./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-restricted-15/DivMinus2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 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/termination-restricted-15/DivMinus2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 804e8d646f3136915195a4e5e9f5153cc3c1cd2abf96df3f09c683a14a27e4de --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 02:14:20,917 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 02:14:20,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 02:14:20,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 02:14:20,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 02:14:20,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 02:14:20,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 02:14:20,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 02:14:20,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 02:14:20,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 02:14:20,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 02:14:20,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 02:14:20,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 02:14:20,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 02:14:20,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 02:14:20,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 02:14:20,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 02:14:21,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 02:14:21,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 02:14:21,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 02:14:21,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 02:14:21,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 02:14:21,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 02:14:21,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 02:14:21,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 02:14:21,024 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 02:14:21,024 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 02:14:21,025 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 02:14:21,025 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 02:14:21,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 02:14:21,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 02:14:21,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 02:14:21,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 02:14:21,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 02:14:21,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 02:14:21,027 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 02:14:21,028 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 02:14:21,028 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 02:14:21,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 02:14:21,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 02:14:21,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 02:14:21,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 02:14:21,086 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 02:14:21,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 02:14:21,089 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 02:14:21,089 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 02:14:21,090 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 02:14:21,090 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 02:14:21,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 02:14:21,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 02:14:21,090 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 02:14:21,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 02:14:21,091 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 02:14:21,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 02:14:21,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 02:14:21,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 02:14:21,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 02:14:21,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 02:14:21,092 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 02:14:21,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 02:14:21,093 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 02:14:21,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 02:14:21,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 02:14:21,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 02:14:21,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 02:14:21,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:14:21,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 02:14:21,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 02:14:21,095 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 02:14:21,095 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 02:14:21,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 02:14:21,096 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 02:14:21,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 02:14:21,097 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 02:14:21,097 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 02:14:21,097 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 02:14:21,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 804e8d646f3136915195a4e5e9f5153cc3c1cd2abf96df3f09c683a14a27e4de [2023-02-15 02:14:21,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 02:14:21,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 02:14:21,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 02:14:21,295 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 02:14:21,295 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 02:14:21,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/DivMinus2.c [2023-02-15 02:14:22,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 02:14:22,672 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 02:14:22,672 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/DivMinus2.c [2023-02-15 02:14:22,676 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22d9df3e/d1a32598d09c4d6a843bb7a0e8a54332/FLAG7c5c22656 [2023-02-15 02:14:22,685 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22d9df3e/d1a32598d09c4d6a843bb7a0e8a54332 [2023-02-15 02:14:22,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 02:14:22,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 02:14:22,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 02:14:22,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 02:14:22,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 02:14:22,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@515e100e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22, skipping insertion in model container [2023-02-15 02:14:22,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 02:14:22,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 02:14:22,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:14:22,784 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 02:14:22,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 02:14:22,807 INFO L208 MainTranslator]: Completed translation [2023-02-15 02:14:22,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22 WrapperNode [2023-02-15 02:14:22,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 02:14:22,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 02:14:22,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 02:14:22,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 02:14:22,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,826 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2023-02-15 02:14:22,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 02:14:22,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 02:14:22,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 02:14:22,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 02:14:22,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,848 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 02:14:22,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 02:14:22,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 02:14:22,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 02:14:22,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (1/1) ... [2023-02-15 02:14:22,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 02:14:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:22,913 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) [2023-02-15 02:14:22,917 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 [2023-02-15 02:14:22,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 02:14:22,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 02:14:23,028 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 02:14:23,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 02:14:23,161 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 02:14:23,166 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 02:14:23,177 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 02:14:23,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:23 BoogieIcfgContainer [2023-02-15 02:14:23,179 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 02:14:23,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 02:14:23,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 02:14:23,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 02:14:23,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:14:22" (1/3) ... [2023-02-15 02:14:23,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6615d174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:14:23, skipping insertion in model container [2023-02-15 02:14:23,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:14:22" (2/3) ... [2023-02-15 02:14:23,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6615d174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:14:23, skipping insertion in model container [2023-02-15 02:14:23,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:14:23" (3/3) ... [2023-02-15 02:14:23,187 INFO L112 eAbstractionObserver]: Analyzing ICFG DivMinus2.c [2023-02-15 02:14:23,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 02:14:23,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-02-15 02:14:23,252 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 02:14:23,262 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;@a89ff04, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 02:14:23,262 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2023-02-15 02:14:23,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 28 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) [2023-02-15 02:14:23,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 02:14:23,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 02:14:23,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:23,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,275 INFO L85 PathProgramCache]: Analyzing trace with hash 28699908, now seen corresponding path program 1 times [2023-02-15 02:14:23,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697385672] [2023-02-15 02:14:23,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:23,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:23,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:23,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697385672] [2023-02-15 02:14:23,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697385672] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:23,387 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:23,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:14:23,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475819923] [2023-02-15 02:14:23,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:23,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:23,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:23,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:23,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,423 INFO L87 Difference]: Start difference. First operand has 29 states, 18 states have (on average 1.8333333333333333) internal successors, (33), 28 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:23,449 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2023-02-15 02:14:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:23,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 02:14:23,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:23,470 INFO L225 Difference]: With dead ends: 55 [2023-02-15 02:14:23,470 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 02:14:23,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,475 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:23,475 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 28 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:23,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 02:14:23,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-02-15 02:14:23,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 23 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2023-02-15 02:14:23,497 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 5 [2023-02-15 02:14:23,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:23,497 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2023-02-15 02:14:23,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,497 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2023-02-15 02:14:23,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:14:23,498 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:14:23,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 02:14:23,498 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:23,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,499 INFO L85 PathProgramCache]: Analyzing trace with hash 889697227, now seen corresponding path program 1 times [2023-02-15 02:14:23,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913516549] [2023-02-15 02:14:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:23,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:23,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913516549] [2023-02-15 02:14:23,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913516549] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:23,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:23,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:14:23,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155840025] [2023-02-15 02:14:23,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:23,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:23,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:23,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:23,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,525 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:23,535 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2023-02-15 02:14:23,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:23,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 02:14:23,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:23,537 INFO L225 Difference]: With dead ends: 46 [2023-02-15 02:14:23,538 INFO L226 Difference]: Without dead ends: 45 [2023-02-15 02:14:23,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,543 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:23,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:23,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-15 02:14:23,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2023-02-15 02:14:23,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.75) internal successors, (49), 36 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2023-02-15 02:14:23,556 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 6 [2023-02-15 02:14:23,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:23,556 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2023-02-15 02:14:23,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,557 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-02-15 02:14:23,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 02:14:23,557 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 02:14:23,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 02:14:23,558 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)] === [2023-02-15 02:14:23,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,562 INFO L85 PathProgramCache]: Analyzing trace with hash 889698701, now seen corresponding path program 1 times [2023-02-15 02:14:23,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12579372] [2023-02-15 02:14:23,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:23,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:23,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:23,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12579372] [2023-02-15 02:14:23,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12579372] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:23,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:23,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:14:23,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169378967] [2023-02-15 02:14:23,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:23,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:23,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:23,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:23,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,610 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:23,660 INFO L93 Difference]: Finished difference Result 74 states and 103 transitions. [2023-02-15 02:14:23,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:23,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 02:14:23,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:23,661 INFO L225 Difference]: With dead ends: 74 [2023-02-15 02:14:23,664 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 02:14:23,664 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 [2023-02-15 02:14:23,665 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:23,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 32 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:23,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 02:14:23,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-02-15 02:14:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 32 states have (on average 1.59375) internal successors, (51), 39 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2023-02-15 02:14:23,672 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 6 [2023-02-15 02:14:23,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:23,672 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2023-02-15 02:14:23,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2023-02-15 02:14:23,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 02:14:23,674 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:23,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 02:14:23,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:23,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1810846092, now seen corresponding path program 1 times [2023-02-15 02:14:23,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127607411] [2023-02-15 02:14:23,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:23,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:23,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:23,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127607411] [2023-02-15 02:14:23,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127607411] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:23,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:23,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 02:14:23,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950146304] [2023-02-15 02:14:23,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:23,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:14:23,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:23,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:14:23,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:14:23,722 INFO L87 Difference]: Start difference. First operand 40 states and 51 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) [2023-02-15 02:14:23,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:23,745 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2023-02-15 02:14:23,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:14:23,746 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 [2023-02-15 02:14:23,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:23,746 INFO L225 Difference]: With dead ends: 40 [2023-02-15 02:14:23,746 INFO L226 Difference]: Without dead ends: 39 [2023-02-15 02:14:23,747 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 [2023-02-15 02:14:23,747 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 38 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:23,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 15 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:23,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-02-15 02:14:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-02-15 02:14:23,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 32 states have (on average 1.53125) internal successors, (49), 38 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2023-02-15 02:14:23,753 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 7 [2023-02-15 02:14:23,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:23,753 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2023-02-15 02:14:23,753 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) [2023-02-15 02:14:23,753 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2023-02-15 02:14:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 02:14:23,754 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:23,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 02:14:23,754 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:23,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,755 INFO L85 PathProgramCache]: Analyzing trace with hash 301654063, now seen corresponding path program 1 times [2023-02-15 02:14:23,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987899119] [2023-02-15 02:14:23,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:23,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:23,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987899119] [2023-02-15 02:14:23,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987899119] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:23,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:23,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:14:23,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42121132] [2023-02-15 02:14:23,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:23,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:23,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:23,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,782 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:23,800 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2023-02-15 02:14:23,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:23,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 02:14:23,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:23,802 INFO L225 Difference]: With dead ends: 48 [2023-02-15 02:14:23,802 INFO L226 Difference]: Without dead ends: 47 [2023-02-15 02:14:23,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,803 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:23,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:23,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-15 02:14:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2023-02-15 02:14:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 44 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2023-02-15 02:14:23,809 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 8 [2023-02-15 02:14:23,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:23,809 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2023-02-15 02:14:23,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,809 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2023-02-15 02:14:23,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 02:14:23,810 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:23,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 02:14:23,810 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:23,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,811 INFO L85 PathProgramCache]: Analyzing trace with hash 761341422, now seen corresponding path program 1 times [2023-02-15 02:14:23,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627012481] [2023-02-15 02:14:23,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:23,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:23,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:23,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627012481] [2023-02-15 02:14:23,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627012481] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:23,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:23,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 02:14:23,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380931786] [2023-02-15 02:14:23,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:23,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 02:14:23,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:23,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 02:14:23,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,835 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2023-02-15 02:14:23,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:23,846 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2023-02-15 02:14:23,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 02:14:23,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 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 [2023-02-15 02:14:23,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:23,847 INFO L225 Difference]: With dead ends: 45 [2023-02-15 02:14:23,847 INFO L226 Difference]: Without dead ends: 44 [2023-02-15 02:14:23,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 02:14:23,848 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:23,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:23,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-02-15 02:14:23,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2023-02-15 02:14:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.394736842105263) internal successors, (53), 43 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 53 transitions. [2023-02-15 02:14:23,853 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 53 transitions. Word has length 9 [2023-02-15 02:14:23,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:23,853 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 53 transitions. [2023-02-15 02:14:23,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:23,854 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-02-15 02:14:23,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-15 02:14:23,854 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,854 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:23,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 02:14:23,855 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:23,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,855 INFO L85 PathProgramCache]: Analyzing trace with hash -599937306, now seen corresponding path program 1 times [2023-02-15 02:14:23,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238990292] [2023-02-15 02:14:23,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:23,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:23,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:23,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238990292] [2023-02-15 02:14:23,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238990292] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 02:14:23,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 02:14:23,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 02:14:23,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691305862] [2023-02-15 02:14:23,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 02:14:23,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 02:14:23,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:23,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 02:14:23,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:14:23,914 INFO L87 Difference]: Start difference. First operand 44 states and 53 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-02-15 02:14:23,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:23,939 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2023-02-15 02:14:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 02:14:23,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2023-02-15 02:14:23,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:23,940 INFO L225 Difference]: With dead ends: 68 [2023-02-15 02:14:23,940 INFO L226 Difference]: Without dead ends: 32 [2023-02-15 02:14:23,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 02:14:23,941 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:23,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 18 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:23,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-15 02:14:23,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2023-02-15 02:14:23,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.1666666666666667) internal successors, (35), 31 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) [2023-02-15 02:14:23,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2023-02-15 02:14:23,955 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 12 [2023-02-15 02:14:23,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:23,956 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2023-02-15 02:14:23,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2023-02-15 02:14:23,956 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2023-02-15 02:14:23,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 02:14:23,957 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:23,957 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 02:14:23,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 02:14:23,957 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:23,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:23,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1014439096, now seen corresponding path program 1 times [2023-02-15 02:14:23,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:23,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406552017] [2023-02-15 02:14:23,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:23,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:24,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:24,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406552017] [2023-02-15 02:14:24,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406552017] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:24,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41377540] [2023-02-15 02:14:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:24,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:24,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:24,063 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) [2023-02-15 02:14:24,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 02:14:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:24,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:14:24,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:24,146 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:14:24,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 02:14:24,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41377540] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:24,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:24,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 5] total 9 [2023-02-15 02:14:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594448856] [2023-02-15 02:14:24,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:24,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 02:14:24,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:24,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 02:14:24,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-02-15 02:14:24,237 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 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) [2023-02-15 02:14:24,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:24,271 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2023-02-15 02:14:24,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 02:14:24,272 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 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 14 [2023-02-15 02:14:24,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:24,272 INFO L225 Difference]: With dead ends: 32 [2023-02-15 02:14:24,272 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 02:14:24,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=90, Unknown=0, NotChecked=0, Total=156 [2023-02-15 02:14:24,273 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:24,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 16 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:24,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 02:14:24,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 23. [2023-02-15 02:14:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 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) [2023-02-15 02:14:24,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-02-15 02:14:24,277 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 14 [2023-02-15 02:14:24,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:24,277 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-02-15 02:14:24,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 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) [2023-02-15 02:14:24,278 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-02-15 02:14:24,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-02-15 02:14:24,278 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:24,278 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-02-15 02:14:24,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 02:14:24,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:24,484 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:24,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1224901626, now seen corresponding path program 1 times [2023-02-15 02:14:24,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:24,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648527092] [2023-02-15 02:14:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:24,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:24,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:24,515 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:14:24,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:24,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648527092] [2023-02-15 02:14:24,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648527092] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:24,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42480496] [2023-02-15 02:14:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:24,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:24,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:24,517 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) [2023-02-15 02:14:24,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 02:14:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:24,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 02:14:24,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:24,575 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:14:24,575 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:24,622 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 02:14:24,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42480496] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:24,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:24,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-15 02:14:24,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558596859] [2023-02-15 02:14:24,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:24,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-15 02:14:24,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:24,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-15 02:14:24,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:14:24,624 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:24,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:24,644 INFO L93 Difference]: Finished difference Result 54 states and 61 transitions. [2023-02-15 02:14:24,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 02:14:24,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 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 [2023-02-15 02:14:24,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:24,645 INFO L225 Difference]: With dead ends: 54 [2023-02-15 02:14:24,645 INFO L226 Difference]: Without dead ends: 53 [2023-02-15 02:14:24,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-15 02:14:24,646 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:24,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:24,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-02-15 02:14:24,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2023-02-15 02:14:24,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.1153846153846154) internal successors, (58), 52 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) [2023-02-15 02:14:24,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2023-02-15 02:14:24,652 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 22 [2023-02-15 02:14:24,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:24,652 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2023-02-15 02:14:24,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:24,652 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2023-02-15 02:14:24,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-15 02:14:24,653 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:24,653 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1] [2023-02-15 02:14:24,661 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 02:14:24,858 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,SelfDestructingSolverStorable8 [2023-02-15 02:14:24,858 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:24,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:24,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1165313452, now seen corresponding path program 2 times [2023-02-15 02:14:24,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:24,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726359828] [2023-02-15 02:14:24,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:24,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:24,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 02:14:24,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:24,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726359828] [2023-02-15 02:14:24,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726359828] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:24,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716798495] [2023-02-15 02:14:24,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 02:14:24,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:24,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:24,937 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) [2023-02-15 02:14:24,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 02:14:24,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 02:14:24,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:24,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 02:14:24,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:25,036 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 02:14:25,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:25,138 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 02:14:25,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716798495] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:25,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:25,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-15 02:14:25,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885331268] [2023-02-15 02:14:25,139 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:25,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 02:14:25,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:25,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 02:14:25,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:14:25,140 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:25,172 INFO L93 Difference]: Finished difference Result 114 states and 130 transitions. [2023-02-15 02:14:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-15 02:14:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2023-02-15 02:14:25,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:25,173 INFO L225 Difference]: With dead ends: 114 [2023-02-15 02:14:25,173 INFO L226 Difference]: Without dead ends: 113 [2023-02-15 02:14:25,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-15 02:14:25,174 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:25,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:25,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-02-15 02:14:25,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-02-15 02:14:25,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.1071428571428572) internal successors, (124), 112 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:25,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2023-02-15 02:14:25,190 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 52 [2023-02-15 02:14:25,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:25,190 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2023-02-15 02:14:25,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.363636363636363) internal successors, (103), 12 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2023-02-15 02:14:25,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-02-15 02:14:25,192 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:25,192 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 1, 1] [2023-02-15 02:14:25,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 02:14:25,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:25,398 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:25,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:25,399 INFO L85 PathProgramCache]: Analyzing trace with hash 723223928, now seen corresponding path program 3 times [2023-02-15 02:14:25,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:25,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668645490] [2023-02-15 02:14:25,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:25,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-02-15 02:14:25,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:25,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668645490] [2023-02-15 02:14:25,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668645490] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:25,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489649094] [2023-02-15 02:14:25,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 02:14:25,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:25,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:25,654 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) [2023-02-15 02:14:25,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 02:14:25,714 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 02:14:25,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:25,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 02:14:25,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-02-15 02:14:25,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-02-15 02:14:26,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489649094] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:26,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:26,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-15 02:14:26,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823370917] [2023-02-15 02:14:26,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:26,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 02:14:26,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:26,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 02:14:26,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 02:14:26,118 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand has 24 states, 23 states have (on average 9.695652173913043) internal successors, (223), 24 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:26,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:26,171 INFO L93 Difference]: Finished difference Result 234 states and 268 transitions. [2023-02-15 02:14:26,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-15 02:14:26,172 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 9.695652173913043) internal successors, (223), 24 states have internal predecessors, (223), 0 states have call successors, (0), 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 112 [2023-02-15 02:14:26,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:26,173 INFO L225 Difference]: With dead ends: 234 [2023-02-15 02:14:26,173 INFO L226 Difference]: Without dead ends: 233 [2023-02-15 02:14:26,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-15 02:14:26,174 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:26,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 191 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 02:14:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-02-15 02:14:26,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2023-02-15 02:14:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.103448275862069) internal successors, (256), 232 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:26,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 256 transitions. [2023-02-15 02:14:26,189 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 256 transitions. Word has length 112 [2023-02-15 02:14:26,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:26,190 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 256 transitions. [2023-02-15 02:14:26,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 9.695652173913043) internal successors, (223), 24 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:26,190 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 256 transitions. [2023-02-15 02:14:26,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-02-15 02:14:26,195 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:26,195 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 1, 1, 1] [2023-02-15 02:14:26,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 02:14:26,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:26,400 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:26,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:26,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1551026416, now seen corresponding path program 4 times [2023-02-15 02:14:26,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:26,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535283020] [2023-02-15 02:14:26,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:26,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:27,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 0 proven. 3036 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-02-15 02:14:27,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:27,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535283020] [2023-02-15 02:14:27,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535283020] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:27,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629719892] [2023-02-15 02:14:27,006 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 02:14:27,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:27,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:27,007 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) [2023-02-15 02:14:27,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 02:14:27,099 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 02:14:27,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:27,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 02:14:27,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:27,369 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 0 proven. 3036 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-02-15 02:14:27,369 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 3059 backedges. 0 proven. 3036 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-02-15 02:14:28,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629719892] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:28,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:28,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-15 02:14:28,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099015496] [2023-02-15 02:14:28,159 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:28,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-15 02:14:28,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:28,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-15 02:14:28,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 02:14:28,161 INFO L87 Difference]: Start difference. First operand 233 states and 256 transitions. Second operand has 48 states, 47 states have (on average 9.851063829787234) internal successors, (463), 48 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:28,337 INFO L93 Difference]: Finished difference Result 474 states and 544 transitions. [2023-02-15 02:14:28,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-15 02:14:28,338 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 9.851063829787234) internal successors, (463), 48 states have internal predecessors, (463), 0 states have call successors, (0), 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 232 [2023-02-15 02:14:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:28,340 INFO L225 Difference]: With dead ends: 474 [2023-02-15 02:14:28,340 INFO L226 Difference]: Without dead ends: 473 [2023-02-15 02:14:28,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-15 02:14:28,341 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:28,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 387 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 02:14:28,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-02-15 02:14:28,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2023-02-15 02:14:28,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 472 states have (on average 1.1016949152542372) internal successors, (520), 472 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 520 transitions. [2023-02-15 02:14:28,358 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 520 transitions. Word has length 232 [2023-02-15 02:14:28,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:28,358 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 520 transitions. [2023-02-15 02:14:28,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 9.851063829787234) internal successors, (463), 48 states have internal predecessors, (463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:28,359 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 520 transitions. [2023-02-15 02:14:28,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2023-02-15 02:14:28,363 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:28,363 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 47, 46, 1, 1, 1] [2023-02-15 02:14:28,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 02:14:28,568 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,SelfDestructingSolverStorable11 [2023-02-15 02:14:28,569 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:28,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:28,569 INFO L85 PathProgramCache]: Analyzing trace with hash 102326848, now seen corresponding path program 5 times [2023-02-15 02:14:28,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:28,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301893360] [2023-02-15 02:14:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:28,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:30,765 INFO L134 CoverageAnalysis]: Checked inductivity of 13019 backedges. 0 proven. 12972 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-02-15 02:14:30,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:30,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301893360] [2023-02-15 02:14:30,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301893360] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:30,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167250884] [2023-02-15 02:14:30,766 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 02:14:30,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:30,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:30,768 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) [2023-02-15 02:14:30,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 02:14:30,966 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 59 check-sat command(s) [2023-02-15 02:14:30,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:30,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 02:14:30,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 13019 backedges. 0 proven. 12972 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-02-15 02:14:31,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:34,050 INFO L134 CoverageAnalysis]: Checked inductivity of 13019 backedges. 0 proven. 12972 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-02-15 02:14:34,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167250884] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:34,051 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:34,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-15 02:14:34,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645945468] [2023-02-15 02:14:34,052 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:34,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-15 02:14:34,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:34,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-15 02:14:34,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 02:14:34,071 INFO L87 Difference]: Start difference. First operand 473 states and 520 transitions. Second operand has 96 states, 95 states have (on average 9.926315789473684) internal successors, (943), 96 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:34,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:34,683 INFO L93 Difference]: Finished difference Result 954 states and 1096 transitions. [2023-02-15 02:14:34,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-15 02:14:34,684 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 9.926315789473684) internal successors, (943), 96 states have internal predecessors, (943), 0 states have call successors, (0), 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 472 [2023-02-15 02:14:34,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:34,687 INFO L225 Difference]: With dead ends: 954 [2023-02-15 02:14:34,687 INFO L226 Difference]: Without dead ends: 953 [2023-02-15 02:14:34,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 896 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-15 02:14:34,692 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:34,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 769 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 02:14:34,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2023-02-15 02:14:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 953. [2023-02-15 02:14:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 952 states have (on average 1.1008403361344539) internal successors, (1048), 952 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:34,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1048 transitions. [2023-02-15 02:14:34,720 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1048 transitions. Word has length 472 [2023-02-15 02:14:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:34,720 INFO L495 AbstractCegarLoop]: Abstraction has 953 states and 1048 transitions. [2023-02-15 02:14:34,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 9.926315789473684) internal successors, (943), 96 states have internal predecessors, (943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1048 transitions. [2023-02-15 02:14:34,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2023-02-15 02:14:34,749 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:34,749 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 95, 95, 95, 95, 95, 95, 94, 1, 1, 1] [2023-02-15 02:14:34,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 02:14:34,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:34,956 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:34,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:34,957 INFO L85 PathProgramCache]: Analyzing trace with hash 645191840, now seen corresponding path program 6 times [2023-02-15 02:14:34,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:34,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611255276] [2023-02-15 02:14:34,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:34,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:14:43,065 INFO L134 CoverageAnalysis]: Checked inductivity of 53675 backedges. 0 proven. 53580 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-02-15 02:14:43,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:14:43,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611255276] [2023-02-15 02:14:43,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611255276] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:14:43,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884172123] [2023-02-15 02:14:43,066 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 02:14:43,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:43,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:14:43,067 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) [2023-02-15 02:14:43,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 02:14:43,491 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 119 check-sat command(s) [2023-02-15 02:14:43,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 02:14:43,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 1907 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 02:14:43,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:14:44,627 INFO L134 CoverageAnalysis]: Checked inductivity of 53675 backedges. 0 proven. 53580 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-02-15 02:14:44,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:14:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 53675 backedges. 0 proven. 53580 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2023-02-15 02:14:53,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884172123] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:14:53,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:14:53,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-15 02:14:53,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789811410] [2023-02-15 02:14:53,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:14:53,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-15 02:14:53,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:14:53,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-15 02:14:53,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 02:14:53,970 INFO L87 Difference]: Start difference. First operand 953 states and 1048 transitions. Second operand has 192 states, 191 states have (on average 9.963350785340314) internal successors, (1903), 192 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:55,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:14:55,661 INFO L93 Difference]: Finished difference Result 1914 states and 2200 transitions. [2023-02-15 02:14:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-15 02:14:55,662 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 9.963350785340314) internal successors, (1903), 192 states have internal predecessors, (1903), 0 states have call successors, (0), 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 952 [2023-02-15 02:14:55,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:14:55,680 INFO L225 Difference]: With dead ends: 1914 [2023-02-15 02:14:55,680 INFO L226 Difference]: Without dead ends: 1913 [2023-02-15 02:14:55,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1998 GetRequests, 1808 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-15 02:14:55,696 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 1527 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1538 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 02:14:55,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1538 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 02:14:55,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1913 states. [2023-02-15 02:14:55,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1913 to 1913. [2023-02-15 02:14:55,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1912 states have (on average 1.100418410041841) internal successors, (2104), 1912 states have internal predecessors, (2104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2104 transitions. [2023-02-15 02:14:55,789 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2104 transitions. Word has length 952 [2023-02-15 02:14:55,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:14:55,790 INFO L495 AbstractCegarLoop]: Abstraction has 1913 states and 2104 transitions. [2023-02-15 02:14:55,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 9.963350785340314) internal successors, (1903), 192 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:14:55,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2104 transitions. [2023-02-15 02:14:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1913 [2023-02-15 02:14:55,867 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:14:55,867 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 191, 191, 191, 191, 191, 191, 190, 1, 1, 1] [2023-02-15 02:14:55,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 02:14:56,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:14:56,076 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:14:56,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:14:56,076 INFO L85 PathProgramCache]: Analyzing trace with hash 959989088, now seen corresponding path program 7 times [2023-02-15 02:14:56,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:14:56,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528112108] [2023-02-15 02:14:56,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:14:56,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:14:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:15:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 217931 backedges. 0 proven. 217740 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-02-15 02:15:36,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 02:15:36,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528112108] [2023-02-15 02:15:36,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528112108] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 02:15:36,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418372955] [2023-02-15 02:15:36,913 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 02:15:36,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 02:15:36,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 02:15:36,927 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) [2023-02-15 02:15:36,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 02:15:37,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 02:15:37,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 3827 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-15 02:15:37,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 02:15:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 217931 backedges. 0 proven. 217740 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-02-15 02:15:39,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 02:16:08,407 INFO L134 CoverageAnalysis]: Checked inductivity of 217931 backedges. 0 proven. 217740 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-02-15 02:16:08,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418372955] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 02:16:08,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 02:16:08,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-15 02:16:08,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605107266] [2023-02-15 02:16:08,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 02:16:08,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-15 02:16:08,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 02:16:08,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-15 02:16:08,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-15 02:16:08,433 INFO L87 Difference]: Start difference. First operand 1913 states and 2104 transitions. Second operand has 384 states, 383 states have (on average 9.981723237597912) internal successors, (3823), 384 states have internal predecessors, (3823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:16:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 02:16:19,232 INFO L93 Difference]: Finished difference Result 3834 states and 4408 transitions. [2023-02-15 02:16:19,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-15 02:16:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 9.981723237597912) internal successors, (3823), 384 states have internal predecessors, (3823), 0 states have call successors, (0), 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 1912 [2023-02-15 02:16:19,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 02:16:19,259 INFO L225 Difference]: With dead ends: 3834 [2023-02-15 02:16:19,259 INFO L226 Difference]: Without dead ends: 3833 [2023-02-15 02:16:19,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4014 GetRequests, 3632 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.9s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-15 02:16:19,269 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 3066 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3077 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-15 02:16:19,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3077 Invalid, 777 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-15 02:16:19,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3833 states. [2023-02-15 02:16:19,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3833 to 3833. [2023-02-15 02:16:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 3832 states have (on average 1.1002087682672235) internal successors, (4216), 3832 states have internal predecessors, (4216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:16:19,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 4216 transitions. [2023-02-15 02:16:19,371 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 4216 transitions. Word has length 1912 [2023-02-15 02:16:19,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 02:16:19,372 INFO L495 AbstractCegarLoop]: Abstraction has 3833 states and 4216 transitions. [2023-02-15 02:16:19,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 9.981723237597912) internal successors, (3823), 384 states have internal predecessors, (3823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 02:16:19,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 4216 transitions. [2023-02-15 02:16:19,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3833 [2023-02-15 02:16:19,446 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 02:16:19,447 INFO L195 NwaCegarLoop]: trace histogram [383, 383, 383, 383, 383, 383, 383, 383, 383, 382, 1, 1, 1] [2023-02-15 02:16:19,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 02:16:19,656 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,SelfDestructingSolverStorable14 [2023-02-15 02:16:19,656 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2023-02-15 02:16:19,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 02:16:19,657 INFO L85 PathProgramCache]: Analyzing trace with hash -823058720, now seen corresponding path program 8 times [2023-02-15 02:16:19,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 02:16:19,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278067995] [2023-02-15 02:16:19,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 02:16:19,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 02:16:20,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat