/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-2-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:28:56,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:28:56,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:28:56,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:28:56,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:28:56,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:28:56,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:28:56,914 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:28:56,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:28:56,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:28:56,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:28:56,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 20:28:56,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 20:28:56,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 20:28:56,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 20:28:56,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 20:28:56,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 20:28:56,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 20:28:56,959 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 20:28:56,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 20:28:56,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 20:28:56,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 20:28:56,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 20:28:56,982 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 20:28:56,994 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-15 20:28:57,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 20:28:57,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 20:28:57,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 20:28:57,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 20:28:57,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 20:28:57,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 20:28:57,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 20:28:57,011 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 20:28:57,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:28:57,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:28:57,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:28:57,015 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 [2022-10-15 20:28:57,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:28:57,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:28:57,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:28:57,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:28:57,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:28:57,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:28:57,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:28:57,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:28:57,089 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:28:57,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:28:57,091 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:28:57,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:28:57,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:28:57,092 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:28:57,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:28:57,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:28:57,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:28:57,093 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:28:57,094 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:28:57,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:28:57,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:28:57,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:28:57,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:28:57,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:28:57,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:28:57,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:28:57,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:28:57,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:28:57,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:28:57,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:28:57,097 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:28:57,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:28:57,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:28:57,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:28:57,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:28:57,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:28:57,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:28:57,653 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:28:57,654 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:28:57,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2022-10-15 20:28:57,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1cf7815/876ee627a08e4602a19defd6dd1c25d8/FLAG2adb60216 [2022-10-15 20:28:58,386 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:28:58,387 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2022-10-15 20:28:58,395 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1cf7815/876ee627a08e4602a19defd6dd1c25d8/FLAG2adb60216 [2022-10-15 20:28:58,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e1cf7815/876ee627a08e4602a19defd6dd1c25d8 [2022-10-15 20:28:58,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:28:58,762 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:28:58,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:28:58,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:28:58,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:28:58,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:28:58" (1/1) ... [2022-10-15 20:28:58,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f52d491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:58, skipping insertion in model container [2022-10-15 20:28:58,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:28:58" (1/1) ... [2022-10-15 20:28:58,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:28:58,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:28:58,976 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-2-n-u.c[421,434] [2022-10-15 20:28:59,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:28:59,015 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:28:59,033 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-2-n-u.c[421,434] [2022-10-15 20:28:59,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:28:59,073 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:28:59,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59 WrapperNode [2022-10-15 20:28:59,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:28:59,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:28:59,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:28:59,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:28:59,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,113 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,158 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-10-15 20:28:59,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:28:59,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:28:59,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:28:59,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:28:59,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,183 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,224 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:28:59,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:28:59,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:28:59,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:28:59,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (1/1) ... [2022-10-15 20:28:59,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:28:59,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:28:59,301 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) [2022-10-15 20:28:59,323 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 [2022-10-15 20:28:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:28:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 20:28:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 20:28:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:28:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:28:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:28:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:28:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:28:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:28:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:28:59,503 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:28:59,506 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:28:59,829 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:28:59,853 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:28:59,858 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 20:28:59,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:28:59 BoogieIcfgContainer [2022-10-15 20:28:59,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:28:59,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:28:59,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:28:59,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:28:59,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:28:58" (1/3) ... [2022-10-15 20:28:59,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27110fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:28:59, skipping insertion in model container [2022-10-15 20:28:59,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:28:59" (2/3) ... [2022-10-15 20:28:59,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27110fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:28:59, skipping insertion in model container [2022-10-15 20:28:59,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:28:59" (3/3) ... [2022-10-15 20:28:59,884 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u.c [2022-10-15 20:28:59,916 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:28:59,916 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-15 20:29:00,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:29:00,027 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;@5c5012b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:29:00,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-15 20:29:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 41 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:29:00,063 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:00,064 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:00,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:00,074 INFO L85 PathProgramCache]: Analyzing trace with hash 134155656, now seen corresponding path program 1 times [2022-10-15 20:29:00,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:00,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345766273] [2022-10-15 20:29:00,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:00,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:00,244 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:00,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1704656101] [2022-10-15 20:29:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:00,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:00,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:00,249 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) [2022-10-15 20:29:00,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:29:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:00,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2022-10-15 20:29:00,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:00,410 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:00,410 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:29:00,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:00,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345766273] [2022-10-15 20:29:00,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:00,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704656101] [2022-10-15 20:29:00,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704656101] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:29:00,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:29:00,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:29:00,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220509224] [2022-10-15 20:29:00,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:29:00,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 20:29:00,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:00,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 20:29:00,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 20:29:00,476 INFO L87 Difference]: Start difference. First operand has 44 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 41 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:00,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:00,510 INFO L93 Difference]: Finished difference Result 85 states and 106 transitions. [2022-10-15 20:29:00,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 20:29:00,513 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-10-15 20:29:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:00,524 INFO L225 Difference]: With dead ends: 85 [2022-10-15 20:29:00,524 INFO L226 Difference]: Without dead ends: 39 [2022-10-15 20:29:00,528 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 20:29:00,533 INFO L413 NwaCegarLoop]: 48 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, 48 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 [2022-10-15 20:29:00,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:29:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-10-15 20:29:00,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-10-15 20:29:00,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.625) internal successors, (39), 36 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-10-15 20:29:00,625 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2022-10-15 20:29:00,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:00,628 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-10-15 20:29:00,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:00,629 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-10-15 20:29:00,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:29:00,632 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:00,633 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:00,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 20:29:00,847 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 [2022-10-15 20:29:00,849 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:00,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:00,852 INFO L85 PathProgramCache]: Analyzing trace with hash 134155284, now seen corresponding path program 1 times [2022-10-15 20:29:00,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:00,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661414432] [2022-10-15 20:29:00,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:00,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:00,884 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:00,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [548907991] [2022-10-15 20:29:00,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:00,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:00,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:00,889 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) [2022-10-15 20:29:00,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:29:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:00,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:29:00,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:01,039 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:01,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:29:01,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:01,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661414432] [2022-10-15 20:29:01,040 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:01,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548907991] [2022-10-15 20:29:01,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548907991] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:29:01,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:29:01,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:29:01,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162804673] [2022-10-15 20:29:01,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:29:01,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:29:01,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:01,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:29:01,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:29:01,045 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:01,131 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2022-10-15 20:29:01,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:29:01,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-10-15 20:29:01,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:01,134 INFO L225 Difference]: With dead ends: 68 [2022-10-15 20:29:01,135 INFO L226 Difference]: Without dead ends: 66 [2022-10-15 20:29:01,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:29:01,140 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:01,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 44 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:29:01,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-15 20:29:01,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 55. [2022-10-15 20:29:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 40 states have (on average 1.65) internal successors, (66), 51 states have internal predecessors, (66), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:01,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 70 transitions. [2022-10-15 20:29:01,175 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 70 transitions. Word has length 15 [2022-10-15 20:29:01,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:01,176 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 70 transitions. [2022-10-15 20:29:01,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:01,177 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2022-10-15 20:29:01,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:29:01,178 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:01,181 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:01,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:01,382 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 [2022-10-15 20:29:01,383 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:01,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:01,386 INFO L85 PathProgramCache]: Analyzing trace with hash 134155335, now seen corresponding path program 1 times [2022-10-15 20:29:01,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:01,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555524185] [2022-10-15 20:29:01,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:01,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:01,403 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:01,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1901393967] [2022-10-15 20:29:01,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:01,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:01,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:01,406 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) [2022-10-15 20:29:01,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:29:01,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:01,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:29:01,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:01,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:01,567 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:29:01,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:01,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555524185] [2022-10-15 20:29:01,568 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:01,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901393967] [2022-10-15 20:29:01,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901393967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:29:01,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:29:01,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:29:01,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525652220] [2022-10-15 20:29:01,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:29:01,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:29:01,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:29:01,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:29:01,575 INFO L87 Difference]: Start difference. First operand 55 states and 70 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:01,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:01,818 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2022-10-15 20:29:01,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:29:01,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-10-15 20:29:01,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:01,822 INFO L225 Difference]: With dead ends: 90 [2022-10-15 20:29:01,822 INFO L226 Difference]: Without dead ends: 86 [2022-10-15 20:29:01,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:29:01,824 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 65 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:01,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 41 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:29:01,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-10-15 20:29:01,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 65. [2022-10-15 20:29:01,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.6) internal successors, (80), 61 states have internal predecessors, (80), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:01,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-10-15 20:29:01,842 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 15 [2022-10-15 20:29:01,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:01,843 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-10-15 20:29:01,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:01,843 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-10-15 20:29:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:29:01,844 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:01,845 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:01,880 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:02,060 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 [2022-10-15 20:29:02,061 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:02,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:02,063 INFO L85 PathProgramCache]: Analyzing trace with hash -136153425, now seen corresponding path program 1 times [2022-10-15 20:29:02,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:02,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621152679] [2022-10-15 20:29:02,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:02,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:02,086 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:02,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [120741830] [2022-10-15 20:29:02,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:02,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:02,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:02,090 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) [2022-10-15 20:29:02,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:29:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:02,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:29:02,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:02,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:29:02,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:02,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621152679] [2022-10-15 20:29:02,167 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:02,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120741830] [2022-10-15 20:29:02,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120741830] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:29:02,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:29:02,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:29:02,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591417494] [2022-10-15 20:29:02,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:29:02,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:29:02,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:02,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:29:02,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:29:02,171 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:02,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:02,220 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2022-10-15 20:29:02,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:29:02,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-10-15 20:29:02,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:02,223 INFO L225 Difference]: With dead ends: 65 [2022-10-15 20:29:02,223 INFO L226 Difference]: Without dead ends: 63 [2022-10-15 20:29:02,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:29:02,228 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 26 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:02,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:29:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-15 20:29:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-10-15 20:29:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 50 states have (on average 1.56) internal successors, (78), 59 states have internal predecessors, (78), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2022-10-15 20:29:02,244 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 16 [2022-10-15 20:29:02,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:02,244 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2022-10-15 20:29:02,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2022-10-15 20:29:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-15 20:29:02,246 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:02,246 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:02,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:02,461 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 [2022-10-15 20:29:02,462 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:02,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:02,463 INFO L85 PathProgramCache]: Analyzing trace with hash -136151855, now seen corresponding path program 1 times [2022-10-15 20:29:02,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:02,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634550929] [2022-10-15 20:29:02,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:02,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:02,491 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:02,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116377974] [2022-10-15 20:29:02,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:02,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:02,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:02,498 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) [2022-10-15 20:29:02,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:29:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:02,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:29:02,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:02,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:29:02,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:02,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634550929] [2022-10-15 20:29:02,606 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:02,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116377974] [2022-10-15 20:29:02,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116377974] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:29:02,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:29:02,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:29:02,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633207678] [2022-10-15 20:29:02,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:29:02,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:29:02,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:29:02,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:29:02,613 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:02,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:02,714 INFO L93 Difference]: Finished difference Result 63 states and 82 transitions. [2022-10-15 20:29:02,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:29:02,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-10-15 20:29:02,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:02,720 INFO L225 Difference]: With dead ends: 63 [2022-10-15 20:29:02,721 INFO L226 Difference]: Without dead ends: 59 [2022-10-15 20:29:02,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:29:02,723 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:02,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 24 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:29:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-10-15 20:29:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-10-15 20:29:02,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.36) internal successors, (68), 55 states have internal predecessors, (68), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:02,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 72 transitions. [2022-10-15 20:29:02,738 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 72 transitions. Word has length 16 [2022-10-15 20:29:02,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:02,738 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 72 transitions. [2022-10-15 20:29:02,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:02,739 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 72 transitions. [2022-10-15 20:29:02,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:29:02,745 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:02,746 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:02,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:02,959 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 [2022-10-15 20:29:02,960 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:02,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:02,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1697513813, now seen corresponding path program 1 times [2022-10-15 20:29:02,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:02,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591679449] [2022-10-15 20:29:02,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:02,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:02,983 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:02,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1380945891] [2022-10-15 20:29:02,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:02,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:02,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:02,997 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) [2022-10-15 20:29:03,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:29:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:03,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:29:03,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:03,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:03,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:03,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591679449] [2022-10-15 20:29:03,162 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:03,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380945891] [2022-10-15 20:29:03,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380945891] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:03,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:03,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-10-15 20:29:03,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936327069] [2022-10-15 20:29:03,165 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:03,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:29:03,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:03,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:29:03,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:29:03,170 INFO L87 Difference]: Start difference. First operand 59 states and 72 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:03,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:03,362 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2022-10-15 20:29:03,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:29:03,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 19 [2022-10-15 20:29:03,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:03,366 INFO L225 Difference]: With dead ends: 135 [2022-10-15 20:29:03,366 INFO L226 Difference]: Without dead ends: 133 [2022-10-15 20:29:03,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:29:03,368 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 194 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:03,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 75 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:29:03,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-10-15 20:29:03,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 113. [2022-10-15 20:29:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 104 states have (on average 1.375) internal successors, (143), 109 states have internal predecessors, (143), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:03,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2022-10-15 20:29:03,389 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 19 [2022-10-15 20:29:03,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:03,389 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2022-10-15 20:29:03,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:03,390 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2022-10-15 20:29:03,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:29:03,391 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:03,391 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:03,435 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:03,606 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 [2022-10-15 20:29:03,607 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:03,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:03,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1697513762, now seen corresponding path program 1 times [2022-10-15 20:29:03,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:03,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460682462] [2022-10-15 20:29:03,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:03,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:03,621 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:03,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1383508474] [2022-10-15 20:29:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:03,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:03,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:03,624 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) [2022-10-15 20:29:03,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:29:03,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:03,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:29:03,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:03,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:03,793 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:03,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:03,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460682462] [2022-10-15 20:29:03,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:03,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383508474] [2022-10-15 20:29:03,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383508474] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:03,795 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:03,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-10-15 20:29:03,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518507511] [2022-10-15 20:29:03,798 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:03,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:29:03,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:03,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:29:03,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:29:03,801 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:03,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:03,924 INFO L93 Difference]: Finished difference Result 323 states and 422 transitions. [2022-10-15 20:29:03,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:29:03,924 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2022-10-15 20:29:03,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:03,926 INFO L225 Difference]: With dead ends: 323 [2022-10-15 20:29:03,927 INFO L226 Difference]: Without dead ends: 231 [2022-10-15 20:29:03,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:29:03,929 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 58 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:03,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 94 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:29:03,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-10-15 20:29:03,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 190. [2022-10-15 20:29:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 181 states have (on average 1.3370165745856353) internal successors, (242), 186 states have internal predecessors, (242), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 246 transitions. [2022-10-15 20:29:03,960 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 246 transitions. Word has length 19 [2022-10-15 20:29:03,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:03,960 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 246 transitions. [2022-10-15 20:29:03,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:03,961 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 246 transitions. [2022-10-15 20:29:03,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 20:29:03,962 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:03,962 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:03,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:04,176 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 [2022-10-15 20:29:04,177 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash 367063445, now seen corresponding path program 1 times [2022-10-15 20:29:04,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:04,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676070455] [2022-10-15 20:29:04,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:04,190 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:04,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [414725434] [2022-10-15 20:29:04,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:04,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:04,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:04,192 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) [2022-10-15 20:29:04,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:29:04,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:04,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:29:04,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:04,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:04,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:04,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676070455] [2022-10-15 20:29:04,387 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:04,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414725434] [2022-10-15 20:29:04,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414725434] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:04,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:04,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-15 20:29:04,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776418588] [2022-10-15 20:29:04,388 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:04,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 20:29:04,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:04,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 20:29:04,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:29:04,390 INFO L87 Difference]: Start difference. First operand 190 states and 246 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:04,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:04,702 INFO L93 Difference]: Finished difference Result 250 states and 316 transitions. [2022-10-15 20:29:04,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 20:29:04,703 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2022-10-15 20:29:04,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:04,705 INFO L225 Difference]: With dead ends: 250 [2022-10-15 20:29:04,706 INFO L226 Difference]: Without dead ends: 246 [2022-10-15 20:29:04,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:29:04,707 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 195 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:04,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 51 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:29:04,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-10-15 20:29:04,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 208. [2022-10-15 20:29:04,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 199 states have (on average 1.306532663316583) internal successors, (260), 204 states have internal predecessors, (260), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:04,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 264 transitions. [2022-10-15 20:29:04,738 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 264 transitions. Word has length 20 [2022-10-15 20:29:04,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:04,739 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 264 transitions. [2022-10-15 20:29:04,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 8 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:04,740 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 264 transitions. [2022-10-15 20:29:04,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 20:29:04,741 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:04,741 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:04,786 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:04,955 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 [2022-10-15 20:29:04,955 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash -131527095, now seen corresponding path program 1 times [2022-10-15 20:29:04,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:04,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003921616] [2022-10-15 20:29:04,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:04,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:04,971 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:04,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [129834500] [2022-10-15 20:29:04,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:04,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:04,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:04,973 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) [2022-10-15 20:29:04,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:29:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:05,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:29:05,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:05,056 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:05,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:05,135 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:29:05,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:05,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003921616] [2022-10-15 20:29:05,135 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:05,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129834500] [2022-10-15 20:29:05,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129834500] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:05,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:05,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-15 20:29:05,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832350952] [2022-10-15 20:29:05,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:05,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 20:29:05,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:05,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 20:29:05,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:29:05,138 INFO L87 Difference]: Start difference. First operand 208 states and 264 transitions. Second operand has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:05,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:05,366 INFO L93 Difference]: Finished difference Result 652 states and 844 transitions. [2022-10-15 20:29:05,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:29:05,367 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-10-15 20:29:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:05,372 INFO L225 Difference]: With dead ends: 652 [2022-10-15 20:29:05,372 INFO L226 Difference]: Without dead ends: 650 [2022-10-15 20:29:05,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:29:05,374 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 162 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:05,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 95 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:29:05,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-10-15 20:29:05,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 490. [2022-10-15 20:29:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 481 states have (on average 1.3014553014553014) internal successors, (626), 486 states have internal predecessors, (626), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 630 transitions. [2022-10-15 20:29:05,433 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 630 transitions. Word has length 27 [2022-10-15 20:29:05,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:05,433 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 630 transitions. [2022-10-15 20:29:05,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:05,434 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 630 transitions. [2022-10-15 20:29:05,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-15 20:29:05,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:05,436 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:05,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:05,649 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 [2022-10-15 20:29:05,650 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:05,651 INFO L85 PathProgramCache]: Analyzing trace with hash 143327600, now seen corresponding path program 2 times [2022-10-15 20:29:05,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:05,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219830233] [2022-10-15 20:29:05,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:05,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:05,663 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:05,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932059378] [2022-10-15 20:29:05,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:29:05,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:05,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:05,665 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) [2022-10-15 20:29:05,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 20:29:05,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:29:05,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:29:05,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:29:05,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:05,782 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-15 20:29:05,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-10-15 20:29:05,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:05,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219830233] [2022-10-15 20:29:05,831 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:05,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932059378] [2022-10-15 20:29:05,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932059378] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:05,832 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:05,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2022-10-15 20:29:05,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816679388] [2022-10-15 20:29:05,832 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:05,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:29:05,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:05,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:29:05,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:29:05,834 INFO L87 Difference]: Start difference. First operand 490 states and 630 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:05,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:05,914 INFO L93 Difference]: Finished difference Result 491 states and 631 transitions. [2022-10-15 20:29:05,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:29:05,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2022-10-15 20:29:05,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:05,919 INFO L225 Difference]: With dead ends: 491 [2022-10-15 20:29:05,919 INFO L226 Difference]: Without dead ends: 452 [2022-10-15 20:29:05,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:29:05,921 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 45 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:05,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 31 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:29:05,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2022-10-15 20:29:05,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 207. [2022-10-15 20:29:05,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 200 states have (on average 1.235) internal successors, (247), 203 states have internal predecessors, (247), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:05,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 251 transitions. [2022-10-15 20:29:05,952 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 251 transitions. Word has length 31 [2022-10-15 20:29:05,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:05,953 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 251 transitions. [2022-10-15 20:29:05,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:05,953 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 251 transitions. [2022-10-15 20:29:05,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-15 20:29:05,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:05,955 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:05,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:06,169 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 [2022-10-15 20:29:06,170 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:06,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:06,171 INFO L85 PathProgramCache]: Analyzing trace with hash -337560089, now seen corresponding path program 1 times [2022-10-15 20:29:06,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:06,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29947913] [2022-10-15 20:29:06,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:06,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:06,184 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:06,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1735009672] [2022-10-15 20:29:06,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:06,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:06,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:06,188 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) [2022-10-15 20:29:06,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-15 20:29:06,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:06,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:29:06,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:29:06,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:06,391 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:29:06,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:06,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29947913] [2022-10-15 20:29:06,392 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:06,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735009672] [2022-10-15 20:29:06,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735009672] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:06,393 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:06,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-10-15 20:29:06,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984726786] [2022-10-15 20:29:06,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:06,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:29:06,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:06,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:29:06,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:29:06,395 INFO L87 Difference]: Start difference. First operand 207 states and 251 transitions. Second operand has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:06,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:06,813 INFO L93 Difference]: Finished difference Result 566 states and 709 transitions. [2022-10-15 20:29:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-15 20:29:06,814 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2022-10-15 20:29:06,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:06,818 INFO L225 Difference]: With dead ends: 566 [2022-10-15 20:29:06,819 INFO L226 Difference]: Without dead ends: 564 [2022-10-15 20:29:06,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=180, Unknown=0, NotChecked=0, Total=306 [2022-10-15 20:29:06,821 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 375 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:06,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 54 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:29:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2022-10-15 20:29:06,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 295. [2022-10-15 20:29:06,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 288 states have (on average 1.2430555555555556) internal successors, (358), 291 states have internal predecessors, (358), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:06,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 362 transitions. [2022-10-15 20:29:06,862 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 362 transitions. Word has length 33 [2022-10-15 20:29:06,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:06,863 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 362 transitions. [2022-10-15 20:29:06,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.333333333333333) internal successors, (48), 10 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:06,863 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 362 transitions. [2022-10-15 20:29:06,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-15 20:29:06,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:06,865 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:06,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:07,078 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 [2022-10-15 20:29:07,078 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:07,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:07,079 INFO L85 PathProgramCache]: Analyzing trace with hash -424045652, now seen corresponding path program 2 times [2022-10-15 20:29:07,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:07,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025245853] [2022-10-15 20:29:07,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:07,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:07,099 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:07,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607964309] [2022-10-15 20:29:07,100 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:29:07,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:07,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:07,101 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) [2022-10-15 20:29:07,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-15 20:29:07,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:29:07,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:29:07,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 20:29:07,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 20:29:07,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:07,419 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-10-15 20:29:07,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025245853] [2022-10-15 20:29:07,420 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:07,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607964309] [2022-10-15 20:29:07,420 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607964309] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:07,420 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:07,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-15 20:29:07,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647696153] [2022-10-15 20:29:07,421 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:07,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 20:29:07,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:07,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 20:29:07,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-10-15 20:29:07,423 INFO L87 Difference]: Start difference. First operand 295 states and 362 transitions. Second operand has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:08,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:08,217 INFO L93 Difference]: Finished difference Result 816 states and 998 transitions. [2022-10-15 20:29:08,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 20:29:08,217 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-10-15 20:29:08,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:08,223 INFO L225 Difference]: With dead ends: 816 [2022-10-15 20:29:08,223 INFO L226 Difference]: Without dead ends: 559 [2022-10-15 20:29:08,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=362, Invalid=828, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 20:29:08,229 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 422 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:08,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 67 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:29:08,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2022-10-15 20:29:08,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 274. [2022-10-15 20:29:08,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 267 states have (on average 1.1835205992509363) internal successors, (316), 270 states have internal predecessors, (316), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:08,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 320 transitions. [2022-10-15 20:29:08,279 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 320 transitions. Word has length 34 [2022-10-15 20:29:08,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:08,280 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 320 transitions. [2022-10-15 20:29:08,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.076923076923077) internal successors, (40), 14 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:08,280 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2022-10-15 20:29:08,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 20:29:08,282 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:08,282 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:08,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:08,498 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 [2022-10-15 20:29:08,499 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:08,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:08,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1312474388, now seen corresponding path program 3 times [2022-10-15 20:29:08,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:08,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027436111] [2022-10-15 20:29:08,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:08,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:08,515 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:08,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981490346] [2022-10-15 20:29:08,516 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:29:08,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:08,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:08,517 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) [2022-10-15 20:29:08,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-15 20:29:08,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:29:08,571 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:29:08,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:29:08,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 20:29:08,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:08,798 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-15 20:29:08,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:08,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027436111] [2022-10-15 20:29:08,798 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:08,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981490346] [2022-10-15 20:29:08,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981490346] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:08,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:08,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-15 20:29:08,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072081023] [2022-10-15 20:29:08,800 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:08,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 20:29:08,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:08,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 20:29:08,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:29:08,801 INFO L87 Difference]: Start difference. First operand 274 states and 320 transitions. Second operand has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:09,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:09,071 INFO L93 Difference]: Finished difference Result 571 states and 661 transitions. [2022-10-15 20:29:09,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:29:09,072 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2022-10-15 20:29:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:09,075 INFO L225 Difference]: With dead ends: 571 [2022-10-15 20:29:09,076 INFO L226 Difference]: Without dead ends: 567 [2022-10-15 20:29:09,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-10-15 20:29:09,077 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 82 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:09,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:29:09,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2022-10-15 20:29:09,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 373. [2022-10-15 20:29:09,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 366 states have (on average 1.1530054644808743) internal successors, (422), 369 states have internal predecessors, (422), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 426 transitions. [2022-10-15 20:29:09,159 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 426 transitions. Word has length 44 [2022-10-15 20:29:09,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:09,159 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 426 transitions. [2022-10-15 20:29:09,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.714285714285714) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:09,160 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 426 transitions. [2022-10-15 20:29:09,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-15 20:29:09,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:09,161 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:09,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:09,374 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 [2022-10-15 20:29:09,374 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:09,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash -888680217, now seen corresponding path program 4 times [2022-10-15 20:29:09,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:09,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413934210] [2022-10-15 20:29:09,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:09,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:09,394 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:09,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1269156776] [2022-10-15 20:29:09,395 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 20:29:09,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:09,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:09,396 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) [2022-10-15 20:29:09,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-15 20:29:09,487 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 20:29:09,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:29:09,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-15 20:29:09,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:09,625 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 20:29:09,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:09,757 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-15 20:29:09,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:09,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413934210] [2022-10-15 20:29:09,757 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:09,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269156776] [2022-10-15 20:29:09,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269156776] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:09,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:09,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-10-15 20:29:09,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929591919] [2022-10-15 20:29:09,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:09,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 20:29:09,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:09,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 20:29:09,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-10-15 20:29:09,761 INFO L87 Difference]: Start difference. First operand 373 states and 426 transitions. Second operand has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:10,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:10,905 INFO L93 Difference]: Finished difference Result 1538 states and 1780 transitions. [2022-10-15 20:29:10,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-10-15 20:29:10,906 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 63 [2022-10-15 20:29:10,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:10,917 INFO L225 Difference]: With dead ends: 1538 [2022-10-15 20:29:10,917 INFO L226 Difference]: Without dead ends: 1536 [2022-10-15 20:29:10,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=532, Invalid=874, Unknown=0, NotChecked=0, Total=1406 [2022-10-15 20:29:10,920 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1191 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1191 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:10,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1191 Valid, 61 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 20:29:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-10-15 20:29:11,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 722. [2022-10-15 20:29:11,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 722 states, 715 states have (on average 1.172027972027972) internal successors, (838), 718 states have internal predecessors, (838), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 842 transitions. [2022-10-15 20:29:11,052 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 842 transitions. Word has length 63 [2022-10-15 20:29:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:11,054 INFO L495 AbstractCegarLoop]: Abstraction has 722 states and 842 transitions. [2022-10-15 20:29:11,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:11,055 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 842 transitions. [2022-10-15 20:29:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 20:29:11,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:11,057 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:11,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:11,272 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 [2022-10-15 20:29:11,273 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:11,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:11,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1380788791, now seen corresponding path program 1 times [2022-10-15 20:29:11,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:11,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003442000] [2022-10-15 20:29:11,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:11,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:11,292 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:11,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1434773451] [2022-10-15 20:29:11,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:11,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:11,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:11,295 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) [2022-10-15 20:29:11,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-15 20:29:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:29:11,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:29:11,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:11,503 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 184 proven. 57 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-15 20:29:11,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:11,602 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 159 proven. 82 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-10-15 20:29:11,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:11,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003442000] [2022-10-15 20:29:11,603 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:11,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434773451] [2022-10-15 20:29:11,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434773451] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:11,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:11,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-10-15 20:29:11,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938312591] [2022-10-15 20:29:11,604 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:11,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-15 20:29:11,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:11,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-15 20:29:11,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:29:11,606 INFO L87 Difference]: Start difference. First operand 722 states and 842 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:12,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:12,074 INFO L93 Difference]: Finished difference Result 932 states and 1065 transitions. [2022-10-15 20:29:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 20:29:12,075 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 75 [2022-10-15 20:29:12,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:12,080 INFO L225 Difference]: With dead ends: 932 [2022-10-15 20:29:12,080 INFO L226 Difference]: Without dead ends: 718 [2022-10-15 20:29:12,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 134 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-10-15 20:29:12,084 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 87 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:12,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 177 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:29:12,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2022-10-15 20:29:12,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 684. [2022-10-15 20:29:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 677 states have (on average 1.1432791728212703) internal successors, (774), 680 states have internal predecessors, (774), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:12,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 778 transitions. [2022-10-15 20:29:12,195 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 778 transitions. Word has length 75 [2022-10-15 20:29:12,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:12,196 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 778 transitions. [2022-10-15 20:29:12,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:29:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 778 transitions. [2022-10-15 20:29:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-10-15 20:29:12,198 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:12,198 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:12,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:12,412 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 [2022-10-15 20:29:12,412 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:12,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:12,414 INFO L85 PathProgramCache]: Analyzing trace with hash 641176167, now seen corresponding path program 5 times [2022-10-15 20:29:12,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:12,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620612256] [2022-10-15 20:29:12,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:12,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:12,447 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:12,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [396475965] [2022-10-15 20:29:12,448 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-15 20:29:12,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:12,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:12,450 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) [2022-10-15 20:29:12,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-15 20:29:13,905 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-10-15 20:29:13,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:29:13,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-15 20:29:13,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:14,287 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 96 proven. 271 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-15 20:29:14,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 390 backedges. 126 proven. 238 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-15 20:29:14,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:14,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620612256] [2022-10-15 20:29:14,537 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:14,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396475965] [2022-10-15 20:29:14,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396475965] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:14,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:14,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 28 [2022-10-15 20:29:14,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585487396] [2022-10-15 20:29:14,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:14,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-15 20:29:14,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:14,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-15 20:29:14,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=598, Unknown=0, NotChecked=0, Total=756 [2022-10-15 20:29:14,541 INFO L87 Difference]: Start difference. First operand 684 states and 778 transitions. Second operand has 28 states, 28 states have (on average 4.285714285714286) internal successors, (120), 28 states have internal predecessors, (120), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:16,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:16,611 INFO L93 Difference]: Finished difference Result 2351 states and 2620 transitions. [2022-10-15 20:29:16,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-10-15 20:29:16,611 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.285714285714286) internal successors, (120), 28 states have internal predecessors, (120), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 83 [2022-10-15 20:29:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:16,619 INFO L225 Difference]: With dead ends: 2351 [2022-10-15 20:29:16,620 INFO L226 Difference]: Without dead ends: 1594 [2022-10-15 20:29:16,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1654 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1023, Invalid=4233, Unknown=0, NotChecked=0, Total=5256 [2022-10-15 20:29:16,624 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 817 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:16,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [819 Valid, 261 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 20:29:16,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1594 states. [2022-10-15 20:29:16,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1594 to 1381. [2022-10-15 20:29:16,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1381 states, 1374 states have (on average 1.1098981077147017) internal successors, (1525), 1377 states have internal predecessors, (1525), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 20:29:16,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1529 transitions. [2022-10-15 20:29:16,837 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1529 transitions. Word has length 83 [2022-10-15 20:29:16,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:16,837 INFO L495 AbstractCegarLoop]: Abstraction has 1381 states and 1529 transitions. [2022-10-15 20:29:16,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.285714285714286) internal successors, (120), 28 states have internal predecessors, (120), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 20:29:16,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1529 transitions. [2022-10-15 20:29:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-10-15 20:29:16,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:29:16,840 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:29:16,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:17,049 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 [2022-10-15 20:29:17,050 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:29:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:29:17,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1974571714, now seen corresponding path program 6 times [2022-10-15 20:29:17,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:29:17,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838087125] [2022-10-15 20:29:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:29:17,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:29:17,069 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-15 20:29:17,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [607868542] [2022-10-15 20:29:17,069 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-15 20:29:17,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:29:17,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:29:17,071 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) [2022-10-15 20:29:17,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-15 20:29:17,142 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-10-15 20:29:17,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:29:17,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-15 20:29:17,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:29:17,433 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-10-15 20:29:17,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:29:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2022-10-15 20:29:17,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:29:17,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838087125] [2022-10-15 20:29:17,743 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-15 20:29:17,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607868542] [2022-10-15 20:29:17,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607868542] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:29:17,744 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-15 20:29:17,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-10-15 20:29:17,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781933942] [2022-10-15 20:29:17,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-15 20:29:17,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-15 20:29:17,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:29:17,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-15 20:29:17,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-10-15 20:29:17,746 INFO L87 Difference]: Start difference. First operand 1381 states and 1529 transitions. Second operand has 15 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-15 20:29:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:29:18,212 INFO L93 Difference]: Finished difference Result 1381 states and 1529 transitions. [2022-10-15 20:29:18,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 20:29:18,213 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 92 [2022-10-15 20:29:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:29:18,214 INFO L225 Difference]: With dead ends: 1381 [2022-10-15 20:29:18,214 INFO L226 Difference]: Without dead ends: 0 [2022-10-15 20:29:18,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-15 20:29:18,217 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 111 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:29:18,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 46 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:29:18,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-15 20:29:18,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-15 20:29:18,219 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) [2022-10-15 20:29:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-15 20:29:18,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 92 [2022-10-15 20:29:18,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:29:18,219 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-15 20:29:18,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 4.2) internal successors, (42), 13 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-10-15 20:29:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-15 20:29:18,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-15 20:29:18,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-10-15 20:29:18,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-10-15 20:29:18,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-10-15 20:29:18,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-10-15 20:29:18,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-10-15 20:29:18,225 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-10-15 20:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-10-15 20:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-10-15 20:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-10-15 20:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-10-15 20:29:18,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-10-15 20:29:18,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-10-15 20:29:18,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-15 20:29:18,442 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 [2022-10-15 20:29:18,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-15 20:29:52,625 WARN L233 SmtUtils]: Spent 34.17s on a formula simplification. DAG size of input: 581 DAG size of output: 524 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)