./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark03_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark03_linear.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 07:42:46,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 07:42:46,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 07:42:46,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 07:42:46,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 07:42:46,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 07:42:46,175 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 07:42:46,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 07:42:46,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 07:42:46,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 07:42:46,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 07:42:46,181 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 07:42:46,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 07:42:46,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 07:42:46,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 07:42:46,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 07:42:46,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 07:42:46,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 07:42:46,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 07:42:46,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 07:42:46,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 07:42:46,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 07:42:46,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 07:42:46,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 07:42:46,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 07:42:46,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 07:42:46,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 07:42:46,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 07:42:46,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 07:42:46,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 07:42:46,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 07:42:46,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 07:42:46,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 07:42:46,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 07:42:46,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 07:42:46,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 07:42:46,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 07:42:46,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 07:42:46,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 07:42:46,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 07:42:46,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 07:42:46,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 07:42:46,239 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 07:42:46,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 07:42:46,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 07:42:46,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 07:42:46,242 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 07:42:46,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 07:42:46,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 07:42:46,243 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 07:42:46,243 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 07:42:46,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 07:42:46,244 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 07:42:46,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 07:42:46,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 07:42:46,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 07:42:46,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 07:42:46,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 07:42:46,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 07:42:46,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 07:42:46,245 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 07:42:46,245 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 07:42:46,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 07:42:46,246 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 07:42:46,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 07:42:46,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 07:42:46,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 07:42:46,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 07:42:46,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:42:46,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 07:42:46,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 07:42:46,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 07:42:46,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 07:42:46,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 07:42:46,248 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 07:42:46,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 07:42:46,248 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 07:42:46,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 07:42:46,249 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 07:42:46,249 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b [2023-02-18 07:42:46,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 07:42:46,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 07:42:46,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 07:42:46,487 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 07:42:46,488 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 07:42:46,488 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2023-02-18 07:42:47,527 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 07:42:47,753 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 07:42:47,755 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2023-02-18 07:42:47,761 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e8bf511b/6b6461f9b99b46e1ae399e38fd80ca29/FLAG6d2587948 [2023-02-18 07:42:48,169 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e8bf511b/6b6461f9b99b46e1ae399e38fd80ca29 [2023-02-18 07:42:48,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 07:42:48,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 07:42:48,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 07:42:48,173 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 07:42:48,175 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 07:42:48,175 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,176 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679458a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48, skipping insertion in model container [2023-02-18 07:42:48,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 07:42:48,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 07:42:48,271 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark03_linear.i[868,881] [2023-02-18 07:42:48,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:42:48,286 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 07:42:48,294 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark03_linear.i[868,881] [2023-02-18 07:42:48,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:42:48,305 INFO L208 MainTranslator]: Completed translation [2023-02-18 07:42:48,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48 WrapperNode [2023-02-18 07:42:48,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 07:42:48,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 07:42:48,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 07:42:48,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 07:42:48,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,328 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-02-18 07:42:48,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 07:42:48,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 07:42:48,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 07:42:48,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 07:42:48,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,347 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 07:42:48,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 07:42:48,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 07:42:48,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 07:42:48,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (1/1) ... [2023-02-18 07:42:48,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:42:48,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:48,371 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) [2023-02-18 07:42:48,389 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 [2023-02-18 07:42:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 07:42:48,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 07:42:48,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 07:42:48,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 07:42:48,457 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 07:42:48,458 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 07:42:48,629 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 07:42:48,633 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 07:42:48,633 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 07:42:48,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:42:48 BoogieIcfgContainer [2023-02-18 07:42:48,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 07:42:48,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 07:42:48,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 07:42:48,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 07:42:48,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:42:48" (1/3) ... [2023-02-18 07:42:48,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6a27f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:42:48, skipping insertion in model container [2023-02-18 07:42:48,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:42:48" (2/3) ... [2023-02-18 07:42:48,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b6a27f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:42:48, skipping insertion in model container [2023-02-18 07:42:48,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:42:48" (3/3) ... [2023-02-18 07:42:48,655 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark03_linear.i [2023-02-18 07:42:48,667 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 07:42:48,680 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-02-18 07:42:48,723 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 07:42:48,728 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@2e399964, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 07:42:48,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-02-18 07:42:48,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:48,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 07:42:48,735 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:48,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 07:42:48,736 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-18 07:42:48,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:48,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908165831] [2023-02-18 07:42:48,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:48,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:48,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:48,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:48,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908165831] [2023-02-18 07:42:48,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908165831] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:48,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:48,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:42:48,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540216041] [2023-02-18 07:42:48,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:48,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:42:48,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:42:49,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 07:42:49,013 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,057 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2023-02-18 07:42:49,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:42:49,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 07:42:49,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,064 INFO L225 Difference]: With dead ends: 48 [2023-02-18 07:42:49,064 INFO L226 Difference]: Without dead ends: 28 [2023-02-18 07:42:49,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:42:49,074 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-18 07:42:49,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-02-18 07:42:49,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-18 07:42:49,103 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2023-02-18 07:42:49,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,105 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-18 07:42:49,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,105 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-18 07:42:49,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 07:42:49,106 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 07:42:49,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-18 07:42:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298198918] [2023-02-18 07:42:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298198918] [2023-02-18 07:42:49,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298198918] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:49,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:42:49,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340306807] [2023-02-18 07:42:49,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:42:49,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:42:49,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 07:42:49,167 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,187 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2023-02-18 07:42:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:42:49,187 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 07:42:49,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,188 INFO L225 Difference]: With dead ends: 32 [2023-02-18 07:42:49,188 INFO L226 Difference]: Without dead ends: 30 [2023-02-18 07:42:49,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:42:49,189 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-18 07:42:49,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-18 07:42:49,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 29 states have internal predecessors, (31), 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) [2023-02-18 07:42:49,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2023-02-18 07:42:49,193 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2023-02-18 07:42:49,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,194 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2023-02-18 07:42:49,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,194 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2023-02-18 07:42:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-18 07:42:49,194 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 07:42:49,195 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2023-02-18 07:42:49,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127130476] [2023-02-18 07:42:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127130476] [2023-02-18 07:42:49,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127130476] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:49,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 07:42:49,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817539818] [2023-02-18 07:42:49,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:42:49,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:42:49,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-18 07:42:49,277 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,323 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-02-18 07:42:49,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:42:49,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-18 07:42:49,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,325 INFO L225 Difference]: With dead ends: 33 [2023-02-18 07:42:49,325 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 07:42:49,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-18 07:42:49,326 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 4 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 88 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 07:42:49,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-18 07:42:49,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 30 states have internal predecessors, (32), 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) [2023-02-18 07:42:49,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2023-02-18 07:42:49,330 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2023-02-18 07:42:49,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,330 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-02-18 07:42:49,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,330 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2023-02-18 07:42:49,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-18 07:42:49,331 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 07:42:49,331 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,332 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2023-02-18 07:42:49,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046152976] [2023-02-18 07:42:49,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046152976] [2023-02-18 07:42:49,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046152976] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:49,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 07:42:49,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991135259] [2023-02-18 07:42:49,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:42:49,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:42:49,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 07:42:49,383 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,421 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2023-02-18 07:42:49,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:42:49,421 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-18 07:42:49,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,422 INFO L225 Difference]: With dead ends: 33 [2023-02-18 07:42:49,423 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 07:42:49,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-18 07:42:49,424 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 90 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 07:42:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-18 07:42:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-02-18 07:42:49,429 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 10 [2023-02-18 07:42:49,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,429 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-02-18 07:42:49,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-02-18 07:42:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 07:42:49,431 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 07:42:49,431 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1472776363, now seen corresponding path program 1 times [2023-02-18 07:42:49,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62599582] [2023-02-18 07:42:49,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62599582] [2023-02-18 07:42:49,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62599582] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:49,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 07:42:49,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472237970] [2023-02-18 07:42:49,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:42:49,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:42:49,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-18 07:42:49,483 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-02-18 07:42:49,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,521 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2023-02-18 07:42:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:42:49,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 07:42:49,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,522 INFO L225 Difference]: With dead ends: 35 [2023-02-18 07:42:49,522 INFO L226 Difference]: Without dead ends: 34 [2023-02-18 07:42:49,523 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-18 07:42:49,523 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 62 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-18 07:42:49,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-02-18 07:42:49,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 32 states have internal predecessors, (34), 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) [2023-02-18 07:42:49,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2023-02-18 07:42:49,527 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2023-02-18 07:42:49,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,527 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2023-02-18 07:42:49,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 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) [2023-02-18 07:42:49,528 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2023-02-18 07:42:49,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 07:42:49,528 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,528 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 07:42:49,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1588572941, now seen corresponding path program 1 times [2023-02-18 07:42:49,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181133782] [2023-02-18 07:42:49,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181133782] [2023-02-18 07:42:49,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181133782] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:49,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 07:42:49,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53157771] [2023-02-18 07:42:49,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:42:49,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:42:49,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-18 07:42:49,576 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-02-18 07:42:49,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,602 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2023-02-18 07:42:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:42:49,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-02-18 07:42:49,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,603 INFO L225 Difference]: With dead ends: 35 [2023-02-18 07:42:49,604 INFO L226 Difference]: Without dead ends: 34 [2023-02-18 07:42:49,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-18 07:42:49,609 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 66 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-18 07:42:49,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-18 07:42:49,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2023-02-18 07:42:49,622 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2023-02-18 07:42:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,623 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2023-02-18 07:42:49,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 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) [2023-02-18 07:42:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2023-02-18 07:42:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-18 07:42:49,624 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 07:42:49,625 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1905204139, now seen corresponding path program 1 times [2023-02-18 07:42:49,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566813975] [2023-02-18 07:42:49,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566813975] [2023-02-18 07:42:49,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566813975] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:49,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 07:42:49,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261151528] [2023-02-18 07:42:49,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 07:42:49,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 07:42:49,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-02-18 07:42:49,669 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-02-18 07:42:49,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,718 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2023-02-18 07:42:49,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 07:42:49,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-18 07:42:49,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,721 INFO L225 Difference]: With dead ends: 55 [2023-02-18 07:42:49,721 INFO L226 Difference]: Without dead ends: 54 [2023-02-18 07:42:49,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-02-18 07:42:49,724 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 23 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 84 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-18 07:42:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 36. [2023-02-18 07:42:49,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 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) [2023-02-18 07:42:49,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2023-02-18 07:42:49,730 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2023-02-18 07:42:49,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,731 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2023-02-18 07:42:49,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 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) [2023-02-18 07:42:49,731 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2023-02-18 07:42:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 07:42:49,732 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,732 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-18 07:42:49,733 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1068213904, now seen corresponding path program 1 times [2023-02-18 07:42:49,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671398759] [2023-02-18 07:42:49,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671398759] [2023-02-18 07:42:49,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671398759] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:49,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-18 07:42:49,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985318974] [2023-02-18 07:42:49,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 07:42:49,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 07:42:49,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-18 07:42:49,782 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-18 07:42:49,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:49,817 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2023-02-18 07:42:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 07:42:49,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-18 07:42:49,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:49,819 INFO L225 Difference]: With dead ends: 55 [2023-02-18 07:42:49,819 INFO L226 Difference]: Without dead ends: 54 [2023-02-18 07:42:49,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-02-18 07:42:49,821 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 25 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:49,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 76 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-18 07:42:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2023-02-18 07:42:49,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 36 states have internal predecessors, (39), 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) [2023-02-18 07:42:49,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2023-02-18 07:42:49,827 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 15 [2023-02-18 07:42:49,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:49,828 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2023-02-18 07:42:49,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-18 07:42:49,828 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2023-02-18 07:42:49,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-18 07:42:49,831 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:49,831 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:49,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-18 07:42:49,833 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:49,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:49,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1068218998, now seen corresponding path program 1 times [2023-02-18 07:42:49,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:49,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217965832] [2023-02-18 07:42:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:49,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,880 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:49,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217965832] [2023-02-18 07:42:49,881 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217965832] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:49,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741905712] [2023-02-18 07:42:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:49,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:49,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:49,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:49,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 07:42:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:49,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 07:42:49,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:49,985 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 07:42:49,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741905712] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:49,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 07:42:49,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-18 07:42:49,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742823772] [2023-02-18 07:42:49,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:49,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:42:49,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:42:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 07:42:49,987 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-02-18 07:42:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:50,008 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2023-02-18 07:42:50,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:42:50,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-02-18 07:42:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:50,010 INFO L225 Difference]: With dead ends: 37 [2023-02-18 07:42:50,010 INFO L226 Difference]: Without dead ends: 36 [2023-02-18 07:42:50,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-02-18 07:42:50,012 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 30 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:50,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 51 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:50,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-18 07:42:50,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-18 07:42:50,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 35 states have internal predecessors, (38), 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) [2023-02-18 07:42:50,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2023-02-18 07:42:50,015 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 15 [2023-02-18 07:42:50,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:50,016 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2023-02-18 07:42:50,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 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) [2023-02-18 07:42:50,016 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2023-02-18 07:42:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-18 07:42:50,017 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:50,017 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:50,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 07:42:50,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:50,224 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:50,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:50,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1244949380, now seen corresponding path program 1 times [2023-02-18 07:42:50,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:50,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754573059] [2023-02-18 07:42:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:50,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:50,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:50,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:50,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754573059] [2023-02-18 07:42:50,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754573059] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:50,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254535149] [2023-02-18 07:42:50,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:50,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:50,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:50,285 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:50,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 07:42:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:50,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 07:42:50,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:50,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:50,394 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:50,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254535149] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:50,394 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:50,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-18 07:42:50,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438483583] [2023-02-18 07:42:50,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:50,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 07:42:50,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:50,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 07:42:50,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-18 07:42:50,396 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 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) [2023-02-18 07:42:50,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:50,444 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2023-02-18 07:42:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 07:42:50,445 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-02-18 07:42:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:50,446 INFO L225 Difference]: With dead ends: 80 [2023-02-18 07:42:50,446 INFO L226 Difference]: Without dead ends: 79 [2023-02-18 07:42:50,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-02-18 07:42:50,448 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 57 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:50,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 89 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-02-18 07:42:50,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2023-02-18 07:42:50,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.537037037037037) internal successors, (83), 62 states have internal predecessors, (83), 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) [2023-02-18 07:42:50,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2023-02-18 07:42:50,456 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 16 [2023-02-18 07:42:50,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:50,456 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2023-02-18 07:42:50,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.272727272727273) internal successors, (36), 12 states have internal predecessors, (36), 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) [2023-02-18 07:42:50,456 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2023-02-18 07:42:50,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-18 07:42:50,457 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:50,457 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:50,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 07:42:50,658 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,SelfDestructingSolverStorable9 [2023-02-18 07:42:50,659 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:50,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash 61274936, now seen corresponding path program 1 times [2023-02-18 07:42:50,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:50,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104295193] [2023-02-18 07:42:50,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:50,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:50,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:50,693 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:50,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:50,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104295193] [2023-02-18 07:42:50,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104295193] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:50,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360416257] [2023-02-18 07:42:50,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:50,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:50,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:50,709 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:50,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 07:42:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:50,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 07:42:50,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:50,777 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:50,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 07:42:50,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360416257] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:50,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 07:42:50,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-18 07:42:50,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299536149] [2023-02-18 07:42:50,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:50,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:42:50,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:50,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:42:50,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-18 07:42:50,779 INFO L87 Difference]: Start difference. First operand 63 states and 83 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-02-18 07:42:50,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:50,799 INFO L93 Difference]: Finished difference Result 63 states and 83 transitions. [2023-02-18 07:42:50,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:42:50,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-18 07:42:50,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:50,800 INFO L225 Difference]: With dead ends: 63 [2023-02-18 07:42:50,800 INFO L226 Difference]: Without dead ends: 62 [2023-02-18 07:42:50,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-02-18 07:42:50,800 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:50,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 57 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-02-18 07:42:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-02-18 07:42:50,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 61 states have internal predecessors, (80), 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) [2023-02-18 07:42:50,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2023-02-18 07:42:50,809 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 17 [2023-02-18 07:42:50,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:50,810 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2023-02-18 07:42:50,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 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) [2023-02-18 07:42:50,811 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2023-02-18 07:42:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 07:42:50,811 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:50,811 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:50,816 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-18 07:42:51,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:51,016 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:51,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1899523070, now seen corresponding path program 1 times [2023-02-18 07:42:51,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:51,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220430533] [2023-02-18 07:42:51,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:51,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:51,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:51,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220430533] [2023-02-18 07:42:51,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220430533] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:51,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954054193] [2023-02-18 07:42:51,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:51,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:51,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:51,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:51,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 07:42:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:51,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 07:42:51,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:51,118 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:51,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:51,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954054193] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:51,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:51,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-18 07:42:51,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28003856] [2023-02-18 07:42:51,142 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:51,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 07:42:51,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:51,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 07:42:51,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-18 07:42:51,143 INFO L87 Difference]: Start difference. First operand 62 states and 80 transitions. Second operand has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 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) [2023-02-18 07:42:51,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:51,191 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2023-02-18 07:42:51,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-18 07:42:51,191 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-02-18 07:42:51,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:51,192 INFO L225 Difference]: With dead ends: 77 [2023-02-18 07:42:51,192 INFO L226 Difference]: Without dead ends: 76 [2023-02-18 07:42:51,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2023-02-18 07:42:51,193 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 41 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:51,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 99 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:51,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-02-18 07:42:51,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 64. [2023-02-18 07:42:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 56 states have (on average 1.4285714285714286) internal successors, (80), 63 states have internal predecessors, (80), 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) [2023-02-18 07:42:51,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2023-02-18 07:42:51,198 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 18 [2023-02-18 07:42:51,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:51,198 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2023-02-18 07:42:51,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 12 states have internal predecessors, (42), 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) [2023-02-18 07:42:51,198 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-02-18 07:42:51,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-18 07:42:51,199 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:51,199 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:51,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:51,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:51,419 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:51,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:51,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1244326918, now seen corresponding path program 1 times [2023-02-18 07:42:51,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:51,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690962543] [2023-02-18 07:42:51,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:51,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:51,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:51,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:51,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690962543] [2023-02-18 07:42:51,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690962543] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:51,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [365332227] [2023-02-18 07:42:51,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:51,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:51,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:51,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:51,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 07:42:51,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:51,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 07:42:51,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:51,640 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:51,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 07:42:51,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [365332227] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:51,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 07:42:51,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2023-02-18 07:42:51,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275244492] [2023-02-18 07:42:51,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:51,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 07:42:51,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:51,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 07:42:51,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-02-18 07:42:51,642 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 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) [2023-02-18 07:42:51,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:51,711 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2023-02-18 07:42:51,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 07:42:51,712 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-02-18 07:42:51,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:51,712 INFO L225 Difference]: With dead ends: 64 [2023-02-18 07:42:51,712 INFO L226 Difference]: Without dead ends: 63 [2023-02-18 07:42:51,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2023-02-18 07:42:51,713 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 63 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:51,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 82 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:51,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-18 07:42:51,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-18 07:42:51,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 56 states have (on average 1.375) internal successors, (77), 62 states have internal predecessors, (77), 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) [2023-02-18 07:42:51,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2023-02-18 07:42:51,715 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 19 [2023-02-18 07:42:51,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:51,715 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2023-02-18 07:42:51,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.375) internal successors, (19), 9 states have internal predecessors, (19), 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) [2023-02-18 07:42:51,716 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2023-02-18 07:42:51,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-18 07:42:51,716 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:51,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:51,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:51,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-18 07:42:51,921 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:51,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:51,921 INFO L85 PathProgramCache]: Analyzing trace with hash 80571264, now seen corresponding path program 1 times [2023-02-18 07:42:51,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:51,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534942636] [2023-02-18 07:42:51,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:51,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:51,978 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:51,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:51,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534942636] [2023-02-18 07:42:51,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534942636] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:51,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683473252] [2023-02-18 07:42:51,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:51,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:51,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:51,980 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:51,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 07:42:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:52,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 07:42:52,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:52,071 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:52,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683473252] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:52,117 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:52,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-02-18 07:42:52,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272226534] [2023-02-18 07:42:52,118 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:52,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-18 07:42:52,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:52,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-18 07:42:52,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-02-18 07:42:52,119 INFO L87 Difference]: Start difference. First operand 63 states and 77 transitions. Second operand has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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) [2023-02-18 07:42:52,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:52,204 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2023-02-18 07:42:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-18 07:42:52,204 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-02-18 07:42:52,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:52,205 INFO L225 Difference]: With dead ends: 74 [2023-02-18 07:42:52,205 INFO L226 Difference]: Without dead ends: 73 [2023-02-18 07:42:52,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=227, Invalid=703, Unknown=0, NotChecked=0, Total=930 [2023-02-18 07:42:52,206 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 89 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:52,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 180 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:52,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-18 07:42:52,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2023-02-18 07:42:52,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 64 states have internal predecessors, (77), 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) [2023-02-18 07:42:52,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2023-02-18 07:42:52,208 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 20 [2023-02-18 07:42:52,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:52,208 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2023-02-18 07:42:52,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 23 states have internal predecessors, (58), 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) [2023-02-18 07:42:52,209 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2023-02-18 07:42:52,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 07:42:52,209 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:52,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:52,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:52,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:52,414 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:52,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1797258052, now seen corresponding path program 1 times [2023-02-18 07:42:52,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:52,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707829181] [2023-02-18 07:42:52,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:52,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:52,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:52,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707829181] [2023-02-18 07:42:52,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707829181] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:52,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238932597] [2023-02-18 07:42:52,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:52,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:52,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:52,456 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:52,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 07:42:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:52,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 07:42:52,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:52,536 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:52,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 07:42:52,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238932597] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:52,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 07:42:52,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2023-02-18 07:42:52,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504870788] [2023-02-18 07:42:52,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:52,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-18 07:42:52,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:52,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-18 07:42:52,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-02-18 07:42:52,538 INFO L87 Difference]: Start difference. First operand 65 states and 77 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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) [2023-02-18 07:42:52,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:52,590 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2023-02-18 07:42:52,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 07:42:52,590 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-18 07:42:52,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:52,591 INFO L225 Difference]: With dead ends: 65 [2023-02-18 07:42:52,591 INFO L226 Difference]: Without dead ends: 63 [2023-02-18 07:42:52,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2023-02-18 07:42:52,592 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:52,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 68 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:52,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-18 07:42:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-18 07:42:52,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 62 states have internal predecessors, (71), 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) [2023-02-18 07:42:52,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2023-02-18 07:42:52,594 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 21 [2023-02-18 07:42:52,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:52,594 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2023-02-18 07:42:52,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 9 states have internal predecessors, (21), 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) [2023-02-18 07:42:52,594 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2023-02-18 07:42:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-18 07:42:52,595 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:52,595 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:52,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 07:42:52,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:52,800 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:52,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:52,801 INFO L85 PathProgramCache]: Analyzing trace with hash 119575298, now seen corresponding path program 1 times [2023-02-18 07:42:52,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:52,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689882567] [2023-02-18 07:42:52,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:52,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:52,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:52,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:52,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:52,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689882567] [2023-02-18 07:42:52,839 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689882567] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:52,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699204702] [2023-02-18 07:42:52,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:52,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:52,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:52,840 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:52,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 07:42:52,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:52,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 07:42:52,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:52,976 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:52,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:53,037 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:53,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699204702] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:53,037 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:53,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-02-18 07:42:53,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518111125] [2023-02-18 07:42:53,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:53,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-18 07:42:53,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:53,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-18 07:42:53,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-02-18 07:42:53,039 INFO L87 Difference]: Start difference. First operand 63 states and 71 transitions. Second operand has 23 states, 22 states have (on average 2.909090909090909) internal successors, (64), 23 states have internal predecessors, (64), 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) [2023-02-18 07:42:53,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:53,200 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2023-02-18 07:42:53,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-18 07:42:53,200 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.909090909090909) internal successors, (64), 23 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2023-02-18 07:42:53,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:53,201 INFO L225 Difference]: With dead ends: 118 [2023-02-18 07:42:53,201 INFO L226 Difference]: Without dead ends: 117 [2023-02-18 07:42:53,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2023-02-18 07:42:53,202 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 95 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:53,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 141 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:42:53,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-18 07:42:53,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2023-02-18 07:42:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 98 states have (on average 1.153061224489796) internal successors, (113), 102 states have internal predecessors, (113), 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) [2023-02-18 07:42:53,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2023-02-18 07:42:53,205 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 22 [2023-02-18 07:42:53,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:53,205 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2023-02-18 07:42:53,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.909090909090909) internal successors, (64), 23 states have internal predecessors, (64), 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) [2023-02-18 07:42:53,205 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2023-02-18 07:42:53,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-18 07:42:53,205 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:53,206 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:42:53,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:53,410 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,SelfDestructingSolverStorable15 [2023-02-18 07:42:53,410 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:53,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1739878945, now seen corresponding path program 1 times [2023-02-18 07:42:53,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:53,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358307700] [2023-02-18 07:42:53,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:53,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:53,461 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:53,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:53,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358307700] [2023-02-18 07:42:53,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358307700] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:53,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:53,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:42:53,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985098202] [2023-02-18 07:42:53,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:53,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 07:42:53,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:53,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 07:42:53,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:42:53,463 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-18 07:42:53,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:53,478 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions. [2023-02-18 07:42:53,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 07:42:53,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-18 07:42:53,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:53,479 INFO L225 Difference]: With dead ends: 161 [2023-02-18 07:42:53,479 INFO L226 Difference]: Without dead ends: 123 [2023-02-18 07:42:53,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:42:53,480 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:53,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:53,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-02-18 07:42:53,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2023-02-18 07:42:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 114 states have (on average 1.1403508771929824) internal successors, (130), 118 states have internal predecessors, (130), 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) [2023-02-18 07:42:53,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2023-02-18 07:42:53,484 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 25 [2023-02-18 07:42:53,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:53,484 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2023-02-18 07:42:53,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-02-18 07:42:53,484 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2023-02-18 07:42:53,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-18 07:42:53,485 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:53,485 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 07:42:53,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-18 07:42:53,485 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:53,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:53,486 INFO L85 PathProgramCache]: Analyzing trace with hash 979524861, now seen corresponding path program 1 times [2023-02-18 07:42:53,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:53,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685227936] [2023-02-18 07:42:53,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:53,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:53,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:53,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685227936] [2023-02-18 07:42:53,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685227936] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:53,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772712633] [2023-02-18 07:42:53,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:53,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:53,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:53,597 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:53,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 07:42:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:53,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-18 07:42:53,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:53,682 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:53,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:53,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772712633] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:53,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:53,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2023-02-18 07:42:53,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770729365] [2023-02-18 07:42:53,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:53,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-18 07:42:53,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:53,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-18 07:42:53,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2023-02-18 07:42:53,772 INFO L87 Difference]: Start difference. First operand 119 states and 130 transitions. Second operand has 28 states, 27 states have (on average 2.814814814814815) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:53,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:53,970 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2023-02-18 07:42:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-18 07:42:53,970 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.814814814814815) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-02-18 07:42:53,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:53,971 INFO L225 Difference]: With dead ends: 144 [2023-02-18 07:42:53,971 INFO L226 Difference]: Without dead ends: 142 [2023-02-18 07:42:53,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=1205, Unknown=0, NotChecked=0, Total=1640 [2023-02-18 07:42:53,972 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 119 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:53,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 173 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:42:53,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-02-18 07:42:53,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 109. [2023-02-18 07:42:53,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 104 states have (on average 1.125) internal successors, (117), 108 states have internal predecessors, (117), 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) [2023-02-18 07:42:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2023-02-18 07:42:53,975 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 27 [2023-02-18 07:42:53,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:53,975 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2023-02-18 07:42:53,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.814814814814815) internal successors, (76), 28 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:53,976 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2023-02-18 07:42:53,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-18 07:42:53,976 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:53,976 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-18 07:42:53,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:54,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 07:42:54,182 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:54,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:54,183 INFO L85 PathProgramCache]: Analyzing trace with hash -531953560, now seen corresponding path program 1 times [2023-02-18 07:42:54,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:54,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480446542] [2023-02-18 07:42:54,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:54,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:54,202 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-18 07:42:54,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:54,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480446542] [2023-02-18 07:42:54,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480446542] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:42:54,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:42:54,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:42:54,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059197949] [2023-02-18 07:42:54,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:42:54,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 07:42:54,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:54,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 07:42:54,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:42:54,205 INFO L87 Difference]: Start difference. First operand 109 states and 117 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:54,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:54,210 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2023-02-18 07:42:54,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 07:42:54,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-02-18 07:42:54,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:54,211 INFO L225 Difference]: With dead ends: 146 [2023-02-18 07:42:54,211 INFO L226 Difference]: Without dead ends: 106 [2023-02-18 07:42:54,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:42:54,212 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:54,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:42:54,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-02-18 07:42:54,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2023-02-18 07:42:54,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 97 states have (on average 1.1030927835051547) internal successors, (107), 101 states have internal predecessors, (107), 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) [2023-02-18 07:42:54,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2023-02-18 07:42:54,216 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2023-02-18 07:42:54,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:54,216 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2023-02-18 07:42:54,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:42:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2023-02-18 07:42:54,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-18 07:42:54,217 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:54,217 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 07:42:54,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-02-18 07:42:54,218 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:54,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:54,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1253571607, now seen corresponding path program 2 times [2023-02-18 07:42:54,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:54,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558676675] [2023-02-18 07:42:54,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:54,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:54,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:54,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558676675] [2023-02-18 07:42:54,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558676675] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:54,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305458427] [2023-02-18 07:42:54,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:42:54,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:54,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:54,327 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:54,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 07:42:54,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:42:54,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:42:54,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 07:42:54,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:54,433 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:54,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:54,518 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:54,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305458427] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:54,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:54,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-18 07:42:54,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969958007] [2023-02-18 07:42:54,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:54,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 07:42:54,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:54,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 07:42:54,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-18 07:42:54,520 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 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) [2023-02-18 07:42:54,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:54,642 INFO L93 Difference]: Finished difference Result 247 states and 278 transitions. [2023-02-18 07:42:54,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 07:42:54,642 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-02-18 07:42:54,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:54,643 INFO L225 Difference]: With dead ends: 247 [2023-02-18 07:42:54,643 INFO L226 Difference]: Without dead ends: 246 [2023-02-18 07:42:54,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 75 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2023-02-18 07:42:54,646 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 156 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:54,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 173 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:42:54,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-02-18 07:42:54,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 224. [2023-02-18 07:42:54,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.2146118721461188) internal successors, (266), 223 states have internal predecessors, (266), 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) [2023-02-18 07:42:54,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 266 transitions. [2023-02-18 07:42:54,657 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 266 transitions. Word has length 46 [2023-02-18 07:42:54,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:54,657 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 266 transitions. [2023-02-18 07:42:54,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.173913043478261) internal successors, (96), 24 states have internal predecessors, (96), 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) [2023-02-18 07:42:54,657 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 266 transitions. [2023-02-18 07:42:54,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-18 07:42:54,660 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:54,660 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2023-02-18 07:42:54,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:54,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:54,865 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:54,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:54,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1091348876, now seen corresponding path program 1 times [2023-02-18 07:42:54,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:54,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730597125] [2023-02-18 07:42:54,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:54,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:55,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:55,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730597125] [2023-02-18 07:42:55,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730597125] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:55,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704006883] [2023-02-18 07:42:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:55,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:55,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:55,034 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:55,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 07:42:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:55,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 07:42:55,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:55,280 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:55,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:55,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704006883] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:55,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:55,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2023-02-18 07:42:55,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297420810] [2023-02-18 07:42:55,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:55,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-18 07:42:55,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:55,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-18 07:42:55,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2023-02-18 07:42:55,548 INFO L87 Difference]: Start difference. First operand 224 states and 266 transitions. Second operand has 50 states, 49 states have (on average 2.8979591836734695) internal successors, (142), 50 states have internal predecessors, (142), 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) [2023-02-18 07:42:56,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:56,198 INFO L93 Difference]: Finished difference Result 239 states and 266 transitions. [2023-02-18 07:42:56,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 07:42:56,198 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.8979591836734695) internal successors, (142), 50 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-02-18 07:42:56,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:56,199 INFO L225 Difference]: With dead ends: 239 [2023-02-18 07:42:56,199 INFO L226 Difference]: Without dead ends: 238 [2023-02-18 07:42:56,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2293 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1498, Invalid=5308, Unknown=0, NotChecked=0, Total=6806 [2023-02-18 07:42:56,202 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 309 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:56,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 221 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 07:42:56,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-02-18 07:42:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 224. [2023-02-18 07:42:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 219 states have (on average 1.178082191780822) internal successors, (258), 223 states have internal predecessors, (258), 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) [2023-02-18 07:42:56,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 258 transitions. [2023-02-18 07:42:56,208 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 258 transitions. Word has length 48 [2023-02-18 07:42:56,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:56,208 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 258 transitions. [2023-02-18 07:42:56,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.8979591836734695) internal successors, (142), 50 states have internal predecessors, (142), 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) [2023-02-18 07:42:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 258 transitions. [2023-02-18 07:42:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-18 07:42:56,209 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:56,209 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 07:42:56,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-18 07:42:56,413 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,SelfDestructingSolverStorable20 [2023-02-18 07:42:56,414 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:56,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:56,414 INFO L85 PathProgramCache]: Analyzing trace with hash -2091469781, now seen corresponding path program 2 times [2023-02-18 07:42:56,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:56,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578700155] [2023-02-18 07:42:56,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:56,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:56,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:56,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:56,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578700155] [2023-02-18 07:42:56,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578700155] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:56,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851815435] [2023-02-18 07:42:56,495 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:42:56,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:56,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:56,509 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:56,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 07:42:56,547 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:42:56,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:42:56,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 07:42:56,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:56,587 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:56,587 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:56,688 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:56,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851815435] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:56,688 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:56,688 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-18 07:42:56,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507238441] [2023-02-18 07:42:56,688 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:56,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 07:42:56,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:56,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 07:42:56,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-18 07:42:56,689 INFO L87 Difference]: Start difference. First operand 224 states and 258 transitions. Second operand has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 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) [2023-02-18 07:42:56,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:56,829 INFO L93 Difference]: Finished difference Result 242 states and 264 transitions. [2023-02-18 07:42:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-18 07:42:56,831 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2023-02-18 07:42:56,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:56,831 INFO L225 Difference]: With dead ends: 242 [2023-02-18 07:42:56,832 INFO L226 Difference]: Without dead ends: 241 [2023-02-18 07:42:56,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 79 SyntacticMatches, 4 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2023-02-18 07:42:56,832 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 104 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:56,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 162 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:42:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-02-18 07:42:56,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 228. [2023-02-18 07:42:56,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.1300448430493273) internal successors, (252), 227 states have internal predecessors, (252), 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) [2023-02-18 07:42:56,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 252 transitions. [2023-02-18 07:42:56,838 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 252 transitions. Word has length 48 [2023-02-18 07:42:56,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:56,838 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 252 transitions. [2023-02-18 07:42:56,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.434782608695652) internal successors, (102), 24 states have internal predecessors, (102), 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) [2023-02-18 07:42:56,838 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 252 transitions. [2023-02-18 07:42:56,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-18 07:42:56,838 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:56,838 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 07:42:56,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:57,044 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,SelfDestructingSolverStorable21 [2023-02-18 07:42:57,044 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:57,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:57,044 INFO L85 PathProgramCache]: Analyzing trace with hash 142236781, now seen corresponding path program 2 times [2023-02-18 07:42:57,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:57,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837943079] [2023-02-18 07:42:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:57,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:57,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:57,218 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:57,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:57,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837943079] [2023-02-18 07:42:57,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837943079] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:57,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028948470] [2023-02-18 07:42:57,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:42:57,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:57,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:57,230 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:57,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 07:42:57,267 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:42:57,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:42:57,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 07:42:57,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:57,472 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:57,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:57,717 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:57,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028948470] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:57,717 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:57,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2023-02-18 07:42:57,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145749485] [2023-02-18 07:42:57,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:57,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-18 07:42:57,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:57,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-18 07:42:57,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2028, Unknown=0, NotChecked=0, Total=2450 [2023-02-18 07:42:57,719 INFO L87 Difference]: Start difference. First operand 228 states and 252 transitions. Second operand has 50 states, 49 states have (on average 3.020408163265306) internal successors, (148), 50 states have internal predecessors, (148), 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) [2023-02-18 07:42:58,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:58,155 INFO L93 Difference]: Finished difference Result 241 states and 258 transitions. [2023-02-18 07:42:58,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-02-18 07:42:58,156 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 3.020408163265306) internal successors, (148), 50 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2023-02-18 07:42:58,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:58,156 INFO L225 Difference]: With dead ends: 241 [2023-02-18 07:42:58,156 INFO L226 Difference]: Without dead ends: 240 [2023-02-18 07:42:58,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1685 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=985, Invalid=3845, Unknown=0, NotChecked=0, Total=4830 [2023-02-18 07:42:58,158 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 231 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:58,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 444 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:42:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-02-18 07:42:58,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2023-02-18 07:42:58,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 1.0837004405286343) internal successors, (246), 231 states have internal predecessors, (246), 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) [2023-02-18 07:42:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 246 transitions. [2023-02-18 07:42:58,163 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 246 transitions. Word has length 50 [2023-02-18 07:42:58,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:58,163 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 246 transitions. [2023-02-18 07:42:58,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 3.020408163265306) internal successors, (148), 50 states have internal predecessors, (148), 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) [2023-02-18 07:42:58,163 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 246 transitions. [2023-02-18 07:42:58,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-02-18 07:42:58,164 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:58,164 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2023-02-18 07:42:58,181 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-02-18 07:42:58,369 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,SelfDestructingSolverStorable22 [2023-02-18 07:42:58,369 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:58,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash -528001193, now seen corresponding path program 2 times [2023-02-18 07:42:58,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:58,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281548621] [2023-02-18 07:42:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:58,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:42:58,537 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:58,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:42:58,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281548621] [2023-02-18 07:42:58,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281548621] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:42:58,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029343480] [2023-02-18 07:42:58,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:42:58,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:58,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:42:58,544 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:42:58,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 07:42:58,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:42:58,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:42:58,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 07:42:58,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:42:58,748 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:58,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:42:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:42:58,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029343480] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:42:58,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:42:58,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2023-02-18 07:42:58,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130522648] [2023-02-18 07:42:58,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:42:58,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-02-18 07:42:58,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:42:58,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-02-18 07:42:58,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=2150, Unknown=0, NotChecked=0, Total=2652 [2023-02-18 07:42:58,958 INFO L87 Difference]: Start difference. First operand 232 states and 246 transitions. Second operand has 52 states, 51 states have (on average 2.9019607843137254) internal successors, (148), 52 states have internal predecessors, (148), 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) [2023-02-18 07:42:59,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:42:59,511 INFO L93 Difference]: Finished difference Result 234 states and 246 transitions. [2023-02-18 07:42:59,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-02-18 07:42:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.9019607843137254) internal successors, (148), 52 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2023-02-18 07:42:59,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:42:59,513 INFO L225 Difference]: With dead ends: 234 [2023-02-18 07:42:59,513 INFO L226 Difference]: Without dead ends: 233 [2023-02-18 07:42:59,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2199 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1431, Invalid=4731, Unknown=0, NotChecked=0, Total=6162 [2023-02-18 07:42:59,515 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 297 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 07:42:59,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 269 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 07:42:59,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-02-18 07:42:59,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 232. [2023-02-18 07:42:59,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 227 states have (on average 1.066079295154185) internal successors, (242), 231 states have internal predecessors, (242), 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) [2023-02-18 07:42:59,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 242 transitions. [2023-02-18 07:42:59,521 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 242 transitions. Word has length 51 [2023-02-18 07:42:59,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:42:59,521 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 242 transitions. [2023-02-18 07:42:59,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.9019607843137254) internal successors, (148), 52 states have internal predecessors, (148), 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) [2023-02-18 07:42:59,521 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 242 transitions. [2023-02-18 07:42:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-02-18 07:42:59,522 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:42:59,522 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1] [2023-02-18 07:42:59,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 07:42:59,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:42:59,727 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:42:59,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:42:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1952333931, now seen corresponding path program 2 times [2023-02-18 07:42:59,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:42:59,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122444679] [2023-02-18 07:42:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:42:59,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:42:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:00,119 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:00,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:00,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122444679] [2023-02-18 07:43:00,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122444679] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:00,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251341168] [2023-02-18 07:43:00,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:43:00,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:00,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:00,122 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:00,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 07:43:00,172 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:43:00,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:00,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-18 07:43:00,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:00,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:01,207 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:01,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251341168] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:01,207 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:01,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 85 [2023-02-18 07:43:01,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690053016] [2023-02-18 07:43:01,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:01,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2023-02-18 07:43:01,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:01,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2023-02-18 07:43:01,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1096, Invalid=6214, Unknown=0, NotChecked=0, Total=7310 [2023-02-18 07:43:01,211 INFO L87 Difference]: Start difference. First operand 232 states and 242 transitions. Second operand has 86 states, 85 states have (on average 3.223529411764706) internal successors, (274), 86 states have internal predecessors, (274), 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) [2023-02-18 07:43:03,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:43:03,136 INFO L93 Difference]: Finished difference Result 341 states and 357 transitions. [2023-02-18 07:43:03,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2023-02-18 07:43:03,137 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 3.223529411764706) internal successors, (274), 86 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2023-02-18 07:43:03,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:43:03,138 INFO L225 Difference]: With dead ends: 341 [2023-02-18 07:43:03,138 INFO L226 Difference]: Without dead ends: 340 [2023-02-18 07:43:03,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7720 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4460, Invalid=17296, Unknown=0, NotChecked=0, Total=21756 [2023-02-18 07:43:03,142 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 560 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 07:43:03,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 566 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 07:43:03,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-02-18 07:43:03,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 314. [2023-02-18 07:43:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 309 states have (on average 1.116504854368932) internal successors, (345), 313 states have internal predecessors, (345), 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) [2023-02-18 07:43:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 345 transitions. [2023-02-18 07:43:03,156 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 345 transitions. Word has length 92 [2023-02-18 07:43:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:43:03,157 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 345 transitions. [2023-02-18 07:43:03,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 3.223529411764706) internal successors, (274), 86 states have internal predecessors, (274), 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) [2023-02-18 07:43:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 345 transitions. [2023-02-18 07:43:03,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-02-18 07:43:03,161 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:43:03,161 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1] [2023-02-18 07:43:03,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-18 07:43:03,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:03,370 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:43:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:43:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash -2084404725, now seen corresponding path program 3 times [2023-02-18 07:43:03,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:43:03,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939167451] [2023-02-18 07:43:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:43:03,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:43:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:03,861 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:03,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:03,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939167451] [2023-02-18 07:43:03,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939167451] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:03,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990783264] [2023-02-18 07:43:03,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:43:03,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:03,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:03,864 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:03,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 07:43:03,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-18 07:43:03,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:03,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-18 07:43:03,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:04,524 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:04,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:05,093 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:05,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990783264] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:05,093 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:05,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 99 [2023-02-18 07:43:05,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427187554] [2023-02-18 07:43:05,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:05,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2023-02-18 07:43:05,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:05,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2023-02-18 07:43:05,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1614, Invalid=8286, Unknown=0, NotChecked=0, Total=9900 [2023-02-18 07:43:05,101 INFO L87 Difference]: Start difference. First operand 314 states and 345 transitions. Second operand has 100 states, 99 states have (on average 2.9494949494949494) internal successors, (292), 100 states have internal predecessors, (292), 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) [2023-02-18 07:43:07,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:43:07,432 INFO L93 Difference]: Finished difference Result 417 states and 437 transitions. [2023-02-18 07:43:07,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-02-18 07:43:07,433 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 2.9494949494949494) internal successors, (292), 100 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2023-02-18 07:43:07,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:43:07,434 INFO L225 Difference]: With dead ends: 417 [2023-02-18 07:43:07,434 INFO L226 Difference]: Without dead ends: 415 [2023-02-18 07:43:07,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10784 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=6071, Invalid=22659, Unknown=0, NotChecked=0, Total=28730 [2023-02-18 07:43:07,436 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1218 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 07:43:07,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 500 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 07:43:07,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-02-18 07:43:07,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 379. [2023-02-18 07:43:07,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 374 states have (on average 1.1310160427807487) internal successors, (423), 378 states have internal predecessors, (423), 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) [2023-02-18 07:43:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 423 transitions. [2023-02-18 07:43:07,445 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 423 transitions. Word has length 99 [2023-02-18 07:43:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:43:07,446 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 423 transitions. [2023-02-18 07:43:07,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 2.9494949494949494) internal successors, (292), 100 states have internal predecessors, (292), 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) [2023-02-18 07:43:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 423 transitions. [2023-02-18 07:43:07,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-02-18 07:43:07,447 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:43:07,447 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 07:43:07,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-18 07:43:07,652 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,SelfDestructingSolverStorable25 [2023-02-18 07:43:07,652 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:43:07,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:43:07,653 INFO L85 PathProgramCache]: Analyzing trace with hash -337724285, now seen corresponding path program 3 times [2023-02-18 07:43:07,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:43:07,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562821894] [2023-02-18 07:43:07,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:43:07,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:43:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:07,905 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:07,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:07,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562821894] [2023-02-18 07:43:07,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562821894] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:07,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1753919855] [2023-02-18 07:43:07,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:43:07,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:07,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:07,922 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:07,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 07:43:07,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-18 07:43:07,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:07,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 07:43:07,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:08,106 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 51 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-02-18 07:43:08,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 51 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-02-18 07:43:08,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1753919855] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:08,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:08,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 43 [2023-02-18 07:43:08,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267536083] [2023-02-18 07:43:08,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:08,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-02-18 07:43:08,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:08,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-02-18 07:43:08,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2023-02-18 07:43:08,334 INFO L87 Difference]: Start difference. First operand 379 states and 423 transitions. Second operand has 44 states, 43 states have (on average 4.511627906976744) internal successors, (194), 44 states have internal predecessors, (194), 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) [2023-02-18 07:43:09,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:43:09,217 INFO L93 Difference]: Finished difference Result 381 states and 423 transitions. [2023-02-18 07:43:09,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-02-18 07:43:09,217 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.511627906976744) internal successors, (194), 44 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2023-02-18 07:43:09,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:43:09,218 INFO L225 Difference]: With dead ends: 381 [2023-02-18 07:43:09,218 INFO L226 Difference]: Without dead ends: 380 [2023-02-18 07:43:09,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1954 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=2056, Invalid=6686, Unknown=0, NotChecked=0, Total=8742 [2023-02-18 07:43:09,220 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 427 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:43:09,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 213 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:43:09,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-02-18 07:43:09,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2023-02-18 07:43:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 374 states have (on average 1.0909090909090908) internal successors, (408), 377 states have internal predecessors, (408), 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) [2023-02-18 07:43:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 408 transitions. [2023-02-18 07:43:09,233 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 408 transitions. Word has length 106 [2023-02-18 07:43:09,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:43:09,233 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 408 transitions. [2023-02-18 07:43:09,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.511627906976744) internal successors, (194), 44 states have internal predecessors, (194), 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) [2023-02-18 07:43:09,233 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 408 transitions. [2023-02-18 07:43:09,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-02-18 07:43:09,234 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:43:09,234 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 07:43:09,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-18 07:43:09,439 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,SelfDestructingSolverStorable26 [2023-02-18 07:43:09,439 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:43:09,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:43:09,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1864478277, now seen corresponding path program 3 times [2023-02-18 07:43:09,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:43:09,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635079917] [2023-02-18 07:43:09,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:43:09,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:43:09,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:09,680 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:09,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:09,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635079917] [2023-02-18 07:43:09,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635079917] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:09,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553051494] [2023-02-18 07:43:09,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:43:09,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:09,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:09,682 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:09,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 07:43:09,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-18 07:43:09,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:09,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 07:43:09,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:09,865 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 251 proven. 51 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-02-18 07:43:09,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 251 proven. 51 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-02-18 07:43:10,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553051494] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:10,056 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:10,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 43 [2023-02-18 07:43:10,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053895729] [2023-02-18 07:43:10,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:10,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-02-18 07:43:10,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:10,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-02-18 07:43:10,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2023-02-18 07:43:10,057 INFO L87 Difference]: Start difference. First operand 378 states and 408 transitions. Second operand has 44 states, 43 states have (on average 4.558139534883721) internal successors, (196), 44 states have internal predecessors, (196), 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) [2023-02-18 07:43:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:43:10,931 INFO L93 Difference]: Finished difference Result 379 states and 408 transitions. [2023-02-18 07:43:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-02-18 07:43:10,931 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.558139534883721) internal successors, (196), 44 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2023-02-18 07:43:10,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:43:10,932 INFO L225 Difference]: With dead ends: 379 [2023-02-18 07:43:10,932 INFO L226 Difference]: Without dead ends: 378 [2023-02-18 07:43:10,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=2064, Invalid=6678, Unknown=0, NotChecked=0, Total=8742 [2023-02-18 07:43:10,933 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 367 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:43:10,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 145 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:43:10,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-02-18 07:43:10,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2023-02-18 07:43:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 374 states have (on average 1.0508021390374331) internal successors, (393), 376 states have internal predecessors, (393), 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) [2023-02-18 07:43:10,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 393 transitions. [2023-02-18 07:43:10,954 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 393 transitions. Word has length 108 [2023-02-18 07:43:10,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:43:10,954 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 393 transitions. [2023-02-18 07:43:10,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.558139534883721) internal successors, (196), 44 states have internal predecessors, (196), 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) [2023-02-18 07:43:10,954 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 393 transitions. [2023-02-18 07:43:10,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-02-18 07:43:10,955 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:43:10,955 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 07:43:10,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-18 07:43:11,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-18 07:43:11,160 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:43:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:43:11,161 INFO L85 PathProgramCache]: Analyzing trace with hash 762263559, now seen corresponding path program 3 times [2023-02-18 07:43:11,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:43:11,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459179111] [2023-02-18 07:43:11,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:43:11,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:43:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:11,597 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:11,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:11,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459179111] [2023-02-18 07:43:11,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459179111] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:11,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165638548] [2023-02-18 07:43:11,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:43:11,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:11,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:11,599 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:11,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-18 07:43:11,680 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 07:43:11,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:11,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjunts are in the unsatisfiable core [2023-02-18 07:43:11,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:12,158 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:12,158 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:12,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165638548] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:12,874 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:12,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 103 [2023-02-18 07:43:12,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588254174] [2023-02-18 07:43:12,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:12,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2023-02-18 07:43:12,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:12,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2023-02-18 07:43:12,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1547, Invalid=9165, Unknown=0, NotChecked=0, Total=10712 [2023-02-18 07:43:12,876 INFO L87 Difference]: Start difference. First operand 377 states and 393 transitions. Second operand has 104 states, 103 states have (on average 3.1844660194174756) internal successors, (328), 104 states have internal predecessors, (328), 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) [2023-02-18 07:43:14,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:43:14,335 INFO L93 Difference]: Finished difference Result 507 states and 536 transitions. [2023-02-18 07:43:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-02-18 07:43:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 104 states, 103 states have (on average 3.1844660194174756) internal successors, (328), 104 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-02-18 07:43:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:43:14,364 INFO L225 Difference]: With dead ends: 507 [2023-02-18 07:43:14,364 INFO L226 Difference]: Without dead ends: 506 [2023-02-18 07:43:14,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8162 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4093, Invalid=17663, Unknown=0, NotChecked=0, Total=21756 [2023-02-18 07:43:14,366 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1044 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 648 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 07:43:14,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 648 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 07:43:14,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-02-18 07:43:14,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 494. [2023-02-18 07:43:14,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 491 states have (on average 1.0427698574338085) internal successors, (512), 493 states have internal predecessors, (512), 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) [2023-02-18 07:43:14,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 512 transitions. [2023-02-18 07:43:14,389 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 512 transitions. Word has length 110 [2023-02-18 07:43:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:43:14,390 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 512 transitions. [2023-02-18 07:43:14,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 103 states have (on average 3.1844660194174756) internal successors, (328), 104 states have internal predecessors, (328), 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) [2023-02-18 07:43:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 512 transitions. [2023-02-18 07:43:14,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-02-18 07:43:14,395 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:43:14,395 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1] [2023-02-18 07:43:14,406 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-18 07:43:14,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-18 07:43:14,595 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:43:14,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:43:14,596 INFO L85 PathProgramCache]: Analyzing trace with hash 428779248, now seen corresponding path program 2 times [2023-02-18 07:43:14,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:43:14,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128088319] [2023-02-18 07:43:14,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:43:14,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:43:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:16,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:16,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:16,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128088319] [2023-02-18 07:43:16,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128088319] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:16,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697946091] [2023-02-18 07:43:16,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:43:16,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:16,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:16,301 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:16,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-18 07:43:16,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:43:16,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:16,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 65 conjunts are in the unsatisfiable core [2023-02-18 07:43:16,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:18,355 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:20,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697946091] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:20,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:20,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 193 [2023-02-18 07:43:20,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651731443] [2023-02-18 07:43:20,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:20,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2023-02-18 07:43:20,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:20,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2023-02-18 07:43:20,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5527, Invalid=31915, Unknown=0, NotChecked=0, Total=37442 [2023-02-18 07:43:20,514 INFO L87 Difference]: Start difference. First operand 494 states and 512 transitions. Second operand has 194 states, 193 states have (on average 2.9740932642487046) internal successors, (574), 194 states have internal predecessors, (574), 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) [2023-02-18 07:43:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:43:28,767 INFO L93 Difference]: Finished difference Result 732 states and 773 transitions. [2023-02-18 07:43:28,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-02-18 07:43:28,770 INFO L78 Accepts]: Start accepts. Automaton has has 194 states, 193 states have (on average 2.9740932642487046) internal successors, (574), 194 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2023-02-18 07:43:28,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:43:28,772 INFO L225 Difference]: With dead ends: 732 [2023-02-18 07:43:28,772 INFO L226 Difference]: Without dead ends: 731 [2023-02-18 07:43:28,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39545 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=19886, Invalid=80920, Unknown=0, NotChecked=0, Total=100806 [2023-02-18 07:43:28,776 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2178 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 07:43:28,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 838 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 07:43:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-02-18 07:43:28,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 706. [2023-02-18 07:43:28,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 703 states have (on average 1.0568990042674253) internal successors, (743), 705 states have internal predecessors, (743), 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) [2023-02-18 07:43:28,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 743 transitions. [2023-02-18 07:43:28,796 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 743 transitions. Word has length 192 [2023-02-18 07:43:28,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:43:28,796 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 743 transitions. [2023-02-18 07:43:28,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 194 states, 193 states have (on average 2.9740932642487046) internal successors, (574), 194 states have internal predecessors, (574), 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) [2023-02-18 07:43:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 743 transitions. [2023-02-18 07:43:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-02-18 07:43:28,798 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:43:28,798 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 1, 1, 1, 1] [2023-02-18 07:43:28,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-18 07:43:29,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:29,003 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:43:29,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:43:29,004 INFO L85 PathProgramCache]: Analyzing trace with hash 529903475, now seen corresponding path program 4 times [2023-02-18 07:43:29,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:43:29,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718624000] [2023-02-18 07:43:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:43:29,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:43:29,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:30,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:30,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718624000] [2023-02-18 07:43:30,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718624000] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:30,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128368966] [2023-02-18 07:43:30,569 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 07:43:30,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:30,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:30,570 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:30,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-18 07:43:30,658 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 07:43:30,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:30,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-18 07:43:30,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:32,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:34,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:34,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128368966] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:34,888 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:34,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2023-02-18 07:43:34,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078682191] [2023-02-18 07:43:34,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:34,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2023-02-18 07:43:34,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:34,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2023-02-18 07:43:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5662, Invalid=32558, Unknown=0, NotChecked=0, Total=38220 [2023-02-18 07:43:34,892 INFO L87 Difference]: Start difference. First operand 706 states and 743 transitions. Second operand has 196 states, 195 states have (on average 2.9743589743589745) internal successors, (580), 196 states have internal predecessors, (580), 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) [2023-02-18 07:43:44,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:43:44,697 INFO L93 Difference]: Finished difference Result 741 states and 759 transitions. [2023-02-18 07:43:44,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-02-18 07:43:44,698 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 2.9743589743589745) internal successors, (580), 196 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2023-02-18 07:43:44,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:43:44,700 INFO L225 Difference]: With dead ends: 741 [2023-02-18 07:43:44,700 INFO L226 Difference]: Without dead ends: 740 [2023-02-18 07:43:44,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 317 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40145 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=21187, Invalid=80255, Unknown=0, NotChecked=0, Total=101442 [2023-02-18 07:43:44,708 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2924 mSDsluCounter, 962 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 326 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2924 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 326 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 07:43:44,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2924 Valid, 973 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [326 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 07:43:44,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-02-18 07:43:44,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 709. [2023-02-18 07:43:44,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 706 states have (on average 1.0354107648725213) internal successors, (731), 708 states have internal predecessors, (731), 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) [2023-02-18 07:43:44,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 731 transitions. [2023-02-18 07:43:44,731 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 731 transitions. Word has length 195 [2023-02-18 07:43:44,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:43:44,732 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 731 transitions. [2023-02-18 07:43:44,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 2.9743589743589745) internal successors, (580), 196 states have internal predecessors, (580), 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) [2023-02-18 07:43:44,732 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 731 transitions. [2023-02-18 07:43:44,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-02-18 07:43:44,733 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:43:44,734 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-18 07:43:44,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-18 07:43:44,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:44,939 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:43:44,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:43:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1202689595, now seen corresponding path program 4 times [2023-02-18 07:43:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:43:44,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494600214] [2023-02-18 07:43:44,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:43:44,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:43:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:43:46,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:46,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:43:46,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494600214] [2023-02-18 07:43:46,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494600214] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:43:46,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493424090] [2023-02-18 07:43:46,891 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 07:43:46,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:43:46,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:43:46,894 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:43:46,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-18 07:43:47,018 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 07:43:47,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:43:47,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-18 07:43:47,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:43:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:48,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:43:51,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:43:51,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493424090] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:43:51,190 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:43:51,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 211 [2023-02-18 07:43:51,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993389500] [2023-02-18 07:43:51,191 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:43:51,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2023-02-18 07:43:51,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:43:51,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2023-02-18 07:43:51,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5849, Invalid=38883, Unknown=0, NotChecked=0, Total=44732 [2023-02-18 07:43:51,218 INFO L87 Difference]: Start difference. First operand 709 states and 731 transitions. Second operand has 212 states, 211 states have (on average 3.2606635071090047) internal successors, (688), 212 states have internal predecessors, (688), 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) [2023-02-18 07:44:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:44:00,005 INFO L93 Difference]: Finished difference Result 1051 states and 1114 transitions. [2023-02-18 07:44:00,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2023-02-18 07:44:00,005 INFO L78 Accepts]: Start accepts. Automaton has has 212 states, 211 states have (on average 3.2606635071090047) internal successors, (688), 212 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2023-02-18 07:44:00,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:44:00,008 INFO L225 Difference]: With dead ends: 1051 [2023-02-18 07:44:00,008 INFO L226 Difference]: Without dead ends: 1050 [2023-02-18 07:44:00,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35696 ImplicationChecksByTransitivity, 12.9s TimeCoverageRelationStatistics Valid=16681, Invalid=75431, Unknown=0, NotChecked=0, Total=92112 [2023-02-18 07:44:00,012 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 4202 mSDsluCounter, 1399 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4202 SdHoareTripleChecker+Valid, 1413 SdHoareTripleChecker+Invalid, 1112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 07:44:00,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4202 Valid, 1413 Invalid, 1112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 07:44:00,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2023-02-18 07:44:00,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1022. [2023-02-18 07:44:00,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 1019 states have (on average 1.0461236506378804) internal successors, (1066), 1021 states have internal predecessors, (1066), 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) [2023-02-18 07:44:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1066 transitions. [2023-02-18 07:44:00,041 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1066 transitions. Word has length 230 [2023-02-18 07:44:00,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:44:00,042 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1066 transitions. [2023-02-18 07:44:00,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 211 states have (on average 3.2606635071090047) internal successors, (688), 212 states have internal predecessors, (688), 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) [2023-02-18 07:44:00,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1066 transitions. [2023-02-18 07:44:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-02-18 07:44:00,045 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:44:00,045 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 32, 32, 1, 1, 1, 1] [2023-02-18 07:44:00,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2023-02-18 07:44:00,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:44:00,254 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:44:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:44:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash 504756947, now seen corresponding path program 3 times [2023-02-18 07:44:00,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:44:00,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412779065] [2023-02-18 07:44:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:44:00,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:44:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:44:03,666 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:44:03,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:44:03,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412779065] [2023-02-18 07:44:03,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412779065] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:44:03,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528077700] [2023-02-18 07:44:03,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:44:03,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:44:03,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:44:03,672 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:44:03,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-18 07:44:03,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2023-02-18 07:44:03,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:44:03,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 101 conjunts are in the unsatisfiable core [2023-02-18 07:44:03,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:44:07,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:44:07,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:44:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:44:12,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528077700] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:44:12,771 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:44:12,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 301 [2023-02-18 07:44:12,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316013894] [2023-02-18 07:44:12,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:44:12,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 302 states [2023-02-18 07:44:12,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:44:12,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 302 interpolants. [2023-02-18 07:44:12,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11524, Invalid=79378, Unknown=0, NotChecked=0, Total=90902 [2023-02-18 07:44:12,796 INFO L87 Difference]: Start difference. First operand 1022 states and 1066 transitions. Second operand has 302 states, 301 states have (on average 3.302325581395349) internal successors, (994), 302 states have internal predecessors, (994), 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) [2023-02-18 07:44:41,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:44:41,791 INFO L93 Difference]: Finished difference Result 1247 states and 1309 transitions. [2023-02-18 07:44:41,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. [2023-02-18 07:44:41,791 INFO L78 Accepts]: Start accepts. Automaton has has 302 states, 301 states have (on average 3.302325581395349) internal successors, (994), 302 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2023-02-18 07:44:41,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:44:41,798 INFO L225 Difference]: With dead ends: 1247 [2023-02-18 07:44:41,798 INFO L226 Difference]: Without dead ends: 1246 [2023-02-18 07:44:41,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 963 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 500 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96884 ImplicationChecksByTransitivity, 36.3s TimeCoverageRelationStatistics Valid=50474, Invalid=201028, Unknown=0, NotChecked=0, Total=251502 [2023-02-18 07:44:41,808 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3745 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3745 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 3076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 2184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-18 07:44:41,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3745 Valid, 1678 Invalid, 3076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 2184 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-18 07:44:41,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2023-02-18 07:44:41,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1224. [2023-02-18 07:44:41,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 1221 states have (on average 1.0425880425880425) internal successors, (1273), 1223 states have internal predecessors, (1273), 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) [2023-02-18 07:44:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1273 transitions. [2023-02-18 07:44:41,879 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1273 transitions. Word has length 332 [2023-02-18 07:44:41,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:44:41,880 INFO L495 AbstractCegarLoop]: Abstraction has 1224 states and 1273 transitions. [2023-02-18 07:44:41,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 302 states, 301 states have (on average 3.302325581395349) internal successors, (994), 302 states have internal predecessors, (994), 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) [2023-02-18 07:44:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1273 transitions. [2023-02-18 07:44:41,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-02-18 07:44:41,884 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:44:41,884 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 31, 1, 1, 1, 1] [2023-02-18 07:44:41,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2023-02-18 07:44:42,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:44:42,090 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:44:42,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:44:42,091 INFO L85 PathProgramCache]: Analyzing trace with hash 158296643, now seen corresponding path program 5 times [2023-02-18 07:44:42,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:44:42,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474080866] [2023-02-18 07:44:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:44:42,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:44:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:44:47,050 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:44:47,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:44:47,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474080866] [2023-02-18 07:44:47,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474080866] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:44:47,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738246087] [2023-02-18 07:44:47,051 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 07:44:47,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:44:47,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:44:47,052 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:44:47,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-02-18 07:44:47,259 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-18 07:44:47,260 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:44:47,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 130 conjunts are in the unsatisfiable core [2023-02-18 07:44:47,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:44:52,741 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:44:52,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:45:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:45:00,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738246087] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:45:00,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:45:00,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 387 [2023-02-18 07:45:00,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894328233] [2023-02-18 07:45:00,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:45:00,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 388 states [2023-02-18 07:45:00,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:45:00,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 388 interpolants. [2023-02-18 07:45:00,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21054, Invalid=129102, Unknown=0, NotChecked=0, Total=150156 [2023-02-18 07:45:00,741 INFO L87 Difference]: Start difference. First operand 1224 states and 1273 transitions. Second operand has 388 states, 387 states have (on average 2.987080103359173) internal successors, (1156), 388 states have internal predecessors, (1156), 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) [2023-02-18 07:45:58,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:45:58,230 INFO L93 Difference]: Finished difference Result 1471 states and 1535 transitions. [2023-02-18 07:45:58,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2023-02-18 07:45:58,232 INFO L78 Accepts]: Start accepts. Automaton has has 388 states, 387 states have (on average 2.987080103359173) internal successors, (1156), 388 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 387 [2023-02-18 07:45:58,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:45:58,235 INFO L225 Difference]: With dead ends: 1471 [2023-02-18 07:45:58,235 INFO L226 Difference]: Without dead ends: 1469 [2023-02-18 07:45:58,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1153 GetRequests, 515 SyntacticMatches, 1 SemanticMatches, 637 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164129 ImplicationChecksByTransitivity, 66.6s TimeCoverageRelationStatistics Valid=83819, Invalid=323863, Unknown=0, NotChecked=0, Total=407682 [2023-02-18 07:45:58,248 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12765 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 1734 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12765 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 3920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1734 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-02-18 07:45:58,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12765 Valid, 1767 Invalid, 3920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1734 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-02-18 07:45:58,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2023-02-18 07:45:58,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1433. [2023-02-18 07:45:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1430 states have (on average 1.03006993006993) internal successors, (1473), 1432 states have internal predecessors, (1473), 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) [2023-02-18 07:45:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1473 transitions. [2023-02-18 07:45:58,292 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1473 transitions. Word has length 387 [2023-02-18 07:45:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:45:58,293 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 1473 transitions. [2023-02-18 07:45:58,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 388 states, 387 states have (on average 2.987080103359173) internal successors, (1156), 388 states have internal predecessors, (1156), 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) [2023-02-18 07:45:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1473 transitions. [2023-02-18 07:45:58,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2023-02-18 07:45:58,296 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:45:58,296 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2023-02-18 07:45:58,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2023-02-18 07:45:58,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:45:58,502 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:45:58,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:45:58,502 INFO L85 PathProgramCache]: Analyzing trace with hash -813633885, now seen corresponding path program 5 times [2023-02-18 07:45:58,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:45:58,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105767038] [2023-02-18 07:45:58,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:45:58,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:45:58,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:46:04,743 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:46:04,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:46:04,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105767038] [2023-02-18 07:46:04,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105767038] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:46:04,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753723755] [2023-02-18 07:46:04,744 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 07:46:04,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:46:04,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:46:04,745 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:46:04,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-02-18 07:46:05,063 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 07:46:05,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:46:05,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 143 conjunts are in the unsatisfiable core [2023-02-18 07:46:05,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:46:13,155 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:46:13,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:46:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:46:24,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753723755] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:46:24,618 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:46:24,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 427 [2023-02-18 07:46:24,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271280493] [2023-02-18 07:46:24,622 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:46:24,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 428 states [2023-02-18 07:46:24,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:46:24,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 428 interpolants. [2023-02-18 07:46:24,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22661, Invalid=160095, Unknown=0, NotChecked=0, Total=182756 [2023-02-18 07:46:24,640 INFO L87 Difference]: Start difference. First operand 1433 states and 1473 transitions. Second operand has 428 states, 427 states have (on average 3.297423887587822) internal successors, (1408), 428 states have internal predecessors, (1408), 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) [2023-02-18 07:47:20,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:47:20,908 INFO L93 Difference]: Finished difference Result 2139 states and 2264 transitions. [2023-02-18 07:47:20,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states. [2023-02-18 07:47:20,909 INFO L78 Accepts]: Start accepts. Automaton has has 428 states, 427 states have (on average 3.297423887587822) internal successors, (1408), 428 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 470 [2023-02-18 07:47:20,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:47:20,926 INFO L225 Difference]: With dead ends: 2139 [2023-02-18 07:47:20,934 INFO L226 Difference]: Without dead ends: 2138 [2023-02-18 07:47:20,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1269 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 614 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149084 ImplicationChecksByTransitivity, 71.9s TimeCoverageRelationStatistics Valid=67345, Invalid=311495, Unknown=0, NotChecked=0, Total=378840 [2023-02-18 07:47:20,946 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 15013 mSDsluCounter, 2797 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 976 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15013 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 2795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 976 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-18 07:47:20,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15013 Valid, 2811 Invalid, 2795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [976 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-18 07:47:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2138 states. [2023-02-18 07:47:21,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2138 to 2078. [2023-02-18 07:47:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2078 states, 2075 states have (on average 1.0448192771084337) internal successors, (2168), 2077 states have internal predecessors, (2168), 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) [2023-02-18 07:47:21,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2078 states to 2078 states and 2168 transitions. [2023-02-18 07:47:21,013 INFO L78 Accepts]: Start accepts. Automaton has 2078 states and 2168 transitions. Word has length 470 [2023-02-18 07:47:21,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:47:21,013 INFO L495 AbstractCegarLoop]: Abstraction has 2078 states and 2168 transitions. [2023-02-18 07:47:21,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 428 states, 427 states have (on average 3.297423887587822) internal successors, (1408), 428 states have internal predecessors, (1408), 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) [2023-02-18 07:47:21,014 INFO L276 IsEmpty]: Start isEmpty. Operand 2078 states and 2168 transitions. [2023-02-18 07:47:21,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2023-02-18 07:47:21,018 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:47:21,018 INFO L195 NwaCegarLoop]: trace histogram [67, 67, 67, 67, 67, 67, 67, 67, 66, 66, 1, 1, 1, 1] [2023-02-18 07:47:21,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-02-18 07:47:21,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2023-02-18 07:47:21,225 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:47:21,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:47:21,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1088736785, now seen corresponding path program 4 times [2023-02-18 07:47:21,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:47:21,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284354886] [2023-02-18 07:47:21,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:47:21,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:47:21,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:47:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 22044 backedges. 0 proven. 22044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:47:35,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:47:35,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284354886] [2023-02-18 07:47:35,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284354886] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:47:35,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474258779] [2023-02-18 07:47:35,477 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 07:47:35,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:47:35,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:47:35,478 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:47:35,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-02-18 07:47:35,710 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 07:47:35,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:47:35,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1574 conjuncts, 203 conjunts are in the unsatisfiable core [2023-02-18 07:47:35,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:47:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 22044 backedges. 0 proven. 22044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:47:50,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:13,212 INFO L134 CoverageAnalysis]: Checked inductivity of 22044 backedges. 0 proven. 22044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:13,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474258779] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:13,212 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:13,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [203, 203, 203] total 607 [2023-02-18 07:48:13,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633706256] [2023-02-18 07:48:13,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:13,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 608 states [2023-02-18 07:48:13,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:13,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 608 interpolants. [2023-02-18 07:48:13,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45031, Invalid=324025, Unknown=0, NotChecked=0, Total=369056 [2023-02-18 07:48:13,242 INFO L87 Difference]: Start difference. First operand 2078 states and 2168 transitions. Second operand has 608 states, 607 states have (on average 3.3179571663920924) internal successors, (2014), 608 states have internal predecessors, (2014), 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) [2023-02-18 07:51:26,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:51:26,091 INFO L93 Difference]: Finished difference Result 2525 states and 2651 transitions. [2023-02-18 07:51:26,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 545 states. [2023-02-18 07:51:26,092 INFO L78 Accepts]: Start accepts. Automaton has has 608 states, 607 states have (on average 3.3179571663920924) internal successors, (2014), 608 states have internal predecessors, (2014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 672 [2023-02-18 07:51:26,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:51:26,098 INFO L225 Difference]: With dead ends: 2525 [2023-02-18 07:51:26,098 INFO L226 Difference]: Without dead ends: 2524 [2023-02-18 07:51:26,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1953 GetRequests, 939 SyntacticMatches, 0 SemanticMatches, 1014 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402084 ImplicationChecksByTransitivity, 214.3s TimeCoverageRelationStatistics Valid=205575, Invalid=825665, Unknown=0, NotChecked=0, Total=1031240 [2023-02-18 07:51:26,143 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 14477 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 4355 mSolverCounterSat, 3503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14477 SdHoareTripleChecker+Valid, 3343 SdHoareTripleChecker+Invalid, 7858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3503 IncrementalHoareTripleChecker+Valid, 4355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-02-18 07:51:26,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14477 Valid, 3343 Invalid, 7858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3503 Valid, 4355 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-02-18 07:51:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2524 states. [2023-02-18 07:51:26,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2524 to 2480. [2023-02-18 07:51:26,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2480 states, 2477 states have (on average 1.0411788453774729) internal successors, (2579), 2479 states have internal predecessors, (2579), 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) [2023-02-18 07:51:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2480 states to 2480 states and 2579 transitions. [2023-02-18 07:51:26,235 INFO L78 Accepts]: Start accepts. Automaton has 2480 states and 2579 transitions. Word has length 672 [2023-02-18 07:51:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:51:26,235 INFO L495 AbstractCegarLoop]: Abstraction has 2480 states and 2579 transitions. [2023-02-18 07:51:26,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 608 states, 607 states have (on average 3.3179571663920924) internal successors, (2014), 608 states have internal predecessors, (2014), 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) [2023-02-18 07:51:26,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2480 states and 2579 transitions. [2023-02-18 07:51:26,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 772 [2023-02-18 07:51:26,240 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:51:26,241 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 63, 1, 1, 1, 1] [2023-02-18 07:51:26,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-02-18 07:51:26,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2023-02-18 07:51:26,447 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-18 07:51:26,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:51:26,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1947181085, now seen corresponding path program 6 times [2023-02-18 07:51:26,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:51:26,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510450250] [2023-02-18 07:51:26,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:51:26,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:51:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:51:50,819 INFO L134 CoverageAnalysis]: Checked inductivity of 24192 backedges. 0 proven. 24192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:51:50,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:51:50,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510450250] [2023-02-18 07:51:50,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510450250] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:51:50,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42300264] [2023-02-18 07:51:50,819 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 07:51:50,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:51:50,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:51:50,821 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:51:50,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-02-18 07:51:51,765 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-18 07:51:51,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:51:51,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 258 conjunts are in the unsatisfiable core [2023-02-18 07:51:51,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:52:13,641 INFO L134 CoverageAnalysis]: Checked inductivity of 24192 backedges. 0 proven. 24192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:52:13,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:52:43,774 INFO L134 CoverageAnalysis]: Checked inductivity of 24192 backedges. 0 proven. 24192 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:52:43,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42300264] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:52:43,774 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:52:43,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [258, 258, 258] total 771 [2023-02-18 07:52:43,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594113526] [2023-02-18 07:52:43,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:52:43,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 772 states [2023-02-18 07:52:43,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:52:43,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 772 interpolants. [2023-02-18 07:52:43,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81022, Invalid=514190, Unknown=0, NotChecked=0, Total=595212 [2023-02-18 07:52:43,815 INFO L87 Difference]: Start difference. First operand 2480 states and 2579 transitions. Second operand has 772 states, 771 states have (on average 2.993514915693904) internal successors, (2308), 772 states have internal predecessors, (2308), 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)