./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 [2023-02-17 03:45:46,127 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 03:45:46,129 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 03:45:46,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 03:45:46,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 03:45:46,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 03:45:46,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 03:45:46,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 03:45:46,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 03:45:46,175 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 03:45:46,176 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 03:45:46,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 03:45:46,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 03:45:46,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 03:45:46,181 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 03:45:46,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 03:45:46,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 03:45:46,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 03:45:46,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 03:45:46,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 03:45:46,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 03:45:46,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 03:45:46,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 03:45:46,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 03:45:46,194 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 03:45:46,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 03:45:46,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 03:45:46,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 03:45:46,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 03:45:46,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 03:45:46,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 03:45:46,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 03:45:46,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 03:45:46,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 03:45:46,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 03:45:46,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 03:45:46,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 03:45:46,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 03:45:46,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 03:45:46,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 03:45:46,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 03:45:46,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-17 03:45:46,222 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 03:45:46,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 03:45:46,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 03:45:46,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 03:45:46,225 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 03:45:46,225 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 03:45:46,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 03:45:46,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 03:45:46,225 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 03:45:46,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 03:45:46,226 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 03:45:46,226 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-17 03:45:46,227 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 03:45:46,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 03:45:46,228 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 03:45:46,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 03:45:46,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 03:45:46,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 03:45:46,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 03:45:46,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 03:45:46,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 03:45:46,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 03:45:46,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 03:45:46,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 03:45:46,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 03:45:46,230 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 03:45:46,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 03:45:46,230 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 03:45:46,230 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 03:45:46,230 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 03:45:46,230 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b [2023-02-17 03:45:46,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 03:45:46,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 03:45:46,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 03:45:46,448 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 03:45:46,449 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 03:45:46,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2023-02-17 03:45:47,516 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 03:45:47,742 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 03:45:47,742 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2023-02-17 03:45:47,747 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1cc9850/e86053d2359c42e68072c1e0e90ed7c7/FLAG4eca1c646 [2023-02-17 03:45:47,764 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd1cc9850/e86053d2359c42e68072c1e0e90ed7c7 [2023-02-17 03:45:47,766 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 03:45:47,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 03:45:47,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 03:45:47,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 03:45:47,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 03:45:47,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c90038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47, skipping insertion in model container [2023-02-17 03:45:47,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 03:45:47,794 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 03:45:47,888 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] [2023-02-17 03:45:47,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 03:45:47,908 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 03:45:47,920 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] [2023-02-17 03:45:47,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 03:45:47,937 INFO L208 MainTranslator]: Completed translation [2023-02-17 03:45:47,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47 WrapperNode [2023-02-17 03:45:47,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 03:45:47,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 03:45:47,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 03:45:47,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 03:45:47,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,966 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2023-02-17 03:45:47,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 03:45:47,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 03:45:47,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 03:45:47,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 03:45:47,974 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,997 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:47,999 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 03:45:48,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 03:45:48,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 03:45:48,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 03:45:48,002 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (1/1) ... [2023-02-17 03:45:48,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 03:45:48,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:48,026 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) [2023-02-17 03:45:48,032 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 [2023-02-17 03:45:48,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 03:45:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 03:45:48,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 03:45:48,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 03:45:48,103 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 03:45:48,104 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 03:45:48,251 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 03:45:48,255 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 03:45:48,272 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 03:45:48,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 03:45:48 BoogieIcfgContainer [2023-02-17 03:45:48,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 03:45:48,276 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 03:45:48,276 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 03:45:48,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 03:45:48,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 03:45:47" (1/3) ... [2023-02-17 03:45:48,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b50f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 03:45:48, skipping insertion in model container [2023-02-17 03:45:48,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 03:45:47" (2/3) ... [2023-02-17 03:45:48,280 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b50f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 03:45:48, skipping insertion in model container [2023-02-17 03:45:48,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 03:45:48" (3/3) ... [2023-02-17 03:45:48,281 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark03_linear.i [2023-02-17 03:45:48,292 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 03:45:48,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-02-17 03:45:48,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 03:45:48,329 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;@37051a36, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 03:45:48,329 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-02-17 03:45:48,346 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) [2023-02-17 03:45:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-17 03:45:48,351 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:48,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-17 03:45:48,352 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)] === [2023-02-17 03:45:48,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:48,360 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-17 03:45:48,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:48,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690339489] [2023-02-17 03:45:48,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:48,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:48,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:48,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:48,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:48,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690339489] [2023-02-17 03:45:48,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690339489] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:48,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:48,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:45:48,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430112783] [2023-02-17 03:45:48,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:48,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 03:45:48,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:48,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 03:45:48,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 03:45:48,585 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) [2023-02-17 03:45:48,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:48,656 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2023-02-17 03:45:48,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 03:45:48,658 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 [2023-02-17 03:45:48,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:48,663 INFO L225 Difference]: With dead ends: 48 [2023-02-17 03:45:48,663 INFO L226 Difference]: Without dead ends: 28 [2023-02-17 03:45:48,665 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 [2023-02-17 03:45:48,668 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 [2023-02-17 03:45:48,669 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] [2023-02-17 03:45:48,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-02-17 03:45:48,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-02-17 03:45:48,695 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) [2023-02-17 03:45:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-17 03:45:48,700 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2023-02-17 03:45:48,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:48,701 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-17 03:45:48,701 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) [2023-02-17 03:45:48,701 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-17 03:45:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-17 03:45:48,702 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:48,702 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:48,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 03:45:48,703 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)] === [2023-02-17 03:45:48,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:48,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-17 03:45:48,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:48,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332065750] [2023-02-17 03:45:48,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:48,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:48,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:48,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:48,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332065750] [2023-02-17 03:45:48,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332065750] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:48,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:48,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:45:48,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431051834] [2023-02-17 03:45:48,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:48,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 03:45:48,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:48,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 03:45:48,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 03:45:48,790 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) [2023-02-17 03:45:48,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:48,826 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2023-02-17 03:45:48,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 03:45:48,827 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 [2023-02-17 03:45:48,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:48,829 INFO L225 Difference]: With dead ends: 32 [2023-02-17 03:45:48,829 INFO L226 Difference]: Without dead ends: 30 [2023-02-17 03:45:48,832 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 [2023-02-17 03:45:48,835 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 [2023-02-17 03:45:48,836 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] [2023-02-17 03:45:48,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-02-17 03:45:48,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-02-17 03:45:48,842 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) [2023-02-17 03:45:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2023-02-17 03:45:48,843 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2023-02-17 03:45:48,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:48,844 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2023-02-17 03:45:48,845 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) [2023-02-17 03:45:48,846 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2023-02-17 03:45:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-17 03:45:48,847 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:48,847 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:48,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-17 03:45:48,848 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)] === [2023-02-17 03:45:48,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:48,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2023-02-17 03:45:48,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:48,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330598571] [2023-02-17 03:45:48,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:48,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:48,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:48,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:48,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330598571] [2023-02-17 03:45:48,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330598571] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:48,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:48,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 03:45:48,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057475082] [2023-02-17 03:45:48,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:48,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:45:48,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:48,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:45:48,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:45:48,922 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) [2023-02-17 03:45:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:48,959 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2023-02-17 03:45:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:45:48,960 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 [2023-02-17 03:45:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:48,960 INFO L225 Difference]: With dead ends: 33 [2023-02-17 03:45:48,960 INFO L226 Difference]: Without dead ends: 32 [2023-02-17 03:45:48,961 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 [2023-02-17 03:45:48,962 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 [2023-02-17 03:45:48,962 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] [2023-02-17 03:45:48,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-17 03:45:48,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-17 03:45:48,965 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) [2023-02-17 03:45:48,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2023-02-17 03:45:48,965 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2023-02-17 03:45:48,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:48,966 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-02-17 03:45:48,966 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) [2023-02-17 03:45:48,966 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2023-02-17 03:45:48,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-17 03:45:48,967 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:48,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:48,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-17 03:45:48,968 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)] === [2023-02-17 03:45:48,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:48,969 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2023-02-17 03:45:48,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:48,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141747882] [2023-02-17 03:45:48,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:48,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:48,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:49,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:49,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:49,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141747882] [2023-02-17 03:45:49,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141747882] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:49,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:49,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 03:45:49,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817553520] [2023-02-17 03:45:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:49,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:45:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:49,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:45:49,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:45:49,030 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) [2023-02-17 03:45:49,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:49,073 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2023-02-17 03:45:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:45:49,073 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 [2023-02-17 03:45:49,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:49,074 INFO L225 Difference]: With dead ends: 33 [2023-02-17 03:45:49,074 INFO L226 Difference]: Without dead ends: 32 [2023-02-17 03:45:49,074 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 [2023-02-17 03:45:49,075 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 [2023-02-17 03:45:49,075 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] [2023-02-17 03:45:49,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-17 03:45:49,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-17 03:45:49,082 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) [2023-02-17 03:45:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2023-02-17 03:45:49,082 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 10 [2023-02-17 03:45:49,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:49,083 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2023-02-17 03:45:49,083 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) [2023-02-17 03:45:49,083 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2023-02-17 03:45:49,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-17 03:45:49,083 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:49,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:49,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-17 03:45:49,084 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)] === [2023-02-17 03:45:49,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:49,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1472776363, now seen corresponding path program 1 times [2023-02-17 03:45:49,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:49,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74712540] [2023-02-17 03:45:49,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:49,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:49,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:49,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:49,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74712540] [2023-02-17 03:45:49,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74712540] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:49,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:49,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 03:45:49,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345176751] [2023-02-17 03:45:49,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:49,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:45:49,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:49,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:45:49,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:45:49,133 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) [2023-02-17 03:45:49,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:49,185 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2023-02-17 03:45:49,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:45:49,186 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 [2023-02-17 03:45:49,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:49,186 INFO L225 Difference]: With dead ends: 35 [2023-02-17 03:45:49,186 INFO L226 Difference]: Without dead ends: 34 [2023-02-17 03:45:49,187 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 [2023-02-17 03:45:49,187 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 [2023-02-17 03:45:49,188 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] [2023-02-17 03:45:49,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-17 03:45:49,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2023-02-17 03:45:49,190 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) [2023-02-17 03:45:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2023-02-17 03:45:49,191 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2023-02-17 03:45:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:49,191 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2023-02-17 03:45:49,191 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) [2023-02-17 03:45:49,191 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2023-02-17 03:45:49,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-17 03:45:49,191 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:49,192 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:49,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-17 03:45:49,192 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)] === [2023-02-17 03:45:49,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:49,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1588572941, now seen corresponding path program 1 times [2023-02-17 03:45:49,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:49,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664429951] [2023-02-17 03:45:49,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:49,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:49,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:49,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:49,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664429951] [2023-02-17 03:45:49,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664429951] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:49,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:49,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-17 03:45:49,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62884667] [2023-02-17 03:45:49,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:49,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:45:49,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:49,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:45:49,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-17 03:45:49,272 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) [2023-02-17 03:45:49,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:49,313 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2023-02-17 03:45:49,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:45:49,314 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 [2023-02-17 03:45:49,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:49,314 INFO L225 Difference]: With dead ends: 35 [2023-02-17 03:45:49,314 INFO L226 Difference]: Without dead ends: 34 [2023-02-17 03:45:49,315 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 [2023-02-17 03:45:49,315 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 [2023-02-17 03:45:49,316 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] [2023-02-17 03:45:49,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-17 03:45:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-02-17 03:45:49,318 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) [2023-02-17 03:45:49,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2023-02-17 03:45:49,319 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2023-02-17 03:45:49,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:49,319 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2023-02-17 03:45:49,319 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) [2023-02-17 03:45:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2023-02-17 03:45:49,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-17 03:45:49,320 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:49,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:49,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-17 03:45:49,320 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)] === [2023-02-17 03:45:49,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:49,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1905204139, now seen corresponding path program 1 times [2023-02-17 03:45:49,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:49,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53134469] [2023-02-17 03:45:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:49,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:49,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:49,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53134469] [2023-02-17 03:45:49,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53134469] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:49,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:49,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-17 03:45:49,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54994338] [2023-02-17 03:45:49,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:49,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 03:45:49,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:49,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 03:45:49,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-02-17 03:45:49,385 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) [2023-02-17 03:45:49,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:49,438 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2023-02-17 03:45:49,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 03:45:49,440 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 [2023-02-17 03:45:49,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:49,443 INFO L225 Difference]: With dead ends: 55 [2023-02-17 03:45:49,443 INFO L226 Difference]: Without dead ends: 54 [2023-02-17 03:45:49,443 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 [2023-02-17 03:45:49,445 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 [2023-02-17 03:45:49,446 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] [2023-02-17 03:45:49,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-17 03:45:49,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 36. [2023-02-17 03:45:49,452 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) [2023-02-17 03:45:49,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2023-02-17 03:45:49,454 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2023-02-17 03:45:49,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:49,454 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2023-02-17 03:45:49,454 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) [2023-02-17 03:45:49,455 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2023-02-17 03:45:49,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-17 03:45:49,455 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:49,455 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:49,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-17 03:45:49,456 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)] === [2023-02-17 03:45:49,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:49,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1068213904, now seen corresponding path program 1 times [2023-02-17 03:45:49,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:49,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342997109] [2023-02-17 03:45:49,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:49,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:49,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:49,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:49,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:49,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342997109] [2023-02-17 03:45:49,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342997109] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:49,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:49,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-17 03:45:49,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929268554] [2023-02-17 03:45:49,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:49,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-17 03:45:49,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:49,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-17 03:45:49,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-17 03:45:49,522 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) [2023-02-17 03:45:49,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:49,564 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2023-02-17 03:45:49,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 03:45:49,565 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 [2023-02-17 03:45:49,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:49,565 INFO L225 Difference]: With dead ends: 55 [2023-02-17 03:45:49,566 INFO L226 Difference]: Without dead ends: 54 [2023-02-17 03:45:49,566 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 [2023-02-17 03:45:49,566 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 [2023-02-17 03:45:49,567 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] [2023-02-17 03:45:49,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-17 03:45:49,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2023-02-17 03:45:49,569 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) [2023-02-17 03:45:49,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2023-02-17 03:45:49,570 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 15 [2023-02-17 03:45:49,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:49,570 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2023-02-17 03:45:49,570 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) [2023-02-17 03:45:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2023-02-17 03:45:49,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-17 03:45:49,570 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:49,571 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:49,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-17 03:45:49,571 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)] === [2023-02-17 03:45:49,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:49,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1068218998, now seen corresponding path program 1 times [2023-02-17 03:45:49,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:49,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297267885] [2023-02-17 03:45:49,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:49,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:49,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:49,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:49,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:49,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297267885] [2023-02-17 03:45:49,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297267885] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:49,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114943466] [2023-02-17 03:45:49,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:49,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:49,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:49,636 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) [2023-02-17 03:45:49,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 03:45:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:49,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 03:45:49,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:49,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 03:45:49,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114943466] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:49,763 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 03:45:49,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-17 03:45:49,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109049091] [2023-02-17 03:45:49,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:49,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:45:49,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:49,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:45:49,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-17 03:45:49,765 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) [2023-02-17 03:45:49,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:49,788 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2023-02-17 03:45:49,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:45:49,788 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 [2023-02-17 03:45:49,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:49,790 INFO L225 Difference]: With dead ends: 37 [2023-02-17 03:45:49,790 INFO L226 Difference]: Without dead ends: 36 [2023-02-17 03:45:49,790 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 [2023-02-17 03:45:49,792 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 [2023-02-17 03:45:49,792 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] [2023-02-17 03:45:49,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-17 03:45:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-17 03:45:49,798 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) [2023-02-17 03:45:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2023-02-17 03:45:49,800 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 15 [2023-02-17 03:45:49,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:49,800 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2023-02-17 03:45:49,800 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) [2023-02-17 03:45:49,800 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2023-02-17 03:45:49,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-17 03:45:49,801 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:49,801 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:49,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 03:45:50,005 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 [2023-02-17 03:45:50,006 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)] === [2023-02-17 03:45:50,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:50,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1244949380, now seen corresponding path program 1 times [2023-02-17 03:45:50,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:50,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114747834] [2023-02-17 03:45:50,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:50,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:50,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:50,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114747834] [2023-02-17 03:45:50,058 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114747834] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:50,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020462777] [2023-02-17 03:45:50,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:50,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:50,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:50,060 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) [2023-02-17 03:45:50,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 03:45:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:50,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 03:45:50,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:50,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,127 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:50,158 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020462777] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:50,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:50,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-17 03:45:50,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867167108] [2023-02-17 03:45:50,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:50,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-17 03:45:50,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:50,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-17 03:45:50,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-17 03:45:50,160 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) [2023-02-17 03:45:50,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:50,213 INFO L93 Difference]: Finished difference Result 80 states and 86 transitions. [2023-02-17 03:45:50,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 03:45:50,214 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 [2023-02-17 03:45:50,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:50,215 INFO L225 Difference]: With dead ends: 80 [2023-02-17 03:45:50,215 INFO L226 Difference]: Without dead ends: 79 [2023-02-17 03:45:50,215 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 [2023-02-17 03:45:50,216 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 [2023-02-17 03:45:50,217 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] [2023-02-17 03:45:50,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-02-17 03:45:50,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 63. [2023-02-17 03:45:50,224 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) [2023-02-17 03:45:50,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 83 transitions. [2023-02-17 03:45:50,225 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 83 transitions. Word has length 16 [2023-02-17 03:45:50,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:50,225 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 83 transitions. [2023-02-17 03:45:50,226 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) [2023-02-17 03:45:50,226 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 83 transitions. [2023-02-17 03:45:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-17 03:45:50,226 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:50,226 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:50,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:50,430 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 [2023-02-17 03:45:50,431 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)] === [2023-02-17 03:45:50,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:50,432 INFO L85 PathProgramCache]: Analyzing trace with hash 61274936, now seen corresponding path program 1 times [2023-02-17 03:45:50,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:50,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6146990] [2023-02-17 03:45:50,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:50,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:50,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6146990] [2023-02-17 03:45:50,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6146990] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:50,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164863440] [2023-02-17 03:45:50,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:50,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:50,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:50,493 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) [2023-02-17 03:45:50,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 03:45:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:50,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 03:45:50,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:50,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 03:45:50,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164863440] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:50,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 03:45:50,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-02-17 03:45:50,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090078947] [2023-02-17 03:45:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:50,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-17 03:45:50,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:50,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-17 03:45:50,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-02-17 03:45:50,561 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) [2023-02-17 03:45:50,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:50,581 INFO L93 Difference]: Finished difference Result 63 states and 83 transitions. [2023-02-17 03:45:50,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-17 03:45:50,581 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 [2023-02-17 03:45:50,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:50,581 INFO L225 Difference]: With dead ends: 63 [2023-02-17 03:45:50,582 INFO L226 Difference]: Without dead ends: 62 [2023-02-17 03:45:50,582 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 [2023-02-17 03:45:50,582 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 [2023-02-17 03:45:50,582 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] [2023-02-17 03:45:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-02-17 03:45:50,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-02-17 03:45:50,585 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) [2023-02-17 03:45:50,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 80 transitions. [2023-02-17 03:45:50,585 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 80 transitions. Word has length 17 [2023-02-17 03:45:50,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:50,585 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 80 transitions. [2023-02-17 03:45:50,586 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) [2023-02-17 03:45:50,586 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 80 transitions. [2023-02-17 03:45:50,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-17 03:45:50,586 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:50,586 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:50,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:50,791 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 [2023-02-17 03:45:50,791 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)] === [2023-02-17 03:45:50,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:50,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1899523070, now seen corresponding path program 1 times [2023-02-17 03:45:50,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:50,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422091290] [2023-02-17 03:45:50,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:50,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:50,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:50,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:50,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422091290] [2023-02-17 03:45:50,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422091290] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:50,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1312901837] [2023-02-17 03:45:50,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:50,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:50,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:50,820 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) [2023-02-17 03:45:50,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 03:45:50,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:50,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-17 03:45:50,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:50,889 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:50,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1312901837] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:50,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:50,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2023-02-17 03:45:50,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985230933] [2023-02-17 03:45:50,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:50,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-17 03:45:50,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:50,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-17 03:45:50,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-02-17 03:45:50,891 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) [2023-02-17 03:45:50,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:50,932 INFO L93 Difference]: Finished difference Result 77 states and 83 transitions. [2023-02-17 03:45:50,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-17 03:45:50,932 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 [2023-02-17 03:45:50,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:50,932 INFO L225 Difference]: With dead ends: 77 [2023-02-17 03:45:50,933 INFO L226 Difference]: Without dead ends: 76 [2023-02-17 03:45:50,933 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 [2023-02-17 03:45:50,933 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 [2023-02-17 03:45:50,933 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] [2023-02-17 03:45:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-02-17 03:45:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 64. [2023-02-17 03:45:50,936 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) [2023-02-17 03:45:50,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2023-02-17 03:45:50,936 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 18 [2023-02-17 03:45:50,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:50,936 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2023-02-17 03:45:50,936 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) [2023-02-17 03:45:50,936 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2023-02-17 03:45:50,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-17 03:45:50,937 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:50,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:50,944 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-17 03:45:51,141 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 [2023-02-17 03:45:51,142 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)] === [2023-02-17 03:45:51,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:51,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1244326918, now seen corresponding path program 1 times [2023-02-17 03:45:51,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:51,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917947021] [2023-02-17 03:45:51,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:51,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:51,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:51,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917947021] [2023-02-17 03:45:51,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917947021] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:51,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653101132] [2023-02-17 03:45:51,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:51,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:51,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:51,197 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) [2023-02-17 03:45:51,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-17 03:45:51,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:51,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 03:45:51,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:51,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:51,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 03:45:51,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653101132] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:51,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 03:45:51,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2023-02-17 03:45:51,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932393658] [2023-02-17 03:45:51,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:51,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 03:45:51,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:51,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 03:45:51,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-02-17 03:45:51,292 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) [2023-02-17 03:45:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:51,341 INFO L93 Difference]: Finished difference Result 64 states and 80 transitions. [2023-02-17 03:45:51,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-17 03:45:51,341 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 [2023-02-17 03:45:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:51,342 INFO L225 Difference]: With dead ends: 64 [2023-02-17 03:45:51,342 INFO L226 Difference]: Without dead ends: 63 [2023-02-17 03:45:51,342 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 [2023-02-17 03:45:51,343 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 [2023-02-17 03:45:51,343 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] [2023-02-17 03:45:51,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-17 03:45:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-17 03:45:51,350 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) [2023-02-17 03:45:51,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2023-02-17 03:45:51,351 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 19 [2023-02-17 03:45:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:51,351 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2023-02-17 03:45:51,351 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) [2023-02-17 03:45:51,351 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2023-02-17 03:45:51,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-02-17 03:45:51,352 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:51,352 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:51,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-17 03:45:51,556 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 [2023-02-17 03:45:51,557 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)] === [2023-02-17 03:45:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:51,560 INFO L85 PathProgramCache]: Analyzing trace with hash 80571264, now seen corresponding path program 1 times [2023-02-17 03:45:51,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:51,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935454587] [2023-02-17 03:45:51,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:51,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:51,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:51,609 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:51,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:51,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935454587] [2023-02-17 03:45:51,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935454587] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:51,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074220452] [2023-02-17 03:45:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:51,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:51,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:51,624 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) [2023-02-17 03:45:51,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-17 03:45:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:51,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 03:45:51,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:51,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:51,768 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:51,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074220452] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:51,768 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:51,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-02-17 03:45:51,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549172505] [2023-02-17 03:45:51,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:51,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-17 03:45:51,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:51,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-17 03:45:51,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-02-17 03:45:51,770 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) [2023-02-17 03:45:51,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:51,876 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2023-02-17 03:45:51,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-17 03:45:51,876 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 [2023-02-17 03:45:51,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:51,877 INFO L225 Difference]: With dead ends: 74 [2023-02-17 03:45:51,877 INFO L226 Difference]: Without dead ends: 73 [2023-02-17 03:45:51,877 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 [2023-02-17 03:45:51,878 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:45:51,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 180 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:45:51,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-17 03:45:51,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 65. [2023-02-17 03:45:51,880 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) [2023-02-17 03:45:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 77 transitions. [2023-02-17 03:45:51,881 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 77 transitions. Word has length 20 [2023-02-17 03:45:51,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:51,881 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 77 transitions. [2023-02-17 03:45:51,881 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) [2023-02-17 03:45:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 77 transitions. [2023-02-17 03:45:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-17 03:45:51,882 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:51,882 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:51,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:52,087 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 [2023-02-17 03:45:52,088 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)] === [2023-02-17 03:45:52,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:52,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1797258052, now seen corresponding path program 1 times [2023-02-17 03:45:52,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:52,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671773703] [2023-02-17 03:45:52,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:52,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:52,173 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:52,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:52,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671773703] [2023-02-17 03:45:52,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671773703] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:52,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019715149] [2023-02-17 03:45:52,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:52,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:52,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:52,189 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) [2023-02-17 03:45:52,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-17 03:45:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:52,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 03:45:52,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:52,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-17 03:45:52,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019715149] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:52,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-17 03:45:52,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2023-02-17 03:45:52,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504804464] [2023-02-17 03:45:52,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:52,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 03:45:52,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:52,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 03:45:52,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2023-02-17 03:45:52,316 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) [2023-02-17 03:45:52,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:52,389 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2023-02-17 03:45:52,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-17 03:45:52,389 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 [2023-02-17 03:45:52,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:52,389 INFO L225 Difference]: With dead ends: 65 [2023-02-17 03:45:52,390 INFO L226 Difference]: Without dead ends: 63 [2023-02-17 03:45:52,390 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 [2023-02-17 03:45:52,390 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 [2023-02-17 03:45:52,391 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] [2023-02-17 03:45:52,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-17 03:45:52,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-17 03:45:52,392 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) [2023-02-17 03:45:52,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 71 transitions. [2023-02-17 03:45:52,394 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 71 transitions. Word has length 21 [2023-02-17 03:45:52,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:52,394 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 71 transitions. [2023-02-17 03:45:52,394 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) [2023-02-17 03:45:52,394 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2023-02-17 03:45:52,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-17 03:45:52,395 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:52,395 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:52,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:52,604 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 [2023-02-17 03:45:52,605 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)] === [2023-02-17 03:45:52,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:52,605 INFO L85 PathProgramCache]: Analyzing trace with hash 119575298, now seen corresponding path program 1 times [2023-02-17 03:45:52,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:52,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36666299] [2023-02-17 03:45:52,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:52,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:52,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:52,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:52,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36666299] [2023-02-17 03:45:52,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36666299] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:52,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56129151] [2023-02-17 03:45:52,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:52,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:52,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:52,650 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) [2023-02-17 03:45:52,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-17 03:45:52,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:52,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-17 03:45:52,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:52,746 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:52,747 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:52,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56129151] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:52,804 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:52,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-02-17 03:45:52,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507611496] [2023-02-17 03:45:52,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:52,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-17 03:45:52,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:52,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-17 03:45:52,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2023-02-17 03:45:52,806 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) [2023-02-17 03:45:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:52,980 INFO L93 Difference]: Finished difference Result 118 states and 131 transitions. [2023-02-17 03:45:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-17 03:45:52,981 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 [2023-02-17 03:45:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:52,981 INFO L225 Difference]: With dead ends: 118 [2023-02-17 03:45:52,981 INFO L226 Difference]: Without dead ends: 117 [2023-02-17 03:45:52,982 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 [2023-02-17 03:45:52,982 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 [2023-02-17 03:45:52,982 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] [2023-02-17 03:45:52,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-02-17 03:45:52,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2023-02-17 03:45:52,985 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) [2023-02-17 03:45:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2023-02-17 03:45:52,985 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 22 [2023-02-17 03:45:52,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:52,985 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2023-02-17 03:45:52,985 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) [2023-02-17 03:45:52,985 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2023-02-17 03:45:52,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-17 03:45:52,986 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:52,986 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-17 03:45:52,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:53,191 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 [2023-02-17 03:45:53,192 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)] === [2023-02-17 03:45:53,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:53,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1739878945, now seen corresponding path program 1 times [2023-02-17 03:45:53,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:53,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398098290] [2023-02-17 03:45:53,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:53,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:53,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:53,218 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:53,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:53,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398098290] [2023-02-17 03:45:53,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398098290] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:53,218 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:53,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:45:53,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606406373] [2023-02-17 03:45:53,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:53,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:45:53,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:53,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:45:53,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:45:53,233 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) [2023-02-17 03:45:53,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:53,239 INFO L93 Difference]: Finished difference Result 161 states and 176 transitions. [2023-02-17 03:45:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:45:53,239 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 [2023-02-17 03:45:53,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:53,240 INFO L225 Difference]: With dead ends: 161 [2023-02-17 03:45:53,240 INFO L226 Difference]: Without dead ends: 123 [2023-02-17 03:45:53,240 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 [2023-02-17 03:45:53,240 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 [2023-02-17 03:45:53,241 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] [2023-02-17 03:45:53,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-02-17 03:45:53,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 119. [2023-02-17 03:45:53,244 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) [2023-02-17 03:45:53,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2023-02-17 03:45:53,245 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 25 [2023-02-17 03:45:53,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:53,245 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2023-02-17 03:45:53,245 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) [2023-02-17 03:45:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2023-02-17 03:45:53,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-02-17 03:45:53,245 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:53,246 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-17 03:45:53,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-02-17 03:45:53,246 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)] === [2023-02-17 03:45:53,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:53,246 INFO L85 PathProgramCache]: Analyzing trace with hash 979524861, now seen corresponding path program 1 times [2023-02-17 03:45:53,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:53,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322458393] [2023-02-17 03:45:53,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:53,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:53,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:53,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:53,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322458393] [2023-02-17 03:45:53,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322458393] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:53,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831047763] [2023-02-17 03:45:53,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:53,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:53,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:53,340 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) [2023-02-17 03:45:53,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-17 03:45:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:53,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-17 03:45:53,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:53,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:53,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:53,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831047763] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:53,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:53,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2023-02-17 03:45:53,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439052285] [2023-02-17 03:45:53,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:53,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-17 03:45:53,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:53,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-17 03:45:53,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2023-02-17 03:45:53,549 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) [2023-02-17 03:45:53,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:53,741 INFO L93 Difference]: Finished difference Result 144 states and 154 transitions. [2023-02-17 03:45:53,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-17 03:45:53,742 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 [2023-02-17 03:45:53,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:53,742 INFO L225 Difference]: With dead ends: 144 [2023-02-17 03:45:53,742 INFO L226 Difference]: Without dead ends: 142 [2023-02-17 03:45:53,743 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 [2023-02-17 03:45:53,743 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 [2023-02-17 03:45:53,743 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] [2023-02-17 03:45:53,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-02-17 03:45:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 109. [2023-02-17 03:45:53,748 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) [2023-02-17 03:45:53,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 117 transitions. [2023-02-17 03:45:53,748 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 117 transitions. Word has length 27 [2023-02-17 03:45:53,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:53,749 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 117 transitions. [2023-02-17 03:45:53,749 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) [2023-02-17 03:45:53,749 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 117 transitions. [2023-02-17 03:45:53,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-17 03:45:53,752 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:53,752 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-17 03:45:53,767 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:53,956 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 [2023-02-17 03:45:53,957 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)] === [2023-02-17 03:45:53,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:53,957 INFO L85 PathProgramCache]: Analyzing trace with hash -531953560, now seen corresponding path program 1 times [2023-02-17 03:45:53,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:53,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765344954] [2023-02-17 03:45:53,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:53,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:53,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:53,978 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-17 03:45:53,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:53,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765344954] [2023-02-17 03:45:53,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765344954] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 03:45:53,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 03:45:53,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-17 03:45:53,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107145835] [2023-02-17 03:45:53,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 03:45:53,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-17 03:45:53,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:53,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-17 03:45:53,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-17 03:45:53,980 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) [2023-02-17 03:45:53,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:53,985 INFO L93 Difference]: Finished difference Result 146 states and 150 transitions. [2023-02-17 03:45:53,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-17 03:45:53,985 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 [2023-02-17 03:45:53,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:53,986 INFO L225 Difference]: With dead ends: 146 [2023-02-17 03:45:53,986 INFO L226 Difference]: Without dead ends: 106 [2023-02-17 03:45:53,986 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 [2023-02-17 03:45:53,987 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 [2023-02-17 03:45:53,987 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] [2023-02-17 03:45:53,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2023-02-17 03:45:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2023-02-17 03:45:53,990 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) [2023-02-17 03:45:53,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2023-02-17 03:45:53,991 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 46 [2023-02-17 03:45:53,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:53,991 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2023-02-17 03:45:53,991 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) [2023-02-17 03:45:53,991 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2023-02-17 03:45:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-17 03:45:53,992 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:53,992 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-17 03:45:53,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-02-17 03:45:53,992 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)] === [2023-02-17 03:45:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:53,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1253571607, now seen corresponding path program 2 times [2023-02-17 03:45:53,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:53,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448526996] [2023-02-17 03:45:53,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:53,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:54,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:54,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:54,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448526996] [2023-02-17 03:45:54,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448526996] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:54,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968757100] [2023-02-17 03:45:54,086 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:45:54,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:54,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:54,103 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) [2023-02-17 03:45:54,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-17 03:45:54,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:45:54,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:45:54,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-17 03:45:54,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:54,173 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:54,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:54,270 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:54,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968757100] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:54,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:54,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-17 03:45:54,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097806611] [2023-02-17 03:45:54,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:54,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 03:45:54,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:54,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 03:45:54,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-17 03:45:54,272 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) [2023-02-17 03:45:54,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:54,405 INFO L93 Difference]: Finished difference Result 247 states and 278 transitions. [2023-02-17 03:45:54,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-17 03:45:54,405 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 [2023-02-17 03:45:54,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:54,406 INFO L225 Difference]: With dead ends: 247 [2023-02-17 03:45:54,406 INFO L226 Difference]: Without dead ends: 246 [2023-02-17 03:45:54,407 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 [2023-02-17 03:45:54,407 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 [2023-02-17 03:45:54,407 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] [2023-02-17 03:45:54,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-02-17 03:45:54,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 224. [2023-02-17 03:45:54,413 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) [2023-02-17 03:45:54,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 266 transitions. [2023-02-17 03:45:54,414 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 266 transitions. Word has length 46 [2023-02-17 03:45:54,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:54,414 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 266 transitions. [2023-02-17 03:45:54,414 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) [2023-02-17 03:45:54,414 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 266 transitions. [2023-02-17 03:45:54,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-17 03:45:54,415 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:54,415 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1] [2023-02-17 03:45:54,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-02-17 03:45:54,620 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 [2023-02-17 03:45:54,621 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)] === [2023-02-17 03:45:54,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:54,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1091348876, now seen corresponding path program 1 times [2023-02-17 03:45:54,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:54,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218472327] [2023-02-17 03:45:54,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:54,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:54,780 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:54,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:54,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218472327] [2023-02-17 03:45:54,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218472327] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:54,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844740384] [2023-02-17 03:45:54,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:54,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:54,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:54,781 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) [2023-02-17 03:45:54,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-17 03:45:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:54,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-17 03:45:54,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:54,990 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:54,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:55,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844740384] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:55,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:55,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2023-02-17 03:45:55,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058420226] [2023-02-17 03:45:55,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:55,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-17 03:45:55,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:55,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-17 03:45:55,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2023-02-17 03:45:55,187 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) [2023-02-17 03:45:55,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:55,764 INFO L93 Difference]: Finished difference Result 239 states and 266 transitions. [2023-02-17 03:45:55,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-17 03:45:55,765 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 [2023-02-17 03:45:55,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:55,766 INFO L225 Difference]: With dead ends: 239 [2023-02-17 03:45:55,766 INFO L226 Difference]: Without dead ends: 238 [2023-02-17 03:45:55,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2293 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1498, Invalid=5308, Unknown=0, NotChecked=0, Total=6806 [2023-02-17 03:45:55,768 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:45:55,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 221 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:45:55,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-02-17 03:45:55,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 224. [2023-02-17 03:45:55,773 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) [2023-02-17 03:45:55,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 258 transitions. [2023-02-17 03:45:55,774 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 258 transitions. Word has length 48 [2023-02-17 03:45:55,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:55,774 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 258 transitions. [2023-02-17 03:45:55,775 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) [2023-02-17 03:45:55,775 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 258 transitions. [2023-02-17 03:45:55,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-02-17 03:45:55,775 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:55,775 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-17 03:45:55,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:55,980 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 [2023-02-17 03:45:55,980 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)] === [2023-02-17 03:45:55,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash -2091469781, now seen corresponding path program 2 times [2023-02-17 03:45:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:55,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271717226] [2023-02-17 03:45:55,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:55,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:55,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:56,064 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:56,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:56,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271717226] [2023-02-17 03:45:56,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271717226] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:56,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029429432] [2023-02-17 03:45:56,065 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:45:56,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:56,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:56,083 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) [2023-02-17 03:45:56,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-17 03:45:56,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:45:56,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:45:56,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-17 03:45:56,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:56,161 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:56,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:56,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029429432] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:56,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:56,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2023-02-17 03:45:56,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680053454] [2023-02-17 03:45:56,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:56,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-17 03:45:56,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:56,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-17 03:45:56,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2023-02-17 03:45:56,244 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) [2023-02-17 03:45:56,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:56,350 INFO L93 Difference]: Finished difference Result 242 states and 264 transitions. [2023-02-17 03:45:56,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-02-17 03:45:56,351 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 [2023-02-17 03:45:56,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:56,351 INFO L225 Difference]: With dead ends: 242 [2023-02-17 03:45:56,351 INFO L226 Difference]: Without dead ends: 241 [2023-02-17 03:45:56,352 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 [2023-02-17 03:45:56,352 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, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 03:45:56,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 162 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 03:45:56,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-02-17 03:45:56,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 228. [2023-02-17 03:45:56,357 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) [2023-02-17 03:45:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 252 transitions. [2023-02-17 03:45:56,357 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 252 transitions. Word has length 48 [2023-02-17 03:45:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:56,358 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 252 transitions. [2023-02-17 03:45:56,358 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) [2023-02-17 03:45:56,358 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 252 transitions. [2023-02-17 03:45:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-17 03:45:56,358 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:56,358 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2023-02-17 03:45:56,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:56,562 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 [2023-02-17 03:45:56,563 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)] === [2023-02-17 03:45:56,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:56,563 INFO L85 PathProgramCache]: Analyzing trace with hash 142236781, now seen corresponding path program 2 times [2023-02-17 03:45:56,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:56,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792336946] [2023-02-17 03:45:56,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:56,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:56,711 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:56,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:56,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792336946] [2023-02-17 03:45:56,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792336946] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:56,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235147973] [2023-02-17 03:45:56,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:45:56,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:56,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:56,721 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) [2023-02-17 03:45:56,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-17 03:45:56,757 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:45:56,757 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:45:56,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-17 03:45:56,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:56,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:57,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235147973] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:57,101 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:57,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2023-02-17 03:45:57,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443922109] [2023-02-17 03:45:57,101 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:57,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-17 03:45:57,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-17 03:45:57,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=2028, Unknown=0, NotChecked=0, Total=2450 [2023-02-17 03:45:57,103 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) [2023-02-17 03:45:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:57,477 INFO L93 Difference]: Finished difference Result 241 states and 258 transitions. [2023-02-17 03:45:57,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-02-17 03:45:57,477 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 [2023-02-17 03:45:57,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:57,479 INFO L225 Difference]: With dead ends: 241 [2023-02-17 03:45:57,479 INFO L226 Difference]: Without dead ends: 240 [2023-02-17 03:45:57,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1685 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=985, Invalid=3845, Unknown=0, NotChecked=0, Total=4830 [2023-02-17 03:45:57,481 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 [2023-02-17 03:45:57,482 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] [2023-02-17 03:45:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-02-17 03:45:57,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2023-02-17 03:45:57,487 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) [2023-02-17 03:45:57,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 246 transitions. [2023-02-17 03:45:57,488 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 246 transitions. Word has length 50 [2023-02-17 03:45:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:57,488 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 246 transitions. [2023-02-17 03:45:57,488 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) [2023-02-17 03:45:57,488 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 246 transitions. [2023-02-17 03:45:57,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-02-17 03:45:57,489 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:57,489 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2023-02-17 03:45:57,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:57,693 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 [2023-02-17 03:45:57,694 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)] === [2023-02-17 03:45:57,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:57,694 INFO L85 PathProgramCache]: Analyzing trace with hash -528001193, now seen corresponding path program 2 times [2023-02-17 03:45:57,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:57,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60003788] [2023-02-17 03:45:57,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:57,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:57,906 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:57,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:57,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60003788] [2023-02-17 03:45:57,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60003788] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:57,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [163645237] [2023-02-17 03:45:57,907 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:45:57,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:57,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:57,922 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) [2023-02-17 03:45:57,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-17 03:45:57,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:45:57,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:45:57,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-17 03:45:57,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:45:58,177 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:58,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:45:58,354 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:58,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [163645237] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:45:58,355 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:45:58,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2023-02-17 03:45:58,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043776625] [2023-02-17 03:45:58,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:45:58,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-02-17 03:45:58,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:45:58,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-02-17 03:45:58,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=2150, Unknown=0, NotChecked=0, Total=2652 [2023-02-17 03:45:58,356 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) [2023-02-17 03:45:58,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:45:58,816 INFO L93 Difference]: Finished difference Result 234 states and 246 transitions. [2023-02-17 03:45:58,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-02-17 03:45:58,816 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 [2023-02-17 03:45:58,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:45:58,817 INFO L225 Difference]: With dead ends: 234 [2023-02-17 03:45:58,817 INFO L226 Difference]: Without dead ends: 233 [2023-02-17 03:45:58,818 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 [2023-02-17 03:45:58,819 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, 0.1s IncrementalHoareTripleChecker+Time [2023-02-17 03:45:58,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 269 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-17 03:45:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-02-17 03:45:58,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 232. [2023-02-17 03:45:58,823 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) [2023-02-17 03:45:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 242 transitions. [2023-02-17 03:45:58,824 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 242 transitions. Word has length 51 [2023-02-17 03:45:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:45:58,824 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 242 transitions. [2023-02-17 03:45:58,824 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) [2023-02-17 03:45:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 242 transitions. [2023-02-17 03:45:58,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-02-17 03:45:58,825 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:45:58,825 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 1, 1, 1, 1] [2023-02-17 03:45:58,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-17 03:45:59,029 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 [2023-02-17 03:45:59,029 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)] === [2023-02-17 03:45:59,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:45:59,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1952333931, now seen corresponding path program 2 times [2023-02-17 03:45:59,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:45:59,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841639286] [2023-02-17 03:45:59,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:45:59,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:45:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:45:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:45:59,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:45:59,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841639286] [2023-02-17 03:45:59,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841639286] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:45:59,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121850599] [2023-02-17 03:45:59,445 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:45:59,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:45:59,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:45:59,447 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) [2023-02-17 03:45:59,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-17 03:45:59,529 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:45:59,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:45:59,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-17 03:45:59,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:00,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:00,668 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:00,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1121850599] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:00,674 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:00,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 85 [2023-02-17 03:46:00,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366361068] [2023-02-17 03:46:00,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:00,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2023-02-17 03:46:00,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:00,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2023-02-17 03:46:00,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1096, Invalid=6214, Unknown=0, NotChecked=0, Total=7310 [2023-02-17 03:46:00,677 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) [2023-02-17 03:46:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:02,606 INFO L93 Difference]: Finished difference Result 341 states and 357 transitions. [2023-02-17 03:46:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2023-02-17 03:46:02,606 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 [2023-02-17 03:46:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:02,607 INFO L225 Difference]: With dead ends: 341 [2023-02-17 03:46:02,607 INFO L226 Difference]: Without dead ends: 340 [2023-02-17 03:46:02,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7720 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4460, Invalid=17296, Unknown=0, NotChecked=0, Total=21756 [2023-02-17 03:46:02,612 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 [2023-02-17 03:46:02,612 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] [2023-02-17 03:46:02,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-02-17 03:46:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 314. [2023-02-17 03:46:02,620 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) [2023-02-17 03:46:02,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 345 transitions. [2023-02-17 03:46:02,621 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 345 transitions. Word has length 92 [2023-02-17 03:46:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:02,621 INFO L495 AbstractCegarLoop]: Abstraction has 314 states and 345 transitions. [2023-02-17 03:46:02,621 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) [2023-02-17 03:46:02,621 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 345 transitions. [2023-02-17 03:46:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-02-17 03:46:02,622 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:02,622 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1] [2023-02-17 03:46:02,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-17 03:46:02,829 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 [2023-02-17 03:46:02,829 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)] === [2023-02-17 03:46:02,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:02,830 INFO L85 PathProgramCache]: Analyzing trace with hash -2084404725, now seen corresponding path program 3 times [2023-02-17 03:46:02,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:02,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627862876] [2023-02-17 03:46:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:02,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:46:03,298 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:03,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:46:03,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627862876] [2023-02-17 03:46:03,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627862876] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:46:03,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061065745] [2023-02-17 03:46:03,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 03:46:03,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:46:03,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:46:03,309 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) [2023-02-17 03:46:03,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-17 03:46:03,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-17 03:46:03,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:46:03,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-17 03:46:03,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:03,967 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:03,967 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:04,710 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 0 proven. 336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:04,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061065745] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:04,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:04,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 99 [2023-02-17 03:46:04,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395510583] [2023-02-17 03:46:04,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:04,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2023-02-17 03:46:04,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:04,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2023-02-17 03:46:04,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1614, Invalid=8286, Unknown=0, NotChecked=0, Total=9900 [2023-02-17 03:46:04,714 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) [2023-02-17 03:46:07,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:07,061 INFO L93 Difference]: Finished difference Result 417 states and 437 transitions. [2023-02-17 03:46:07,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-02-17 03:46:07,061 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 [2023-02-17 03:46:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:07,062 INFO L225 Difference]: With dead ends: 417 [2023-02-17 03:46:07,062 INFO L226 Difference]: Without dead ends: 415 [2023-02-17 03:46:07,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 131 SyntacticMatches, 1 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10784 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=6071, Invalid=22659, Unknown=0, NotChecked=0, Total=28730 [2023-02-17 03:46:07,065 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1218 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2023-02-17 03:46:07,085 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] [2023-02-17 03:46:07,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2023-02-17 03:46:07,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 379. [2023-02-17 03:46:07,097 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) [2023-02-17 03:46:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 423 transitions. [2023-02-17 03:46:07,098 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 423 transitions. Word has length 99 [2023-02-17 03:46:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:07,098 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 423 transitions. [2023-02-17 03:46:07,099 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) [2023-02-17 03:46:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 423 transitions. [2023-02-17 03:46:07,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-02-17 03:46:07,099 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:07,099 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-17 03:46:07,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-17 03:46:07,304 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 [2023-02-17 03:46:07,304 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)] === [2023-02-17 03:46:07,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:07,306 INFO L85 PathProgramCache]: Analyzing trace with hash -337724285, now seen corresponding path program 3 times [2023-02-17 03:46:07,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:07,306 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286723205] [2023-02-17 03:46:07,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:07,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:46:07,656 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 480 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:07,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:46:07,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286723205] [2023-02-17 03:46:07,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286723205] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:46:07,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328527300] [2023-02-17 03:46:07,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 03:46:07,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:46:07,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:46:07,658 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) [2023-02-17 03:46:07,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-17 03:46:07,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-17 03:46:07,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:46:07,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-17 03:46:07,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:07,852 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 51 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-02-17 03:46:07,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 243 proven. 51 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2023-02-17 03:46:08,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328527300] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:08,072 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:08,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 43 [2023-02-17 03:46:08,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976818065] [2023-02-17 03:46:08,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:08,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-02-17 03:46:08,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:08,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-02-17 03:46:08,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2023-02-17 03:46:08,073 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) [2023-02-17 03:46:08,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:08,959 INFO L93 Difference]: Finished difference Result 381 states and 423 transitions. [2023-02-17 03:46:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-02-17 03:46:08,959 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 [2023-02-17 03:46:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:08,961 INFO L225 Difference]: With dead ends: 381 [2023-02-17 03:46:08,961 INFO L226 Difference]: Without dead ends: 380 [2023-02-17 03:46:08,961 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 [2023-02-17 03:46:08,962 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 [2023-02-17 03:46:08,963 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] [2023-02-17 03:46:08,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2023-02-17 03:46:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2023-02-17 03:46:08,975 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) [2023-02-17 03:46:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 408 transitions. [2023-02-17 03:46:08,976 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 408 transitions. Word has length 106 [2023-02-17 03:46:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:08,976 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 408 transitions. [2023-02-17 03:46:08,976 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) [2023-02-17 03:46:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 408 transitions. [2023-02-17 03:46:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-02-17 03:46:08,977 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:08,977 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-17 03:46:08,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-02-17 03:46:09,182 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 [2023-02-17 03:46:09,182 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)] === [2023-02-17 03:46:09,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:09,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1864478277, now seen corresponding path program 3 times [2023-02-17 03:46:09,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:09,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215578155] [2023-02-17 03:46:09,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:09,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:46:09,400 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 0 proven. 500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:09,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:46:09,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215578155] [2023-02-17 03:46:09,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215578155] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:46:09,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558341184] [2023-02-17 03:46:09,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 03:46:09,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:46:09,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:46:09,418 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) [2023-02-17 03:46:09,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-17 03:46:09,495 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2023-02-17 03:46:09,495 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:46:09,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-17 03:46:09,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 251 proven. 51 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-02-17 03:46:09,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 251 proven. 51 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2023-02-17 03:46:09,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558341184] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:09,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:09,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 43 [2023-02-17 03:46:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126472018] [2023-02-17 03:46:09,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:09,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2023-02-17 03:46:09,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:09,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2023-02-17 03:46:09,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1556, Unknown=0, NotChecked=0, Total=1892 [2023-02-17 03:46:09,730 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) [2023-02-17 03:46:10,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:10,545 INFO L93 Difference]: Finished difference Result 379 states and 408 transitions. [2023-02-17 03:46:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2023-02-17 03:46:10,545 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 [2023-02-17 03:46:10,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:10,547 INFO L225 Difference]: With dead ends: 379 [2023-02-17 03:46:10,547 INFO L226 Difference]: Without dead ends: 378 [2023-02-17 03:46:10,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=2064, Invalid=6678, Unknown=0, NotChecked=0, Total=8742 [2023-02-17 03:46:10,549 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 [2023-02-17 03:46:10,549 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] [2023-02-17 03:46:10,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2023-02-17 03:46:10,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 377. [2023-02-17 03:46:10,559 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) [2023-02-17 03:46:10,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 393 transitions. [2023-02-17 03:46:10,560 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 393 transitions. Word has length 108 [2023-02-17 03:46:10,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:10,560 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 393 transitions. [2023-02-17 03:46:10,560 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) [2023-02-17 03:46:10,560 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 393 transitions. [2023-02-17 03:46:10,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-02-17 03:46:10,561 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:10,561 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2023-02-17 03:46:10,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-17 03:46:10,765 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 [2023-02-17 03:46:10,766 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)] === [2023-02-17 03:46:10,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:10,766 INFO L85 PathProgramCache]: Analyzing trace with hash 762263559, now seen corresponding path program 3 times [2023-02-17 03:46:10,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:10,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125987297] [2023-02-17 03:46:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:10,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:46:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:11,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:46:11,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125987297] [2023-02-17 03:46:11,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125987297] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:46:11,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [644291602] [2023-02-17 03:46:11,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 03:46:11,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:46:11,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:46:11,238 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) [2023-02-17 03:46:11,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-17 03:46:11,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-17 03:46:11,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:46:11,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjunts are in the unsatisfiable core [2023-02-17 03:46:11,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:11,909 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:11,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:12,749 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:12,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [644291602] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:12,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:12,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 103 [2023-02-17 03:46:12,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250049984] [2023-02-17 03:46:12,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:12,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2023-02-17 03:46:12,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:12,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2023-02-17 03:46:12,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1547, Invalid=9165, Unknown=0, NotChecked=0, Total=10712 [2023-02-17 03:46:12,752 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) [2023-02-17 03:46:14,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:14,193 INFO L93 Difference]: Finished difference Result 507 states and 536 transitions. [2023-02-17 03:46:14,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-02-17 03:46:14,194 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 [2023-02-17 03:46:14,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:14,205 INFO L225 Difference]: With dead ends: 507 [2023-02-17 03:46:14,205 INFO L226 Difference]: Without dead ends: 506 [2023-02-17 03:46:14,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8162 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4093, Invalid=17663, Unknown=0, NotChecked=0, Total=21756 [2023-02-17 03:46:14,207 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 [2023-02-17 03:46:14,207 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] [2023-02-17 03:46:14,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2023-02-17 03:46:14,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 494. [2023-02-17 03:46:14,220 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) [2023-02-17 03:46:14,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 512 transitions. [2023-02-17 03:46:14,221 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 512 transitions. Word has length 110 [2023-02-17 03:46:14,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:14,221 INFO L495 AbstractCegarLoop]: Abstraction has 494 states and 512 transitions. [2023-02-17 03:46:14,222 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) [2023-02-17 03:46:14,222 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 512 transitions. [2023-02-17 03:46:14,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-02-17 03:46:14,223 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:14,223 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 1, 1, 1, 1] [2023-02-17 03:46:14,251 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-17 03:46:14,427 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 [2023-02-17 03:46:14,428 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)] === [2023-02-17 03:46:14,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:14,428 INFO L85 PathProgramCache]: Analyzing trace with hash 428779248, now seen corresponding path program 2 times [2023-02-17 03:46:14,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:14,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96455565] [2023-02-17 03:46:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:14,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:46:15,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:15,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:46:15,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96455565] [2023-02-17 03:46:15,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96455565] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:46:15,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848654919] [2023-02-17 03:46:15,779 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 03:46:15,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:46:15,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:46:15,794 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) [2023-02-17 03:46:15,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-17 03:46:15,891 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 03:46:15,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:46:15,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 65 conjunts are in the unsatisfiable core [2023-02-17 03:46:15,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:17,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:17,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:19,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1395 backedges. 0 proven. 1395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:19,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848654919] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:19,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:19,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 193 [2023-02-17 03:46:19,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942953373] [2023-02-17 03:46:19,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:19,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2023-02-17 03:46:19,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:19,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2023-02-17 03:46:19,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5527, Invalid=31915, Unknown=0, NotChecked=0, Total=37442 [2023-02-17 03:46:19,480 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) [2023-02-17 03:46:27,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:27,991 INFO L93 Difference]: Finished difference Result 732 states and 773 transitions. [2023-02-17 03:46:27,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-02-17 03:46:27,992 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 [2023-02-17 03:46:27,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:27,995 INFO L225 Difference]: With dead ends: 732 [2023-02-17 03:46:27,995 INFO L226 Difference]: Without dead ends: 731 [2023-02-17 03:46:27,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39545 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=19886, Invalid=80920, Unknown=0, NotChecked=0, Total=100806 [2023-02-17 03:46:27,999 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2178 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2023-02-17 03:46:27,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 838 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-17 03:46:28,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2023-02-17 03:46:28,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 706. [2023-02-17 03:46:28,017 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) [2023-02-17 03:46:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 743 transitions. [2023-02-17 03:46:28,018 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 743 transitions. Word has length 192 [2023-02-17 03:46:28,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:28,018 INFO L495 AbstractCegarLoop]: Abstraction has 706 states and 743 transitions. [2023-02-17 03:46:28,019 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) [2023-02-17 03:46:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 743 transitions. [2023-02-17 03:46:28,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2023-02-17 03:46:28,020 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:28,020 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 15, 1, 1, 1, 1] [2023-02-17 03:46:28,025 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2023-02-17 03:46:28,225 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 [2023-02-17 03:46:28,225 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)] === [2023-02-17 03:46:28,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:28,226 INFO L85 PathProgramCache]: Analyzing trace with hash 529903475, now seen corresponding path program 4 times [2023-02-17 03:46:28,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:28,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208418096] [2023-02-17 03:46:28,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:28,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:46:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:29,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:46:29,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208418096] [2023-02-17 03:46:29,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208418096] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:46:29,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364516613] [2023-02-17 03:46:29,931 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 03:46:29,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:46:29,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:46:29,932 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) [2023-02-17 03:46:29,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-17 03:46:30,026 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 03:46:30,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:46:30,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 66 conjunts are in the unsatisfiable core [2023-02-17 03:46:30,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:32,019 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 0 proven. 1440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:34,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364516613] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:34,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:34,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66, 66] total 195 [2023-02-17 03:46:34,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299670384] [2023-02-17 03:46:34,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:34,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2023-02-17 03:46:34,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2023-02-17 03:46:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5662, Invalid=32558, Unknown=0, NotChecked=0, Total=38220 [2023-02-17 03:46:34,020 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) [2023-02-17 03:46:43,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:43,418 INFO L93 Difference]: Finished difference Result 741 states and 759 transitions. [2023-02-17 03:46:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2023-02-17 03:46:43,418 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 [2023-02-17 03:46:43,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:43,437 INFO L225 Difference]: With dead ends: 741 [2023-02-17 03:46:43,437 INFO L226 Difference]: Without dead ends: 740 [2023-02-17 03:46:43,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 259 SyntacticMatches, 1 SemanticMatches, 317 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40145 ImplicationChecksByTransitivity, 13.1s TimeCoverageRelationStatistics Valid=21187, Invalid=80255, Unknown=0, NotChecked=0, Total=101442 [2023-02-17 03:46:43,445 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 [2023-02-17 03:46:43,446 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] [2023-02-17 03:46:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-02-17 03:46:43,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 709. [2023-02-17 03:46:43,485 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) [2023-02-17 03:46:43,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 731 transitions. [2023-02-17 03:46:43,486 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 731 transitions. Word has length 195 [2023-02-17 03:46:43,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:43,486 INFO L495 AbstractCegarLoop]: Abstraction has 709 states and 731 transitions. [2023-02-17 03:46:43,487 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) [2023-02-17 03:46:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 731 transitions. [2023-02-17 03:46:43,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2023-02-17 03:46:43,488 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:43,488 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2023-02-17 03:46:43,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-17 03:46:43,693 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 [2023-02-17 03:46:43,693 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)] === [2023-02-17 03:46:43,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:43,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1202689595, now seen corresponding path program 4 times [2023-02-17 03:46:43,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:43,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577104548] [2023-02-17 03:46:43,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:43,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:43,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:46:45,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:45,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:46:45,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577104548] [2023-02-17 03:46:45,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577104548] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:46:45,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694501919] [2023-02-17 03:46:45,334 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 03:46:45,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:46:45,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:46:45,337 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) [2023-02-17 03:46:45,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-17 03:46:45,432 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 03:46:45,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:46:45,434 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 71 conjunts are in the unsatisfiable core [2023-02-17 03:46:45,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:46:47,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:47,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:46:49,634 INFO L134 CoverageAnalysis]: Checked inductivity of 2464 backedges. 0 proven. 2464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:46:49,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694501919] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:46:49,635 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:46:49,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 211 [2023-02-17 03:46:49,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693225555] [2023-02-17 03:46:49,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:46:49,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2023-02-17 03:46:49,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:46:49,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2023-02-17 03:46:49,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5849, Invalid=38883, Unknown=0, NotChecked=0, Total=44732 [2023-02-17 03:46:49,671 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) [2023-02-17 03:46:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:46:58,408 INFO L93 Difference]: Finished difference Result 1051 states and 1114 transitions. [2023-02-17 03:46:58,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2023-02-17 03:46:58,409 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 [2023-02-17 03:46:58,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:46:58,411 INFO L225 Difference]: With dead ends: 1051 [2023-02-17 03:46:58,411 INFO L226 Difference]: Without dead ends: 1050 [2023-02-17 03:46:58,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 319 SyntacticMatches, 0 SemanticMatches, 302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35696 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=16681, Invalid=75431, Unknown=0, NotChecked=0, Total=92112 [2023-02-17 03:46:58,416 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 [2023-02-17 03:46:58,416 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] [2023-02-17 03:46:58,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2023-02-17 03:46:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1022. [2023-02-17 03:46:58,443 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) [2023-02-17 03:46:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1066 transitions. [2023-02-17 03:46:58,445 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1066 transitions. Word has length 230 [2023-02-17 03:46:58,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:46:58,445 INFO L495 AbstractCegarLoop]: Abstraction has 1022 states and 1066 transitions. [2023-02-17 03:46:58,445 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) [2023-02-17 03:46:58,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1066 transitions. [2023-02-17 03:46:58,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2023-02-17 03:46:58,448 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:46:58,448 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 33, 33, 32, 32, 1, 1, 1, 1] [2023-02-17 03:46:58,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-02-17 03:46:58,653 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 [2023-02-17 03:46:58,653 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)] === [2023-02-17 03:46:58,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:46:58,654 INFO L85 PathProgramCache]: Analyzing trace with hash 504756947, now seen corresponding path program 3 times [2023-02-17 03:46:58,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:46:58,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006339869] [2023-02-17 03:46:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:46:58,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:46:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:47:02,434 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:47:02,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:47:02,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006339869] [2023-02-17 03:47:02,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006339869] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:47:02,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781632989] [2023-02-17 03:47:02,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 03:47:02,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:47:02,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:47:02,436 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) [2023-02-17 03:47:02,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-17 03:47:02,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2023-02-17 03:47:02,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:47:02,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 101 conjunts are in the unsatisfiable core [2023-02-17 03:47:02,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:47:06,441 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:47:06,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:47:11,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5248 backedges. 0 proven. 5248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:47:11,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781632989] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:47:11,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:47:11,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 301 [2023-02-17 03:47:11,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275453848] [2023-02-17 03:47:11,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:47:11,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 302 states [2023-02-17 03:47:11,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:47:11,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 302 interpolants. [2023-02-17 03:47:11,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11524, Invalid=79378, Unknown=0, NotChecked=0, Total=90902 [2023-02-17 03:47:11,166 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) [2023-02-17 03:47:41,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:47:41,065 INFO L93 Difference]: Finished difference Result 1247 states and 1309 transitions. [2023-02-17 03:47:41,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 269 states. [2023-02-17 03:47:41,066 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 [2023-02-17 03:47:41,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:47:41,069 INFO L225 Difference]: With dead ends: 1247 [2023-02-17 03:47:41,069 INFO L226 Difference]: Without dead ends: 1246 [2023-02-17 03:47:41,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 963 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 500 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96884 ImplicationChecksByTransitivity, 37.0s TimeCoverageRelationStatistics Valid=50474, Invalid=201028, Unknown=0, NotChecked=0, Total=251502 [2023-02-17 03:47:41,081 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3745 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 2184 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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 [2023-02-17 03:47:41,081 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] [2023-02-17 03:47:41,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1246 states. [2023-02-17 03:47:41,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1246 to 1224. [2023-02-17 03:47:41,117 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) [2023-02-17 03:47:41,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1273 transitions. [2023-02-17 03:47:41,118 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1273 transitions. Word has length 332 [2023-02-17 03:47:41,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:47:41,119 INFO L495 AbstractCegarLoop]: Abstraction has 1224 states and 1273 transitions. [2023-02-17 03:47:41,119 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) [2023-02-17 03:47:41,119 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1273 transitions. [2023-02-17 03:47:41,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2023-02-17 03:47:41,121 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:47:41,121 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 31, 1, 1, 1, 1] [2023-02-17 03:47:41,127 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2023-02-17 03:47:41,327 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 [2023-02-17 03:47:41,327 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)] === [2023-02-17 03:47:41,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:47:41,328 INFO L85 PathProgramCache]: Analyzing trace with hash 158296643, now seen corresponding path program 5 times [2023-02-17 03:47:41,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:47:41,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647364404] [2023-02-17 03:47:41,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:47:41,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:47:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:47:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:47:47,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:47:47,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647364404] [2023-02-17 03:47:47,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647364404] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:47:47,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054267760] [2023-02-17 03:47:47,246 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 03:47:47,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:47:47,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:47:47,247 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) [2023-02-17 03:47:47,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2023-02-17 03:47:47,459 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-17 03:47:47,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:47:47,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 867 conjuncts, 130 conjunts are in the unsatisfiable core [2023-02-17 03:47:47,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:47:53,179 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:47:53,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:48:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 5952 backedges. 0 proven. 5952 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:48:01,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054267760] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:48:01,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:48:01,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130, 130] total 387 [2023-02-17 03:48:01,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637347102] [2023-02-17 03:48:01,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:48:01,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 388 states [2023-02-17 03:48:01,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:48:01,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 388 interpolants. [2023-02-17 03:48:01,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21054, Invalid=129102, Unknown=0, NotChecked=0, Total=150156 [2023-02-17 03:48:01,152 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) [2023-02-17 03:48:59,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 03:48:59,262 INFO L93 Difference]: Finished difference Result 1471 states and 1535 transitions. [2023-02-17 03:48:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 351 states. [2023-02-17 03:48:59,263 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 [2023-02-17 03:48:59,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 03:48:59,266 INFO L225 Difference]: With dead ends: 1471 [2023-02-17 03:48:59,266 INFO L226 Difference]: Without dead ends: 1469 [2023-02-17 03:48:59,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1153 GetRequests, 515 SyntacticMatches, 1 SemanticMatches, 637 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164129 ImplicationChecksByTransitivity, 68.2s TimeCoverageRelationStatistics Valid=83819, Invalid=323863, Unknown=0, NotChecked=0, Total=407682 [2023-02-17 03:48:59,284 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 [2023-02-17 03:48:59,284 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] [2023-02-17 03:48:59,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2023-02-17 03:48:59,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 1433. [2023-02-17 03:48:59,383 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) [2023-02-17 03:48:59,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1473 transitions. [2023-02-17 03:48:59,394 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1473 transitions. Word has length 387 [2023-02-17 03:48:59,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 03:48:59,395 INFO L495 AbstractCegarLoop]: Abstraction has 1433 states and 1473 transitions. [2023-02-17 03:48:59,395 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) [2023-02-17 03:48:59,395 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1473 transitions. [2023-02-17 03:48:59,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2023-02-17 03:48:59,397 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 03:48:59,397 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2023-02-17 03:48:59,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2023-02-17 03:48:59,598 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 [2023-02-17 03:48:59,598 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)] === [2023-02-17 03:48:59,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 03:48:59,598 INFO L85 PathProgramCache]: Analyzing trace with hash -813633885, now seen corresponding path program 5 times [2023-02-17 03:48:59,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 03:48:59,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411765204] [2023-02-17 03:48:59,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 03:48:59,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 03:48:59,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 03:49:07,571 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:49:07,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 03:49:07,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411765204] [2023-02-17 03:49:07,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411765204] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 03:49:07,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810005209] [2023-02-17 03:49:07,571 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-17 03:49:07,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 03:49:07,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 03:49:07,572 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) [2023-02-17 03:49:07,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-02-17 03:49:07,868 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-17 03:49:07,868 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 03:49:07,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 143 conjunts are in the unsatisfiable core [2023-02-17 03:49:07,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 03:49:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:49:14,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 03:49:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 10672 backedges. 0 proven. 10672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 03:49:25,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810005209] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 03:49:25,654 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 03:49:25,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 427 [2023-02-17 03:49:25,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702423570] [2023-02-17 03:49:25,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 03:49:25,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 428 states [2023-02-17 03:49:25,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 03:49:25,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 428 interpolants. [2023-02-17 03:49:25,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22661, Invalid=160095, Unknown=0, NotChecked=0, Total=182756 [2023-02-17 03:49:25,681 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)