./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6c24879c 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/bitvector/soft_float_4-3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 02:15:30,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 02:15:30,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 02:15:30,916 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 02:15:30,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 02:15:30,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 02:15:30,919 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 02:15:30,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 02:15:30,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 02:15:30,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 02:15:30,922 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 02:15:30,924 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 02:15:30,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 02:15:30,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 02:15:30,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 02:15:30,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 02:15:30,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 02:15:30,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 02:15:30,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 02:15:30,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 02:15:30,947 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 02:15:30,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 02:15:30,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 02:15:30,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 02:15:30,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 02:15:30,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 02:15:30,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 02:15:30,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 02:15:30,961 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 02:15:30,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 02:15:30,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 02:15:30,963 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 02:15:30,964 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 02:15:30,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 02:15:30,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 02:15:30,966 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 02:15:30,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 02:15:30,967 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 02:15:30,967 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 02:15:30,967 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 02:15:30,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 02:15:30,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 02:15:30,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-13 02:15:30,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 02:15:30,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 02:15:30,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 02:15:30,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 02:15:30,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 02:15:30,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 02:15:30,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 02:15:30,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 02:15:30,995 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 02:15:30,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 02:15:30,996 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 02:15:30,996 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 02:15:30,996 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 02:15:30,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 02:15:30,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 02:15:30,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 02:15:30,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 02:15:30,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 02:15:30,997 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 02:15:30,997 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 02:15:30,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 02:15:30,997 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 02:15:30,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 02:15:30,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 02:15:30,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 02:15:30,998 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 02:15:30,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:15:30,998 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 02:15:30,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 02:15:30,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 02:15:30,999 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 02:15:30,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 02:15:30,999 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 02:15:30,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7e459611ed6ff9d4c49aa04980ca7f1d5aaaf97e8fc0116c264955df4ed453a [2022-07-13 02:15:31,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 02:15:31,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 02:15:31,203 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 02:15:31,204 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 02:15:31,204 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 02:15:31,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2022-07-13 02:15:31,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb35bf15c/f42973533ad642ec835930005b392893/FLAG4e4aa48a7 [2022-07-13 02:15:31,671 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 02:15:31,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2022-07-13 02:15:31,681 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb35bf15c/f42973533ad642ec835930005b392893/FLAG4e4aa48a7 [2022-07-13 02:15:31,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb35bf15c/f42973533ad642ec835930005b392893 [2022-07-13 02:15:31,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 02:15:31,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 02:15:31,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 02:15:31,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 02:15:31,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 02:15:31,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:15:31" (1/1) ... [2022-07-13 02:15:31,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6a2e27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:31, skipping insertion in model container [2022-07-13 02:15:31,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 02:15:31" (1/1) ... [2022-07-13 02:15:31,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 02:15:31,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 02:15:31,892 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2022-07-13 02:15:31,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:15:31,971 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 02:15:31,981 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c[730,743] [2022-07-13 02:15:32,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 02:15:32,029 INFO L208 MainTranslator]: Completed translation [2022-07-13 02:15:32,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32 WrapperNode [2022-07-13 02:15:32,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 02:15:32,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 02:15:32,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 02:15:32,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 02:15:32,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,058 INFO L137 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-07-13 02:15:32,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 02:15:32,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 02:15:32,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 02:15:32,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 02:15:32,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 02:15:32,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 02:15:32,080 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 02:15:32,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 02:15:32,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (1/1) ... [2022-07-13 02:15:32,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 02:15:32,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:32,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 02:15:32,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 02:15:32,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 02:15:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 02:15:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-13 02:15:32,142 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-13 02:15:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 02:15:32,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 02:15:32,142 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-07-13 02:15:32,142 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-07-13 02:15:32,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-13 02:15:32,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-13 02:15:32,211 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 02:15:32,213 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 02:15:32,539 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 02:15:32,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 02:15:32,545 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 02:15:32,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:15:32 BoogieIcfgContainer [2022-07-13 02:15:32,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 02:15:32,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 02:15:32,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 02:15:32,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 02:15:32,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 02:15:31" (1/3) ... [2022-07-13 02:15:32,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523edb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:15:32, skipping insertion in model container [2022-07-13 02:15:32,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 02:15:32" (2/3) ... [2022-07-13 02:15:32,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523edb6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 02:15:32, skipping insertion in model container [2022-07-13 02:15:32,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:15:32" (3/3) ... [2022-07-13 02:15:32,554 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2022-07-13 02:15:32,564 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 02:15:32,564 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-07-13 02:15:32,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 02:15:32,611 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e4c665c, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@a5bfbc0 [2022-07-13 02:15:32,611 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-13 02:15:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 91 states have (on average 1.7692307692307692) internal successors, (161), 111 states have internal predecessors, (161), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 02:15:32,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:15:32,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:32,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:32,624 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:32,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash -618414996, now seen corresponding path program 1 times [2022-07-13 02:15:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:32,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983082545] [2022-07-13 02:15:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:32,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:32,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983082545] [2022-07-13 02:15:32,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983082545] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:32,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:32,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 02:15:32,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120856191] [2022-07-13 02:15:32,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:32,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 02:15:32,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:32,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 02:15:32,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:15:32,787 INFO L87 Difference]: Start difference. First operand has 124 states, 91 states have (on average 1.7692307692307692) internal successors, (161), 111 states have internal predecessors, (161), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:32,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:32,835 INFO L93 Difference]: Finished difference Result 243 states and 363 transitions. [2022-07-13 02:15:32,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 02:15:32,837 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 02:15:32,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:32,843 INFO L225 Difference]: With dead ends: 243 [2022-07-13 02:15:32,844 INFO L226 Difference]: Without dead ends: 112 [2022-07-13 02:15:32,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 02:15:32,852 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:32,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:32,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-13 02:15:32,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-07-13 02:15:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 83 states have (on average 1.5783132530120483) internal successors, (131), 101 states have internal predecessors, (131), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:32,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 146 transitions. [2022-07-13 02:15:32,900 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 146 transitions. Word has length 9 [2022-07-13 02:15:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:32,900 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 146 transitions. [2022-07-13 02:15:32,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 146 transitions. [2022-07-13 02:15:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 02:15:32,902 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:32,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:32,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 02:15:32,903 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:32,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:32,904 INFO L85 PathProgramCache]: Analyzing trace with hash -619356344, now seen corresponding path program 1 times [2022-07-13 02:15:32,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:32,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094907787] [2022-07-13 02:15:32,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:32,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:33,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:33,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:33,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094907787] [2022-07-13 02:15:33,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094907787] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:33,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:33,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:15:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147942023] [2022-07-13 02:15:33,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:33,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:15:33,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:33,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:15:33,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:15:33,014 INFO L87 Difference]: Start difference. First operand 112 states and 146 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:33,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:33,132 INFO L93 Difference]: Finished difference Result 283 states and 383 transitions. [2022-07-13 02:15:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:15:33,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-13 02:15:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:33,135 INFO L225 Difference]: With dead ends: 283 [2022-07-13 02:15:33,137 INFO L226 Difference]: Without dead ends: 174 [2022-07-13 02:15:33,138 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 [2022-07-13 02:15:33,139 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 106 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:33,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 388 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:15:33,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-13 02:15:33,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-07-13 02:15:33,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 131 states have (on average 1.5725190839694656) internal successors, (206), 149 states have internal predecessors, (206), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:33,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 221 transitions. [2022-07-13 02:15:33,157 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 221 transitions. Word has length 9 [2022-07-13 02:15:33,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:33,158 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 221 transitions. [2022-07-13 02:15:33,159 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 221 transitions. [2022-07-13 02:15:33,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 02:15:33,160 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:33,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:33,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 02:15:33,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:33,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2023794271, now seen corresponding path program 1 times [2022-07-13 02:15:33,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:33,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655238325] [2022-07-13 02:15:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:33,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:33,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:33,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655238325] [2022-07-13 02:15:33,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655238325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:33,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:33,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:15:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819065108] [2022-07-13 02:15:33,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:33,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:15:33,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:15:33,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:15:33,207 INFO L87 Difference]: Start difference. First operand 161 states and 221 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:33,346 INFO L93 Difference]: Finished difference Result 196 states and 260 transitions. [2022-07-13 02:15:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:15:33,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-13 02:15:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:33,349 INFO L225 Difference]: With dead ends: 196 [2022-07-13 02:15:33,349 INFO L226 Difference]: Without dead ends: 193 [2022-07-13 02:15:33,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:33,351 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 161 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:33,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 519 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:15:33,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-13 02:15:33,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 168. [2022-07-13 02:15:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 138 states have (on average 1.5724637681159421) internal successors, (217), 156 states have internal predecessors, (217), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 232 transitions. [2022-07-13 02:15:33,365 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 232 transitions. Word has length 13 [2022-07-13 02:15:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:33,365 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 232 transitions. [2022-07-13 02:15:33,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 232 transitions. [2022-07-13 02:15:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-13 02:15:33,366 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:33,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:33,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 02:15:33,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1686887160, now seen corresponding path program 1 times [2022-07-13 02:15:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:33,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969960835] [2022-07-13 02:15:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:33,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:33,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:33,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:33,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969960835] [2022-07-13 02:15:33,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969960835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:33,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:33,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:15:33,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312869498] [2022-07-13 02:15:33,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:33,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:15:33,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:33,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:15:33,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:15:33,416 INFO L87 Difference]: Start difference. First operand 168 states and 232 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:33,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:33,562 INFO L93 Difference]: Finished difference Result 316 states and 422 transitions. [2022-07-13 02:15:33,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:15:33,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-13 02:15:33,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:33,566 INFO L225 Difference]: With dead ends: 316 [2022-07-13 02:15:33,566 INFO L226 Difference]: Without dead ends: 203 [2022-07-13 02:15:33,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:33,575 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 165 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:33,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 529 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:15:33,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-07-13 02:15:33,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 172. [2022-07-13 02:15:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 142 states have (on average 1.5492957746478873) internal successors, (220), 160 states have internal predecessors, (220), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:33,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 235 transitions. [2022-07-13 02:15:33,589 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 235 transitions. Word has length 14 [2022-07-13 02:15:33,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:33,589 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 235 transitions. [2022-07-13 02:15:33,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:33,589 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 235 transitions. [2022-07-13 02:15:33,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-13 02:15:33,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:33,590 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:33,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 02:15:33,590 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:33,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:33,591 INFO L85 PathProgramCache]: Analyzing trace with hash 564430704, now seen corresponding path program 1 times [2022-07-13 02:15:33,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:33,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794459573] [2022-07-13 02:15:33,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:33,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:33,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:33,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:33,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:33,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:33,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794459573] [2022-07-13 02:15:33,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794459573] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:33,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731715848] [2022-07-13 02:15:33,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:33,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:33,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:33,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:33,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 02:15:33,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:33,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:15:33,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:33,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:33,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731715848] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:33,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:33,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-13 02:15:33,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321985029] [2022-07-13 02:15:33,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:33,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:15:33,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:33,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:15:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:15:33,743 INFO L87 Difference]: Start difference. First operand 172 states and 235 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:15:33,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:33,821 INFO L93 Difference]: Finished difference Result 242 states and 332 transitions. [2022-07-13 02:15:33,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:15:33,822 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-13 02:15:33,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:33,824 INFO L225 Difference]: With dead ends: 242 [2022-07-13 02:15:33,824 INFO L226 Difference]: Without dead ends: 238 [2022-07-13 02:15:33,828 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:33,829 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 122 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:33,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 485 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:15:33,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-13 02:15:33,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 208. [2022-07-13 02:15:33,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 178 states have (on average 1.5730337078651686) internal successors, (280), 195 states have internal predecessors, (280), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:33,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 295 transitions. [2022-07-13 02:15:33,849 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 295 transitions. Word has length 16 [2022-07-13 02:15:33,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:33,850 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 295 transitions. [2022-07-13 02:15:33,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:15:33,850 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 295 transitions. [2022-07-13 02:15:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-13 02:15:33,850 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:33,851 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:33,870 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:34,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:34,068 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:34,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:34,068 INFO L85 PathProgramCache]: Analyzing trace with hash -864836854, now seen corresponding path program 1 times [2022-07-13 02:15:34,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:34,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193110258] [2022-07-13 02:15:34,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:34,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:34,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:34,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193110258] [2022-07-13 02:15:34,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193110258] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:34,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [458879619] [2022-07-13 02:15:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:34,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:34,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:34,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:34,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 02:15:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 02:15:34,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:34,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:34,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:34,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [458879619] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:34,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:34,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-13 02:15:34,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995272585] [2022-07-13 02:15:34,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:34,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:15:34,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:34,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:15:34,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:34,171 INFO L87 Difference]: Start difference. First operand 208 states and 295 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:34,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:34,217 INFO L93 Difference]: Finished difference Result 260 states and 366 transitions. [2022-07-13 02:15:34,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:15:34,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-13 02:15:34,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:34,219 INFO L225 Difference]: With dead ends: 260 [2022-07-13 02:15:34,219 INFO L226 Difference]: Without dead ends: 258 [2022-07-13 02:15:34,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:34,220 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 26 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:34,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 417 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:34,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-07-13 02:15:34,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 201. [2022-07-13 02:15:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 171 states have (on average 1.5497076023391814) internal successors, (265), 188 states have internal predecessors, (265), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:34,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 280 transitions. [2022-07-13 02:15:34,227 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 280 transitions. Word has length 15 [2022-07-13 02:15:34,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:34,228 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 280 transitions. [2022-07-13 02:15:34,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:34,228 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 280 transitions. [2022-07-13 02:15:34,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-13 02:15:34,229 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:34,229 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:34,247 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:34,439 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,SelfDestructingSolverStorable5 [2022-07-13 02:15:34,440 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:34,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:34,440 INFO L85 PathProgramCache]: Analyzing trace with hash 317482697, now seen corresponding path program 1 times [2022-07-13 02:15:34,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:34,440 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520361838] [2022-07-13 02:15:34,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:34,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-13 02:15:34,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:34,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520361838] [2022-07-13 02:15:34,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520361838] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:34,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238550259] [2022-07-13 02:15:34,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:34,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:34,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:34,469 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:34,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 02:15:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 02:15:34,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:34,511 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:15:34,511 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:34,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238550259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:34,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:34,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-07-13 02:15:34,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440643831] [2022-07-13 02:15:34,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:34,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:15:34,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:34,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:15:34,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:15:34,513 INFO L87 Difference]: Start difference. First operand 201 states and 280 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:15:34,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:34,543 INFO L93 Difference]: Finished difference Result 210 states and 289 transitions. [2022-07-13 02:15:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:15:34,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-13 02:15:34,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:34,545 INFO L225 Difference]: With dead ends: 210 [2022-07-13 02:15:34,545 INFO L226 Difference]: Without dead ends: 209 [2022-07-13 02:15:34,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:15:34,546 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 3 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:34,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 266 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:34,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-07-13 02:15:34,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2022-07-13 02:15:34,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 169 states have (on average 1.5384615384615385) internal successors, (260), 185 states have internal predecessors, (260), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:34,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 275 transitions. [2022-07-13 02:15:34,554 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 275 transitions. Word has length 17 [2022-07-13 02:15:34,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:34,554 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 275 transitions. [2022-07-13 02:15:34,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:15:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 275 transitions. [2022-07-13 02:15:34,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-13 02:15:34,558 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:34,558 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:34,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:34,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:34,768 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:34,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:34,768 INFO L85 PathProgramCache]: Analyzing trace with hash 2139477144, now seen corresponding path program 1 times [2022-07-13 02:15:34,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:34,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888738240] [2022-07-13 02:15:34,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:34,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:34,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:34,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888738240] [2022-07-13 02:15:34,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888738240] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:34,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286711987] [2022-07-13 02:15:34,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:34,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:34,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:34,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:34,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 02:15:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:34,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:15:34,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:34,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:15:34,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:34,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286711987] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:34,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:34,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-13 02:15:34,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119138024] [2022-07-13 02:15:34,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:34,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:15:34,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:34,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:15:34,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:15:34,893 INFO L87 Difference]: Start difference. First operand 198 states and 275 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:15:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:34,959 INFO L93 Difference]: Finished difference Result 241 states and 329 transitions. [2022-07-13 02:15:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:15:34,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-07-13 02:15:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:34,961 INFO L225 Difference]: With dead ends: 241 [2022-07-13 02:15:34,962 INFO L226 Difference]: Without dead ends: 238 [2022-07-13 02:15:34,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:34,963 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 107 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:34,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 486 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:15:34,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-13 02:15:34,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2022-07-13 02:15:34,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 177 states have (on average 1.5310734463276836) internal successors, (271), 193 states have internal predecessors, (271), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:34,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 286 transitions. [2022-07-13 02:15:34,973 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 286 transitions. Word has length 18 [2022-07-13 02:15:34,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:34,974 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 286 transitions. [2022-07-13 02:15:34,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-13 02:15:34,974 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 286 transitions. [2022-07-13 02:15:34,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-13 02:15:34,974 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:34,974 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:34,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:35,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:35,186 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:35,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:35,186 INFO L85 PathProgramCache]: Analyzing trace with hash 251531834, now seen corresponding path program 1 times [2022-07-13 02:15:35,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:35,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102072663] [2022-07-13 02:15:35,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:35,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,221 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-13 02:15:35,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:35,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102072663] [2022-07-13 02:15:35,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102072663] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:35,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:35,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 02:15:35,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821622949] [2022-07-13 02:15:35,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:35,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:15:35,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:35,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:15:35,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:15:35,223 INFO L87 Difference]: Start difference. First operand 206 states and 286 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:35,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:35,271 INFO L93 Difference]: Finished difference Result 261 states and 362 transitions. [2022-07-13 02:15:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:15:35,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-13 02:15:35,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:35,273 INFO L225 Difference]: With dead ends: 261 [2022-07-13 02:15:35,273 INFO L226 Difference]: Without dead ends: 259 [2022-07-13 02:15:35,274 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:15:35,276 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 27 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:35,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 287 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:35,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-07-13 02:15:35,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 206. [2022-07-13 02:15:35,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 177 states have (on average 1.5197740112994351) internal successors, (269), 193 states have internal predecessors, (269), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 284 transitions. [2022-07-13 02:15:35,284 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 284 transitions. Word has length 19 [2022-07-13 02:15:35,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:35,285 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 284 transitions. [2022-07-13 02:15:35,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 02:15:35,286 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 284 transitions. [2022-07-13 02:15:35,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 02:15:35,286 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:35,287 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:35,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-13 02:15:35,287 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:35,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:35,287 INFO L85 PathProgramCache]: Analyzing trace with hash -125890422, now seen corresponding path program 1 times [2022-07-13 02:15:35,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:35,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029737115] [2022-07-13 02:15:35,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:35,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,343 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 02:15:35,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:35,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029737115] [2022-07-13 02:15:35,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029737115] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:35,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064871335] [2022-07-13 02:15:35,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:35,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:35,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:35,345 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:35,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 02:15:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:15:35,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 02:15:35,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:35,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064871335] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:35,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:35,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-13 02:15:35,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964075759] [2022-07-13 02:15:35,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:35,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:15:35,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:35,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:15:35,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:15:35,423 INFO L87 Difference]: Start difference. First operand 206 states and 284 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 02:15:35,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:35,489 INFO L93 Difference]: Finished difference Result 236 states and 325 transitions. [2022-07-13 02:15:35,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:15:35,489 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-07-13 02:15:35,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:35,491 INFO L225 Difference]: With dead ends: 236 [2022-07-13 02:15:35,491 INFO L226 Difference]: Without dead ends: 233 [2022-07-13 02:15:35,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:35,492 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 112 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:35,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 483 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:35,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-13 02:15:35,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 194. [2022-07-13 02:15:35,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 168 states have (on average 1.4821428571428572) internal successors, (249), 181 states have internal predecessors, (249), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:35,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 264 transitions. [2022-07-13 02:15:35,501 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 264 transitions. Word has length 23 [2022-07-13 02:15:35,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:35,501 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 264 transitions. [2022-07-13 02:15:35,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 02:15:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 264 transitions. [2022-07-13 02:15:35,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-13 02:15:35,502 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:35,502 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:35,522 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:35,715 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,SelfDestructingSolverStorable9 [2022-07-13 02:15:35,716 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:35,716 INFO L85 PathProgramCache]: Analyzing trace with hash 165838642, now seen corresponding path program 1 times [2022-07-13 02:15:35,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:35,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142050657] [2022-07-13 02:15:35,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:35,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,751 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 02:15:35,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:35,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142050657] [2022-07-13 02:15:35,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142050657] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:35,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261937262] [2022-07-13 02:15:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:35,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:35,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:35,753 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:35,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 02:15:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:35,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:15:35,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 02:15:35,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:35,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261937262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:35,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:35,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-13 02:15:35,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149495120] [2022-07-13 02:15:35,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:35,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-13 02:15:35,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:35,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-13 02:15:35,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:15:35,819 INFO L87 Difference]: Start difference. First operand 194 states and 264 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 02:15:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:35,880 INFO L93 Difference]: Finished difference Result 224 states and 304 transitions. [2022-07-13 02:15:35,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 02:15:35,881 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-07-13 02:15:35,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:35,881 INFO L225 Difference]: With dead ends: 224 [2022-07-13 02:15:35,881 INFO L226 Difference]: Without dead ends: 221 [2022-07-13 02:15:35,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:35,882 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 96 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:35,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 489 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:35,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-07-13 02:15:35,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 183. [2022-07-13 02:15:35,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 160 states have (on average 1.4625) internal successors, (234), 170 states have internal predecessors, (234), 8 states have call successors, (8), 5 states have call predecessors, (8), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-07-13 02:15:35,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 249 transitions. [2022-07-13 02:15:35,888 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 249 transitions. Word has length 25 [2022-07-13 02:15:35,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:35,889 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 249 transitions. [2022-07-13 02:15:35,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 02:15:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 249 transitions. [2022-07-13 02:15:35,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-13 02:15:35,889 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:35,889 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:35,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:36,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:36,101 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:36,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:36,101 INFO L85 PathProgramCache]: Analyzing trace with hash 340378026, now seen corresponding path program 1 times [2022-07-13 02:15:36,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:36,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598313140] [2022-07-13 02:15:36,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:36,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:36,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:36,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:36,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 02:15:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:36,171 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:36,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:36,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598313140] [2022-07-13 02:15:36,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598313140] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:36,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426854781] [2022-07-13 02:15:36,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:36,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:36,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:36,173 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:36,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:15:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:36,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-13 02:15:36,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 02:15:36,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:36,418 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:36,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426854781] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:36,418 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:36,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 9] total 19 [2022-07-13 02:15:36,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100048541] [2022-07-13 02:15:36,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:36,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 02:15:36,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:36,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 02:15:36,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:15:36,419 INFO L87 Difference]: Start difference. First operand 183 states and 249 transitions. Second operand has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-13 02:15:37,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:37,609 INFO L93 Difference]: Finished difference Result 601 states and 806 transitions. [2022-07-13 02:15:37,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 02:15:37,609 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2022-07-13 02:15:37,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:37,611 INFO L225 Difference]: With dead ends: 601 [2022-07-13 02:15:37,611 INFO L226 Difference]: Without dead ends: 423 [2022-07-13 02:15:37,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=187, Invalid=1145, Unknown=0, NotChecked=0, Total=1332 [2022-07-13 02:15:37,612 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 618 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:37,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 631 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 02:15:37,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-13 02:15:37,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 155. [2022-07-13 02:15:37,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 128 states have (on average 1.4296875) internal successors, (183), 139 states have internal predecessors, (183), 10 states have call successors, (10), 6 states have call predecessors, (10), 7 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2022-07-13 02:15:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 203 transitions. [2022-07-13 02:15:37,623 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 203 transitions. Word has length 30 [2022-07-13 02:15:37,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:37,623 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 203 transitions. [2022-07-13 02:15:37,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-13 02:15:37,623 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 203 transitions. [2022-07-13 02:15:37,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-13 02:15:37,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:37,624 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:37,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:37,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:37,839 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:37,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:37,840 INFO L85 PathProgramCache]: Analyzing trace with hash -809815083, now seen corresponding path program 1 times [2022-07-13 02:15:37,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:37,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13211222] [2022-07-13 02:15:37,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:37,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:37,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:37,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:37,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 02:15:37,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:37,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:37,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13211222] [2022-07-13 02:15:37,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13211222] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:37,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:37,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 02:15:37,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570998273] [2022-07-13 02:15:37,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:37,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:15:37,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:37,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:15:37,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:15:37,931 INFO L87 Difference]: Start difference. First operand 155 states and 203 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:15:38,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:38,421 INFO L93 Difference]: Finished difference Result 404 states and 522 transitions. [2022-07-13 02:15:38,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:15:38,422 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-13 02:15:38,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:38,423 INFO L225 Difference]: With dead ends: 404 [2022-07-13 02:15:38,423 INFO L226 Difference]: Without dead ends: 330 [2022-07-13 02:15:38,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:15:38,424 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 415 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:38,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 501 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:15:38,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-13 02:15:38,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 166. [2022-07-13 02:15:38,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 136 states have (on average 1.4044117647058822) internal successors, (191), 148 states have internal predecessors, (191), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2022-07-13 02:15:38,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 215 transitions. [2022-07-13 02:15:38,432 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 215 transitions. Word has length 37 [2022-07-13 02:15:38,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:38,432 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 215 transitions. [2022-07-13 02:15:38,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:15:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 215 transitions. [2022-07-13 02:15:38,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-13 02:15:38,433 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:38,433 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:38,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-13 02:15:38,433 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:38,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash 311287935, now seen corresponding path program 1 times [2022-07-13 02:15:38,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:38,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122919741] [2022-07-13 02:15:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:38,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:38,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:38,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:38,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:38,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-13 02:15:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 02:15:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:38,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:38,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122919741] [2022-07-13 02:15:38,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122919741] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:38,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668414291] [2022-07-13 02:15:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:38,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:38,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:38,513 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:38,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-13 02:15:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:38,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-13 02:15:38,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:38,709 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:38,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:38,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668414291] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:38,756 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:38,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 19 [2022-07-13 02:15:38,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373726257] [2022-07-13 02:15:38,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:38,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 02:15:38,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:38,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 02:15:38,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:15:38,758 INFO L87 Difference]: Start difference. First operand 166 states and 215 transitions. Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 02:15:40,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:40,857 INFO L93 Difference]: Finished difference Result 793 states and 1023 transitions. [2022-07-13 02:15:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-13 02:15:40,858 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 41 [2022-07-13 02:15:40,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:40,860 INFO L225 Difference]: With dead ends: 793 [2022-07-13 02:15:40,860 INFO L226 Difference]: Without dead ends: 704 [2022-07-13 02:15:40,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=1193, Unknown=0, NotChecked=0, Total=1406 [2022-07-13 02:15:40,861 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 1733 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 3847 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1736 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 4044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 3847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:40,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1736 Valid, 359 Invalid, 4044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 3847 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-13 02:15:40,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-13 02:15:40,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 153. [2022-07-13 02:15:40,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 127 states have (on average 1.4094488188976377) internal successors, (179), 138 states have internal predecessors, (179), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-13 02:15:40,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 197 transitions. [2022-07-13 02:15:40,881 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 197 transitions. Word has length 41 [2022-07-13 02:15:40,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:40,882 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 197 transitions. [2022-07-13 02:15:40,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 02:15:40,882 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 197 transitions. [2022-07-13 02:15:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-13 02:15:40,882 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:40,882 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:40,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:41,099 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,SelfDestructingSolverStorable13 [2022-07-13 02:15:41,100 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:41,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:41,100 INFO L85 PathProgramCache]: Analyzing trace with hash -1966221434, now seen corresponding path program 2 times [2022-07-13 02:15:41,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:41,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829281181] [2022-07-13 02:15:41,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:41,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:41,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:41,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:41,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:41,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 02:15:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:41,228 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-13 02:15:41,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:41,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829281181] [2022-07-13 02:15:41,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829281181] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:41,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:41,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 02:15:41,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671276914] [2022-07-13 02:15:41,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:41,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 02:15:41,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:41,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 02:15:41,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 02:15:41,230 INFO L87 Difference]: Start difference. First operand 153 states and 197 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:15:42,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:42,000 INFO L93 Difference]: Finished difference Result 480 states and 620 transitions. [2022-07-13 02:15:42,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:15:42,001 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-13 02:15:42,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:42,002 INFO L225 Difference]: With dead ends: 480 [2022-07-13 02:15:42,003 INFO L226 Difference]: Without dead ends: 410 [2022-07-13 02:15:42,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-13 02:15:42,003 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 635 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:42,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 666 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-13 02:15:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-13 02:15:42,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 227. [2022-07-13 02:15:42,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 195 states have (on average 1.4102564102564104) internal successors, (275), 207 states have internal predecessors, (275), 13 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-07-13 02:15:42,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 302 transitions. [2022-07-13 02:15:42,015 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 302 transitions. Word has length 41 [2022-07-13 02:15:42,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:42,016 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 302 transitions. [2022-07-13 02:15:42,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:15:42,016 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 302 transitions. [2022-07-13 02:15:42,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-13 02:15:42,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:42,016 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:42,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-13 02:15:42,017 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:42,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:42,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1519399236, now seen corresponding path program 1 times [2022-07-13 02:15:42,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:42,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766666825] [2022-07-13 02:15:42,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:42,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:42,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:42,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:42,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:42,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 02:15:42,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-13 02:15:42,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:42,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766666825] [2022-07-13 02:15:42,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766666825] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:42,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [757780616] [2022-07-13 02:15:42,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:42,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:42,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:42,120 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:42,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-13 02:15:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:42,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-13 02:15:42,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-13 02:15:42,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:42,368 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-13 02:15:42,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [757780616] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:42,368 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:42,369 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 16 [2022-07-13 02:15:42,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191212431] [2022-07-13 02:15:42,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:42,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-13 02:15:42,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:42,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-13 02:15:42,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-13 02:15:42,370 INFO L87 Difference]: Start difference. First operand 227 states and 302 transitions. Second operand has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-13 02:15:43,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:43,207 INFO L93 Difference]: Finished difference Result 624 states and 842 transitions. [2022-07-13 02:15:43,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:15:43,207 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-07-13 02:15:43,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:43,209 INFO L225 Difference]: With dead ends: 624 [2022-07-13 02:15:43,209 INFO L226 Difference]: Without dead ends: 492 [2022-07-13 02:15:43,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2022-07-13 02:15:43,210 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 526 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:43,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 677 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 02:15:43,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-13 02:15:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 338. [2022-07-13 02:15:43,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 294 states have (on average 1.4081632653061225) internal successors, (414), 307 states have internal predecessors, (414), 22 states have call successors, (22), 9 states have call predecessors, (22), 12 states have return successors, (26), 21 states have call predecessors, (26), 21 states have call successors, (26) [2022-07-13 02:15:43,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 462 transitions. [2022-07-13 02:15:43,229 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 462 transitions. Word has length 41 [2022-07-13 02:15:43,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:43,230 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 462 transitions. [2022-07-13 02:15:43,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-13 02:15:43,230 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 462 transitions. [2022-07-13 02:15:43,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-13 02:15:43,231 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:43,231 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:43,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:43,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-13 02:15:43,443 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:43,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:43,444 INFO L85 PathProgramCache]: Analyzing trace with hash -440801234, now seen corresponding path program 1 times [2022-07-13 02:15:43,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:43,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089630725] [2022-07-13 02:15:43,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:43,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:43,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:43,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 02:15:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:15:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:43,518 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:43,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:43,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089630725] [2022-07-13 02:15:43,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089630725] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:43,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173683298] [2022-07-13 02:15:43,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:43,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:43,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:43,532 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:43,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-13 02:15:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:43,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-13 02:15:43,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:43,627 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-13 02:15:43,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:43,741 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-13 02:15:43,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173683298] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:43,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-13 02:15:43,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 11] total 20 [2022-07-13 02:15:43,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255041663] [2022-07-13 02:15:43,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:43,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-13 02:15:43,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:43,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-13 02:15:43,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-07-13 02:15:43,743 INFO L87 Difference]: Start difference. First operand 338 states and 462 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 02:15:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:43,910 INFO L93 Difference]: Finished difference Result 695 states and 959 transitions. [2022-07-13 02:15:43,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-13 02:15:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2022-07-13 02:15:43,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:43,913 INFO L225 Difference]: With dead ends: 695 [2022-07-13 02:15:43,913 INFO L226 Difference]: Without dead ends: 607 [2022-07-13 02:15:43,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-07-13 02:15:43,914 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 174 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:43,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1769 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:15:43,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-13 02:15:43,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 327. [2022-07-13 02:15:43,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 286 states have (on average 1.4125874125874125) internal successors, (404), 298 states have internal predecessors, (404), 21 states have call successors, (21), 8 states have call predecessors, (21), 10 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2022-07-13 02:15:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 448 transitions. [2022-07-13 02:15:43,931 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 448 transitions. Word has length 45 [2022-07-13 02:15:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:43,931 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 448 transitions. [2022-07-13 02:15:43,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 02:15:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 448 transitions. [2022-07-13 02:15:43,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-13 02:15:43,932 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:43,932 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:43,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:44,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-13 02:15:44,150 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:44,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:44,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1658343875, now seen corresponding path program 1 times [2022-07-13 02:15:44,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:44,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316340786] [2022-07-13 02:15:44,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:44,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:44,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-13 02:15:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:44,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:44,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316340786] [2022-07-13 02:15:44,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316340786] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:44,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387643694] [2022-07-13 02:15:44,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:44,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:44,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:44,193 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:44,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-13 02:15:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-13 02:15:44,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:44,246 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 02:15:44,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:44,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387643694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:44,247 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:44,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-07-13 02:15:44,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041556760] [2022-07-13 02:15:44,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:44,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 02:15:44,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:44,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 02:15:44,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:15:44,248 INFO L87 Difference]: Start difference. First operand 327 states and 448 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:44,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:44,282 INFO L93 Difference]: Finished difference Result 586 states and 804 transitions. [2022-07-13 02:15:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 02:15:44,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2022-07-13 02:15:44,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:44,283 INFO L225 Difference]: With dead ends: 586 [2022-07-13 02:15:44,283 INFO L226 Difference]: Without dead ends: 351 [2022-07-13 02:15:44,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:15:44,284 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 10 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:44,285 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 246 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:44,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-13 02:15:44,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 337. [2022-07-13 02:15:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 296 states have (on average 1.3986486486486487) internal successors, (414), 308 states have internal predecessors, (414), 21 states have call successors, (21), 8 states have call predecessors, (21), 10 states have return successors, (23), 20 states have call predecessors, (23), 20 states have call successors, (23) [2022-07-13 02:15:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 458 transitions. [2022-07-13 02:15:44,300 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 458 transitions. Word has length 47 [2022-07-13 02:15:44,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:44,300 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 458 transitions. [2022-07-13 02:15:44,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 458 transitions. [2022-07-13 02:15:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-13 02:15:44,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:44,301 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:44,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:44,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-13 02:15:44,520 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:44,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:44,521 INFO L85 PathProgramCache]: Analyzing trace with hash -836152950, now seen corresponding path program 1 times [2022-07-13 02:15:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:44,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466195277] [2022-07-13 02:15:44,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:44,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:44,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:44,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:15:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,590 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:44,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:44,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466195277] [2022-07-13 02:15:44,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466195277] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:44,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925110117] [2022-07-13 02:15:44,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:44,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:44,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:44,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:44,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-13 02:15:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:44,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-13 02:15:44,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:44,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:44,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925110117] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:44,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:44,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 11 [2022-07-13 02:15:44,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054617099] [2022-07-13 02:15:44,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:44,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 02:15:44,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:44,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 02:15:44,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-13 02:15:44,728 INFO L87 Difference]: Start difference. First operand 337 states and 458 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:45,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:45,757 INFO L93 Difference]: Finished difference Result 1032 states and 1414 transitions. [2022-07-13 02:15:45,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-13 02:15:45,760 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-13 02:15:45,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:45,763 INFO L225 Difference]: With dead ends: 1032 [2022-07-13 02:15:45,763 INFO L226 Difference]: Without dead ends: 919 [2022-07-13 02:15:45,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-07-13 02:15:45,764 INFO L413 NwaCegarLoop]: 323 mSDtfsCounter, 395 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 2240 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 399 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 2286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:45,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [399 Valid, 805 Invalid, 2286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2240 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 02:15:45,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-07-13 02:15:45,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 475. [2022-07-13 02:15:45,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 422 states have (on average 1.4099526066350712) internal successors, (595), 435 states have internal predecessors, (595), 30 states have call successors, (30), 10 states have call predecessors, (30), 13 states have return successors, (34), 29 states have call predecessors, (34), 29 states have call successors, (34) [2022-07-13 02:15:45,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 659 transitions. [2022-07-13 02:15:45,792 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 659 transitions. Word has length 48 [2022-07-13 02:15:45,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:45,793 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 659 transitions. [2022-07-13 02:15:45,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:45,793 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 659 transitions. [2022-07-13 02:15:45,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-13 02:15:45,794 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:45,794 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:45,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:46,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:46,007 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:46,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:46,008 INFO L85 PathProgramCache]: Analyzing trace with hash -836151028, now seen corresponding path program 1 times [2022-07-13 02:15:46,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:46,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159814865] [2022-07-13 02:15:46,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:46,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:46,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:46,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:46,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:15:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:46,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:46,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159814865] [2022-07-13 02:15:46,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159814865] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:46,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414421653] [2022-07-13 02:15:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:46,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:46,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:46,064 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:46,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-13 02:15:46,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:46,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 02:15:46,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-13 02:15:46,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:46,360 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-13 02:15:46,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414421653] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:46,361 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:46,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 19 [2022-07-13 02:15:46,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592616204] [2022-07-13 02:15:46,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:46,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 02:15:46,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:46,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 02:15:46,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:15:46,362 INFO L87 Difference]: Start difference. First operand 475 states and 659 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-13 02:15:47,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:47,500 INFO L93 Difference]: Finished difference Result 1166 states and 1621 transitions. [2022-07-13 02:15:47,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-13 02:15:47,500 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 48 [2022-07-13 02:15:47,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:47,503 INFO L225 Difference]: With dead ends: 1166 [2022-07-13 02:15:47,504 INFO L226 Difference]: Without dead ends: 959 [2022-07-13 02:15:47,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2022-07-13 02:15:47,507 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 657 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 1695 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 677 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:47,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [677 Valid, 412 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1695 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-13 02:15:47,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-07-13 02:15:47,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 605. [2022-07-13 02:15:47,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 540 states have (on average 1.4166666666666667) internal successors, (765), 554 states have internal predecessors, (765), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-13 02:15:47,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 849 transitions. [2022-07-13 02:15:47,539 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 849 transitions. Word has length 48 [2022-07-13 02:15:47,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:47,540 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 849 transitions. [2022-07-13 02:15:47,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-13 02:15:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 849 transitions. [2022-07-13 02:15:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-13 02:15:47,541 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:47,541 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:47,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:47,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-07-13 02:15:47,747 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:47,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:47,748 INFO L85 PathProgramCache]: Analyzing trace with hash 2123358745, now seen corresponding path program 1 times [2022-07-13 02:15:47,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:47,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764546449] [2022-07-13 02:15:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:47,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:47,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:47,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:15:47,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-13 02:15:47,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:47,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764546449] [2022-07-13 02:15:47,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764546449] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:47,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061592314] [2022-07-13 02:15:47,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:47,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:47,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:47,808 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:47,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-13 02:15:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:47,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-13 02:15:47,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:47,878 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 02:15:47,878 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:47,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061592314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:47,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:47,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-13 02:15:47,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417920535] [2022-07-13 02:15:47,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:47,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:15:47,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:47,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:15:47,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:47,880 INFO L87 Difference]: Start difference. First operand 605 states and 849 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:47,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:47,962 INFO L93 Difference]: Finished difference Result 1197 states and 1698 transitions. [2022-07-13 02:15:47,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:15:47,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-13 02:15:47,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:47,965 INFO L225 Difference]: With dead ends: 1197 [2022-07-13 02:15:47,965 INFO L226 Difference]: Without dead ends: 681 [2022-07-13 02:15:47,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:47,967 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 50 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:47,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 259 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:47,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-13 02:15:47,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 631. [2022-07-13 02:15:47,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 566 states have (on average 1.4081272084805654) internal successors, (797), 580 states have internal predecessors, (797), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-13 02:15:47,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 881 transitions. [2022-07-13 02:15:47,995 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 881 transitions. Word has length 48 [2022-07-13 02:15:47,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:47,995 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 881 transitions. [2022-07-13 02:15:47,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:47,995 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 881 transitions. [2022-07-13 02:15:47,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-13 02:15:47,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:47,996 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:48,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:48,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:48,211 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:48,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:48,212 INFO L85 PathProgramCache]: Analyzing trace with hash -343040408, now seen corresponding path program 1 times [2022-07-13 02:15:48,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:48,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349751872] [2022-07-13 02:15:48,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:48,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 02:15:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,253 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:48,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:48,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349751872] [2022-07-13 02:15:48,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349751872] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:48,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [278645870] [2022-07-13 02:15:48,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:48,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:48,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:48,269 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:48,270 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-13 02:15:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-13 02:15:48,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:48,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-13 02:15:48,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-13 02:15:48,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [278645870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:48,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-13 02:15:48,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-07-13 02:15:48,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876584264] [2022-07-13 02:15:48,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:48,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:15:48,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:48,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:15:48,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-13 02:15:48,326 INFO L87 Difference]: Start difference. First operand 631 states and 881 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:48,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:48,382 INFO L93 Difference]: Finished difference Result 1025 states and 1440 transitions. [2022-07-13 02:15:48,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-13 02:15:48,383 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2022-07-13 02:15:48,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:48,385 INFO L225 Difference]: With dead ends: 1025 [2022-07-13 02:15:48,385 INFO L226 Difference]: Without dead ends: 653 [2022-07-13 02:15:48,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-13 02:15:48,387 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 15 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:48,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 378 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 02:15:48,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-13 02:15:48,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 633. [2022-07-13 02:15:48,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 568 states have (on average 1.4102112676056338) internal successors, (801), 582 states have internal predecessors, (801), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-13 02:15:48,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 885 transitions. [2022-07-13 02:15:48,417 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 885 transitions. Word has length 49 [2022-07-13 02:15:48,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:48,417 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 885 transitions. [2022-07-13 02:15:48,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-13 02:15:48,417 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 885 transitions. [2022-07-13 02:15:48,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-13 02:15:48,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:48,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:48,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:48,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:48,636 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:48,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:48,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1723318001, now seen corresponding path program 1 times [2022-07-13 02:15:48,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:48,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117799879] [2022-07-13 02:15:48,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:48,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:48,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:48,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 02:15:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:48,830 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:48,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:48,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117799879] [2022-07-13 02:15:48,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117799879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:15:48,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:15:48,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 02:15:48,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961464708] [2022-07-13 02:15:48,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:15:48,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:15:48,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:48,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:15:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:15:48,831 INFO L87 Difference]: Start difference. First operand 633 states and 885 transitions. Second operand has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:15:49,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:49,900 INFO L93 Difference]: Finished difference Result 1068 states and 1499 transitions. [2022-07-13 02:15:49,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 02:15:49,901 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-13 02:15:49,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:49,904 INFO L225 Difference]: With dead ends: 1068 [2022-07-13 02:15:49,904 INFO L226 Difference]: Without dead ends: 1067 [2022-07-13 02:15:49,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:15:49,905 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 650 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1165 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 1219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:49,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 580 Invalid, 1219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1165 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-13 02:15:49,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-07-13 02:15:49,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 629. [2022-07-13 02:15:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 564 states have (on average 1.4095744680851063) internal successors, (795), 578 states have internal predecessors, (795), 39 states have call successors, (39), 12 states have call predecessors, (39), 16 states have return successors, (45), 38 states have call predecessors, (45), 38 states have call successors, (45) [2022-07-13 02:15:49,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 879 transitions. [2022-07-13 02:15:49,937 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 879 transitions. Word has length 50 [2022-07-13 02:15:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:49,937 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 879 transitions. [2022-07-13 02:15:49,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:15:49,937 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 879 transitions. [2022-07-13 02:15:49,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-13 02:15:49,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:49,938 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:49,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-13 02:15:49,939 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:49,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:49,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1460160345, now seen corresponding path program 1 times [2022-07-13 02:15:49,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:49,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130989273] [2022-07-13 02:15:49,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:49,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:50,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:50,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-13 02:15:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:50,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 02:15:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:50,077 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:50,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:50,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130989273] [2022-07-13 02:15:50,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130989273] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:50,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340863926] [2022-07-13 02:15:50,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:50,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:50,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:50,080 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:50,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-13 02:15:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:50,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-13 02:15:50,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:50,218 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 02:15:50,218 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:50,281 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 02:15:50,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340863926] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:50,282 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:50,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2022-07-13 02:15:50,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926033177] [2022-07-13 02:15:50,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:50,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 02:15:50,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:50,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 02:15:50,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:15:50,283 INFO L87 Difference]: Start difference. First operand 629 states and 879 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 02:15:55,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:55,099 INFO L93 Difference]: Finished difference Result 3384 states and 4915 transitions. [2022-07-13 02:15:55,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-13 02:15:55,103 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2022-07-13 02:15:55,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:55,111 INFO L225 Difference]: With dead ends: 3384 [2022-07-13 02:15:55,111 INFO L226 Difference]: Without dead ends: 2998 [2022-07-13 02:15:55,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=512, Invalid=2794, Unknown=0, NotChecked=0, Total=3306 [2022-07-13 02:15:55,115 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 2472 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 8028 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2472 SdHoareTripleChecker+Valid, 675 SdHoareTripleChecker+Invalid, 8455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 8028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:55,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2472 Valid, 675 Invalid, 8455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 8028 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-07-13 02:15:55,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2022-07-13 02:15:55,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 685. [2022-07-13 02:15:55,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 616 states have (on average 1.400974025974026) internal successors, (863), 629 states have internal predecessors, (863), 43 states have call successors, (43), 13 states have call predecessors, (43), 16 states have return successors, (48), 42 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-13 02:15:55,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 954 transitions. [2022-07-13 02:15:55,173 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 954 transitions. Word has length 56 [2022-07-13 02:15:55,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:55,173 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 954 transitions. [2022-07-13 02:15:55,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-13 02:15:55,173 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 954 transitions. [2022-07-13 02:15:55,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-13 02:15:55,174 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:55,174 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:55,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:55,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-13 02:15:55,392 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:55,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:55,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1529476761, now seen corresponding path program 1 times [2022-07-13 02:15:55,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:55,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225666516] [2022-07-13 02:15:55,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:55,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:55,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:55,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:55,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:15:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:55,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 02:15:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:55,492 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:55,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:55,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225666516] [2022-07-13 02:15:55,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225666516] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:55,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072895359] [2022-07-13 02:15:55,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:55,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:55,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:55,494 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:55,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-13 02:15:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:55,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-13 02:15:55,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:55,571 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:55,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:55,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072895359] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:55,632 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:55,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 13 [2022-07-13 02:15:55,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270027322] [2022-07-13 02:15:55,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:55,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-13 02:15:55,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:55,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-13 02:15:55,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-13 02:15:55,634 INFO L87 Difference]: Start difference. First operand 685 states and 954 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 02:15:58,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:15:58,118 INFO L93 Difference]: Finished difference Result 2890 states and 4178 transitions. [2022-07-13 02:15:58,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-13 02:15:58,118 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-13 02:15:58,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:15:58,126 INFO L225 Difference]: With dead ends: 2890 [2022-07-13 02:15:58,126 INFO L226 Difference]: Without dead ends: 2755 [2022-07-13 02:15:58,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2022-07-13 02:15:58,128 INFO L413 NwaCegarLoop]: 514 mSDtfsCounter, 744 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4867 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 5042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 4867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 02:15:58,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 632 Invalid, 5042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 4867 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 02:15:58,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-07-13 02:15:58,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 708. [2022-07-13 02:15:58,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 638 states have (on average 1.396551724137931) internal successors, (891), 650 states have internal predecessors, (891), 44 states have call successors, (44), 14 states have call predecessors, (44), 16 states have return successors, (48), 43 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-13 02:15:58,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 983 transitions. [2022-07-13 02:15:58,170 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 983 transitions. Word has length 56 [2022-07-13 02:15:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:15:58,170 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 983 transitions. [2022-07-13 02:15:58,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-13 02:15:58,171 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 983 transitions. [2022-07-13 02:15:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-13 02:15:58,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:15:58,172 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:15:58,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-13 02:15:58,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:58,391 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:15:58,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:15:58,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1529474839, now seen corresponding path program 1 times [2022-07-13 02:15:58,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:15:58,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838815239] [2022-07-13 02:15:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:58,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:15:58,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:58,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:15:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:58,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:15:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:58,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:15:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:58,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 02:15:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:15:58,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:15:58,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838815239] [2022-07-13 02:15:58,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838815239] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:15:58,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155255542] [2022-07-13 02:15:58,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:15:58,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:15:58,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:15:58,469 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:15:58,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-13 02:15:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:15:58,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 02:15:58,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:15:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-13 02:15:58,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:15:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-13 02:15:58,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155255542] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:15:58,780 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:15:58,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 21 [2022-07-13 02:15:58,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047927590] [2022-07-13 02:15:58,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:15:58,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-13 02:15:58,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:15:58,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-13 02:15:58,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-07-13 02:15:58,783 INFO L87 Difference]: Start difference. First operand 708 states and 983 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 02:16:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:01,430 INFO L93 Difference]: Finished difference Result 2445 states and 3441 transitions. [2022-07-13 02:16:01,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-13 02:16:01,430 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2022-07-13 02:16:01,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:01,436 INFO L225 Difference]: With dead ends: 2445 [2022-07-13 02:16:01,436 INFO L226 Difference]: Without dead ends: 2314 [2022-07-13 02:16:01,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=403, Invalid=2459, Unknown=0, NotChecked=0, Total=2862 [2022-07-13 02:16:01,438 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1310 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 4800 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 5038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 4800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:01,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 435 Invalid, 5038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 4800 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-13 02:16:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2022-07-13 02:16:01,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 724. [2022-07-13 02:16:01,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 653 states have (on average 1.3935681470137826) internal successors, (910), 664 states have internal predecessors, (910), 45 states have call successors, (45), 15 states have call predecessors, (45), 16 states have return successors, (48), 44 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-13 02:16:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1003 transitions. [2022-07-13 02:16:01,496 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1003 transitions. Word has length 56 [2022-07-13 02:16:01,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:01,496 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 1003 transitions. [2022-07-13 02:16:01,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-13 02:16:01,497 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1003 transitions. [2022-07-13 02:16:01,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-13 02:16:01,498 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:01,498 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:01,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-13 02:16:01,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:01,711 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:16:01,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:01,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1956143909, now seen corresponding path program 2 times [2022-07-13 02:16:01,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:01,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22981699] [2022-07-13 02:16:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:16:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:01,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:16:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:01,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:16:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:01,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-13 02:16:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-13 02:16:01,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:01,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22981699] [2022-07-13 02:16:01,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22981699] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:01,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105338601] [2022-07-13 02:16:01,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 02:16:01,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:01,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:01,864 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:01,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-13 02:16:01,927 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 02:16:01,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 02:16:01,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-13 02:16:01,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:02,018 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 02:16:02,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:02,115 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 02:16:02,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105338601] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:02,115 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:02,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2022-07-13 02:16:02,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499266746] [2022-07-13 02:16:02,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:02,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-13 02:16:02,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:02,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-13 02:16:02,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-13 02:16:02,116 INFO L87 Difference]: Start difference. First operand 724 states and 1003 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 02:16:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:06,239 INFO L93 Difference]: Finished difference Result 2693 states and 3787 transitions. [2022-07-13 02:16:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-13 02:16:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-07-13 02:16:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:06,245 INFO L225 Difference]: With dead ends: 2693 [2022-07-13 02:16:06,245 INFO L226 Difference]: Without dead ends: 2323 [2022-07-13 02:16:06,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=332, Invalid=1738, Unknown=0, NotChecked=0, Total=2070 [2022-07-13 02:16:06,247 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 1539 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 7593 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 660 SdHoareTripleChecker+Invalid, 7881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 7593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:06,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 660 Invalid, 7881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 7593 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-13 02:16:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-07-13 02:16:06,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 736. [2022-07-13 02:16:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 662 states have (on average 1.3791540785498488) internal successors, (913), 670 states have internal predecessors, (913), 48 states have call successors, (48), 18 states have call predecessors, (48), 16 states have return successors, (48), 47 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-13 02:16:06,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1009 transitions. [2022-07-13 02:16:06,300 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1009 transitions. Word has length 56 [2022-07-13 02:16:06,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:06,300 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 1009 transitions. [2022-07-13 02:16:06,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-13 02:16:06,301 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1009 transitions. [2022-07-13 02:16:06,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-13 02:16:06,301 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:06,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:06,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-07-13 02:16:06,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:06,511 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:16:06,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:06,512 INFO L85 PathProgramCache]: Analyzing trace with hash -571398184, now seen corresponding path program 1 times [2022-07-13 02:16:06,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:06,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814657313] [2022-07-13 02:16:06,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:06,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:16:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:16:06,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:16:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-13 02:16:06,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:06,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814657313] [2022-07-13 02:16:06,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814657313] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:06,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:06,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-13 02:16:06,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988430808] [2022-07-13 02:16:06,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:06,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 02:16:06,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:06,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 02:16:06,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-13 02:16:06,534 INFO L87 Difference]: Start difference. First operand 736 states and 1009 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:06,663 INFO L93 Difference]: Finished difference Result 1121 states and 1522 transitions. [2022-07-13 02:16:06,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 02:16:06,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-13 02:16:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:06,666 INFO L225 Difference]: With dead ends: 1121 [2022-07-13 02:16:06,666 INFO L226 Difference]: Without dead ends: 866 [2022-07-13 02:16:06,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-13 02:16:06,668 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 147 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:06,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 209 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 02:16:06,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-07-13 02:16:06,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 766. [2022-07-13 02:16:06,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 692 states have (on average 1.3872832369942196) internal successors, (960), 700 states have internal predecessors, (960), 48 states have call successors, (48), 18 states have call predecessors, (48), 16 states have return successors, (48), 47 states have call predecessors, (48), 41 states have call successors, (48) [2022-07-13 02:16:06,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1056 transitions. [2022-07-13 02:16:06,709 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1056 transitions. Word has length 55 [2022-07-13 02:16:06,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:06,709 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1056 transitions. [2022-07-13 02:16:06,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:06,710 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1056 transitions. [2022-07-13 02:16:06,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-13 02:16:06,710 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:06,711 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:06,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-13 02:16:06,711 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:16:06,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:06,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1837019720, now seen corresponding path program 1 times [2022-07-13 02:16:06,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:06,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082360059] [2022-07-13 02:16:06,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:06,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:06,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:16:06,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:16:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:16:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-13 02:16:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:06,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082360059] [2022-07-13 02:16:06,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082360059] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:06,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:06,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-13 02:16:06,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518768649] [2022-07-13 02:16:06,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:06,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 02:16:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:06,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 02:16:06,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-13 02:16:06,780 INFO L87 Difference]: Start difference. First operand 766 states and 1056 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:08,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:08,065 INFO L93 Difference]: Finished difference Result 2285 states and 3327 transitions. [2022-07-13 02:16:08,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 02:16:08,065 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-13 02:16:08,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:08,073 INFO L225 Difference]: With dead ends: 2285 [2022-07-13 02:16:08,073 INFO L226 Difference]: Without dead ends: 2053 [2022-07-13 02:16:08,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2022-07-13 02:16:08,075 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 434 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 2871 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:08,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 888 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2871 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-13 02:16:08,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2022-07-13 02:16:08,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 951. [2022-07-13 02:16:08,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 861 states have (on average 1.40534262485482) internal successors, (1210), 870 states have internal predecessors, (1210), 60 states have call successors, (60), 21 states have call predecessors, (60), 20 states have return successors, (64), 59 states have call predecessors, (64), 53 states have call successors, (64) [2022-07-13 02:16:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1334 transitions. [2022-07-13 02:16:08,148 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1334 transitions. Word has length 55 [2022-07-13 02:16:08,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:08,148 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1334 transitions. [2022-07-13 02:16:08,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:08,149 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1334 transitions. [2022-07-13 02:16:08,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-13 02:16:08,150 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:08,150 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:08,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-13 02:16:08,150 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:16:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:08,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1837021642, now seen corresponding path program 1 times [2022-07-13 02:16:08,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:08,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156193015] [2022-07-13 02:16:08,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:08,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:08,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:16:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:16:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:08,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:16:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-13 02:16:08,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:08,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156193015] [2022-07-13 02:16:08,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156193015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:08,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:08,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-13 02:16:08,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082759911] [2022-07-13 02:16:08,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:08,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-13 02:16:08,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:08,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-13 02:16:08,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-13 02:16:08,212 INFO L87 Difference]: Start difference. First operand 951 states and 1334 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:08,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:08,964 INFO L93 Difference]: Finished difference Result 2622 states and 3839 transitions. [2022-07-13 02:16:08,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-13 02:16:08,964 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-13 02:16:08,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:08,970 INFO L225 Difference]: With dead ends: 2622 [2022-07-13 02:16:08,970 INFO L226 Difference]: Without dead ends: 2158 [2022-07-13 02:16:08,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-07-13 02:16:08,972 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 886 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:08,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 545 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 02:16:08,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-07-13 02:16:09,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1146. [2022-07-13 02:16:09,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1040 states have (on average 1.4134615384615385) internal successors, (1470), 1050 states have internal predecessors, (1470), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (79), 71 states have call predecessors, (79), 65 states have call successors, (79) [2022-07-13 02:16:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1621 transitions. [2022-07-13 02:16:09,041 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1621 transitions. Word has length 55 [2022-07-13 02:16:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:09,041 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1621 transitions. [2022-07-13 02:16:09,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1621 transitions. [2022-07-13 02:16:09,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-13 02:16:09,042 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:09,042 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:09,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-13 02:16:09,043 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:16:09,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:09,043 INFO L85 PathProgramCache]: Analyzing trace with hash -474152029, now seen corresponding path program 1 times [2022-07-13 02:16:09,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:09,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098963793] [2022-07-13 02:16:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:09,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:09,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:16:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:09,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:16:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:09,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-13 02:16:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-13 02:16:09,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:09,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098963793] [2022-07-13 02:16:09,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098963793] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:16:09,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212357834] [2022-07-13 02:16:09,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:09,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:16:09,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:16:09,134 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:16:09,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-13 02:16:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:09,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-13 02:16:09,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:16:09,280 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-13 02:16:09,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:16:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-13 02:16:09,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212357834] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:16:09,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:16:09,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 22 [2022-07-13 02:16:09,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355569593] [2022-07-13 02:16:09,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:16:09,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-13 02:16:09,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:09,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-13 02:16:09,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-13 02:16:09,428 INFO L87 Difference]: Start difference. First operand 1146 states and 1621 transitions. Second operand has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-13 02:16:10,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:10,413 INFO L93 Difference]: Finished difference Result 1353 states and 1874 transitions. [2022-07-13 02:16:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-13 02:16:10,413 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2022-07-13 02:16:10,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:10,416 INFO L225 Difference]: With dead ends: 1353 [2022-07-13 02:16:10,416 INFO L226 Difference]: Without dead ends: 1096 [2022-07-13 02:16:10,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=160, Invalid=1100, Unknown=0, NotChecked=0, Total=1260 [2022-07-13 02:16:10,417 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 214 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:10,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 752 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-13 02:16:10,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-13 02:16:10,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 959. [2022-07-13 02:16:10,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 871 states have (on average 1.401836969001148) internal successors, (1221), 881 states have internal predecessors, (1221), 58 states have call successors, (58), 20 states have call predecessors, (58), 20 states have return successors, (63), 57 states have call predecessors, (63), 52 states have call successors, (63) [2022-07-13 02:16:10,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1342 transitions. [2022-07-13 02:16:10,472 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1342 transitions. Word has length 57 [2022-07-13 02:16:10,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:10,472 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1342 transitions. [2022-07-13 02:16:10,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-13 02:16:10,473 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1342 transitions. [2022-07-13 02:16:10,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-13 02:16:10,473 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:10,474 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:10,490 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-13 02:16:10,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-13 02:16:10,687 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:16:10,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:10,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2059170591, now seen corresponding path program 1 times [2022-07-13 02:16:10,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:10,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462428744] [2022-07-13 02:16:10,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:10,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:10,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-13 02:16:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:10,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-13 02:16:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:10,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-13 02:16:10,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:16:10,780 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-13 02:16:10,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:16:10,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462428744] [2022-07-13 02:16:10,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462428744] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 02:16:10,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 02:16:10,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-13 02:16:10,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86959793] [2022-07-13 02:16:10,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 02:16:10,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-13 02:16:10,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:16:10,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-13 02:16:10,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-13 02:16:10,782 INFO L87 Difference]: Start difference. First operand 959 states and 1342 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:11,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:16:11,296 INFO L93 Difference]: Finished difference Result 1256 states and 1731 transitions. [2022-07-13 02:16:11,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-13 02:16:11,297 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-07-13 02:16:11,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:16:11,299 INFO L225 Difference]: With dead ends: 1256 [2022-07-13 02:16:11,299 INFO L226 Difference]: Without dead ends: 914 [2022-07-13 02:16:11,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-07-13 02:16:11,301 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 158 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 873 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-13 02:16:11,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 561 Invalid, 886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 873 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-13 02:16:11,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-07-13 02:16:11,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 835. [2022-07-13 02:16:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 758 states have (on average 1.391820580474934) internal successors, (1055), 767 states have internal predecessors, (1055), 50 states have call successors, (50), 18 states have call predecessors, (50), 17 states have return successors, (52), 49 states have call predecessors, (52), 44 states have call successors, (52) [2022-07-13 02:16:11,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1157 transitions. [2022-07-13 02:16:11,353 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1157 transitions. Word has length 57 [2022-07-13 02:16:11,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:16:11,353 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1157 transitions. [2022-07-13 02:16:11,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 02:16:11,354 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1157 transitions. [2022-07-13 02:16:11,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-13 02:16:11,360 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:16:11,360 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:11,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-13 02:16:11,360 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-13 02:16:11,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:16:11,361 INFO L85 PathProgramCache]: Analyzing trace with hash 891468222, now seen corresponding path program 1 times [2022-07-13 02:16:11,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:16:11,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962282941] [2022-07-13 02:16:11,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:16:11,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:16:11,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:16:11,379 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 02:16:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 02:16:11,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 02:16:11,428 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-13 02:16:11,428 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-07-13 02:16:11,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-07-13 02:16:11,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-07-13 02:16:11,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-07-13 02:16:11,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-07-13 02:16:11,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-07-13 02:16:11,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-07-13 02:16:11,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-07-13 02:16:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-07-13 02:16:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-07-13 02:16:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-07-13 02:16:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-07-13 02:16:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-07-13 02:16:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-07-13 02:16:11,432 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-07-13 02:16:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-07-13 02:16:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-07-13 02:16:11,433 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-07-13 02:16:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-07-13 02:16:11,434 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-07-13 02:16:11,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-13 02:16:11,437 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 02:16:11,440 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 02:16:11,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 02:16:11 BoogieIcfgContainer [2022-07-13 02:16:11,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 02:16:11,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 02:16:11,501 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 02:16:11,501 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 02:16:11,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 02:15:32" (3/4) ... [2022-07-13 02:16:11,503 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-13 02:16:11,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 02:16:11,503 INFO L158 Benchmark]: Toolchain (without parser) took 39805.89ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 78.4MB in the beginning and 165.7MB in the end (delta: -87.3MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-07-13 02:16:11,503 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:16:11,505 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.72ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 80.6MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 02:16:11,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.20ms. Allocated memory is still 109.1MB. Free memory was 80.6MB in the beginning and 78.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 02:16:11,506 INFO L158 Benchmark]: Boogie Preprocessor took 20.04ms. Allocated memory is still 109.1MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:16:11,507 INFO L158 Benchmark]: RCFGBuilder took 466.95ms. Allocated memory is still 109.1MB. Free memory was 77.5MB in the beginning and 58.3MB in the end (delta: 19.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-13 02:16:11,507 INFO L158 Benchmark]: TraceAbstraction took 38952.49ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 57.9MB in the beginning and 166.8MB in the end (delta: -108.9MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. [2022-07-13 02:16:11,508 INFO L158 Benchmark]: Witness Printer took 2.68ms. Allocated memory is still 201.3MB. Free memory was 166.8MB in the beginning and 165.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 02:16:11,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 109.1MB. Free memory is still 63.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.72ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 80.6MB in the end (delta: -2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.20ms. Allocated memory is still 109.1MB. Free memory was 80.6MB in the beginning and 78.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.04ms. Allocated memory is still 109.1MB. Free memory was 78.9MB in the beginning and 77.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 466.95ms. Allocated memory is still 109.1MB. Free memory was 77.5MB in the beginning and 58.3MB in the end (delta: 19.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 38952.49ms. Allocated memory was 109.1MB in the beginning and 201.3MB in the end (delta: 92.3MB). Free memory was 57.9MB in the beginning and 166.8MB in the end (delta: -108.9MB). Peak memory consumption was 96.7MB. Max. memory is 16.1GB. * Witness Printer took 2.68ms. Allocated memory is still 201.3MB. Free memory was 166.8MB in the beginning and 165.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add1 ; [L233] unsigned int r_add2 ; [L234] unsigned int zero ; [L235] int tmp ; [L236] int tmp___0 ; [L237] int __retres14 ; VAL [ea=-1, eb=-127] [L241] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L80] return (__retres4); VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, \result=0, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L241] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-1, eb=-127, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L241] zero = base2flt(0, 0) [L242] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L29] COND FALSE !(! m) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L57] COND TRUE 1 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L77] EXPR e + 128 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L77] EXPR e + 128 VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=36028799166447618] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483646, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L78] __retres4 = res VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, __retres4=2147483646, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483646, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L80] return (__retres4); VAL [\old(e)=-1, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799166447618, \result=2147483646, __retres4=2147483646, e=-1, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483646, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L242] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=2147483646, ea=-1, eb=-127, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, res = m | ((unsigned int )(e + 128) << 24U)=2130706432, zero=0] [L242] a = base2flt(ma, ea) [L243] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L29] COND FALSE !(! m) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L57] COND TRUE 1 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res = m | ((unsigned int )(e + 128) << 24U)=2130706432] [L77] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L78] __retres4 = res VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, __retres4=2147483647, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L80] return (__retres4); VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799166447616, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=2130706432, \result=36028799166447615, __retres4=2147483647, e=-127, m=0, m = m & ~ (1U << 24U)=36028799166447616, res=2147483647, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L243] RET, EXPR base2flt(mb, eb) VAL [a=2147483646, base2flt(mb, eb)=36028799166447615, ea=-1, eb=-127, m = m & ~ (1U << 24U)=36028799166447616, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=16777216, zero=0] [L243] b = base2flt(mb, eb) [L244] CALL addflt(a, b) VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622] [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483646, b=2147483647, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622] [L94] COND TRUE a < b [L95] tmp = a [L96] a = b [L97] b = tmp VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] [L101] COND FALSE !(! b) VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma = a & ((1U << 24U) - 1U)=36028799166447620, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] [L108] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] [L109] (int )(a >> 24U) - 128 VAL [\old(a)=2147483646, \old(b)=2147483647, \old(ma = a & ((1U << 24U) - 1U))=36028799166447620, \old(ma = ma & ((1U << 24U) - 1U))=36028799166447621, \old(ma = ma | (1U << 24U))=36028799166447619, \old(mb = b & ((1U << 24U) - 1U))=36028799166447617, \old(mb = mb | (1U << 24U))=36028799166447623, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799166447622, a=2147483647, b=2147483646, m = m & ~ (1U << 24U)=36028799166447616, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799166447621, ma = ma | (1U << 24U)=36028799166447619, mb = b & ((1U << 24U) - 1U)=36028799166447617, mb = mb | (1U << 24U)=36028799166447623, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799166447622, tmp=2147483646] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 112]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 115]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 133]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 141]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 124 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 38.9s, OverallIterations: 33, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 27.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14820 SdHoareTripleChecker+Valid, 20.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14707 mSDsluCounter, 17148 SdHoareTripleChecker+Invalid, 17.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10627 mSDsCounter, 2100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47419 IncrementalHoareTripleChecker+Invalid, 49519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2100 mSolverCounterUnsat, 6521 mSDtfsCounter, 47419 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2055 GetRequests, 1470 SyntacticMatches, 15 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2926 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred in iteration=30, InterpolantAutomatonStates: 450, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 32 MinimizatonAttempts, 13216 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2057 NumberOfCodeBlocks, 2057 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2469 ConstructedInterpolants, 0 QuantifiedInterpolants, 6645 SizeOfPredicates, 61 NumberOfNonLiveVariables, 3176 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 63 InterpolantComputations, 22 PerfectInterpolantSequences, 809/961 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-13 02:16:11,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample