./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark03_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark03_linear.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:57:04,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:57:04,846 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:57:04,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:57:04,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:57:04,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:57:04,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:57:04,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:57:04,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:57:04,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:57:04,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:57:04,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:57:04,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:57:04,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:57:04,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:57:04,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:57:04,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:57:04,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:57:04,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:57:04,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:57:04,893 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:57:04,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:57:04,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:57:04,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:57:04,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:57:04,897 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:57:04,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:57:04,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:57:04,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:57:04,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:57:04,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:57:04,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:57:04,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:57:04,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:57:04,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:57:04,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:57:04,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:57:04,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:57:04,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:57:04,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:57:04,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:57:04,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:57:04,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:57:04,920 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:57:04,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:57:04,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:57:04,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:57:04,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:57:04,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:57:04,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:57:04,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:57:04,922 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:57:04,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:57:04,923 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:57:04,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:57:04,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:57:04,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:57:04,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:57:04,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:57:04,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:57:04,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:57:04,924 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:57:04,924 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:57:04,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:57:04,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:57:04,925 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:57:04,925 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:57:04,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:57:04,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:57:04,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:57:04,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:57:04,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:57:04,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:57:04,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:57:04,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:57:04,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:57:04,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36118893e72f01ac34f08ae30ac9eb83d0074096398f7228653cb15beb7a3f4b [2022-07-14 13:57:05,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:57:05,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:57:05,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:57:05,110 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:57:05,112 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:57:05,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-07-14 13:57:05,164 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ade8ba5e2/b680b017da9249a59a979343f3e9b37f/FLAGebb3e6a29 [2022-07-14 13:57:05,530 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:57:05,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark03_linear.i [2022-07-14 13:57:05,535 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ade8ba5e2/b680b017da9249a59a979343f3e9b37f/FLAGebb3e6a29 [2022-07-14 13:57:05,543 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ade8ba5e2/b680b017da9249a59a979343f3e9b37f [2022-07-14 13:57:05,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:57:05,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:57:05,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:57:05,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:57:05,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:57:05,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481df03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05, skipping insertion in model container [2022-07-14 13:57:05,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:57:05,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:57:05,701 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/loop-zilu/benchmark03_linear.i[868,881] [2022-07-14 13:57:05,720 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:57:05,727 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:57:05,738 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/loop-zilu/benchmark03_linear.i[868,881] [2022-07-14 13:57:05,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:57:05,756 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:57:05,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05 WrapperNode [2022-07-14 13:57:05,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:57:05,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:57:05,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:57:05,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:57:05,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,782 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-07-14 13:57:05,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:57:05,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:57:05,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:57:05,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:57:05,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,794 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:57:05,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:57:05,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:57:05,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:57:05,797 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (1/1) ... [2022-07-14 13:57:05,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:57:05,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:05,835 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) [2022-07-14 13:57:05,841 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 [2022-07-14 13:57:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:57:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:57:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:57:05,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:57:05,899 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:57:05,900 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:57:05,999 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:57:06,003 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:57:06,004 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 13:57:06,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:57:06 BoogieIcfgContainer [2022-07-14 13:57:06,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:57:06,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:57:06,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:57:06,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:57:06,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:57:05" (1/3) ... [2022-07-14 13:57:06,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d6b0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:57:06, skipping insertion in model container [2022-07-14 13:57:06,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:57:05" (2/3) ... [2022-07-14 13:57:06,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50d6b0a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:57:06, skipping insertion in model container [2022-07-14 13:57:06,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:57:06" (3/3) ... [2022-07-14 13:57:06,011 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark03_linear.i [2022-07-14 13:57:06,020 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:57:06,020 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-07-14 13:57:06,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:57:06,061 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@58ff700, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@779000d9 [2022-07-14 13:57:06,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-07-14 13:57:06,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-14 13:57:06,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:06,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-14 13:57:06,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:06,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:06,078 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2022-07-14 13:57:06,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:06,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657725747] [2022-07-14 13:57:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:06,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:06,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:06,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:06,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657725747] [2022-07-14 13:57:06,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657725747] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:06,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:06,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:06,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649145657] [2022-07-14 13:57:06,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:06,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:06,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:06,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:06,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:57:06,316 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.75) internal successors, (35), 30 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:06,385 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2022-07-14 13:57:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:57:06,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-07-14 13:57:06,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:06,392 INFO L225 Difference]: With dead ends: 48 [2022-07-14 13:57:06,392 INFO L226 Difference]: Without dead ends: 28 [2022-07-14 13:57:06,394 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 [2022-07-14 13:57:06,397 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 10 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:06,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 81 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:06,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-14 13:57:06,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-07-14 13:57:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-07-14 13:57:06,442 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 5 [2022-07-14 13:57:06,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:06,443 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-07-14 13:57:06,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,443 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-07-14 13:57:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-07-14 13:57:06,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:06,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:06,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:57:06,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:06,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:06,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2022-07-14 13:57:06,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:06,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306175540] [2022-07-14 13:57:06,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:06,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:06,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:06,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:06,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306175540] [2022-07-14 13:57:06,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306175540] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:06,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:06,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:06,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366695032] [2022-07-14 13:57:06,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:06,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:57:06,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:06,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:57:06,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 13:57:06,521 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:06,546 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2022-07-14 13:57:06,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:57:06,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-07-14 13:57:06,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:06,547 INFO L225 Difference]: With dead ends: 32 [2022-07-14 13:57:06,547 INFO L226 Difference]: Without dead ends: 30 [2022-07-14 13:57:06,547 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 [2022-07-14 13:57:06,548 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:06,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:06,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-07-14 13:57:06,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-07-14 13:57:06,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-07-14 13:57:06,552 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 7 [2022-07-14 13:57:06,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:06,553 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-07-14 13:57:06,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,553 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-07-14 13:57:06,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-14 13:57:06,554 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:06,554 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:06,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:57:06,554 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:06,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:06,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1387005865, now seen corresponding path program 1 times [2022-07-14 13:57:06,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:06,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054956994] [2022-07-14 13:57:06,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:06,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:06,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:06,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054956994] [2022-07-14 13:57:06,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054956994] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:06,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:06,623 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 13:57:06,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625909721] [2022-07-14 13:57:06,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:06,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:57:06,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:06,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:57:06,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:57:06,625 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:06,680 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2022-07-14 13:57:06,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:57:06,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-14 13:57:06,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:06,682 INFO L225 Difference]: With dead ends: 33 [2022-07-14 13:57:06,683 INFO L226 Difference]: Without dead ends: 32 [2022-07-14 13:57:06,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:06,685 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 7 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:06,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 73 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:06,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-14 13:57:06,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2022-07-14 13:57:06,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 30 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2022-07-14 13:57:06,694 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 9 [2022-07-14 13:57:06,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:06,695 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2022-07-14 13:57:06,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,696 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2022-07-14 13:57:06,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 13:57:06,696 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:06,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:06,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:57:06,697 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:06,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:06,701 INFO L85 PathProgramCache]: Analyzing trace with hash 47508913, now seen corresponding path program 1 times [2022-07-14 13:57:06,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:06,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32168886] [2022-07-14 13:57:06,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:06,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:06,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:06,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32168886] [2022-07-14 13:57:06,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32168886] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:06,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:06,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 13:57:06,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440997384] [2022-07-14 13:57:06,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:06,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:57:06,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:06,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:57:06,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:57:06,769 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:06,823 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2022-07-14 13:57:06,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:57:06,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-07-14 13:57:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:06,824 INFO L225 Difference]: With dead ends: 33 [2022-07-14 13:57:06,825 INFO L226 Difference]: Without dead ends: 32 [2022-07-14 13:57:06,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:06,826 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 3 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:06,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 89 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:06,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-14 13:57:06,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-07-14 13:57:06,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 31 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2022-07-14 13:57:06,829 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 10 [2022-07-14 13:57:06,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:06,829 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2022-07-14 13:57:06,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,829 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2022-07-14 13:57:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-14 13:57:06,829 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:06,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:06,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:57:06,830 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:06,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash 1472776363, now seen corresponding path program 1 times [2022-07-14 13:57:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:06,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603245615] [2022-07-14 13:57:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:06,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:06,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:06,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603245615] [2022-07-14 13:57:06,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603245615] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:06,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:06,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 13:57:06,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680679737] [2022-07-14 13:57:06,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:06,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:57:06,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:57:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:57:06,903 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:06,929 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-07-14 13:57:06,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:57:06,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-07-14 13:57:06,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:06,930 INFO L225 Difference]: With dead ends: 35 [2022-07-14 13:57:06,930 INFO L226 Difference]: Without dead ends: 34 [2022-07-14 13:57:06,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:06,931 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 13 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:06,932 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 63 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:06,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-14 13:57:06,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2022-07-14 13:57:06,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 32 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2022-07-14 13:57:06,934 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 11 [2022-07-14 13:57:06,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:06,934 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2022-07-14 13:57:06,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:06,935 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2022-07-14 13:57:06,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-14 13:57:06,935 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:06,935 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:06,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 13:57:06,935 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:06,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1588572941, now seen corresponding path program 1 times [2022-07-14 13:57:06,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:06,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61503039] [2022-07-14 13:57:06,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:06,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:06,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:06,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:06,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61503039] [2022-07-14 13:57:06,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61503039] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:06,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:06,987 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 13:57:06,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638929570] [2022-07-14 13:57:06,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:06,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:57:06,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:06,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:57:06,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 13:57:06,989 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:07,025 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2022-07-14 13:57:07,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:57:07,025 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-07-14 13:57:07,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:07,025 INFO L225 Difference]: With dead ends: 35 [2022-07-14 13:57:07,025 INFO L226 Difference]: Without dead ends: 34 [2022-07-14 13:57:07,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:07,026 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 5 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:07,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 77 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:07,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-07-14 13:57:07,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-07-14 13:57:07,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 33 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-07-14 13:57:07,029 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2022-07-14 13:57:07,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:07,029 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-07-14 13:57:07,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,029 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-07-14 13:57:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-14 13:57:07,030 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:07,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:07,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 13:57:07,030 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:07,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:07,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1905204139, now seen corresponding path program 1 times [2022-07-14 13:57:07,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:07,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779100449] [2022-07-14 13:57:07,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:07,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:07,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:07,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779100449] [2022-07-14 13:57:07,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779100449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:07,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:07,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 13:57:07,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74720525] [2022-07-14 13:57:07,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:07,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 13:57:07,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:07,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 13:57:07,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:07,069 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:07,114 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2022-07-14 13:57:07,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 13:57:07,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-14 13:57:07,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:07,115 INFO L225 Difference]: With dead ends: 55 [2022-07-14 13:57:07,115 INFO L226 Difference]: Without dead ends: 54 [2022-07-14 13:57:07,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-07-14 13:57:07,115 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 35 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:07,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 72 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-14 13:57:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 36. [2022-07-14 13:57:07,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2022-07-14 13:57:07,130 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 14 [2022-07-14 13:57:07,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:07,130 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2022-07-14 13:57:07,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,130 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2022-07-14 13:57:07,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 13:57:07,132 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:07,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:07,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 13:57:07,132 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:07,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:07,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1068213904, now seen corresponding path program 1 times [2022-07-14 13:57:07,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:07,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874015790] [2022-07-14 13:57:07,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:07,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:07,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:07,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874015790] [2022-07-14 13:57:07,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874015790] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:07,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:07,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 13:57:07,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557464081] [2022-07-14 13:57:07,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:07,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 13:57:07,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:07,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 13:57:07,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:57:07,188 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:07,247 INFO L93 Difference]: Finished difference Result 55 states and 57 transitions. [2022-07-14 13:57:07,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 13:57:07,247 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-14 13:57:07,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:07,248 INFO L225 Difference]: With dead ends: 55 [2022-07-14 13:57:07,248 INFO L226 Difference]: Without dead ends: 54 [2022-07-14 13:57:07,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-14 13:57:07,249 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:07,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 102 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:07,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-14 13:57:07,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 37. [2022-07-14 13:57:07,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-07-14 13:57:07,252 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 15 [2022-07-14 13:57:07,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:07,252 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-07-14 13:57:07,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,252 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-07-14 13:57:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 13:57:07,252 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:07,252 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:07,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 13:57:07,253 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:07,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:07,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1068218998, now seen corresponding path program 1 times [2022-07-14 13:57:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:07,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255178179] [2022-07-14 13:57:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:07,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:07,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:07,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:07,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:07,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255178179] [2022-07-14 13:57:07,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255178179] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:07,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258261276] [2022-07-14 13:57:07,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:07,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:07,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:07,285 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) [2022-07-14 13:57:07,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 13:57:07,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:07,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:57:07,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:07,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:07,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:07,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258261276] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:07,477 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:07,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-07-14 13:57:07,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049646740] [2022-07-14 13:57:07,478 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:07,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:57:07,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:07,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:57:07,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:57:07,479 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:07,569 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2022-07-14 13:57:07,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 13:57:07,570 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-14 13:57:07,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:07,571 INFO L225 Difference]: With dead ends: 84 [2022-07-14 13:57:07,571 INFO L226 Difference]: Without dead ends: 83 [2022-07-14 13:57:07,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:57:07,574 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 89 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:07,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 109 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:07,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-07-14 13:57:07,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 63. [2022-07-14 13:57:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 53 states have (on average 1.6037735849056605) internal successors, (85), 62 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 85 transitions. [2022-07-14 13:57:07,588 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 85 transitions. Word has length 15 [2022-07-14 13:57:07,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:07,589 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 85 transitions. [2022-07-14 13:57:07,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,589 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2022-07-14 13:57:07,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-14 13:57:07,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:07,590 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:07,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:07,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:07,804 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:07,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:07,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1244949380, now seen corresponding path program 1 times [2022-07-14 13:57:07,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:07,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343584083] [2022-07-14 13:57:07,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:07,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:07,849 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:07,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:07,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343584083] [2022-07-14 13:57:07,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343584083] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:07,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164571394] [2022-07-14 13:57:07,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:07,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:07,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:07,856 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) [2022-07-14 13:57:07,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 13:57:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:07,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:57:07,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:07,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:07,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:57:07,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164571394] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:07,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:57:07,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-07-14 13:57:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878245886] [2022-07-14 13:57:07,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:07,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:57:07,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:07,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:57:07,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 13:57:07,928 INFO L87 Difference]: Start difference. First operand 63 states and 85 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:07,969 INFO L93 Difference]: Finished difference Result 63 states and 85 transitions. [2022-07-14 13:57:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:57:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-14 13:57:07,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:07,970 INFO L225 Difference]: With dead ends: 63 [2022-07-14 13:57:07,970 INFO L226 Difference]: Without dead ends: 62 [2022-07-14 13:57:07,970 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 13:57:07,970 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 36 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:07,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 51 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:07,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-14 13:57:07,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-07-14 13:57:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 61 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 82 transitions. [2022-07-14 13:57:07,974 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 82 transitions. Word has length 16 [2022-07-14 13:57:07,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:07,975 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 82 transitions. [2022-07-14 13:57:07,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:07,975 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2022-07-14 13:57:07,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 13:57:07,975 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:07,975 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:08,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:08,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-14 13:57:08,176 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:08,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash 61274936, now seen corresponding path program 1 times [2022-07-14 13:57:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:08,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293148032] [2022-07-14 13:57:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:08,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:08,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:08,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293148032] [2022-07-14 13:57:08,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293148032] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:08,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [304951948] [2022-07-14 13:57:08,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:08,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:08,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:08,222 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) [2022-07-14 13:57:08,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 13:57:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:57:08,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:08,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:08,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:08,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [304951948] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:08,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:08,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-07-14 13:57:08,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266461977] [2022-07-14 13:57:08,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:08,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 13:57:08,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:08,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 13:57:08,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-07-14 13:57:08,332 INFO L87 Difference]: Start difference. First operand 62 states and 82 transitions. Second operand has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:08,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:08,417 INFO L93 Difference]: Finished difference Result 81 states and 87 transitions. [2022-07-14 13:57:08,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 13:57:08,417 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-14 13:57:08,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:08,418 INFO L225 Difference]: With dead ends: 81 [2022-07-14 13:57:08,418 INFO L226 Difference]: Without dead ends: 80 [2022-07-14 13:57:08,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-07-14 13:57:08,419 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 76 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:08,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 141 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:08,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-07-14 13:57:08,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 64. [2022-07-14 13:57:08,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 55 states have (on average 1.490909090909091) internal successors, (82), 63 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2022-07-14 13:57:08,422 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 17 [2022-07-14 13:57:08,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:08,422 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2022-07-14 13:57:08,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:08,422 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2022-07-14 13:57:08,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-14 13:57:08,423 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:08,423 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:08,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-14 13:57:08,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:08,640 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:08,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:08,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1899523070, now seen corresponding path program 1 times [2022-07-14 13:57:08,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:08,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493491312] [2022-07-14 13:57:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:08,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:08,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:08,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493491312] [2022-07-14 13:57:08,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493491312] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:08,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368510872] [2022-07-14 13:57:08,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:08,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:08,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:08,671 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) [2022-07-14 13:57:08,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 13:57:08,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:08,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 13:57:08,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:08,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:08,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:57:08,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368510872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:08,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:57:08,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-07-14 13:57:08,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153186868] [2022-07-14 13:57:08,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:08,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:57:08,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:08,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:57:08,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-14 13:57:08,725 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:08,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:08,749 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2022-07-14 13:57:08,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 13:57:08,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-07-14 13:57:08,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:08,750 INFO L225 Difference]: With dead ends: 64 [2022-07-14 13:57:08,750 INFO L226 Difference]: Without dead ends: 63 [2022-07-14 13:57:08,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-07-14 13:57:08,751 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 32 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:08,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 56 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:08,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-14 13:57:08,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-14 13:57:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 55 states have (on average 1.4363636363636363) internal successors, (79), 62 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-07-14 13:57:08,754 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 18 [2022-07-14 13:57:08,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:08,755 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-07-14 13:57:08,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-07-14 13:57:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-14 13:57:08,755 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:08,755 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:08,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:08,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:08,972 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:08,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:08,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1244326918, now seen corresponding path program 1 times [2022-07-14 13:57:08,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:08,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654840015] [2022-07-14 13:57:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:09,018 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:09,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:09,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654840015] [2022-07-14 13:57:09,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654840015] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:09,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103496239] [2022-07-14 13:57:09,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:09,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:09,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:09,024 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) [2022-07-14 13:57:09,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 13:57:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:09,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 13:57:09,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:09,171 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:09,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:09,251 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:09,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103496239] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:09,251 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:09,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-07-14 13:57:09,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872090918] [2022-07-14 13:57:09,252 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:09,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-14 13:57:09,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:09,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-14 13:57:09,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-07-14 13:57:09,253 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:09,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:09,410 INFO L93 Difference]: Finished difference Result 76 states and 82 transitions. [2022-07-14 13:57:09,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-14 13:57:09,410 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-14 13:57:09,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:09,411 INFO L225 Difference]: With dead ends: 76 [2022-07-14 13:57:09,411 INFO L226 Difference]: Without dead ends: 75 [2022-07-14 13:57:09,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=261, Invalid=795, Unknown=0, NotChecked=0, Total=1056 [2022-07-14 13:57:09,412 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 160 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:09,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 176 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:09,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-07-14 13:57:09,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 65. [2022-07-14 13:57:09,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 64 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:09,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 79 transitions. [2022-07-14 13:57:09,415 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 79 transitions. Word has length 19 [2022-07-14 13:57:09,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:09,415 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 79 transitions. [2022-07-14 13:57:09,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.5) internal successors, (55), 23 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:09,415 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 79 transitions. [2022-07-14 13:57:09,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-14 13:57:09,416 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:09,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:09,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:09,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-14 13:57:09,633 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:09,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash 80571264, now seen corresponding path program 1 times [2022-07-14 13:57:09,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:09,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124707888] [2022-07-14 13:57:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:09,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:09,686 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:09,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:09,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124707888] [2022-07-14 13:57:09,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124707888] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:09,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1635624845] [2022-07-14 13:57:09,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:09,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:09,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:09,688 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) [2022-07-14 13:57:09,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 13:57:09,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:09,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 13:57:09,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:09,826 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:09,826 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:57:09,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1635624845] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:09,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:57:09,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-07-14 13:57:09,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195860074] [2022-07-14 13:57:09,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:09,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 13:57:09,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:09,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 13:57:09,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-07-14 13:57:09,828 INFO L87 Difference]: Start difference. First operand 65 states and 79 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:09,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:09,886 INFO L93 Difference]: Finished difference Result 65 states and 79 transitions. [2022-07-14 13:57:09,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 13:57:09,887 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-14 13:57:09,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:09,887 INFO L225 Difference]: With dead ends: 65 [2022-07-14 13:57:09,887 INFO L226 Difference]: Without dead ends: 64 [2022-07-14 13:57:09,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-07-14 13:57:09,888 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 46 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:09,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 84 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:09,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-14 13:57:09,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-07-14 13:57:09,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 63 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:09,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 76 transitions. [2022-07-14 13:57:09,897 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 76 transitions. Word has length 20 [2022-07-14 13:57:09,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:09,897 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 76 transitions. [2022-07-14 13:57:09,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 76 transitions. [2022-07-14 13:57:09,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-07-14 13:57:09,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:09,899 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:09,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:10,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:10,116 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:10,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:10,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1797258052, now seen corresponding path program 1 times [2022-07-14 13:57:10,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:10,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091951399] [2022-07-14 13:57:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:10,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:10,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:10,158 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:10,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:10,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091951399] [2022-07-14 13:57:10,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091951399] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:10,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818255840] [2022-07-14 13:57:10,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:10,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:10,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:10,160 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) [2022-07-14 13:57:10,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 13:57:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:10,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 13:57:10,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:10,265 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:10,265 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:10,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818255840] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:10,339 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:10,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2022-07-14 13:57:10,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805337392] [2022-07-14 13:57:10,340 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:10,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-14 13:57:10,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:10,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-14 13:57:10,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=390, Unknown=0, NotChecked=0, Total=506 [2022-07-14 13:57:10,341 INFO L87 Difference]: Start difference. First operand 64 states and 76 transitions. Second operand has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:10,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:10,602 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2022-07-14 13:57:10,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-14 13:57:10,602 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-07-14 13:57:10,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:10,603 INFO L225 Difference]: With dead ends: 121 [2022-07-14 13:57:10,603 INFO L226 Difference]: Without dead ends: 120 [2022-07-14 13:57:10,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2022-07-14 13:57:10,604 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 132 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:10,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 122 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-14 13:57:10,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 100. [2022-07-14 13:57:10,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 93 states have (on average 1.2365591397849462) internal successors, (115), 99 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:10,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2022-07-14 13:57:10,608 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 21 [2022-07-14 13:57:10,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:10,608 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2022-07-14 13:57:10,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.772727272727273) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:10,608 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2022-07-14 13:57:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-07-14 13:57:10,608 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:10,608 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:10,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:10,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:10,809 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:10,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:10,809 INFO L85 PathProgramCache]: Analyzing trace with hash 119575298, now seen corresponding path program 1 times [2022-07-14 13:57:10,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:10,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725518620] [2022-07-14 13:57:10,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:10,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:10,852 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:10,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:10,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725518620] [2022-07-14 13:57:10,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725518620] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:10,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645212082] [2022-07-14 13:57:10,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:10,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:10,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:10,854 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) [2022-07-14 13:57:10,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 13:57:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:10,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-14 13:57:10,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:10,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:57:10,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645212082] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:10,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:57:10,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 15 [2022-07-14 13:57:10,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621535492] [2022-07-14 13:57:10,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:10,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 13:57:10,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 13:57:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-07-14 13:57:10,989 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:11,063 INFO L93 Difference]: Finished difference Result 100 states and 115 transitions. [2022-07-14 13:57:11,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 13:57:11,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-07-14 13:57:11,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:11,064 INFO L225 Difference]: With dead ends: 100 [2022-07-14 13:57:11,064 INFO L226 Difference]: Without dead ends: 98 [2022-07-14 13:57:11,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-07-14 13:57:11,065 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 48 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:11,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 68 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-07-14 13:57:11,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-07-14 13:57:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 93 states have (on average 1.1505376344086022) internal successors, (107), 97 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2022-07-14 13:57:11,069 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 22 [2022-07-14 13:57:11,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:11,069 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2022-07-14 13:57:11,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 9 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2022-07-14 13:57:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-14 13:57:11,070 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:11,070 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:11,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:11,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-14 13:57:11,283 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:11,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1052253532, now seen corresponding path program 1 times [2022-07-14 13:57:11,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:11,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556973971] [2022-07-14 13:57:11,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:11,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:11,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:11,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:11,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556973971] [2022-07-14 13:57:11,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556973971] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:11,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:11,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:11,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363668220] [2022-07-14 13:57:11,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:11,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:57:11,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:11,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:57:11,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:11,305 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:11,312 INFO L93 Difference]: Finished difference Result 157 states and 173 transitions. [2022-07-14 13:57:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:57:11,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-07-14 13:57:11,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:11,316 INFO L225 Difference]: With dead ends: 157 [2022-07-14 13:57:11,317 INFO L226 Difference]: Without dead ends: 120 [2022-07-14 13:57:11,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:11,317 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 4 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:11,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:11,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-14 13:57:11,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2022-07-14 13:57:11,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 111 states have (on average 1.1441441441441442) internal successors, (127), 115 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 127 transitions. [2022-07-14 13:57:11,323 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 127 transitions. Word has length 24 [2022-07-14 13:57:11,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:11,323 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 127 transitions. [2022-07-14 13:57:11,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,323 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 127 transitions. [2022-07-14 13:57:11,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-14 13:57:11,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:11,326 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:11,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-14 13:57:11,326 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:11,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:11,326 INFO L85 PathProgramCache]: Analyzing trace with hash -2046612408, now seen corresponding path program 1 times [2022-07-14 13:57:11,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:11,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925041476] [2022-07-14 13:57:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:11,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:11,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:11,388 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:11,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:11,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925041476] [2022-07-14 13:57:11,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925041476] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:11,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028985485] [2022-07-14 13:57:11,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:11,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:11,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:11,390 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) [2022-07-14 13:57:11,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 13:57:11,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:11,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 13:57:11,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:11,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:11,610 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:11,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028985485] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:11,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:11,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 27 [2022-07-14 13:57:11,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857920418] [2022-07-14 13:57:11,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:11,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-07-14 13:57:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:11,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-07-14 13:57:11,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-07-14 13:57:11,612 INFO L87 Difference]: Start difference. First operand 116 states and 127 transitions. Second operand has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:11,849 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2022-07-14 13:57:11,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-14 13:57:11,849 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-07-14 13:57:11,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:11,850 INFO L225 Difference]: With dead ends: 141 [2022-07-14 13:57:11,850 INFO L226 Difference]: Without dead ends: 139 [2022-07-14 13:57:11,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=1205, Unknown=0, NotChecked=0, Total=1640 [2022-07-14 13:57:11,851 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 267 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:11,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 138 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:11,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-07-14 13:57:11,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 106. [2022-07-14 13:57:11,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 101 states have (on average 1.1287128712871286) internal successors, (114), 105 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 114 transitions. [2022-07-14 13:57:11,855 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 114 transitions. Word has length 26 [2022-07-14 13:57:11,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:11,855 INFO L495 AbstractCegarLoop]: Abstraction has 106 states and 114 transitions. [2022-07-14 13:57:11,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 2.740740740740741) internal successors, (74), 28 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:11,856 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 114 transitions. [2022-07-14 13:57:11,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 13:57:11,858 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:11,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-07-14 13:57:11,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:12,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-14 13:57:12,068 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:12,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,068 INFO L85 PathProgramCache]: Analyzing trace with hash 259934870, now seen corresponding path program 1 times [2022-07-14 13:57:12,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204790563] [2022-07-14 13:57:12,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-14 13:57:12,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204790563] [2022-07-14 13:57:12,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204790563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:12,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:12,088 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287242061] [2022-07-14 13:57:12,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:57:12,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:57:12,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:12,089 INFO L87 Difference]: Start difference. First operand 106 states and 114 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,094 INFO L93 Difference]: Finished difference Result 142 states and 146 transitions. [2022-07-14 13:57:12,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:57:12,094 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-14 13:57:12,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,095 INFO L225 Difference]: With dead ends: 142 [2022-07-14 13:57:12,095 INFO L226 Difference]: Without dead ends: 104 [2022-07-14 13:57:12,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:12,096 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 5 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 48 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:12,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-07-14 13:57:12,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2022-07-14 13:57:12,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 95 states have (on average 1.105263157894737) internal successors, (105), 99 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2022-07-14 13:57:12,105 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 45 [2022-07-14 13:57:12,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,105 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2022-07-14 13:57:12,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2022-07-14 13:57:12,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-14 13:57:12,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,107 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-14 13:57:12,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-07-14 13:57:12,107 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:12,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,107 INFO L85 PathProgramCache]: Analyzing trace with hash 375204201, now seen corresponding path program 2 times [2022-07-14 13:57:12,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489857545] [2022-07-14 13:57:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,169 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489857545] [2022-07-14 13:57:12,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489857545] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:12,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554644504] [2022-07-14 13:57:12,170 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:12,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:12,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:12,171 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) [2022-07-14 13:57:12,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 13:57:12,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:12,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:12,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 13:57:12,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:12,408 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554644504] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:12,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:12,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-07-14 13:57:12,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407247121] [2022-07-14 13:57:12,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:12,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 13:57:12,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:12,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 13:57:12,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-14 13:57:12,410 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:12,571 INFO L93 Difference]: Finished difference Result 247 states and 278 transitions. [2022-07-14 13:57:12,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-14 13:57:12,571 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-07-14 13:57:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:12,572 INFO L225 Difference]: With dead ends: 247 [2022-07-14 13:57:12,572 INFO L226 Difference]: Without dead ends: 246 [2022-07-14 13:57:12,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 13:57:12,573 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 218 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:12,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 162 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:12,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-07-14 13:57:12,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 222. [2022-07-14 13:57:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.2165898617511521) internal successors, (264), 221 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 264 transitions. [2022-07-14 13:57:12,579 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 264 transitions. Word has length 45 [2022-07-14 13:57:12,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:12,580 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 264 transitions. [2022-07-14 13:57:12,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.086956521739131) internal successors, (94), 24 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:12,580 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 264 transitions. [2022-07-14 13:57:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 13:57:12,580 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:12,581 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-07-14 13:57:12,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:12,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:12,814 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:12,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:12,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1697772786, now seen corresponding path program 1 times [2022-07-14 13:57:12,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:12,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957670944] [2022-07-14 13:57:12,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,937 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:12,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:12,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957670944] [2022-07-14 13:57:12,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957670944] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:12,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961791123] [2022-07-14 13:57:12,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:12,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:12,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:12,939 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) [2022-07-14 13:57:12,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-14 13:57:12,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:12,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 13:57:12,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:13,272 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:13,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:13,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961791123] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:13,584 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:13,585 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-07-14 13:57:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026122139] [2022-07-14 13:57:13,585 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:13,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-07-14 13:57:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:13,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-07-14 13:57:13,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2022-07-14 13:57:13,587 INFO L87 Difference]: Start difference. First operand 222 states and 264 transitions. Second operand has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:14,565 INFO L93 Difference]: Finished difference Result 237 states and 264 transitions. [2022-07-14 13:57:14,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-14 13:57:14,566 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-07-14 13:57:14,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:14,567 INFO L225 Difference]: With dead ends: 237 [2022-07-14 13:57:14,567 INFO L226 Difference]: Without dead ends: 236 [2022-07-14 13:57:14,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2288 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1486, Invalid=5320, Unknown=0, NotChecked=0, Total=6806 [2022-07-14 13:57:14,570 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 628 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:14,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 238 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:57:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-07-14 13:57:14,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 222. [2022-07-14 13:57:14,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 217 states have (on average 1.1797235023041475) internal successors, (256), 221 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 256 transitions. [2022-07-14 13:57:14,576 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 256 transitions. Word has length 47 [2022-07-14 13:57:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:14,577 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 256 transitions. [2022-07-14 13:57:14,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.836734693877551) internal successors, (139), 50 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:14,577 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 256 transitions. [2022-07-14 13:57:14,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 13:57:14,577 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:14,577 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-14 13:57:14,594 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:14,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-07-14 13:57:14,778 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:14,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:14,778 INFO L85 PathProgramCache]: Analyzing trace with hash -206014101, now seen corresponding path program 2 times [2022-07-14 13:57:14,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:14,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765353583] [2022-07-14 13:57:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:14,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:14,835 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:14,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:14,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765353583] [2022-07-14 13:57:14,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765353583] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:14,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805510442] [2022-07-14 13:57:14,835 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:14,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:14,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:14,836 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) [2022-07-14 13:57:14,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-14 13:57:14,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:14,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:14,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 13:57:14,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:14,924 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:14,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:15,053 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:15,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805510442] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:15,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:15,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2022-07-14 13:57:15,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538629178] [2022-07-14 13:57:15,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:15,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-14 13:57:15,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:15,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-14 13:57:15,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2022-07-14 13:57:15,055 INFO L87 Difference]: Start difference. First operand 222 states and 256 transitions. Second operand has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:15,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:15,203 INFO L93 Difference]: Finished difference Result 242 states and 264 transitions. [2022-07-14 13:57:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-14 13:57:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-07-14 13:57:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:15,204 INFO L225 Difference]: With dead ends: 242 [2022-07-14 13:57:15,204 INFO L226 Difference]: Without dead ends: 241 [2022-07-14 13:57:15,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=332, Invalid=790, Unknown=0, NotChecked=0, Total=1122 [2022-07-14 13:57:15,205 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 210 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:15,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 182 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:15,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-07-14 13:57:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 226. [2022-07-14 13:57:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.1312217194570136) internal successors, (250), 225 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 250 transitions. [2022-07-14 13:57:15,211 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 250 transitions. Word has length 47 [2022-07-14 13:57:15,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:15,211 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 250 transitions. [2022-07-14 13:57:15,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.3478260869565215) internal successors, (100), 24 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:15,211 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 250 transitions. [2022-07-14 13:57:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-14 13:57:15,212 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:15,212 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2022-07-14 13:57:15,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-14 13:57:15,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-07-14 13:57:15,427 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:15,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:15,428 INFO L85 PathProgramCache]: Analyzing trace with hash -411053715, now seen corresponding path program 2 times [2022-07-14 13:57:15,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:15,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687553721] [2022-07-14 13:57:15,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:15,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:15,539 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:15,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:15,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687553721] [2022-07-14 13:57:15,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687553721] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:15,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [708311405] [2022-07-14 13:57:15,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:15,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:15,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:15,541 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) [2022-07-14 13:57:15,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-14 13:57:15,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:15,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:15,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 13:57:15,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:15,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:27,681 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:27,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [708311405] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:27,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:27,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 49 [2022-07-14 13:57:27,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389272767] [2022-07-14 13:57:27,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:27,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-07-14 13:57:27,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:27,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-07-14 13:57:27,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=2023, Unknown=6, NotChecked=0, Total=2450 [2022-07-14 13:57:27,683 INFO L87 Difference]: Start difference. First operand 226 states and 250 transitions. Second operand has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:28,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:28,280 INFO L93 Difference]: Finished difference Result 233 states and 250 transitions. [2022-07-14 13:57:28,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-14 13:57:28,280 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-07-14 13:57:28,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:28,281 INFO L225 Difference]: With dead ends: 233 [2022-07-14 13:57:28,281 INFO L226 Difference]: Without dead ends: 232 [2022-07-14 13:57:28,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1551 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=887, Invalid=3529, Unknown=6, NotChecked=0, Total=4422 [2022-07-14 13:57:28,283 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 568 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:28,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 366 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 199 Invalid, 0 Unknown, 49 Unchecked, 0.1s Time] [2022-07-14 13:57:28,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2022-07-14 13:57:28,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 226. [2022-07-14 13:57:28,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.085972850678733) internal successors, (240), 225 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:28,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 240 transitions. [2022-07-14 13:57:28,291 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 240 transitions. Word has length 49 [2022-07-14 13:57:28,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:28,291 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 240 transitions. [2022-07-14 13:57:28,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 2.9591836734693877) internal successors, (145), 50 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:28,291 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 240 transitions. [2022-07-14 13:57:28,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-14 13:57:28,292 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:28,292 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 1, 1, 1, 1] [2022-07-14 13:57:28,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:28,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-07-14 13:57:28,503 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:28,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:28,504 INFO L85 PathProgramCache]: Analyzing trace with hash 814251694, now seen corresponding path program 2 times [2022-07-14 13:57:28,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:28,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131205135] [2022-07-14 13:57:28,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:28,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:28,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:28,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131205135] [2022-07-14 13:57:28,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131205135] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:28,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87936505] [2022-07-14 13:57:28,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:28,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:28,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:28,664 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) [2022-07-14 13:57:28,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-14 13:57:28,698 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:28,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:28,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-14 13:57:28,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:29,039 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:29,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:29,397 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:29,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87936505] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:29,397 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:29,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 51 [2022-07-14 13:57:29,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552132103] [2022-07-14 13:57:29,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:29,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-07-14 13:57:29,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:29,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-07-14 13:57:29,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=2150, Unknown=0, NotChecked=0, Total=2652 [2022-07-14 13:57:29,399 INFO L87 Difference]: Start difference. First operand 226 states and 240 transitions. Second operand has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:30,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:30,244 INFO L93 Difference]: Finished difference Result 228 states and 240 transitions. [2022-07-14 13:57:30,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-07-14 13:57:30,245 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-07-14 13:57:30,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:30,245 INFO L225 Difference]: With dead ends: 228 [2022-07-14 13:57:30,245 INFO L226 Difference]: Without dead ends: 227 [2022-07-14 13:57:30,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2161 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1431, Invalid=4731, Unknown=0, NotChecked=0, Total=6162 [2022-07-14 13:57:30,247 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 586 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:30,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [586 Valid, 286 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:57:30,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-07-14 13:57:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2022-07-14 13:57:30,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 1.0678733031674208) internal successors, (236), 225 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:30,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 236 transitions. [2022-07-14 13:57:30,253 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 236 transitions. Word has length 50 [2022-07-14 13:57:30,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:30,253 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 236 transitions. [2022-07-14 13:57:30,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 2.8627450980392157) internal successors, (146), 52 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:30,254 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 236 transitions. [2022-07-14 13:57:30,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-07-14 13:57:30,254 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:30,254 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 1, 1, 1, 1] [2022-07-14 13:57:30,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:30,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:30,471 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2022-07-14 13:57:30,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:30,471 INFO L85 PathProgramCache]: Analyzing trace with hash -906852813, now seen corresponding path program 2 times [2022-07-14 13:57:30,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:30,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640243797] [2022-07-14 13:57:30,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:30,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:30,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:30,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640243797] [2022-07-14 13:57:30,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640243797] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:30,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371660284] [2022-07-14 13:57:30,775 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:30,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:30,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:30,776 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) [2022-07-14 13:57:30,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-14 13:57:30,819 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:30,819 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:30,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 29 conjunts are in the unsatisfiable core [2022-07-14 13:57:30,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:57:31,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:58:06,754 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:58:06,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371660284] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:58:06,754 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:58:06,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 85 [2022-07-14 13:58:06,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135758580] [2022-07-14 13:58:06,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:58:06,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-07-14 13:58:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:58:06,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-07-14 13:58:06,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1094, Invalid=6197, Unknown=19, NotChecked=0, Total=7310 [2022-07-14 13:58:06,765 INFO L87 Difference]: Start difference. First operand 226 states and 236 transitions. Second operand has 86 states, 85 states have (on average 3.1882352941176473) internal successors, (271), 86 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 14:00:21,871 WARN L233 SmtUtils]: Spent 28.45s on a formula simplification. DAG size of input: 84 DAG size of output: 43 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-14 14:00:24,513 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse7 (* (- 1) |c_ULTIMATE.start_main_~y~0#1|)) (.cse10 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|))) (let ((.cse1 (div (+ .cse10 2147483646) 2)) (.cse4 (div (+ .cse7 2147483639 .cse10) 2)) (.cse6 (div (+ .cse10 2147483634) 2)) (.cse5 (+ |c_ULTIMATE.start_main_#t~post8#1| 1)) (.cse0 (+ |c_ULTIMATE.start_main_~y~0#1| 1)) (.cse9 (div (+ (div (+ .cse10 2147483637) 2) 2) 2)) (.cse8 (* (- 1) |c_ULTIMATE.start_main_#t~post8#1|))) (and (<= .cse0 .cse1) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int)) (let ((.cse2 (* 2 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|))) (or (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 4) .cse2) 2147483634) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (<= 2147483637 (+ |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 5) .cse2)) (<= (+ |c_ULTIMATE.start_main_~y~0#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|)))) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int)) (or (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (* 3 |v_ULTIMATE.start_main_~y~0#1_55|) (* 4 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)) 2147483615) (< (+ |c_ULTIMATE.start_main_~y~0#1| 2) |v_ULTIMATE.start_main_~y~0#1_55|) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ 2 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)))) (forall ((|v_ULTIMATE.start_main_~y~0#1_55| Int)) (or (< (+ |c_ULTIMATE.start_main_~y~0#1| 1) |v_ULTIMATE.start_main_~y~0#1_55|) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ (div (+ (- 1) (div (+ (* |v_ULTIMATE.start_main_~y~0#1_55| (- 3)) 2147483620 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|)) 2)) 2) 2)))) (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int)) (let ((.cse3 (* 2 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|))) (or (<= (+ |c_ULTIMATE.start_main_#t~post8#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 4) .cse3) 2147483634) (<= 2147483637 (+ |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 5) .cse3))))) (<= |c_ULTIMATE.start_main_~y~0#1| (+ .cse4 1)) (<= .cse5 .cse1) (<= |c_ULTIMATE.start_main_~y~0#1| (div (+ (- 1) .cse4) 2)) (forall ((|v_ULTIMATE.start_main_~y~0#1_55| Int)) (or (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ (div (+ (- 1) (div (+ (* |v_ULTIMATE.start_main_~y~0#1_55| (- 3)) 2147483620 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|)) 2)) 2) 2)) (not (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ |c_ULTIMATE.start_main_#t~post8#1| 1))))) (<= |c_ULTIMATE.start_main_~y~0#1| (+ 1 (div (+ .cse6 (- 6) .cse7) 2))) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1|) 2147483646) (<= |c_ULTIMATE.start_main_#t~post8#1| (div (+ .cse6 .cse8 (- 4)) 2)) (<= .cse5 .cse9) (<= .cse0 .cse9) (<= |c_ULTIMATE.start_main_#t~post8#1| (div (+ .cse8 2147483641 .cse10) 2)) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int)) (or (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|) (< (+ |c_ULTIMATE.start_main_#t~post8#1| 2) |v_ULTIMATE.start_main_~y~0#1_55|) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (* 3 |v_ULTIMATE.start_main_~y~0#1_55|) (* 4 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)) 2147483615) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ 2 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)))) (<= (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~j~0#1|) 2147483646)))) is different from false [2022-07-14 14:00:26,801 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_main_#t~post8#1| 1)) (.cse3 (* (- 1) |c_ULTIMATE.start_main_#t~post8#1|)) (.cse2 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|))) (and (forall ((|aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int) (|aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| Int)) (let ((.cse0 (* 2 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|))) (or (<= (+ |c_ULTIMATE.start_main_#t~post8#1| 1) |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63|) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 4) .cse0) 2147483634) (<= 2147483637 (+ |c_ULTIMATE.start_main_~j~0#1| (* |aux_div_aux_div_v_ULTIMATE.start_main_~y~0#1_53_105_63| 5) .cse0))))) (<= .cse1 (div (+ .cse2 2147483646) 2)) (forall ((|v_ULTIMATE.start_main_~y~0#1_55| Int)) (or (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ (div (+ (- 1) (div (+ (* |v_ULTIMATE.start_main_~y~0#1_55| (- 3)) 2147483620 (* (- 1) |c_ULTIMATE.start_main_~j~0#1|)) 2)) 2) 2)) (not (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ |c_ULTIMATE.start_main_#t~post8#1| 1))))) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1|) 2147483646) (<= |c_ULTIMATE.start_main_#t~post8#1| (div (+ (div (+ .cse2 2147483634) 2) .cse3 (- 4)) 2)) (<= .cse1 (div (+ (div (+ .cse2 2147483637) 2) 2) 2)) (<= |c_ULTIMATE.start_main_#t~post8#1| (div (+ .cse3 2147483641 .cse2) 2)) (forall ((|aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int) (|v_ULTIMATE.start_main_~y~0#1_55| Int) (|aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| Int)) (or (>= |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (> 0 |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|) (< (+ |c_ULTIMATE.start_main_#t~post8#1| 2) |v_ULTIMATE.start_main_~y~0#1_55|) (<= (+ |c_ULTIMATE.start_main_#t~post8#1| |c_ULTIMATE.start_main_~j~0#1| (* |aux_mod_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63| 2) (* 3 |v_ULTIMATE.start_main_~y~0#1_55|) (* 4 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)) 2147483615) (<= |v_ULTIMATE.start_main_~y~0#1_55| (+ 2 |aux_div_aux_div_v_ULTIMATE.start_main_~j~0#1_90_110_63|)))))) is different from false