 218.3MB in the end (delta: -34.9MB). Peak memory consumption was 13.7MB. Max. memory is 8.0GB. [2023-12-19 15:46:14,075 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 192.9MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:46:14,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.77ms. Allocated memory is still 231.7MB. Free memory was 183.2MB in the beginning and 168.1MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-19 15:46:14,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.66ms. Allocated memory is still 231.7MB. Free memory was 168.1MB in the beginning and 164.5MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 15:46:14,076 INFO L158 Benchmark]: Boogie Preprocessor took 135.53ms. Allocated memory is still 231.7MB. Free memory was 164.5MB in the beginning and 160.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-19 15:46:14,076 INFO L158 Benchmark]: RCFGBuilder took 578.67ms. Allocated memory is still 231.7MB. Free memory was 160.3MB in the beginning and 130.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. [2023-12-19 15:46:14,076 INFO L158 Benchmark]: TraceAbstraction took 11442.81ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 130.3MB in the beginning and 218.3MB in the end (delta: -88.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 15:46:14,077 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 192.9MB. Free memory is still 147.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 297.77ms. Allocated memory is still 231.7MB. Free memory was 183.2MB in the beginning and 168.1MB in the end (delta: 15.1MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 106.66ms. Allocated memory is still 231.7MB. Free memory was 168.1MB in the beginning and 164.5MB in the end (delta: 3.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 135.53ms. Allocated memory is still 231.7MB. Free memory was 164.5MB in the beginning and 160.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 578.67ms. Allocated memory is still 231.7MB. Free memory was 160.3MB in the beginning and 130.9MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 8.0GB. * TraceAbstraction took 11442.81ms. Allocated memory was 231.7MB in the beginning and 278.9MB in the end (delta: 47.2MB). Free memory was 130.3MB in the beginning and 218.3MB in the end (delta: -88.0MB). There was no memory consumed. 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 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 111. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { 200, 0, 1107940323, 0, 4, -32, 64, 4, 0.97, 32.6 }; [L47] signed long int last_1_WrapperStruct00_var_1_7 = 4; [L48] double last_1_WrapperStruct00_var_1_13 = 0.97; [L115] isInitial = 1 [L116] FCALL initially() [L117] COND TRUE 1 [L118] CALL updateLastVariables() [L107] EXPR WrapperStruct00.var_1_7 [L107] last_1_WrapperStruct00_var_1_7 = WrapperStruct00.var_1_7 [L108] EXPR WrapperStruct00.var_1_13 [L108] last_1_WrapperStruct00_var_1_13 = WrapperStruct00.var_1_13 [L118] RET updateLastVariables() [L119] CALL updateVariables() [L88] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L89] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L90] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L91] WrapperStruct00.var_1_3 = __VERIFIER_nondet_long() [L92] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 1073741822) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L93] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 2147483646) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L94] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L95] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L97] WrapperStruct00.var_1_8 = __VERIFIER_nondet_long() [L98] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= -1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L100] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L101] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L102] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 254) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L103] WrapperStruct00.var_1_14 = __VERIFIER_nondet_double() [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] EXPR WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F [L104] EXPR WrapperStruct00.var_1_14 [L104] EXPR WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] EXPR (WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] CALL assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, cond=1, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L104] RET assume_abort_if_not((WrapperStruct00.var_1_14 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_14 <= -1.0e-20F) || (WrapperStruct00.var_1_14 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_14 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L119] RET updateVariables() [L120] CALL step() [L52] EXPR WrapperStruct00.var_1_3 [L52] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L52] COND FALSE !(! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) [L59] EXPR WrapperStruct00.var_1_12 [L59] WrapperStruct00.var_1_9 = WrapperStruct00.var_1_12 [L61] EXPR WrapperStruct00.var_1_9 [L61] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L61] COND FALSE !(WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) [L64] EXPR WrapperStruct00.var_1_9 [L64] EXPR WrapperStruct00.var_1_3 [L64] WrapperStruct00.var_1_7 = (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3) [L66] EXPR WrapperStruct00.var_1_9 [L66] EXPR WrapperStruct00.var_1_3 [L66] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L66] COND FALSE !((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) [L77] EXPR WrapperStruct00.var_1_14 [L77] WrapperStruct00.var_1_13 = WrapperStruct00.var_1_14 [L79] WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L79] COND TRUE WrapperStruct00.var_1_2 [L80] EXPR WrapperStruct00.var_1_3 [L80] EXPR WrapperStruct00.var_1_9 [L80] EXPR WrapperStruct00.var_1_9 [L80] WrapperStruct00.var_1_1 = ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9) [L120] RET step() [L121] CALL, EXPR property() [L111] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) [L111] EXPR WrapperStruct00.var_1_1 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) [L111] EXPR WrapperStruct00.var_1_7 [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR (WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_12 [L111] EXPR (! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR ((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) [L111] EXPR WrapperStruct00.var_1_9 [L111] EXPR WrapperStruct00.var_1_3 [L111] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) [L111] EXPR WrapperStruct00.var_1_13 [L111] EXPR WrapperStruct00.var_1_14 [L111] EXPR ((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111] EXPR (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L111-L112] return (((WrapperStruct00.var_1_2 ? (WrapperStruct00.var_1_1 == ((signed long int) ((WrapperStruct00.var_1_3 - WrapperStruct00.var_1_9) - WrapperStruct00.var_1_9))) : ((WrapperStruct00.var_1_6 && (WrapperStruct00.var_1_3 < WrapperStruct00.var_1_9)) ? (WrapperStruct00.var_1_1 == ((signed long int) WrapperStruct00.var_1_3)) : 1)) && ((WrapperStruct00.var_1_9 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 + WrapperStruct00.var_1_9))) : (WrapperStruct00.var_1_7 == ((signed long int) (WrapperStruct00.var_1_9 - WrapperStruct00.var_1_3))))) && ((! (WrapperStruct00.var_1_3 < (WrapperStruct00.var_1_8 * last_1_WrapperStruct00_var_1_7))) ? ((((((last_1_WrapperStruct00_var_1_13) < 0 ) ? -(last_1_WrapperStruct00_var_1_13) : (last_1_WrapperStruct00_var_1_13))) < last_1_WrapperStruct00_var_1_13) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)) : 1) : 1) : (WrapperStruct00.var_1_9 == ((unsigned char) WrapperStruct00.var_1_12)))) && (((WrapperStruct00.var_1_9 + WrapperStruct00.var_1_3) < WrapperStruct00.var_1_9) ? ((WrapperStruct00.var_1_2 && WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_6 ? (WrapperStruct00.var_1_13 == ((double) 0.8)) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_13 == ((double) WrapperStruct00.var_1_14))) ; [L121] RET, EXPR property() [L121] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_13=97/100, last_1_WrapperStruct00_var_1_7=4] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 17, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1161 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1160 mSDsluCounter, 5735 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3842 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1862 IncrementalHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 1893 mSDtfsCounter, 1862 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1753 GetRequests, 1669 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=310occurred in iteration=16, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 732 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1654 NumberOfCodeBlocks, 1654 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1724 ConstructedInterpolants, 0 QuantifiedInterpolants, 3972 SizeOfPredicates, 78 NumberOfNonLiveVariables, 5280 ConjunctsInSsa, 167 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 4090/4180 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: unable to determine feasibility of some traces [2023-12-19 15:46:14,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...