/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:13:17,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:13:17,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:13:17,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:13:17,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:13:17,283 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:13:17,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:13:17,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:13:17,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:13:17,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:13:17,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:13:17,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:13:17,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:13:17,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:13:17,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:13:17,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:13:17,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:13:17,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:13:17,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:13:17,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:13:17,319 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:13:17,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:13:17,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:13:17,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:13:17,337 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 11:13:17,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 11:13:17,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 11:13:17,342 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 11:13:17,342 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 11:13:17,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 11:13:17,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:13:17,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:13:17,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:13:17,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:13:17,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:13:17,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:13:17,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:13:17,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:13:17,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:13:17,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:13:17,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:13:17,360 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:13:17,427 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:13:17,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:13:17,428 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:13:17,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:13:17,430 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:13:17,430 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:13:17,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:13:17,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:13:17,434 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:13:17,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:13:17,435 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:13:17,436 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:13:17,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:13:17,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:13:17,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:13:17,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:13:17,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:13:17,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:13:17,437 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:13:17,437 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:13:17,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:13:17,438 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:13:17,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:13:17,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:13:17,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:13:17,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:13:17,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:13:17,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:13:17,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:13:17,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:13:17,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:13:17,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:13:17,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:13:17,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:13:17,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:13:17,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:13:17,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:13:17,909 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:13:17,910 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:13:17,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c [2022-10-16 11:13:18,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f38193/f26af702edbd4fa2b13a6547e2d9a18c/FLAG943bd602a [2022-10-16 11:13:18,629 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:13:18,630 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c [2022-10-16 11:13:18,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f38193/f26af702edbd4fa2b13a6547e2d9a18c/FLAG943bd602a [2022-10-16 11:13:18,654 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5f38193/f26af702edbd4fa2b13a6547e2d9a18c [2022-10-16 11:13:18,657 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:13:18,664 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:13:18,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:13:18,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:13:18,670 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:13:18,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:13:18" (1/1) ... [2022-10-16 11:13:18,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f66d61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:18, skipping insertion in model container [2022-10-16 11:13:18,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:13:18" (1/1) ... [2022-10-16 11:13:18,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:13:18,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:13:18,870 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c[333,346] [2022-10-16 11:13:18,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:13:18,930 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:13:18,951 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-multidimensional/init-non-constant-3-u.c[333,346] [2022-10-16 11:13:18,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:13:19,004 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:13:19,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19 WrapperNode [2022-10-16 11:13:19,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:13:19,006 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:13:19,006 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:13:19,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:13:19,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,070 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2022-10-16 11:13:19,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:13:19,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:13:19,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:13:19,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:13:19,082 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,117 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,123 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:13:19,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:13:19,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:13:19,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:13:19,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (1/1) ... [2022-10-16 11:13:19,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:13:19,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:19,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:13:19,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:13:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:13:19,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:13:19,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:13:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:13:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:13:19,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:13:19,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:13:19,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:13:19,354 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:13:19,356 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:13:19,631 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:13:19,639 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:13:19,640 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-16 11:13:19,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:13:19 BoogieIcfgContainer [2022-10-16 11:13:19,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:13:19,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:13:19,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:13:19,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:13:19,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:13:18" (1/3) ... [2022-10-16 11:13:19,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc75571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:13:19, skipping insertion in model container [2022-10-16 11:13:19,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:13:19" (2/3) ... [2022-10-16 11:13:19,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc75571 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:13:19, skipping insertion in model container [2022-10-16 11:13:19,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:13:19" (3/3) ... [2022-10-16 11:13:19,654 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-3-u.c [2022-10-16 11:13:19,680 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:13:19,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-10-16 11:13:19,777 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:13:19,787 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@38e7d949, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:13:19,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-10-16 11:13:19,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 35 states have (on average 1.9428571428571428) internal successors, (68), 55 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:19,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:13:19,815 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:19,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:13:19,817 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:19,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:19,833 INFO L85 PathProgramCache]: Analyzing trace with hash 28700906, now seen corresponding path program 1 times [2022-10-16 11:13:19,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:19,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919087094] [2022-10-16 11:13:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:19,972 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:19,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [509151482] [2022-10-16 11:13:19,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:19,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:19,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:19,976 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) [2022-10-16 11:13:19,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:13:20,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:20,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-16 11:13:20,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:20,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:20,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:20,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:20,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919087094] [2022-10-16 11:13:20,068 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:20,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509151482] [2022-10-16 11:13:20,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509151482] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:20,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:20,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:13:20,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515683082] [2022-10-16 11:13:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:20,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:13:20,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:20,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:13:20,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:13:20,121 INFO L87 Difference]: Start difference. First operand has 56 states, 35 states have (on average 1.9428571428571428) internal successors, (68), 55 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:20,159 INFO L93 Difference]: Finished difference Result 110 states and 134 transitions. [2022-10-16 11:13:20,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:13:20,162 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 11:13:20,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:20,172 INFO L225 Difference]: With dead ends: 110 [2022-10-16 11:13:20,172 INFO L226 Difference]: Without dead ends: 51 [2022-10-16 11:13:20,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:13:20,180 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:20,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:13:20,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-10-16 11:13:20,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2022-10-16 11:13:20,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 50 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:20,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2022-10-16 11:13:20,222 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 5 [2022-10-16 11:13:20,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:20,222 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2022-10-16 11:13:20,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:20,223 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2022-10-16 11:13:20,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 11:13:20,223 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:20,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 11:13:20,252 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:20,428 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 [2022-10-16 11:13:20,429 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:20,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:20,431 INFO L85 PathProgramCache]: Analyzing trace with hash 28699914, now seen corresponding path program 1 times [2022-10-16 11:13:20,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:20,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274617556] [2022-10-16 11:13:20,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:20,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:20,444 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:20,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859181133] [2022-10-16 11:13:20,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:20,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:20,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:20,447 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) [2022-10-16 11:13:20,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:13:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:20,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:13:20,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:20,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:20,534 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:20,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:20,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274617556] [2022-10-16 11:13:20,535 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:20,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859181133] [2022-10-16 11:13:20,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859181133] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:20,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:20,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:13:20,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397728879] [2022-10-16 11:13:20,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:20,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:13:20,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:20,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:13:20,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:20,539 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:20,666 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2022-10-16 11:13:20,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:13:20,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 11:13:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:20,671 INFO L225 Difference]: With dead ends: 98 [2022-10-16 11:13:20,674 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 11:13:20,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:20,678 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 47 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:20,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 56 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 11:13:20,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 77. [2022-10-16 11:13:20,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 57 states have (on average 1.8070175438596492) internal successors, (103), 76 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:20,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 103 transitions. [2022-10-16 11:13:20,698 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 103 transitions. Word has length 5 [2022-10-16 11:13:20,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:20,699 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 103 transitions. [2022-10-16 11:13:20,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:20,699 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 103 transitions. [2022-10-16 11:13:20,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:13:20,700 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:20,700 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:13:20,728 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:20,911 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 [2022-10-16 11:13:20,912 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:20,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:20,914 INFO L85 PathProgramCache]: Analyzing trace with hash 889697419, now seen corresponding path program 1 times [2022-10-16 11:13:20,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:20,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127258587] [2022-10-16 11:13:20,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:20,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:20,927 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:20,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [8059078] [2022-10-16 11:13:20,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:20,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:20,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:20,929 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) [2022-10-16 11:13:20,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:13:21,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:21,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:13:21,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:21,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:21,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:21,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:21,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127258587] [2022-10-16 11:13:21,035 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:21,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8059078] [2022-10-16 11:13:21,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8059078] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:21,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:21,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:13:21,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876612371] [2022-10-16 11:13:21,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:21,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:13:21,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:21,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:13:21,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:21,041 INFO L87 Difference]: Start difference. First operand 77 states and 103 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:21,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:21,109 INFO L93 Difference]: Finished difference Result 77 states and 103 transitions. [2022-10-16 11:13:21,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:13:21,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 11:13:21,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:21,113 INFO L225 Difference]: With dead ends: 77 [2022-10-16 11:13:21,117 INFO L226 Difference]: Without dead ends: 75 [2022-10-16 11:13:21,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:21,120 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 46 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:21,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 29 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:21,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-10-16 11:13:21,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-10-16 11:13:21,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 57 states have (on average 1.7719298245614035) internal successors, (101), 74 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:21,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2022-10-16 11:13:21,144 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 6 [2022-10-16 11:13:21,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:21,144 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2022-10-16 11:13:21,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:21,145 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2022-10-16 11:13:21,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:13:21,145 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:21,146 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:13:21,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:21,359 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 [2022-10-16 11:13:21,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:21,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:21,362 INFO L85 PathProgramCache]: Analyzing trace with hash 889698526, now seen corresponding path program 1 times [2022-10-16 11:13:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:21,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583997160] [2022-10-16 11:13:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:21,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:21,380 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:21,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [701776337] [2022-10-16 11:13:21,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:21,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:21,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:21,386 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) [2022-10-16 11:13:21,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:13:21,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:21,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:13:21,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:21,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:21,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:21,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583997160] [2022-10-16 11:13:21,448 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:21,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701776337] [2022-10-16 11:13:21,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701776337] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:21,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:21,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:13:21,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588905614] [2022-10-16 11:13:21,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:21,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:13:21,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:21,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:13:21,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:21,454 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:21,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:21,594 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2022-10-16 11:13:21,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:13:21,595 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 11:13:21,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:21,599 INFO L225 Difference]: With dead ends: 144 [2022-10-16 11:13:21,599 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 11:13:21,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:21,601 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 43 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:21,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 48 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 11:13:21,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 115. [2022-10-16 11:13:21,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.7835051546391754) internal successors, (173), 114 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:21,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 173 transitions. [2022-10-16 11:13:21,623 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 173 transitions. Word has length 6 [2022-10-16 11:13:21,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:21,623 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 173 transitions. [2022-10-16 11:13:21,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:21,624 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 173 transitions. [2022-10-16 11:13:21,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 11:13:21,624 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:21,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 11:13:21,666 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-16 11:13:21,838 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 [2022-10-16 11:13:21,839 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:21,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:21,840 INFO L85 PathProgramCache]: Analyzing trace with hash 889698573, now seen corresponding path program 1 times [2022-10-16 11:13:21,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:21,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818489632] [2022-10-16 11:13:21,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:21,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:21,865 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:21,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1302090081] [2022-10-16 11:13:21,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:21,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:21,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:21,868 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) [2022-10-16 11:13:21,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:13:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:21,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:13:21,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:21,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:21,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:21,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:21,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818489632] [2022-10-16 11:13:21,965 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:21,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302090081] [2022-10-16 11:13:21,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302090081] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:21,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:21,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:13:21,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404506414] [2022-10-16 11:13:21,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:21,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:13:21,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:21,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:13:21,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:21,969 INFO L87 Difference]: Start difference. First operand 115 states and 173 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:22,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:22,209 INFO L93 Difference]: Finished difference Result 152 states and 184 transitions. [2022-10-16 11:13:22,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:13:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 11:13:22,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:22,215 INFO L225 Difference]: With dead ends: 152 [2022-10-16 11:13:22,215 INFO L226 Difference]: Without dead ends: 150 [2022-10-16 11:13:22,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:22,221 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 81 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:22,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 75 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:13:22,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-10-16 11:13:22,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 115. [2022-10-16 11:13:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.7628865979381443) internal successors, (171), 114 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 171 transitions. [2022-10-16 11:13:22,259 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 171 transitions. Word has length 6 [2022-10-16 11:13:22,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:22,259 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 171 transitions. [2022-10-16 11:13:22,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 171 transitions. [2022-10-16 11:13:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 11:13:22,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:22,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:22,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:22,463 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 [2022-10-16 11:13:22,464 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:22,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:22,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1810850608, now seen corresponding path program 1 times [2022-10-16 11:13:22,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:22,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650836966] [2022-10-16 11:13:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:22,479 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:22,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [490757093] [2022-10-16 11:13:22,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:22,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:22,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:22,481 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) [2022-10-16 11:13:22,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:13:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:22,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:13:22,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:22,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:22,541 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:22,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:22,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650836966] [2022-10-16 11:13:22,542 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:22,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490757093] [2022-10-16 11:13:22,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490757093] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:22,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:22,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:13:22,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54138283] [2022-10-16 11:13:22,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:22,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:13:22,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:22,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:13:22,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:22,545 INFO L87 Difference]: Start difference. First operand 115 states and 171 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:22,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:22,592 INFO L93 Difference]: Finished difference Result 115 states and 171 transitions. [2022-10-16 11:13:22,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:13:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 11:13:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:22,594 INFO L225 Difference]: With dead ends: 115 [2022-10-16 11:13:22,594 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 11:13:22,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:13:22,596 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 42 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:22,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 26 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:13:22,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 11:13:22,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2022-10-16 11:13:22,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 97 states have (on average 1.7216494845360826) internal successors, (167), 112 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 167 transitions. [2022-10-16 11:13:22,613 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 167 transitions. Word has length 7 [2022-10-16 11:13:22,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:22,613 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 167 transitions. [2022-10-16 11:13:22,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:22,614 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 167 transitions. [2022-10-16 11:13:22,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 11:13:22,614 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:22,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:22,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:22,828 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 [2022-10-16 11:13:22,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:22,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:22,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1810852050, now seen corresponding path program 1 times [2022-10-16 11:13:22,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:22,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981001084] [2022-10-16 11:13:22,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:22,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:22,842 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:22,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [466558166] [2022-10-16 11:13:22,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:22,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:22,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:22,844 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) [2022-10-16 11:13:22,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:13:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:22,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:13:22,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:22,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:22,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:22,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:22,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981001084] [2022-10-16 11:13:22,935 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:22,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466558166] [2022-10-16 11:13:22,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466558166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:22,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:22,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:13:22,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694788553] [2022-10-16 11:13:22,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:22,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:13:22,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:13:22,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:22,939 INFO L87 Difference]: Start difference. First operand 113 states and 167 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:22,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:22,998 INFO L93 Difference]: Finished difference Result 113 states and 167 transitions. [2022-10-16 11:13:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:13:22,999 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-16 11:13:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:23,000 INFO L225 Difference]: With dead ends: 113 [2022-10-16 11:13:23,000 INFO L226 Difference]: Without dead ends: 111 [2022-10-16 11:13:23,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:23,002 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 41 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:23,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 18 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:13:23,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-10-16 11:13:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2022-10-16 11:13:23,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 97 states have (on average 1.6391752577319587) internal successors, (159), 110 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:23,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2022-10-16 11:13:23,059 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 7 [2022-10-16 11:13:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:23,060 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2022-10-16 11:13:23,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:23,060 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2022-10-16 11:13:23,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:13:23,061 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:23,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:23,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:23,274 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 [2022-10-16 11:13:23,275 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:23,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:23,276 INFO L85 PathProgramCache]: Analyzing trace with hash 301838767, now seen corresponding path program 1 times [2022-10-16 11:13:23,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:23,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995851611] [2022-10-16 11:13:23,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:23,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:23,287 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:23,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [124082382] [2022-10-16 11:13:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:23,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:23,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:23,289 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) [2022-10-16 11:13:23,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 11:13:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:23,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:13:23,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:23,409 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:23,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:23,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995851611] [2022-10-16 11:13:23,410 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:23,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124082382] [2022-10-16 11:13:23,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124082382] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:23,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:23,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:13:23,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726308243] [2022-10-16 11:13:23,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:23,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:13:23,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:23,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:13:23,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:13:23,413 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:23,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:23,595 INFO L93 Difference]: Finished difference Result 166 states and 198 transitions. [2022-10-16 11:13:23,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:13:23,596 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 11:13:23,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:23,597 INFO L225 Difference]: With dead ends: 166 [2022-10-16 11:13:23,597 INFO L226 Difference]: Without dead ends: 162 [2022-10-16 11:13:23,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:13:23,600 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 120 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:23,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 60 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:13:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-10-16 11:13:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 125. [2022-10-16 11:13:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 111 states have (on average 1.5945945945945945) internal successors, (177), 124 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 177 transitions. [2022-10-16 11:13:23,613 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 177 transitions. Word has length 8 [2022-10-16 11:13:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:23,613 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 177 transitions. [2022-10-16 11:13:23,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:23,614 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 177 transitions. [2022-10-16 11:13:23,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:13:23,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:23,615 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 11:13:23,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:23,828 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 [2022-10-16 11:13:23,829 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:23,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:23,830 INFO L85 PathProgramCache]: Analyzing trace with hash 732666785, now seen corresponding path program 1 times [2022-10-16 11:13:23,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:23,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390919300] [2022-10-16 11:13:23,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:23,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:23,842 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:23,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [626469495] [2022-10-16 11:13:23,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:23,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:23,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:23,845 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) [2022-10-16 11:13:23,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 11:13:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:23,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:13:23,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:23,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:13:23,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:23,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:23,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390919300] [2022-10-16 11:13:23,944 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:23,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626469495] [2022-10-16 11:13:23,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626469495] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:23,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:23,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:13:23,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530905880] [2022-10-16 11:13:23,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:23,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:13:23,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:23,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:13:23,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:23,947 INFO L87 Difference]: Start difference. First operand 125 states and 177 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:24,041 INFO L93 Difference]: Finished difference Result 237 states and 314 transitions. [2022-10-16 11:13:24,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:13:24,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:13:24,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:24,043 INFO L225 Difference]: With dead ends: 237 [2022-10-16 11:13:24,043 INFO L226 Difference]: Without dead ends: 140 [2022-10-16 11:13:24,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:24,045 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 79 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:24,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 45 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:24,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-10-16 11:13:24,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 125. [2022-10-16 11:13:24,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 111 states have (on average 1.5585585585585586) internal successors, (173), 124 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 173 transitions. [2022-10-16 11:13:24,056 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 173 transitions. Word has length 9 [2022-10-16 11:13:24,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:24,056 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 173 transitions. [2022-10-16 11:13:24,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,056 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 173 transitions. [2022-10-16 11:13:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:13:24,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:24,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:24,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:24,271 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 [2022-10-16 11:13:24,272 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:24,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:24,273 INFO L85 PathProgramCache]: Analyzing trace with hash 767067252, now seen corresponding path program 1 times [2022-10-16 11:13:24,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:24,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521362398] [2022-10-16 11:13:24,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:24,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:24,284 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760388213] [2022-10-16 11:13:24,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:24,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:24,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:24,286 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) [2022-10-16 11:13:24,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 11:13:24,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:24,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:13:24,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:24,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:24,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:24,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521362398] [2022-10-16 11:13:24,387 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:24,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760388213] [2022-10-16 11:13:24,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760388213] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:24,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:24,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:13:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634819249] [2022-10-16 11:13:24,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:24,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 11:13:24,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:24,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 11:13:24,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:13:24,389 INFO L87 Difference]: Start difference. First operand 125 states and 173 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:24,452 INFO L93 Difference]: Finished difference Result 125 states and 173 transitions. [2022-10-16 11:13:24,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:13:24,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 11:13:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:24,454 INFO L225 Difference]: With dead ends: 125 [2022-10-16 11:13:24,454 INFO L226 Difference]: Without dead ends: 121 [2022-10-16 11:13:24,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:13:24,455 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 62 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:24,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 7 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:24,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-10-16 11:13:24,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2022-10-16 11:13:24,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 111 states have (on average 1.3963963963963963) internal successors, (155), 120 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 155 transitions. [2022-10-16 11:13:24,466 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 155 transitions. Word has length 9 [2022-10-16 11:13:24,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:24,467 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 155 transitions. [2022-10-16 11:13:24,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,467 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 155 transitions. [2022-10-16 11:13:24,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 11:13:24,468 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:24,468 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:24,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:24,669 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 [2022-10-16 11:13:24,670 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:24,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:24,671 INFO L85 PathProgramCache]: Analyzing trace with hash -2033692235, now seen corresponding path program 1 times [2022-10-16 11:13:24,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:24,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749568984] [2022-10-16 11:13:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:24,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:24,684 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:24,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1480289265] [2022-10-16 11:13:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:24,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:24,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:24,686 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) [2022-10-16 11:13:24,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 11:13:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:24,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:13:24,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:24,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:13:24,748 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:13:24,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:24,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749568984] [2022-10-16 11:13:24,749 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:24,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480289265] [2022-10-16 11:13:24,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480289265] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:13:24,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:13:24,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:13:24,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081445680] [2022-10-16 11:13:24,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:13:24,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:13:24,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:24,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:13:24,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:24,752 INFO L87 Difference]: Start difference. First operand 121 states and 155 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:24,822 INFO L93 Difference]: Finished difference Result 280 states and 363 transitions. [2022-10-16 11:13:24,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:13:24,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 11:13:24,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:24,824 INFO L225 Difference]: With dead ends: 280 [2022-10-16 11:13:24,824 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 11:13:24,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:13:24,829 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 59 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:24,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 49 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:13:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 11:13:24,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 163. [2022-10-16 11:13:24,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 153 states have (on average 1.3529411764705883) internal successors, (207), 162 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 207 transitions. [2022-10-16 11:13:24,843 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 207 transitions. Word has length 10 [2022-10-16 11:13:24,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:24,843 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 207 transitions. [2022-10-16 11:13:24,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 207 transitions. [2022-10-16 11:13:24,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 11:13:24,848 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:24,848 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:24,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:25,064 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 [2022-10-16 11:13:25,065 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:25,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:25,066 INFO L85 PathProgramCache]: Analyzing trace with hash 744162266, now seen corresponding path program 1 times [2022-10-16 11:13:25,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:25,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244375511] [2022-10-16 11:13:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:25,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:25,076 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:25,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132779706] [2022-10-16 11:13:25,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:25,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:25,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:25,078 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) [2022-10-16 11:13:25,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 11:13:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:25,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:13:25,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:25,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:25,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:25,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:25,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244375511] [2022-10-16 11:13:25,298 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:25,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132779706] [2022-10-16 11:13:25,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132779706] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:25,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:25,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:13:25,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337697174] [2022-10-16 11:13:25,298 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:25,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:13:25,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:25,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:13:25,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:13:25,300 INFO L87 Difference]: Start difference. First operand 163 states and 207 transitions. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:25,862 INFO L93 Difference]: Finished difference Result 402 states and 488 transitions. [2022-10-16 11:13:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-16 11:13:25,863 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 11:13:25,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:25,865 INFO L225 Difference]: With dead ends: 402 [2022-10-16 11:13:25,865 INFO L226 Difference]: Without dead ends: 394 [2022-10-16 11:13:25,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2022-10-16 11:13:25,867 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 543 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:25,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 47 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:13:25,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2022-10-16 11:13:25,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 309. [2022-10-16 11:13:25,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 299 states have (on average 1.2976588628762542) internal successors, (388), 308 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:25,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 388 transitions. [2022-10-16 11:13:25,894 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 388 transitions. Word has length 15 [2022-10-16 11:13:25,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:25,894 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 388 transitions. [2022-10-16 11:13:25,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:25,895 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 388 transitions. [2022-10-16 11:13:25,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:13:25,897 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:25,897 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:25,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:26,111 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 [2022-10-16 11:13:26,112 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:26,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:26,113 INFO L85 PathProgramCache]: Analyzing trace with hash -802185401, now seen corresponding path program 1 times [2022-10-16 11:13:26,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:26,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350722912] [2022-10-16 11:13:26,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:26,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:26,124 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:26,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [835712973] [2022-10-16 11:13:26,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:26,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:26,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:26,126 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) [2022-10-16 11:13:26,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 11:13:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:26,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:13:26,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:26,220 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:13:26,220 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:13:26,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:26,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350722912] [2022-10-16 11:13:26,254 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:26,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835712973] [2022-10-16 11:13:26,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835712973] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:26,254 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:26,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-10-16 11:13:26,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063740542] [2022-10-16 11:13:26,255 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:26,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:13:26,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:26,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:13:26,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:13:26,256 INFO L87 Difference]: Start difference. First operand 309 states and 388 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:26,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:26,411 INFO L93 Difference]: Finished difference Result 825 states and 1063 transitions. [2022-10-16 11:13:26,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 11:13:26,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 11:13:26,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:26,415 INFO L225 Difference]: With dead ends: 825 [2022-10-16 11:13:26,416 INFO L226 Difference]: Without dead ends: 540 [2022-10-16 11:13:26,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:13:26,418 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 221 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:26,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 62 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2022-10-16 11:13:26,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 525. [2022-10-16 11:13:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 515 states have (on average 1.258252427184466) internal successors, (648), 524 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:26,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 648 transitions. [2022-10-16 11:13:26,461 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 648 transitions. Word has length 24 [2022-10-16 11:13:26,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:26,461 INFO L495 AbstractCegarLoop]: Abstraction has 525 states and 648 transitions. [2022-10-16 11:13:26,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:26,461 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 648 transitions. [2022-10-16 11:13:26,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:13:26,462 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:26,462 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 11:13:26,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:26,675 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 [2022-10-16 11:13:26,676 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:26,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:26,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1316908017, now seen corresponding path program 1 times [2022-10-16 11:13:26,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:26,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050257624] [2022-10-16 11:13:26,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:26,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:26,688 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:26,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1771255522] [2022-10-16 11:13:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:26,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:26,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:26,690 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) [2022-10-16 11:13:26,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:13:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:26,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:13:26,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:26,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:26,820 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:13:26,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:26,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050257624] [2022-10-16 11:13:26,820 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:26,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1771255522] [2022-10-16 11:13:26,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1771255522] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:26,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:26,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:13:26,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291729425] [2022-10-16 11:13:26,821 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:26,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:13:26,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:26,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:13:26,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:13:26,823 INFO L87 Difference]: Start difference. First operand 525 states and 648 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:27,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:27,017 INFO L93 Difference]: Finished difference Result 954 states and 1209 transitions. [2022-10-16 11:13:27,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 11:13:27,017 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 11:13:27,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:27,023 INFO L225 Difference]: With dead ends: 954 [2022-10-16 11:13:27,023 INFO L226 Difference]: Without dead ends: 952 [2022-10-16 11:13:27,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:13:27,024 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 146 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:27,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 143 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:27,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2022-10-16 11:13:27,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 833. [2022-10-16 11:13:27,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 833 states, 823 states have (on average 1.2515188335358445) internal successors, (1030), 832 states have internal predecessors, (1030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:27,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1030 transitions. [2022-10-16 11:13:27,084 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1030 transitions. Word has length 24 [2022-10-16 11:13:27,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:27,086 INFO L495 AbstractCegarLoop]: Abstraction has 833 states and 1030 transitions. [2022-10-16 11:13:27,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:27,087 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1030 transitions. [2022-10-16 11:13:27,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-10-16 11:13:27,090 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:27,091 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 11:13:27,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:27,304 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 [2022-10-16 11:13:27,304 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:27,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:27,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1389156559, now seen corresponding path program 2 times [2022-10-16 11:13:27,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:27,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246645090] [2022-10-16 11:13:27,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:27,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:27,322 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:27,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967978107] [2022-10-16 11:13:27,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:13:27,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:27,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:27,324 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) [2022-10-16 11:13:27,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:13:27,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:13:27,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:13:27,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 11:13:27,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:27,436 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-10-16 11:13:27,436 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2022-10-16 11:13:27,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:27,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246645090] [2022-10-16 11:13:27,504 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:27,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967978107] [2022-10-16 11:13:27,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967978107] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:27,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:27,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-16 11:13:27,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238650168] [2022-10-16 11:13:27,505 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:27,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:13:27,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:27,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:13:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 11:13:27,507 INFO L87 Difference]: Start difference. First operand 833 states and 1030 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:27,599 INFO L93 Difference]: Finished difference Result 834 states and 1031 transitions. [2022-10-16 11:13:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:13:27,600 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-10-16 11:13:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:27,605 INFO L225 Difference]: With dead ends: 834 [2022-10-16 11:13:27,605 INFO L226 Difference]: Without dead ends: 832 [2022-10-16 11:13:27,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:13:27,606 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 79 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:27,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 38 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:13:27,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2022-10-16 11:13:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 523. [2022-10-16 11:13:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 523 states, 515 states have (on average 1.203883495145631) internal successors, (620), 522 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 620 transitions. [2022-10-16 11:13:27,654 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 620 transitions. Word has length 52 [2022-10-16 11:13:27,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:27,654 INFO L495 AbstractCegarLoop]: Abstraction has 523 states and 620 transitions. [2022-10-16 11:13:27,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:27,655 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 620 transitions. [2022-10-16 11:13:27,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-16 11:13:27,655 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:27,656 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:27,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:27,870 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 [2022-10-16 11:13:27,870 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:27,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:27,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1556287130, now seen corresponding path program 1 times [2022-10-16 11:13:27,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:27,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935084733] [2022-10-16 11:13:27,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:27,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:27,884 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:27,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [967140208] [2022-10-16 11:13:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:27,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:27,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:27,886 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) [2022-10-16 11:13:27,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:13:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:27,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 11:13:27,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:28,101 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 46 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:13:28,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:28,190 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 76 proven. 46 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 11:13:28,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:28,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935084733] [2022-10-16 11:13:28,191 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:28,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967140208] [2022-10-16 11:13:28,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967140208] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:28,191 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:28,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-10-16 11:13:28,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171774189] [2022-10-16 11:13:28,191 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:28,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 11:13:28,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:28,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 11:13:28,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:13:28,193 INFO L87 Difference]: Start difference. First operand 523 states and 620 transitions. Second operand has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:28,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:28,566 INFO L93 Difference]: Finished difference Result 1722 states and 2082 transitions. [2022-10-16 11:13:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 11:13:28,567 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-10-16 11:13:28,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:28,573 INFO L225 Difference]: With dead ends: 1722 [2022-10-16 11:13:28,574 INFO L226 Difference]: Without dead ends: 1232 [2022-10-16 11:13:28,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=191, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:13:28,576 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 528 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:28,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 184 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:13:28,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2022-10-16 11:13:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1195. [2022-10-16 11:13:28,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 1187 states have (on average 1.18955349620893) internal successors, (1412), 1194 states have internal predecessors, (1412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:28,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1412 transitions. [2022-10-16 11:13:28,673 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1412 transitions. Word has length 54 [2022-10-16 11:13:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:28,674 INFO L495 AbstractCegarLoop]: Abstraction has 1195 states and 1412 transitions. [2022-10-16 11:13:28,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.428571428571429) internal successors, (76), 14 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:28,674 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1412 transitions. [2022-10-16 11:13:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-10-16 11:13:28,675 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:28,675 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:28,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:28,890 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 [2022-10-16 11:13:28,890 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:28,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:28,891 INFO L85 PathProgramCache]: Analyzing trace with hash -1937228218, now seen corresponding path program 2 times [2022-10-16 11:13:28,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:28,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470253598] [2022-10-16 11:13:28,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:28,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:28,909 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:28,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232274156] [2022-10-16 11:13:28,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:13:28,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:28,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:28,911 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) [2022-10-16 11:13:28,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:13:28,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:13:28,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:13:28,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:13:28,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:29,310 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 153 proven. 36 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-10-16 11:13:29,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:29,474 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 189 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-10-16 11:13:29,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:29,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470253598] [2022-10-16 11:13:29,475 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:29,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232274156] [2022-10-16 11:13:29,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232274156] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:29,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:29,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:13:29,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18822422] [2022-10-16 11:13:29,476 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:29,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:13:29,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:29,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:13:29,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:13:29,477 INFO L87 Difference]: Start difference. First operand 1195 states and 1412 transitions. Second operand has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:29,931 INFO L93 Difference]: Finished difference Result 1681 states and 1954 transitions. [2022-10-16 11:13:29,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:13:29,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-10-16 11:13:29,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:29,962 INFO L225 Difference]: With dead ends: 1681 [2022-10-16 11:13:29,962 INFO L226 Difference]: Without dead ends: 1675 [2022-10-16 11:13:29,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=113, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:13:29,964 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 134 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:29,964 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 37 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:13:29,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-10-16 11:13:30,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1337. [2022-10-16 11:13:30,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 1329 states have (on average 1.143717080511663) internal successors, (1520), 1336 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:30,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1520 transitions. [2022-10-16 11:13:30,094 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1520 transitions. Word has length 96 [2022-10-16 11:13:30,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:30,095 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1520 transitions. [2022-10-16 11:13:30,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.285714285714286) internal successors, (51), 8 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:30,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1520 transitions. [2022-10-16 11:13:30,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-16 11:13:30,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:30,097 INFO L195 NwaCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:30,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:30,311 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 [2022-10-16 11:13:30,312 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:30,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:30,312 INFO L85 PathProgramCache]: Analyzing trace with hash -97420348, now seen corresponding path program 1 times [2022-10-16 11:13:30,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:30,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825599674] [2022-10-16 11:13:30,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:30,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:30,336 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:30,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [144450874] [2022-10-16 11:13:30,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:30,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:30,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:30,337 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:13:30,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 11:13:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:30,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-16 11:13:30,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 746 proven. 325 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-10-16 11:13:30,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 1422 backedges. 746 proven. 325 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2022-10-16 11:13:31,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:31,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825599674] [2022-10-16 11:13:31,030 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:31,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144450874] [2022-10-16 11:13:31,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144450874] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:31,030 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:31,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2022-10-16 11:13:31,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162769010] [2022-10-16 11:13:31,031 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:31,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 11:13:31,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:31,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 11:13:31,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=347, Unknown=0, NotChecked=0, Total=650 [2022-10-16 11:13:31,033 INFO L87 Difference]: Start difference. First operand 1337 states and 1520 transitions. Second operand has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:32,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:32,018 INFO L93 Difference]: Finished difference Result 4251 states and 4904 transitions. [2022-10-16 11:13:32,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 11:13:32,018 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 158 [2022-10-16 11:13:32,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:32,031 INFO L225 Difference]: With dead ends: 4251 [2022-10-16 11:13:32,032 INFO L226 Difference]: Without dead ends: 2921 [2022-10-16 11:13:32,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=589, Invalid=743, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 11:13:32,035 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1163 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:32,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1163 Valid, 219 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:13:32,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2921 states. [2022-10-16 11:13:32,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2921 to 2837. [2022-10-16 11:13:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2837 states, 2829 states have (on average 1.1353835277483209) internal successors, (3212), 2836 states have internal predecessors, (3212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:32,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2837 states to 2837 states and 3212 transitions. [2022-10-16 11:13:32,297 INFO L78 Accepts]: Start accepts. Automaton has 2837 states and 3212 transitions. Word has length 158 [2022-10-16 11:13:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:32,297 INFO L495 AbstractCegarLoop]: Abstraction has 2837 states and 3212 transitions. [2022-10-16 11:13:32,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.346153846153846) internal successors, (165), 26 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 2837 states and 3212 transitions. [2022-10-16 11:13:32,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2022-10-16 11:13:32,303 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:32,303 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:32,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:32,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 11:13:32,516 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:32,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:32,517 INFO L85 PathProgramCache]: Analyzing trace with hash -190558396, now seen corresponding path program 2 times [2022-10-16 11:13:32,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:32,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129813063] [2022-10-16 11:13:32,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:32,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:32,568 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:32,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1811092187] [2022-10-16 11:13:32,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:13:32,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:32,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:32,570 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:13:32,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 11:13:32,678 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:13:32,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:13:32,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:13:32,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:33,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6810 backedges. 3439 proven. 90 refuted. 0 times theorem prover too weak. 3281 trivial. 0 not checked. [2022-10-16 11:13:33,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6810 backedges. 0 proven. 3529 refuted. 0 times theorem prover too weak. 3281 trivial. 0 not checked. [2022-10-16 11:13:33,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:33,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129813063] [2022-10-16 11:13:33,829 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:33,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811092187] [2022-10-16 11:13:33,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1811092187] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:33,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:33,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:13:33,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582504717] [2022-10-16 11:13:33,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:33,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:13:33,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:33,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:13:33,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:13:33,833 INFO L87 Difference]: Start difference. First operand 2837 states and 3212 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:34,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:34,055 INFO L93 Difference]: Finished difference Result 3245 states and 3712 transitions. [2022-10-16 11:13:34,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:13:34,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2022-10-16 11:13:34,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:34,066 INFO L225 Difference]: With dead ends: 3245 [2022-10-16 11:13:34,066 INFO L226 Difference]: Without dead ends: 2220 [2022-10-16 11:13:34,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 644 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:13:34,072 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 68 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:34,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 14 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:34,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2022-10-16 11:13:34,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1131. [2022-10-16 11:13:34,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 1129 states have (on average 1.070859167404783) internal successors, (1209), 1130 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:34,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1209 transitions. [2022-10-16 11:13:34,186 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1209 transitions. Word has length 326 [2022-10-16 11:13:34,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:34,187 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1209 transitions. [2022-10-16 11:13:34,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 8 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:34,187 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1209 transitions. [2022-10-16 11:13:34,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2022-10-16 11:13:34,193 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:34,193 INFO L195 NwaCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-10-16 11:13:34,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-10-16 11:13:34,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:34,407 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:34,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:34,408 INFO L85 PathProgramCache]: Analyzing trace with hash -703547217, now seen corresponding path program 1 times [2022-10-16 11:13:34,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:34,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029275424] [2022-10-16 11:13:34,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:34,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:34,462 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:34,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942890497] [2022-10-16 11:13:34,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:34,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:34,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:34,465 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:13:34,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 11:13:34,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:34,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 25 conjunts are in the unsatisfiable core [2022-10-16 11:13:34,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:35,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6906 backedges. 3528 proven. 1639 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2022-10-16 11:13:35,417 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:36,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6906 backedges. 3528 proven. 1639 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2022-10-16 11:13:36,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:36,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029275424] [2022-10-16 11:13:36,416 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:36,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942890497] [2022-10-16 11:13:36,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942890497] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:36,417 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:36,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2022-10-16 11:13:36,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807158666] [2022-10-16 11:13:36,417 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:36,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 11:13:36,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 11:13:36,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=1271, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 11:13:36,421 INFO L87 Difference]: Start difference. First operand 1131 states and 1209 transitions. Second operand has 50 states, 50 states have (on average 6.66) internal successors, (333), 50 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:39,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:39,066 INFO L93 Difference]: Finished difference Result 3500 states and 3782 transitions. [2022-10-16 11:13:39,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 11:13:39,067 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 6.66) internal successors, (333), 50 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2022-10-16 11:13:39,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:39,077 INFO L225 Difference]: With dead ends: 3500 [2022-10-16 11:13:39,077 INFO L226 Difference]: Without dead ends: 2373 [2022-10-16 11:13:39,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 685 GetRequests, 614 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=2329, Invalid=2927, Unknown=0, NotChecked=0, Total=5256 [2022-10-16 11:13:39,081 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2557 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:39,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2557 Valid, 334 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 590 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-16 11:13:39,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2022-10-16 11:13:39,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 2283. [2022-10-16 11:13:39,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2281 states have (on average 1.0666374397194214) internal successors, (2433), 2282 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:39,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 2433 transitions. [2022-10-16 11:13:39,302 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 2433 transitions. Word has length 332 [2022-10-16 11:13:39,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:39,302 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 2433 transitions. [2022-10-16 11:13:39,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 6.66) internal successors, (333), 50 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 2433 transitions. [2022-10-16 11:13:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2022-10-16 11:13:39,333 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:39,334 INFO L195 NwaCegarLoop]: trace histogram [93, 93, 93, 92, 92, 92, 92, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2022-10-16 11:13:39,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 11:13:39,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:39,547 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:39,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:39,548 INFO L85 PathProgramCache]: Analyzing trace with hash -472866897, now seen corresponding path program 2 times [2022-10-16 11:13:39,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:39,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905371066] [2022-10-16 11:13:39,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:39,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:39,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:39,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [358671511] [2022-10-16 11:13:39,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:13:39,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:39,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:39,616 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:13:39,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 11:13:39,751 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:13:39,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:13:39,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:13:39,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:40,458 INFO L134 CoverageAnalysis]: Checked inductivity of 29874 backedges. 0 proven. 374 refuted. 0 times theorem prover too weak. 29500 trivial. 0 not checked. [2022-10-16 11:13:40,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:41,387 INFO L134 CoverageAnalysis]: Checked inductivity of 29874 backedges. 0 proven. 374 refuted. 0 times theorem prover too weak. 29500 trivial. 0 not checked. [2022-10-16 11:13:41,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905371066] [2022-10-16 11:13:41,388 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:41,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358671511] [2022-10-16 11:13:41,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358671511] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:41,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:41,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 11:13:41,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922980741] [2022-10-16 11:13:41,389 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:41,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 11:13:41,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:41,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 11:13:41,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:13:41,391 INFO L87 Difference]: Start difference. First operand 2283 states and 2433 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:41,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:13:41,798 INFO L93 Difference]: Finished difference Result 3705 states and 3955 transitions. [2022-10-16 11:13:41,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 11:13:41,798 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 668 [2022-10-16 11:13:41,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:13:41,821 INFO L225 Difference]: With dead ends: 3705 [2022-10-16 11:13:41,821 INFO L226 Difference]: Without dead ends: 3703 [2022-10-16 11:13:41,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1339 GetRequests, 1328 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-16 11:13:41,823 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 206 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:13:41,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 13 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:13:41,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2022-10-16 11:13:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 2600. [2022-10-16 11:13:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2600 states, 2598 states have (on average 1.0415704387990763) internal successors, (2706), 2599 states have internal predecessors, (2706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:42,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2600 states to 2600 states and 2706 transitions. [2022-10-16 11:13:42,093 INFO L78 Accepts]: Start accepts. Automaton has 2600 states and 2706 transitions. Word has length 668 [2022-10-16 11:13:42,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:13:42,094 INFO L495 AbstractCegarLoop]: Abstraction has 2600 states and 2706 transitions. [2022-10-16 11:13:42,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:13:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 2600 states and 2706 transitions. [2022-10-16 11:13:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 777 [2022-10-16 11:13:42,123 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:13:42,124 INFO L195 NwaCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 48, 48, 46, 46, 46, 46, 46, 46, 46, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:13:42,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2022-10-16 11:13:42,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:42,337 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:13:42,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:13:42,338 INFO L85 PathProgramCache]: Analyzing trace with hash -797124232, now seen corresponding path program 1 times [2022-10-16 11:13:42,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:13:42,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007984946] [2022-10-16 11:13:42,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:42,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:13:42,425 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:13:42,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [529086348] [2022-10-16 11:13:42,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:13:42,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:13:42,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:13:42,427 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:13:42,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 11:13:42,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:13:42,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 49 conjunts are in the unsatisfiable core [2022-10-16 11:13:42,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:13:45,098 INFO L134 CoverageAnalysis]: Checked inductivity of 17687 backedges. 2 proven. 7291 refuted. 0 times theorem prover too weak. 10394 trivial. 0 not checked. [2022-10-16 11:13:45,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:13:50,078 INFO L134 CoverageAnalysis]: Checked inductivity of 17687 backedges. 2 proven. 7291 refuted. 0 times theorem prover too weak. 10394 trivial. 0 not checked. [2022-10-16 11:13:50,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:13:50,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007984946] [2022-10-16 11:13:50,079 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:13:50,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [529086348] [2022-10-16 11:13:50,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [529086348] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:13:50,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:13:50,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 98 [2022-10-16 11:13:50,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773549912] [2022-10-16 11:13:50,080 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:13:50,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-10-16 11:13:50,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:13:50,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-10-16 11:13:50,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4659, Invalid=4847, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 11:13:50,088 INFO L87 Difference]: Start difference. First operand 2600 states and 2706 transitions. Second operand has 98 states, 98 states have (on average 6.887755102040816) internal successors, (675), 98 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:14:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:05,207 INFO L93 Difference]: Finished difference Result 8022 states and 8480 transitions. [2022-10-16 11:14:05,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-10-16 11:14:05,210 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 6.887755102040816) internal successors, (675), 98 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 776 [2022-10-16 11:14:05,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:05,232 INFO L225 Difference]: With dead ends: 8022 [2022-10-16 11:14:05,232 INFO L226 Difference]: Without dead ends: 5426 [2022-10-16 11:14:05,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1597 GetRequests, 1454 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4465 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=9265, Invalid=11615, Unknown=0, NotChecked=0, Total=20880 [2022-10-16 11:14:05,244 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 6696 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 791 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6696 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 791 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:05,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6696 Valid, 622 Invalid, 1957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [791 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-10-16 11:14:05,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5426 states. [2022-10-16 11:14:05,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5426 to 5240. [2022-10-16 11:14:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5240 states, 5238 states have (on average 1.038946162657503) internal successors, (5442), 5239 states have internal predecessors, (5442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:14:05,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5240 states to 5240 states and 5442 transitions. [2022-10-16 11:14:05,780 INFO L78 Accepts]: Start accepts. Automaton has 5240 states and 5442 transitions. Word has length 776 [2022-10-16 11:14:05,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:05,781 INFO L495 AbstractCegarLoop]: Abstraction has 5240 states and 5442 transitions. [2022-10-16 11:14:05,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 6.887755102040816) internal successors, (675), 98 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:14:05,782 INFO L276 IsEmpty]: Start isEmpty. Operand 5240 states and 5442 transitions. [2022-10-16 11:14:05,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1545 [2022-10-16 11:14:05,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:14:05,805 INFO L195 NwaCegarLoop]: trace histogram [97, 97, 97, 96, 96, 96, 96, 96, 96, 94, 94, 94, 94, 94, 94, 94, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:14:05,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 11:14:06,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:06,019 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-10-16 11:14:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:14:06,021 INFO L85 PathProgramCache]: Analyzing trace with hash -463613576, now seen corresponding path program 2 times [2022-10-16 11:14:06,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:14:06,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705580021] [2022-10-16 11:14:06,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:14:06,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:14:06,146 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 11:14:06,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [676403684] [2022-10-16 11:14:06,147 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:14:06,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:06,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:14:06,148 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:14:06,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 11:14:06,374 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:14:06,374 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:14:06,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:14:06,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:14:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 72215 backedges. 1789 proven. 288 refuted. 0 times theorem prover too weak. 70138 trivial. 0 not checked. [2022-10-16 11:14:10,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:14:13,153 INFO L134 CoverageAnalysis]: Checked inductivity of 72215 backedges. 0 proven. 2077 refuted. 0 times theorem prover too weak. 70138 trivial. 0 not checked. [2022-10-16 11:14:13,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:14:13,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705580021] [2022-10-16 11:14:13,154 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 11:14:13,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676403684] [2022-10-16 11:14:13,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676403684] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:14:13,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 11:14:13,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-16 11:14:13,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549247679] [2022-10-16 11:14:13,155 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 11:14:13,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 11:14:13,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:14:13,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 11:14:13,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:14:13,158 INFO L87 Difference]: Start difference. First operand 5240 states and 5442 transitions. Second operand has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:14:13,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:14:13,983 INFO L93 Difference]: Finished difference Result 6094 states and 6392 transitions. [2022-10-16 11:14:13,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 11:14:13,985 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1544 [2022-10-16 11:14:13,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:14:13,989 INFO L225 Difference]: With dead ends: 6094 [2022-10-16 11:14:13,989 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 11:14:13,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3093 GetRequests, 3078 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=169, Unknown=0, NotChecked=0, Total=272 [2022-10-16 11:14:13,995 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 151 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:14:13,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 14 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:14:13,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 11:14:13,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 11:14:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:14:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 11:14:13,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1544 [2022-10-16 11:14:13,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:14:13,997 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 11:14:13,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 10.333333333333334) internal successors, (93), 10 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:14:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 11:14:13,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 11:14:14,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-10-16 11:14:14,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-10-16 11:14:14,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-10-16 11:14:14,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-10-16 11:14:14,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-10-16 11:14:14,002 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-10-16 11:14:14,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-10-16 11:14:14,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-10-16 11:14:14,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-10-16 11:14:14,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-10-16 11:14:14,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-10-16 11:14:14,003 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-10-16 11:14:14,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-10-16 11:14:14,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-10-16 11:14:14,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-10-16 11:14:14,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-10-16 11:14:14,004 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-10-16 11:14:14,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-10-16 11:14:14,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-10-16 11:14:14,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-10-16 11:14:14,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 11:14:14,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:14:14,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 11:15:00,003 WARN L233 SmtUtils]: Spent 45.77s on a formula simplification. DAG size of input: 955 DAG size of output: 915 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 11:15:43,998 WARN L233 SmtUtils]: Spent 43.97s on a formula simplification. DAG size of input: 957 DAG size of output: 954 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 11:16:13,374 WARN L233 SmtUtils]: Spent 29.30s on a formula simplification. DAG size of input: 1098 DAG size of output: 1095 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-10-16 11:16:26,454 WARN L233 SmtUtils]: Spent 13.06s on a formula simplification. DAG size of input: 915 DAG size of output: 17 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-10-16 11:16:41,334 WARN L233 SmtUtils]: Spent 14.80s on a formula simplification. DAG size of input: 954 DAG size of output: 19 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-10-16 11:16:55,736 WARN L233 SmtUtils]: Spent 14.08s on a formula simplification. DAG size of input: 1095 DAG size of output: 19 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-10-16 11:16:55,740 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,740 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 34) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1000 |ULTIMATE.start_main_~n~0#1|) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~n~0#1| 1000)) [2022-10-16 11:16:55,741 INFO L899 garLoopResultBuilder]: For program point L27-3(lines 27 34) no Hoare annotation was computed. [2022-10-16 11:16:55,741 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-10-16 11:16:55,741 INFO L895 garLoopResultBuilder]: At program point L44-2(lines 44 56) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1000 |ULTIMATE.start_main_~n~0#1|) (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) 2147483649) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~n~0#1| 1000)) [2022-10-16 11:16:55,741 INFO L899 garLoopResultBuilder]: For program point L44-3(lines 44 56) no Hoare annotation was computed. [2022-10-16 11:16:55,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-10-16 11:16:55,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 11:16:55,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 11:16:55,744 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-10-16 11:16:55,745 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2022-10-16 11:16:55,745 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-10-16 11:16:55,745 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,745 INFO L895 garLoopResultBuilder]: At program point L29-2(lines 29 32) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1000 |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~n~0#1| 1000) (<= |ULTIMATE.start_main_~j~0#1| 999)) [2022-10-16 11:16:55,745 INFO L899 garLoopResultBuilder]: For program point L29-3(lines 29 32) no Hoare annotation was computed. [2022-10-16 11:16:55,745 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 53) no Hoare annotation was computed. [2022-10-16 11:16:55,746 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-10-16 11:16:55,746 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,746 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,746 INFO L899 garLoopResultBuilder]: For program point L30-2(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,746 INFO L899 garLoopResultBuilder]: For program point L30-3(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,746 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2022-10-16 11:16:55,746 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2022-10-16 11:16:55,747 INFO L895 garLoopResultBuilder]: At program point L47-2(lines 47 54) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1000 |ULTIMATE.start_main_~n~0#1|) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~n~0#1| 1000)) [2022-10-16 11:16:55,747 INFO L899 garLoopResultBuilder]: For program point L47-3(lines 47 54) no Hoare annotation was computed. [2022-10-16 11:16:55,747 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,747 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-10-16 11:16:55,748 INFO L895 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1000 |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 999) (<= |ULTIMATE.start_main_~n~0#1| 1000) (<= |ULTIMATE.start_main_~j~0#1| 999)) [2022-10-16 11:16:55,748 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-10-16 11:16:55,749 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-10-16 11:16:55,749 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 55) no Hoare annotation was computed. [2022-10-16 11:16:55,749 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,749 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-10-16 11:16:55,749 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 11:16:55,749 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-10-16 11:16:55,749 INFO L902 garLoopResultBuilder]: At program point L57(lines 13 58) the Hoare annotation is: true [2022-10-16 11:16:55,750 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 36) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1000 |ULTIMATE.start_main_~n~0#1|) (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) 2147483649) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~n~0#1| 1000)) [2022-10-16 11:16:55,750 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 36) no Hoare annotation was computed. [2022-10-16 11:16:55,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,750 INFO L895 garLoopResultBuilder]: At program point L49-2(lines 49 52) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 1000 |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (<= |ULTIMATE.start_main_~n~0#1| 1000) (<= |ULTIMATE.start_main_~j~0#1| 999)) [2022-10-16 11:16:55,750 INFO L899 garLoopResultBuilder]: For program point L49-3(lines 49 52) no Hoare annotation was computed. [2022-10-16 11:16:55,750 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-10-16 11:16:55,750 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 11:16:55,751 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-10-16 11:16:55,752 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,752 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,753 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,754 INFO L899 garLoopResultBuilder]: For program point L50-2(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,754 INFO L899 garLoopResultBuilder]: For program point L50-3(line 50) no Hoare annotation was computed. [2022-10-16 11:16:55,754 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-10-16 11:16:55,755 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-10-16 11:16:55,755 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-10-16 11:16:55,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-10-16 11:16:55,756 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-10-16 11:16:55,756 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-10-16 11:16:55,760 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:16:55,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 11:16:55,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 11:16:55 BoogieIcfgContainer [2022-10-16 11:16:55,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 11:16:55,801 INFO L158 Benchmark]: Toolchain (without parser) took 217142.04ms. Allocated memory was 157.3MB in the beginning and 654.3MB in the end (delta: 497.0MB). Free memory was 132.0MB in the beginning and 497.6MB in the end (delta: -365.6MB). Peak memory consumption was 414.7MB. Max. memory is 8.0GB. [2022-10-16 11:16:55,801 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 11:16:55,802 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.35ms. Allocated memory is still 157.3MB. Free memory was 131.8MB in the beginning and 121.7MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 11:16:55,805 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.25ms. Allocated memory is still 157.3MB. Free memory was 121.7MB in the beginning and 120.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 11:16:55,805 INFO L158 Benchmark]: Boogie Preprocessor took 56.03ms. Allocated memory is still 157.3MB. Free memory was 120.0MB in the beginning and 118.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-10-16 11:16:55,806 INFO L158 Benchmark]: RCFGBuilder took 512.33ms. Allocated memory is still 157.3MB. Free memory was 118.7MB in the beginning and 105.3MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 11:16:55,806 INFO L158 Benchmark]: TraceAbstraction took 216154.69ms. Allocated memory was 157.3MB in the beginning and 654.3MB in the end (delta: 497.0MB). Free memory was 104.7MB in the beginning and 497.6MB in the end (delta: -392.9MB). Peak memory consumption was 387.4MB. Max. memory is 8.0GB. [2022-10-16 11:16:55,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 131.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 339.35ms. Allocated memory is still 157.3MB. Free memory was 131.8MB in the beginning and 121.7MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 64.25ms. Allocated memory is still 157.3MB. Free memory was 121.7MB in the beginning and 120.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 56.03ms. Allocated memory is still 157.3MB. Free memory was 120.0MB in the beginning and 118.7MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 512.33ms. Allocated memory is still 157.3MB. Free memory was 118.7MB in the beginning and 105.3MB in the end (delta: 13.4MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 216154.69ms. Allocated memory was 157.3MB in the beginning and 654.3MB in the end (delta: 497.0MB). Free memory was 104.7MB in the beginning and 497.6MB in the end (delta: -392.9MB). Peak memory consumption was 387.4MB. 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 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 53]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 216.0s, OverallIterations: 23, TraceHistogramMax: 97, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 23.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 161.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13112 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13112 mSDsluCounter, 2201 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1720 mSDsCounter, 2033 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3891 IncrementalHoareTripleChecker+Invalid, 5924 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2033 mSolverCounterUnsat, 481 mSDtfsCounter, 3891 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8304 GetRequests, 7933 SyntacticMatches, 0 SemanticMatches, 371 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6079 ImplicationChecksByTransitivity, 16.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5240occurred in iteration=22, InterpolantAutomatonStates: 293, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 23 MinimizatonAttempts, 3601 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 1169 NumberOfFragments, 178 HoareAnnotationTreeSize, 8 FomulaSimplifications, 214334 FormulaSimplificationTreeSizeReduction, 119.2s HoareSimplificationTime, 8 FomulaSimplificationsInter, 323975 FormulaSimplificationTreeSizeReductionInter, 42.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 20.8s InterpolantComputationTime, 4147 NumberOfCodeBlocks, 1503 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 8181 ConstructedInterpolants, 0 QuantifiedInterpolants, 35710 SizeOfPredicates, 27 NumberOfNonLiveVariables, 3820 ConjunctsInSsa, 158 ConjunctsInUnsatCore, 35 InterpolantComputations, 11 PerfectInterpolantSequences, 245845/271512 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: ((((((0 <= k && 1000 <= n) && 0 <= j) && i < n) && 0 <= i) && k <= 999) && n <= 1000) && j <= 999 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((0 <= k && 1000 <= n) && i + n < 2147483649) && 0 <= j) && 0 <= i) && k <= 2147483646) && n <= 1000 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((0 <= k && 1000 <= n) && 0 <= j) && i < n) && 0 <= i) && k <= 2147483646) && n <= 1000) && j <= 999 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((((((0 <= k && 1000 <= n) && i + j <= 2147483647) && 0 <= j) && i < n) && 0 <= i) && k <= 2147483646) && n <= 1000 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: (((((0 <= k && 1000 <= n) && i + n < 2147483649) && 0 <= j) && 0 <= i) && k <= 2147483646) && n <= 1000 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((0 <= k && 1000 <= n) && i + j <= 2147483647) && 0 <= j) && i < n) && 0 <= i) && k <= 2147483646) && n <= 1000 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((((0 <= k && 1000 <= n) && 0 <= j) && i < n) && 0 <= i) && k <= 2147483646) && n <= 1000) && j <= 999 RESULT: Ultimate proved your program to be correct! [2022-10-16 11:16:55,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...