./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 13:34:18,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 13:34:18,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 13:34:18,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 13:34:18,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 13:34:18,625 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 13:34:18,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 13:34:18,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 13:34:18,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 13:34:18,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 13:34:18,638 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 13:34:18,640 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 13:34:18,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 13:34:18,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 13:34:18,644 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 13:34:18,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 13:34:18,648 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 13:34:18,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 13:34:18,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 13:34:18,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 13:34:18,658 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 13:34:18,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 13:34:18,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 13:34:18,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 13:34:18,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 13:34:18,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 13:34:18,667 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 13:34:18,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 13:34:18,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 13:34:18,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 13:34:18,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 13:34:18,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 13:34:18,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 13:34:18,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 13:34:18,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 13:34:18,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 13:34:18,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 13:34:18,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 13:34:18,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 13:34:18,676 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 13:34:18,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 13:34:18,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 13:34:18,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-23 13:34:18,715 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 13:34:18,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 13:34:18,716 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 13:34:18,716 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 13:34:18,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 13:34:18,717 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 13:34:18,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 13:34:18,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 13:34:18,718 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 13:34:18,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 13:34:18,719 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 13:34:18,719 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 13:34:18,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 13:34:18,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 13:34:18,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 13:34:18,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 13:34:18,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 13:34:18,720 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 13:34:18,720 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-23 13:34:18,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 13:34:18,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 13:34:18,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 13:34:18,722 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 13:34:18,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 13:34:18,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 13:34:18,722 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 13:34:18,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:34:18,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 13:34:18,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 13:34:18,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 13:34:18,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 13:34:18,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 13:34:18,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 13:34:18,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2abfa4882ab8ec6bd7a33a5fbeaa8a88ba40a897019218fc162e52833c89454b [2022-07-23 13:34:18,991 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 13:34:19,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 13:34:19,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 13:34:19,019 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 13:34:19,020 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 13:34:19,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2022-07-23 13:34:19,085 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d417b95d2/8fd313bffb304189842b464aab9ce0d8/FLAG3274b42da [2022-07-23 13:34:19,486 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 13:34:19,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c [2022-07-23 13:34:19,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d417b95d2/8fd313bffb304189842b464aab9ce0d8/FLAG3274b42da [2022-07-23 13:34:19,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d417b95d2/8fd313bffb304189842b464aab9ce0d8 [2022-07-23 13:34:19,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 13:34:19,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 13:34:19,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 13:34:19,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 13:34:19,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 13:34:19,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b3e39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19, skipping insertion in model container [2022-07-23 13:34:19,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 13:34:19,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 13:34:19,686 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[755,768] [2022-07-23 13:34:19,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:34:19,805 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 13:34:19,819 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_4-2a.c.cil.c[755,768] [2022-07-23 13:34:19,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 13:34:19,886 INFO L208 MainTranslator]: Completed translation [2022-07-23 13:34:19,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19 WrapperNode [2022-07-23 13:34:19,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 13:34:19,887 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 13:34:19,887 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 13:34:19,887 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 13:34:19,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,902 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,929 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-07-23 13:34:19,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 13:34:19,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 13:34:19,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 13:34:19,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 13:34:19,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,944 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 13:34:19,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 13:34:19,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 13:34:19,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 13:34:19,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (1/1) ... [2022-07-23 13:34:19,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 13:34:19,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:19,991 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) [2022-07-23 13:34:19,999 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 [2022-07-23 13:34:20,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 13:34:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 13:34:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-07-23 13:34:20,026 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-07-23 13:34:20,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 13:34:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 13:34:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2022-07-23 13:34:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2022-07-23 13:34:20,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-23 13:34:20,027 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-23 13:34:20,132 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 13:34:20,134 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 13:34:20,540 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 13:34:20,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 13:34:20,547 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 13:34:20,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:20 BoogieIcfgContainer [2022-07-23 13:34:20,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 13:34:20,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 13:34:20,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 13:34:20,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 13:34:20,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 01:34:19" (1/3) ... [2022-07-23 13:34:20,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e3676f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:20, skipping insertion in model container [2022-07-23 13:34:20,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 01:34:19" (2/3) ... [2022-07-23 13:34:20,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35e3676f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:34:20, skipping insertion in model container [2022-07-23 13:34:20,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:20" (3/3) ... [2022-07-23 13:34:20,558 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_4-2a.c.cil.c [2022-07-23 13:34:20,570 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 13:34:20,571 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-07-23 13:34:20,635 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 13:34:20,641 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@35093cce, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3189470b [2022-07-23 13:34:20,641 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-07-23 13:34:20,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 124 states, 92 states have (on average 1.7717391304347827) internal successors, (163), 112 states have internal predecessors, (163), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-23 13:34:20,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:34:20,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:20,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:20,669 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:20,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:20,674 INFO L85 PathProgramCache]: Analyzing trace with hash -475863887, now seen corresponding path program 1 times [2022-07-23 13:34:20,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:20,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411795378] [2022-07-23 13:34:20,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:20,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:20,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:20,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411795378] [2022-07-23 13:34:20,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411795378] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:20,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:20,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-23 13:34:20,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810642921] [2022-07-23 13:34:20,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:20,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-23 13:34:20,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:20,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-23 13:34:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 13:34:20,874 INFO L87 Difference]: Start difference. First operand has 124 states, 92 states have (on average 1.7717391304347827) internal successors, (163), 112 states have internal predecessors, (163), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:20,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:20,929 INFO L93 Difference]: Finished difference Result 243 states and 362 transitions. [2022-07-23 13:34:20,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-23 13:34:20,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-23 13:34:20,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:20,939 INFO L225 Difference]: With dead ends: 243 [2022-07-23 13:34:20,940 INFO L226 Difference]: Without dead ends: 112 [2022-07-23 13:34:20,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-23 13:34:20,948 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:20,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:20,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-07-23 13:34:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-07-23 13:34:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 84 states have (on average 1.5714285714285714) internal successors, (132), 102 states have internal predecessors, (132), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 145 transitions. [2022-07-23 13:34:20,985 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 145 transitions. Word has length 9 [2022-07-23 13:34:20,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:20,986 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 145 transitions. [2022-07-23 13:34:20,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:20,986 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 145 transitions. [2022-07-23 13:34:20,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-23 13:34:20,987 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:20,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:20,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 13:34:20,988 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:20,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:20,989 INFO L85 PathProgramCache]: Analyzing trace with hash -476805235, now seen corresponding path program 1 times [2022-07-23 13:34:20,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:20,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288932092] [2022-07-23 13:34:20,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:20,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:21,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:21,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:21,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288932092] [2022-07-23 13:34:21,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288932092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:21,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:21,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:34:21,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167846836] [2022-07-23 13:34:21,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:21,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:21,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:21,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:21,057 INFO L87 Difference]: Start difference. First operand 112 states and 145 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:21,174 INFO L93 Difference]: Finished difference Result 283 states and 381 transitions. [2022-07-23 13:34:21,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:21,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-07-23 13:34:21,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:21,177 INFO L225 Difference]: With dead ends: 283 [2022-07-23 13:34:21,177 INFO L226 Difference]: Without dead ends: 174 [2022-07-23 13:34:21,178 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 [2022-07-23 13:34:21,179 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 106 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:21,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 385 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:21,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-07-23 13:34:21,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 161. [2022-07-23 13:34:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 132 states have (on average 1.5681818181818181) internal successors, (207), 150 states have internal predecessors, (207), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:21,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 220 transitions. [2022-07-23 13:34:21,201 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 220 transitions. Word has length 9 [2022-07-23 13:34:21,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:21,202 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 220 transitions. [2022-07-23 13:34:21,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:21,203 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 220 transitions. [2022-07-23 13:34:21,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-23 13:34:21,204 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:21,205 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:21,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 13:34:21,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:21,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:21,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1876350822, now seen corresponding path program 1 times [2022-07-23 13:34:21,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:21,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534727117] [2022-07-23 13:34:21,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:21,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:21,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:21,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:21,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:21,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534727117] [2022-07-23 13:34:21,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534727117] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:21,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:21,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:21,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425605313] [2022-07-23 13:34:21,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:21,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:21,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:21,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:21,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:21,257 INFO L87 Difference]: Start difference. First operand 161 states and 220 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:21,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:21,376 INFO L93 Difference]: Finished difference Result 196 states and 259 transitions. [2022-07-23 13:34:21,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:21,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-23 13:34:21,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:21,378 INFO L225 Difference]: With dead ends: 196 [2022-07-23 13:34:21,379 INFO L226 Difference]: Without dead ends: 193 [2022-07-23 13:34:21,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:21,380 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 161 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:21,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 515 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:21,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2022-07-23 13:34:21,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 168. [2022-07-23 13:34:21,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 139 states have (on average 1.5683453237410072) internal successors, (218), 157 states have internal predecessors, (218), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 231 transitions. [2022-07-23 13:34:21,394 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 231 transitions. Word has length 13 [2022-07-23 13:34:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:21,394 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 231 transitions. [2022-07-23 13:34:21,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 231 transitions. [2022-07-23 13:34:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-23 13:34:21,395 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:21,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:21,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 13:34:21,396 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:21,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:21,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1962666541, now seen corresponding path program 1 times [2022-07-23 13:34:21,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:21,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267335892] [2022-07-23 13:34:21,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:21,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:21,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:21,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:21,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267335892] [2022-07-23 13:34:21,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267335892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:21,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:21,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:21,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397448393] [2022-07-23 13:34:21,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:21,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:21,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:21,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:21,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:21,445 INFO L87 Difference]: Start difference. First operand 168 states and 231 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:21,584 INFO L93 Difference]: Finished difference Result 316 states and 420 transitions. [2022-07-23 13:34:21,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:21,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-07-23 13:34:21,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:21,586 INFO L225 Difference]: With dead ends: 316 [2022-07-23 13:34:21,586 INFO L226 Difference]: Without dead ends: 203 [2022-07-23 13:34:21,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:21,588 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 165 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:21,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 525 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:21,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-07-23 13:34:21,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 172. [2022-07-23 13:34:21,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 143 states have (on average 1.5454545454545454) internal successors, (221), 161 states have internal predecessors, (221), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:21,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 234 transitions. [2022-07-23 13:34:21,630 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 234 transitions. Word has length 14 [2022-07-23 13:34:21,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:21,630 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 234 transitions. [2022-07-23 13:34:21,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:21,631 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 234 transitions. [2022-07-23 13:34:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-23 13:34:21,631 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:21,632 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:21,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 13:34:21,632 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:21,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:21,632 INFO L85 PathProgramCache]: Analyzing trace with hash 2026818261, now seen corresponding path program 1 times [2022-07-23 13:34:21,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:21,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532346265] [2022-07-23 13:34:21,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:21,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:21,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:21,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:21,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532346265] [2022-07-23 13:34:21,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532346265] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:21,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587695543] [2022-07-23 13:34:21,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:21,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:21,717 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) [2022-07-23 13:34:21,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-23 13:34:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:21,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:21,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:21,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:21,863 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:21,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587695543] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:21,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:21,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:21,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600673074] [2022-07-23 13:34:21,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:21,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:21,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:21,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:21,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:21,865 INFO L87 Difference]: Start difference. First operand 172 states and 234 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:21,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:21,973 INFO L93 Difference]: Finished difference Result 242 states and 331 transitions. [2022-07-23 13:34:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:21,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-07-23 13:34:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:21,975 INFO L225 Difference]: With dead ends: 242 [2022-07-23 13:34:21,975 INFO L226 Difference]: Without dead ends: 238 [2022-07-23 13:34:21,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:21,976 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 122 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:21,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 481 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-23 13:34:21,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 208. [2022-07-23 13:34:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 179 states have (on average 1.5698324022346368) internal successors, (281), 196 states have internal predecessors, (281), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 294 transitions. [2022-07-23 13:34:21,988 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 294 transitions. Word has length 16 [2022-07-23 13:34:21,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:21,988 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 294 transitions. [2022-07-23 13:34:21,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:21,988 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 294 transitions. [2022-07-23 13:34:21,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-23 13:34:21,989 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:21,989 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:22,051 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-23 13:34:22,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:22,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:22,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:22,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1963115407, now seen corresponding path program 1 times [2022-07-23 13:34:22,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:22,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114355922] [2022-07-23 13:34:22,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:22,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:22,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:22,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:22,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114355922] [2022-07-23 13:34:22,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114355922] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:22,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595254073] [2022-07-23 13:34:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:22,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:22,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:22,235 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) [2022-07-23 13:34:22,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-23 13:34:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:22,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-23 13:34:22,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:22,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:22,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595254073] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:22,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:22,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-07-23 13:34:22,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605691279] [2022-07-23 13:34:22,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:22,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:22,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:22,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:22,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:22,325 INFO L87 Difference]: Start difference. First operand 208 states and 294 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:22,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:22,387 INFO L93 Difference]: Finished difference Result 260 states and 365 transitions. [2022-07-23 13:34:22,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:22,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-07-23 13:34:22,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:22,391 INFO L225 Difference]: With dead ends: 260 [2022-07-23 13:34:22,391 INFO L226 Difference]: Without dead ends: 258 [2022-07-23 13:34:22,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:22,396 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 28 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 294 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:22,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 294 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-07-23 13:34:22,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 201. [2022-07-23 13:34:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 172 states have (on average 1.5465116279069768) internal successors, (266), 189 states have internal predecessors, (266), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 279 transitions. [2022-07-23 13:34:22,407 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 279 transitions. Word has length 15 [2022-07-23 13:34:22,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:22,407 INFO L495 AbstractCegarLoop]: Abstraction has 201 states and 279 transitions. [2022-07-23 13:34:22,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:22,408 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 279 transitions. [2022-07-23 13:34:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-23 13:34:22,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:22,409 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:22,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:22,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-23 13:34:22,633 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:22,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:22,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1593143292, now seen corresponding path program 1 times [2022-07-23 13:34:22,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:22,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660934117] [2022-07-23 13:34:22,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:22,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:22,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:22,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:22,669 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-07-23 13:34:22,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:22,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660934117] [2022-07-23 13:34:22,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660934117] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:22,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533375339] [2022-07-23 13:34:22,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:22,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:22,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:22,671 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) [2022-07-23 13:34:22,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-23 13:34:22,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:22,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 13:34:22,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:22,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-23 13:34:22,735 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:22,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533375339] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:22,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:22,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-07-23 13:34:22,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712085778] [2022-07-23 13:34:22,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:22,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:34:22,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:22,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:34:22,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:22,737 INFO L87 Difference]: Start difference. First operand 201 states and 279 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:22,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:22,767 INFO L93 Difference]: Finished difference Result 210 states and 288 transitions. [2022-07-23 13:34:22,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:34:22,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-07-23 13:34:22,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:22,771 INFO L225 Difference]: With dead ends: 210 [2022-07-23 13:34:22,771 INFO L226 Difference]: Without dead ends: 209 [2022-07-23 13:34:22,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:22,773 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 3 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:22,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 264 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:22,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-07-23 13:34:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 198. [2022-07-23 13:34:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 170 states have (on average 1.535294117647059) internal successors, (261), 186 states have internal predecessors, (261), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2022-07-23 13:34:22,798 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 274 transitions. Word has length 17 [2022-07-23 13:34:22,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:22,798 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 274 transitions. [2022-07-23 13:34:22,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:22,799 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 274 transitions. [2022-07-23 13:34:22,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-23 13:34:22,806 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:22,806 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:22,833 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:23,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:23,031 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:23,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1255353667, now seen corresponding path program 1 times [2022-07-23 13:34:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:23,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623980145] [2022-07-23 13:34:23,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:23,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:23,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623980145] [2022-07-23 13:34:23,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623980145] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:23,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821002915] [2022-07-23 13:34:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:23,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:23,095 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) [2022-07-23 13:34:23,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-23 13:34:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:23,141 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 13:34:23,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:23,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821002915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:23,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:23,173 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:23,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330089350] [2022-07-23 13:34:23,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:23,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:23,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:23,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:23,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:23,176 INFO L87 Difference]: Start difference. First operand 198 states and 274 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:23,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:23,262 INFO L93 Difference]: Finished difference Result 241 states and 328 transitions. [2022-07-23 13:34:23,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:23,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-07-23 13:34:23,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:23,264 INFO L225 Difference]: With dead ends: 241 [2022-07-23 13:34:23,265 INFO L226 Difference]: Without dead ends: 238 [2022-07-23 13:34:23,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:23,265 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 107 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:23,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 482 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:23,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2022-07-23 13:34:23,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 206. [2022-07-23 13:34:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 178 states have (on average 1.5280898876404494) internal successors, (272), 194 states have internal predecessors, (272), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 285 transitions. [2022-07-23 13:34:23,279 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 285 transitions. Word has length 18 [2022-07-23 13:34:23,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:23,279 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 285 transitions. [2022-07-23 13:34:23,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-23 13:34:23,279 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 285 transitions. [2022-07-23 13:34:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-23 13:34:23,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:23,281 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:23,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:23,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:23,495 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:23,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:23,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1571854273, now seen corresponding path program 1 times [2022-07-23 13:34:23,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:23,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002229329] [2022-07-23 13:34:23,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-23 13:34:23,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:23,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002229329] [2022-07-23 13:34:23,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002229329] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:23,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:23,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 13:34:23,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027995972] [2022-07-23 13:34:23,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:23,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:23,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:23,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:23,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:23,534 INFO L87 Difference]: Start difference. First operand 206 states and 285 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:23,596 INFO L93 Difference]: Finished difference Result 261 states and 361 transitions. [2022-07-23 13:34:23,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:23,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-23 13:34:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:23,598 INFO L225 Difference]: With dead ends: 261 [2022-07-23 13:34:23,598 INFO L226 Difference]: Without dead ends: 259 [2022-07-23 13:34:23,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:23,600 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 24 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 401 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 [2022-07-23 13:34:23,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 401 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:23,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-07-23 13:34:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 206. [2022-07-23 13:34:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 178 states have (on average 1.5168539325842696) internal successors, (270), 194 states have internal predecessors, (270), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 283 transitions. [2022-07-23 13:34:23,612 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 283 transitions. Word has length 19 [2022-07-23 13:34:23,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:23,614 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 283 transitions. [2022-07-23 13:34:23,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 13:34:23,614 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 283 transitions. [2022-07-23 13:34:23,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-23 13:34:23,615 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:23,615 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:23,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-23 13:34:23,615 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:23,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:23,616 INFO L85 PathProgramCache]: Analyzing trace with hash -159419185, now seen corresponding path program 1 times [2022-07-23 13:34:23,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:23,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969879468] [2022-07-23 13:34:23,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:23,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:23,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:23,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:23,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969879468] [2022-07-23 13:34:23,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969879468] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:23,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795254208] [2022-07-23 13:34:23,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:23,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:23,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:23,714 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) [2022-07-23 13:34:23,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-23 13:34:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:23,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:23,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:23,788 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:23,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795254208] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:23,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:23,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:23,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799727490] [2022-07-23 13:34:23,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:23,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:23,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:23,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:23,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:23,789 INFO L87 Difference]: Start difference. First operand 206 states and 283 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:23,880 INFO L93 Difference]: Finished difference Result 236 states and 324 transitions. [2022-07-23 13:34:23,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:23,880 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-07-23 13:34:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:23,882 INFO L225 Difference]: With dead ends: 236 [2022-07-23 13:34:23,882 INFO L226 Difference]: Without dead ends: 233 [2022-07-23 13:34:23,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:23,883 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 112 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:23,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 479 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:23,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2022-07-23 13:34:23,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 194. [2022-07-23 13:34:23,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 169 states have (on average 1.4792899408284024) internal successors, (250), 182 states have internal predecessors, (250), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:23,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 263 transitions. [2022-07-23 13:34:23,893 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 263 transitions. Word has length 23 [2022-07-23 13:34:23,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:23,894 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 263 transitions. [2022-07-23 13:34:23,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2022-07-23 13:34:23,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-23 13:34:23,894 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:23,895 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:23,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:24,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-23 13:34:24,104 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:24,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1990531529, now seen corresponding path program 1 times [2022-07-23 13:34:24,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:24,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545613352] [2022-07-23 13:34:24,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:24,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:24,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:24,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545613352] [2022-07-23 13:34:24,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545613352] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:24,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733138596] [2022-07-23 13:34:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:24,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:24,165 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) [2022-07-23 13:34:24,167 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-23 13:34:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:24,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:24,245 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:24,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:24,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733138596] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:24,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:24,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2022-07-23 13:34:24,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006311252] [2022-07-23 13:34:24,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:24,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 13:34:24,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:24,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 13:34:24,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:24,247 INFO L87 Difference]: Start difference. First operand 194 states and 263 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:24,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:24,325 INFO L93 Difference]: Finished difference Result 224 states and 303 transitions. [2022-07-23 13:34:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-23 13:34:24,326 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-07-23 13:34:24,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:24,327 INFO L225 Difference]: With dead ends: 224 [2022-07-23 13:34:24,328 INFO L226 Difference]: Without dead ends: 221 [2022-07-23 13:34:24,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:24,329 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 96 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:24,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 485 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:24,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2022-07-23 13:34:24,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 183. [2022-07-23 13:34:24,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 171 states have internal predecessors, (235), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-23 13:34:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 248 transitions. [2022-07-23 13:34:24,340 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 248 transitions. Word has length 25 [2022-07-23 13:34:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:24,340 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 248 transitions. [2022-07-23 13:34:24,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-23 13:34:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 248 transitions. [2022-07-23 13:34:24,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-23 13:34:24,342 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:24,342 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:24,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:24,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:24,560 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:24,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:24,561 INFO L85 PathProgramCache]: Analyzing trace with hash 962021647, now seen corresponding path program 1 times [2022-07-23 13:34:24,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:24,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176227323] [2022-07-23 13:34:24,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:24,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:24,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:24,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176227323] [2022-07-23 13:34:24,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176227323] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:24,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328097059] [2022-07-23 13:34:24,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:24,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:24,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:24,672 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) [2022-07-23 13:34:24,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-23 13:34:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:24,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-23 13:34:24,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:24,797 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 13:34:24,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:24,976 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:24,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328097059] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:24,977 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:24,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 9] total 19 [2022-07-23 13:34:24,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135233489] [2022-07-23 13:34:24,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:24,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:24,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:24,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:24,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:24,980 INFO L87 Difference]: Start difference. First operand 183 states and 248 transitions. Second operand has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:26,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:26,354 INFO L93 Difference]: Finished difference Result 601 states and 801 transitions. [2022-07-23 13:34:26,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-23 13:34:26,354 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 30 [2022-07-23 13:34:26,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:26,356 INFO L225 Difference]: With dead ends: 601 [2022-07-23 13:34:26,357 INFO L226 Difference]: Without dead ends: 423 [2022-07-23 13:34:26,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 57 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=187, Invalid=1145, Unknown=0, NotChecked=0, Total=1332 [2022-07-23 13:34:26,358 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 638 mSDsluCounter, 521 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:26,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 636 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1901 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-23 13:34:26,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2022-07-23 13:34:26,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 155. [2022-07-23 13:34:26,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 129 states have (on average 1.426356589147287) internal successors, (184), 140 states have internal predecessors, (184), 9 states have call successors, (9), 6 states have call predecessors, (9), 7 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2022-07-23 13:34:26,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 202 transitions. [2022-07-23 13:34:26,372 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 202 transitions. Word has length 30 [2022-07-23 13:34:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:26,372 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 202 transitions. [2022-07-23 13:34:26,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.631578947368421) internal successors, (31), 14 states have internal predecessors, (31), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:26,372 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 202 transitions. [2022-07-23 13:34:26,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-23 13:34:26,373 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:26,373 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:26,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:26,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:26,584 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:26,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:26,584 INFO L85 PathProgramCache]: Analyzing trace with hash 217587920, now seen corresponding path program 1 times [2022-07-23 13:34:26,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:26,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964074338] [2022-07-23 13:34:26,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:26,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:26,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:26,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:26,697 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:26,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:26,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964074338] [2022-07-23 13:34:26,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964074338] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:26,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:26,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 13:34:26,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425137795] [2022-07-23 13:34:26,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:26,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 13:34:26,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:26,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 13:34:26,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:34:26,699 INFO L87 Difference]: Start difference. First operand 155 states and 202 transitions. Second operand has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:27,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:27,194 INFO L93 Difference]: Finished difference Result 404 states and 517 transitions. [2022-07-23 13:34:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:34:27,195 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-23 13:34:27,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:27,196 INFO L225 Difference]: With dead ends: 404 [2022-07-23 13:34:27,196 INFO L226 Difference]: Without dead ends: 330 [2022-07-23 13:34:27,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-07-23 13:34:27,197 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 486 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 688 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 688 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:27,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 501 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 688 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-23 13:34:27,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2022-07-23 13:34:27,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 166. [2022-07-23 13:34:27,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 137 states have (on average 1.4014598540145986) internal successors, (192), 149 states have internal predecessors, (192), 10 states have call successors, (10), 7 states have call predecessors, (10), 9 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2022-07-23 13:34:27,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 214 transitions. [2022-07-23 13:34:27,211 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 214 transitions. Word has length 37 [2022-07-23 13:34:27,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:27,211 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 214 transitions. [2022-07-23 13:34:27,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.888888888888889) internal successors, (26), 7 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:27,212 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 214 transitions. [2022-07-23 13:34:27,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 13:34:27,213 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:27,213 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:27,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-23 13:34:27,214 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:27,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:27,214 INFO L85 PathProgramCache]: Analyzing trace with hash -394807024, now seen corresponding path program 1 times [2022-07-23 13:34:27,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:27,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551845402] [2022-07-23 13:34:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:27,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:27,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-23 13:34:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-23 13:34:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,321 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:27,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:27,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551845402] [2022-07-23 13:34:27,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551845402] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:27,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880701980] [2022-07-23 13:34:27,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:27,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:27,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:27,324 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) [2022-07-23 13:34:27,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-23 13:34:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:27,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-23 13:34:27,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:27,549 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:27,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:27,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880701980] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:27,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:27,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 19 [2022-07-23 13:34:27,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035945658] [2022-07-23 13:34:27,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:27,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:27,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:27,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:27,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:27,613 INFO L87 Difference]: Start difference. First operand 166 states and 214 transitions. Second operand has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:30,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:30,091 INFO L93 Difference]: Finished difference Result 793 states and 1009 transitions. [2022-07-23 13:34:30,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-23 13:34:30,094 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 41 [2022-07-23 13:34:30,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:30,097 INFO L225 Difference]: With dead ends: 793 [2022-07-23 13:34:30,097 INFO L226 Difference]: Without dead ends: 704 [2022-07-23 13:34:30,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 93 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=1193, Unknown=0, NotChecked=0, Total=1406 [2022-07-23 13:34:30,098 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 1236 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4343 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 4473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 4343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:30,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 407 Invalid, 4473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 4343 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-23 13:34:30,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2022-07-23 13:34:30,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 153. [2022-07-23 13:34:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 128 states have (on average 1.40625) internal successors, (180), 139 states have internal predecessors, (180), 8 states have call successors, (8), 6 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2022-07-23 13:34:30,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 196 transitions. [2022-07-23 13:34:30,122 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 196 transitions. Word has length 41 [2022-07-23 13:34:30,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:30,123 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 196 transitions. [2022-07-23 13:34:30,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.210526315789474) internal successors, (42), 13 states have internal predecessors, (42), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:30,123 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 196 transitions. [2022-07-23 13:34:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 13:34:30,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:30,124 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:30,149 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:30,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-23 13:34:30,347 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:30,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:30,348 INFO L85 PathProgramCache]: Analyzing trace with hash -264308223, now seen corresponding path program 2 times [2022-07-23 13:34:30,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:30,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997789761] [2022-07-23 13:34:30,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:30,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:30,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:30,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:30,524 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:30,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:30,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997789761] [2022-07-23 13:34:30,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997789761] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:30,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:30,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 13:34:30,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117587945] [2022-07-23 13:34:30,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:30,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:34:30,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:30,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:34:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:30,527 INFO L87 Difference]: Start difference. First operand 153 states and 196 transitions. Second operand has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:31,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:31,447 INFO L93 Difference]: Finished difference Result 480 states and 614 transitions. [2022-07-23 13:34:31,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:34:31,447 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2022-07-23 13:34:31,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:31,449 INFO L225 Difference]: With dead ends: 480 [2022-07-23 13:34:31,449 INFO L226 Difference]: Without dead ends: 410 [2022-07-23 13:34:31,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-07-23 13:34:31,450 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 641 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:31,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 707 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-23 13:34:31,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-07-23 13:34:31,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 227. [2022-07-23 13:34:31,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 197 states have (on average 1.4060913705583757) internal successors, (277), 209 states have internal predecessors, (277), 11 states have call successors, (11), 7 states have call predecessors, (11), 9 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-07-23 13:34:31,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 300 transitions. [2022-07-23 13:34:31,467 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 300 transitions. Word has length 41 [2022-07-23 13:34:31,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:31,467 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 300 transitions. [2022-07-23 13:34:31,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.888888888888889) internal successors, (26), 8 states have internal predecessors, (26), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:31,468 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 300 transitions. [2022-07-23 13:34:31,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-23 13:34:31,468 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:31,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:31,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-07-23 13:34:31,469 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:31,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:31,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1073654849, now seen corresponding path program 1 times [2022-07-23 13:34:31,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:31,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782129318] [2022-07-23 13:34:31,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:31,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:31,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:31,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:31,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:31,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:31,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:31,606 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:31,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:31,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782129318] [2022-07-23 13:34:31,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782129318] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:31,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828531556] [2022-07-23 13:34:31,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:31,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:31,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:31,610 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) [2022-07-23 13:34:31,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-23 13:34:31,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:31,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-23 13:34:31,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:31,758 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:31,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:31,954 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-07-23 13:34:31,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828531556] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:31,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:31,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 16 [2022-07-23 13:34:31,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939158382] [2022-07-23 13:34:31,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:31,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-23 13:34:31,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:31,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-23 13:34:31,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-07-23 13:34:31,956 INFO L87 Difference]: Start difference. First operand 227 states and 300 transitions. Second operand has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:32,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:32,827 INFO L93 Difference]: Finished difference Result 624 states and 834 transitions. [2022-07-23 13:34:32,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 13:34:32,828 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) Word has length 41 [2022-07-23 13:34:32,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:32,830 INFO L225 Difference]: With dead ends: 624 [2022-07-23 13:34:32,830 INFO L226 Difference]: Without dead ends: 492 [2022-07-23 13:34:32,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 79 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2022-07-23 13:34:32,832 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 607 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 608 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:32,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [608 Valid, 625 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 13:34:32,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-23 13:34:32,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 338. [2022-07-23 13:34:32,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 298 states have (on average 1.4026845637583893) internal successors, (418), 311 states have internal predecessors, (418), 18 states have call successors, (18), 9 states have call predecessors, (18), 12 states have return successors, (22), 17 states have call predecessors, (22), 17 states have call successors, (22) [2022-07-23 13:34:32,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 458 transitions. [2022-07-23 13:34:32,858 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 458 transitions. Word has length 41 [2022-07-23 13:34:32,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:32,859 INFO L495 AbstractCegarLoop]: Abstraction has 338 states and 458 transitions. [2022-07-23 13:34:32,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 12 states have internal predecessors, (50), 3 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (5), 5 states have call predecessors, (5), 3 states have call successors, (5) [2022-07-23 13:34:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 458 transitions. [2022-07-23 13:34:32,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-23 13:34:32,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:32,860 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:32,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:33,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-23 13:34:33,075 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:33,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:33,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1708184769, now seen corresponding path program 1 times [2022-07-23 13:34:33,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:33,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877480953] [2022-07-23 13:34:33,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:33,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:33,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:33,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:33,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:33,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877480953] [2022-07-23 13:34:33,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877480953] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:33,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533873381] [2022-07-23 13:34:33,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:33,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:33,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:33,194 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) [2022-07-23 13:34:33,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-23 13:34:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-23 13:34:33,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:33,324 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-07-23 13:34:33,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:33,480 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-07-23 13:34:33,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533873381] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:33,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-07-23 13:34:33,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [11, 11] total 20 [2022-07-23 13:34:33,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238633810] [2022-07-23 13:34:33,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:33,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-23 13:34:33,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:33,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-23 13:34:33,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:34:33,481 INFO L87 Difference]: Start difference. First operand 338 states and 458 transitions. Second operand has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:33,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:33,680 INFO L93 Difference]: Finished difference Result 695 states and 947 transitions. [2022-07-23 13:34:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 13:34:33,681 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2022-07-23 13:34:33,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:33,683 INFO L225 Difference]: With dead ends: 695 [2022-07-23 13:34:33,684 INFO L226 Difference]: Without dead ends: 607 [2022-07-23 13:34:33,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2022-07-23 13:34:33,685 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 166 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 1813 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:33,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 1813 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2022-07-23 13:34:33,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 327. [2022-07-23 13:34:33,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 290 states have (on average 1.4068965517241379) internal successors, (408), 302 states have internal predecessors, (408), 17 states have call successors, (17), 8 states have call predecessors, (17), 10 states have return successors, (19), 16 states have call predecessors, (19), 16 states have call successors, (19) [2022-07-23 13:34:33,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 444 transitions. [2022-07-23 13:34:33,704 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 444 transitions. Word has length 45 [2022-07-23 13:34:33,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:33,705 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 444 transitions. [2022-07-23 13:34:33,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:33,705 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 444 transitions. [2022-07-23 13:34:33,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-23 13:34:33,706 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:33,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:33,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:33,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-07-23 13:34:33,927 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:33,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:33,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1609884674, now seen corresponding path program 1 times [2022-07-23 13:34:33,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:33,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215838457] [2022-07-23 13:34:33,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:33,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:33,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-23 13:34:33,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:33,965 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:33,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:33,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215838457] [2022-07-23 13:34:33,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215838457] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:33,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570196841] [2022-07-23 13:34:33,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:33,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:33,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:33,967 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) [2022-07-23 13:34:33,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-23 13:34:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:34,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 13:34:34,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:34,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:34,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570196841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:34,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:34,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-07-23 13:34:34,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134197886] [2022-07-23 13:34:34,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:34,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-23 13:34:34,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:34,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-23 13:34:34,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:34,035 INFO L87 Difference]: Start difference. First operand 327 states and 444 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:34,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:34,083 INFO L93 Difference]: Finished difference Result 586 states and 797 transitions. [2022-07-23 13:34:34,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-23 13:34:34,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2022-07-23 13:34:34,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:34,085 INFO L225 Difference]: With dead ends: 586 [2022-07-23 13:34:34,085 INFO L226 Difference]: Without dead ends: 351 [2022-07-23 13:34:34,086 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:34,086 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 10 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:34,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 244 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2022-07-23 13:34:34,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 337. [2022-07-23 13:34:34,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 300 states have (on average 1.3933333333333333) internal successors, (418), 312 states have internal predecessors, (418), 17 states have call successors, (17), 8 states have call predecessors, (17), 10 states have return successors, (19), 16 states have call predecessors, (19), 16 states have call successors, (19) [2022-07-23 13:34:34,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 454 transitions. [2022-07-23 13:34:34,107 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 454 transitions. Word has length 47 [2022-07-23 13:34:34,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:34,107 INFO L495 AbstractCegarLoop]: Abstraction has 337 states and 454 transitions. [2022-07-23 13:34:34,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:34,107 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 454 transitions. [2022-07-23 13:34:34,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 13:34:34,108 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:34,108 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:34,132 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:34,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-23 13:34:34,322 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:34,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:34,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1216283857, now seen corresponding path program 1 times [2022-07-23 13:34:34,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:34,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359896474] [2022-07-23 13:34:34,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:34,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:34,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:34,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:34,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:34,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:34,414 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:34,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:34,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359896474] [2022-07-23 13:34:34,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359896474] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:34,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213887597] [2022-07-23 13:34:34,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:34,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:34,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:34,417 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) [2022-07-23 13:34:34,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-23 13:34:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:34,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-23 13:34:34,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:34,524 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:34,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:34,608 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:34,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213887597] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:34,609 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:34,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 11 [2022-07-23 13:34:34,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444711739] [2022-07-23 13:34:34,609 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:34,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:34:34,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:34,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:34:34,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:34,611 INFO L87 Difference]: Start difference. First operand 337 states and 454 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:35,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:35,935 INFO L93 Difference]: Finished difference Result 1032 states and 1398 transitions. [2022-07-23 13:34:35,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-07-23 13:34:35,939 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-23 13:34:35,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:35,942 INFO L225 Difference]: With dead ends: 1032 [2022-07-23 13:34:35,942 INFO L226 Difference]: Without dead ends: 919 [2022-07-23 13:34:35,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=411, Unknown=0, NotChecked=0, Total=506 [2022-07-23 13:34:35,947 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 370 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 2554 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 2592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:35,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 838 Invalid, 2592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 2554 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-23 13:34:35,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2022-07-23 13:34:35,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 475. [2022-07-23 13:34:35,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 428 states have (on average 1.4042056074766356) internal successors, (601), 441 states have internal predecessors, (601), 24 states have call successors, (24), 10 states have call predecessors, (24), 13 states have return successors, (28), 23 states have call predecessors, (28), 23 states have call successors, (28) [2022-07-23 13:34:35,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 653 transitions. [2022-07-23 13:34:35,977 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 653 transitions. Word has length 48 [2022-07-23 13:34:35,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:35,977 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 653 transitions. [2022-07-23 13:34:35,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:35,978 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 653 transitions. [2022-07-23 13:34:35,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 13:34:35,979 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:35,979 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:36,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:36,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:36,191 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:36,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:36,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1216281935, now seen corresponding path program 1 times [2022-07-23 13:34:36,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:36,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297698523] [2022-07-23 13:34:36,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:36,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:36,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:36,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:36,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297698523] [2022-07-23 13:34:36,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297698523] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:36,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [527197011] [2022-07-23 13:34:36,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:36,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:36,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:36,296 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) [2022-07-23 13:34:36,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-23 13:34:36,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:36,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:34:36,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:36,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:36,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [527197011] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:36,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:36,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 19 [2022-07-23 13:34:36,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548840457] [2022-07-23 13:34:36,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:36,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:36,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:36,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:36,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:36,671 INFO L87 Difference]: Start difference. First operand 475 states and 653 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:37,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:37,914 INFO L93 Difference]: Finished difference Result 1166 states and 1605 transitions. [2022-07-23 13:34:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-23 13:34:37,915 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 48 [2022-07-23 13:34:37,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:37,919 INFO L225 Difference]: With dead ends: 1166 [2022-07-23 13:34:37,919 INFO L226 Difference]: Without dead ends: 959 [2022-07-23 13:34:37,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2022-07-23 13:34:37,922 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 621 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 1888 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:37,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 457 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1888 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-23 13:34:37,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2022-07-23 13:34:37,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 605. [2022-07-23 13:34:37,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 548 states have (on average 1.4105839416058394) internal successors, (773), 562 states have internal predecessors, (773), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-23 13:34:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 841 transitions. [2022-07-23 13:34:37,966 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 841 transitions. Word has length 48 [2022-07-23 13:34:37,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:37,966 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 841 transitions. [2022-07-23 13:34:37,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 16 states have internal predecessors, (67), 3 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:34:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 841 transitions. [2022-07-23 13:34:37,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-07-23 13:34:37,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:37,968 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:37,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:38,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-07-23 13:34:38,194 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:38,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:38,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1743227838, now seen corresponding path program 1 times [2022-07-23 13:34:38,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:38,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640271230] [2022-07-23 13:34:38,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:38,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:38,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:38,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,256 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-23 13:34:38,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:38,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640271230] [2022-07-23 13:34:38,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640271230] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:38,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535266650] [2022-07-23 13:34:38,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:38,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:38,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:38,258 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) [2022-07-23 13:34:38,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-23 13:34:38,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-23 13:34:38,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:38,335 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:38,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:38,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535266650] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:38,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:38,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-07-23 13:34:38,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296822272] [2022-07-23 13:34:38,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:38,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:38,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:38,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:38,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:38,337 INFO L87 Difference]: Start difference. First operand 605 states and 841 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:38,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:38,417 INFO L93 Difference]: Finished difference Result 1197 states and 1683 transitions. [2022-07-23 13:34:38,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:38,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2022-07-23 13:34:38,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:38,422 INFO L225 Difference]: With dead ends: 1197 [2022-07-23 13:34:38,422 INFO L226 Difference]: Without dead ends: 681 [2022-07-23 13:34:38,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:38,425 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 50 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:38,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 257 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2022-07-23 13:34:38,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 631. [2022-07-23 13:34:38,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 574 states have (on average 1.4024390243902438) internal successors, (805), 588 states have internal predecessors, (805), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-23 13:34:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 873 transitions. [2022-07-23 13:34:38,468 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 873 transitions. Word has length 48 [2022-07-23 13:34:38,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:38,468 INFO L495 AbstractCegarLoop]: Abstraction has 631 states and 873 transitions. [2022-07-23 13:34:38,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:38,468 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 873 transitions. [2022-07-23 13:34:38,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-23 13:34:38,469 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:38,470 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:38,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:38,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:38,688 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:38,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:38,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1386457629, now seen corresponding path program 1 times [2022-07-23 13:34:38,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:38,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492029065] [2022-07-23 13:34:38,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:38,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:38,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-23 13:34:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,737 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:38,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:38,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492029065] [2022-07-23 13:34:38,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492029065] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:38,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934481602] [2022-07-23 13:34:38,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:38,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:38,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:38,739 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) [2022-07-23 13:34:38,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-23 13:34:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:38,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-23 13:34:38,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-07-23 13:34:38,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-23 13:34:38,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934481602] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:38,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-23 13:34:38,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2022-07-23 13:34:38,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568826910] [2022-07-23 13:34:38,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:38,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:38,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:38,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:38,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-23 13:34:38,812 INFO L87 Difference]: Start difference. First operand 631 states and 873 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:38,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:38,887 INFO L93 Difference]: Finished difference Result 1025 states and 1427 transitions. [2022-07-23 13:34:38,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-23 13:34:38,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 49 [2022-07-23 13:34:38,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:38,890 INFO L225 Difference]: With dead ends: 1025 [2022-07-23 13:34:38,891 INFO L226 Difference]: Without dead ends: 653 [2022-07-23 13:34:38,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-07-23 13:34:38,893 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 15 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:38,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 375 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-23 13:34:38,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-07-23 13:34:38,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 633. [2022-07-23 13:34:38,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 633 states, 576 states have (on average 1.4045138888888888) internal successors, (809), 590 states have internal predecessors, (809), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-23 13:34:38,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 877 transitions. [2022-07-23 13:34:38,928 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 877 transitions. Word has length 49 [2022-07-23 13:34:38,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:38,929 INFO L495 AbstractCegarLoop]: Abstraction has 633 states and 877 transitions. [2022-07-23 13:34:38,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-23 13:34:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 877 transitions. [2022-07-23 13:34:38,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-07-23 13:34:38,930 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:38,930 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:38,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:39,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:39,154 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:39,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:39,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1853774476, now seen corresponding path program 1 times [2022-07-23 13:34:39,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:39,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812801771] [2022-07-23 13:34:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:39,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:39,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:39,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:39,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:39,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 13:34:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:39,377 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:39,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:39,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812801771] [2022-07-23 13:34:39,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812801771] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:39,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:39,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 13:34:39,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135953863] [2022-07-23 13:34:39,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:39,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:34:39,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:39,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:34:39,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:34:39,379 INFO L87 Difference]: Start difference. First operand 633 states and 877 transitions. Second operand has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:40,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:40,461 INFO L93 Difference]: Finished difference Result 1068 states and 1482 transitions. [2022-07-23 13:34:40,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-23 13:34:40,462 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 50 [2022-07-23 13:34:40,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:40,465 INFO L225 Difference]: With dead ends: 1068 [2022-07-23 13:34:40,466 INFO L226 Difference]: Without dead ends: 1067 [2022-07-23 13:34:40,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:40,467 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 742 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:40,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 525 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-23 13:34:40,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2022-07-23 13:34:40,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 629. [2022-07-23 13:34:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 572 states have (on average 1.4038461538461537) internal successors, (803), 586 states have internal predecessors, (803), 31 states have call successors, (31), 12 states have call predecessors, (31), 16 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-07-23 13:34:40,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 871 transitions. [2022-07-23 13:34:40,519 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 871 transitions. Word has length 50 [2022-07-23 13:34:40,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:40,519 INFO L495 AbstractCegarLoop]: Abstraction has 629 states and 871 transitions. [2022-07-23 13:34:40,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 3.6) internal successors, (36), 9 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:40,519 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 871 transitions. [2022-07-23 13:34:40,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:40,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:40,521 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:40,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-07-23 13:34:40,521 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:40,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:40,521 INFO L85 PathProgramCache]: Analyzing trace with hash -80005234, now seen corresponding path program 1 times [2022-07-23 13:34:40,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:40,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635636834] [2022-07-23 13:34:40,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:40,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-23 13:34:40,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:40,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:40,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635636834] [2022-07-23 13:34:40,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635636834] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:40,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477375636] [2022-07-23 13:34:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:40,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:40,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:40,687 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:40,697 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-23 13:34:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:40,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 13:34:40,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:40,853 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:40,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:40,936 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:40,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477375636] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:40,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:40,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 19 [2022-07-23 13:34:40,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346176469] [2022-07-23 13:34:40,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:40,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:40,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:40,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:40,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:40,938 INFO L87 Difference]: Start difference. First operand 629 states and 871 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 13:34:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:46,106 INFO L93 Difference]: Finished difference Result 3384 states and 4841 transitions. [2022-07-23 13:34:46,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-07-23 13:34:46,106 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 56 [2022-07-23 13:34:46,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:46,115 INFO L225 Difference]: With dead ends: 3384 [2022-07-23 13:34:46,115 INFO L226 Difference]: Without dead ends: 2998 [2022-07-23 13:34:46,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 134 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 695 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=512, Invalid=2794, Unknown=0, NotChecked=0, Total=3306 [2022-07-23 13:34:46,118 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 2252 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 8794 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 9074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 8794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:46,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2252 Valid, 736 Invalid, 9074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 8794 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-07-23 13:34:46,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2022-07-23 13:34:46,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 685. [2022-07-23 13:34:46,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 625 states have (on average 1.3952) internal successors, (872), 638 states have internal predecessors, (872), 34 states have call successors, (34), 13 states have call predecessors, (34), 16 states have return successors, (39), 33 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-23 13:34:46,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 945 transitions. [2022-07-23 13:34:46,175 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 945 transitions. Word has length 56 [2022-07-23 13:34:46,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:46,175 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 945 transitions. [2022-07-23 13:34:46,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 14 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-23 13:34:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 945 transitions. [2022-07-23 13:34:46,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:46,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:46,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:46,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:46,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-07-23 13:34:46,391 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:46,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:46,392 INFO L85 PathProgramCache]: Analyzing trace with hash 39567138, now seen corresponding path program 1 times [2022-07-23 13:34:46,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:46,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334271979] [2022-07-23 13:34:46,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:46,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:46,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:46,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:46,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:46,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:46,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:46,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334271979] [2022-07-23 13:34:46,509 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334271979] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:46,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [904567233] [2022-07-23 13:34:46,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:46,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:46,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:46,512 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:46,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-23 13:34:46,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:46,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-23 13:34:46,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:46,617 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:46,617 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:46,702 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:46,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [904567233] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:46,702 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:46,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 13 [2022-07-23 13:34:46,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131540809] [2022-07-23 13:34:46,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:46,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-23 13:34:46,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:46,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-23 13:34:46,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2022-07-23 13:34:46,705 INFO L87 Difference]: Start difference. First operand 685 states and 945 transitions. Second operand has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:49,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:49,350 INFO L93 Difference]: Finished difference Result 2890 states and 4114 transitions. [2022-07-23 13:34:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-23 13:34:49,351 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2022-07-23 13:34:49,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:49,360 INFO L225 Difference]: With dead ends: 2890 [2022-07-23 13:34:49,360 INFO L226 Difference]: Without dead ends: 2755 [2022-07-23 13:34:49,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=1280, Unknown=0, NotChecked=0, Total=1560 [2022-07-23 13:34:49,362 INFO L413 NwaCegarLoop]: 577 mSDtfsCounter, 754 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4988 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 5111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 4988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:49,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 695 Invalid, 5111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 4988 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-23 13:34:49,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-07-23 13:34:49,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 708. [2022-07-23 13:34:49,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 647 states have (on average 1.3910355486862442) internal successors, (900), 659 states have internal predecessors, (900), 35 states have call successors, (35), 14 states have call predecessors, (35), 16 states have return successors, (39), 34 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-23 13:34:49,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 974 transitions. [2022-07-23 13:34:49,427 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 974 transitions. Word has length 56 [2022-07-23 13:34:49,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:49,428 INFO L495 AbstractCegarLoop]: Abstraction has 708 states and 974 transitions. [2022-07-23 13:34:49,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.230769230769231) internal successors, (42), 9 states have internal predecessors, (42), 2 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-23 13:34:49,428 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 974 transitions. [2022-07-23 13:34:49,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:49,429 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:49,429 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:49,454 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:49,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:49,643 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:49,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:49,644 INFO L85 PathProgramCache]: Analyzing trace with hash 39569060, now seen corresponding path program 1 times [2022-07-23 13:34:49,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:49,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391820956] [2022-07-23 13:34:49,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:49,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:49,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:49,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:49,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:49,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:49,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:49,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:49,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391820956] [2022-07-23 13:34:49,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391820956] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:49,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370028658] [2022-07-23 13:34:49,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:49,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:49,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:49,758 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:49,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-07-23 13:34:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:49,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-23 13:34:49,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:49,953 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:49,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-23 13:34:50,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370028658] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:50,102 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:50,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 21 [2022-07-23 13:34:50,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683487858] [2022-07-23 13:34:50,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:50,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-23 13:34:50,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-23 13:34:50,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-07-23 13:34:50,105 INFO L87 Difference]: Start difference. First operand 708 states and 974 transitions. Second operand has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:53,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:53,065 INFO L93 Difference]: Finished difference Result 2445 states and 3394 transitions. [2022-07-23 13:34:53,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-07-23 13:34:53,065 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 56 [2022-07-23 13:34:53,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:53,072 INFO L225 Difference]: With dead ends: 2445 [2022-07-23 13:34:53,072 INFO L226 Difference]: Without dead ends: 2314 [2022-07-23 13:34:53,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 120 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=403, Invalid=2459, Unknown=0, NotChecked=0, Total=2862 [2022-07-23 13:34:53,074 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 1392 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 5507 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 5704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 5507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:53,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 448 Invalid, 5704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 5507 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-23 13:34:53,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2022-07-23 13:34:53,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 724. [2022-07-23 13:34:53,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 662 states have (on average 1.3882175226586102) internal successors, (919), 673 states have internal predecessors, (919), 36 states have call successors, (36), 15 states have call predecessors, (36), 16 states have return successors, (39), 35 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-23 13:34:53,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 994 transitions. [2022-07-23 13:34:53,134 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 994 transitions. Word has length 56 [2022-07-23 13:34:53,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:53,134 INFO L495 AbstractCegarLoop]: Abstraction has 724 states and 994 transitions. [2022-07-23 13:34:53,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.5238095238095237) internal successors, (74), 17 states have internal predecessors, (74), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-07-23 13:34:53,135 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 994 transitions. [2022-07-23 13:34:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-07-23 13:34:53,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:53,136 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:53,161 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-07-23 13:34:53,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:53,361 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:53,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -769779488, now seen corresponding path program 2 times [2022-07-23 13:34:53,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:53,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336859190] [2022-07-23 13:34:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:53,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:53,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:53,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:53,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:53,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:53,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:53,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 13:34:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:53,503 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-07-23 13:34:53,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:53,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336859190] [2022-07-23 13:34:53,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336859190] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:34:53,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972398004] [2022-07-23 13:34:53,504 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-23 13:34:53,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:53,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:34:53,508 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:34:53,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-07-23 13:34:53,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-23 13:34:53,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-23 13:34:53,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-23 13:34:53,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:34:53,706 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:53,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:34:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:53,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972398004] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:34:53,805 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:34:53,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 19 [2022-07-23 13:34:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143818487] [2022-07-23 13:34:53,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:34:53,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-23 13:34:53,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-23 13:34:53,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2022-07-23 13:34:53,806 INFO L87 Difference]: Start difference. First operand 724 states and 994 transitions. Second operand has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 13:34:57,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:57,665 INFO L93 Difference]: Finished difference Result 2693 states and 3735 transitions. [2022-07-23 13:34:57,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-07-23 13:34:57,665 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2022-07-23 13:34:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:57,672 INFO L225 Difference]: With dead ends: 2693 [2022-07-23 13:34:57,672 INFO L226 Difference]: Without dead ends: 2323 [2022-07-23 13:34:57,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=332, Invalid=1738, Unknown=0, NotChecked=0, Total=2070 [2022-07-23 13:34:57,675 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 1862 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 6511 mSolverCounterSat, 251 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 6762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 251 IncrementalHoareTripleChecker+Valid, 6511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:57,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 561 Invalid, 6762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [251 Valid, 6511 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-23 13:34:57,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-07-23 13:34:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 736. [2022-07-23 13:34:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 671 states have (on average 1.3740685543964233) internal successors, (922), 679 states have internal predecessors, (922), 39 states have call successors, (39), 18 states have call predecessors, (39), 16 states have return successors, (39), 38 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-23 13:34:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1000 transitions. [2022-07-23 13:34:57,733 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1000 transitions. Word has length 56 [2022-07-23 13:34:57,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:57,733 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 1000 transitions. [2022-07-23 13:34:57,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.210526315789474) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (6), 4 states have call predecessors, (6), 2 states have call successors, (6) [2022-07-23 13:34:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1000 transitions. [2022-07-23 13:34:57,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:34:57,735 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:57,735 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:57,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-07-23 13:34:57,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:34:57,959 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:57,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:57,959 INFO L85 PathProgramCache]: Analyzing trace with hash -1350874477, now seen corresponding path program 1 times [2022-07-23 13:34:57,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:57,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765527477] [2022-07-23 13:34:57,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:57,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:57,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:57,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:57,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:57,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-23 13:34:57,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:57,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765527477] [2022-07-23 13:34:57,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765527477] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:57,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:57,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-23 13:34:57,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938818506] [2022-07-23 13:34:57,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:57,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-23 13:34:57,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:57,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 13:34:57,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 13:34:57,999 INFO L87 Difference]: Start difference. First operand 736 states and 1000 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:58,125 INFO L93 Difference]: Finished difference Result 1121 states and 1511 transitions. [2022-07-23 13:34:58,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 13:34:58,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:34:58,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:58,128 INFO L225 Difference]: With dead ends: 1121 [2022-07-23 13:34:58,128 INFO L226 Difference]: Without dead ends: 866 [2022-07-23 13:34:58,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-23 13:34:58,130 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 148 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:58,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 209 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-23 13:34:58,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2022-07-23 13:34:58,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 766. [2022-07-23 13:34:58,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 701 states have (on average 1.3823109843081312) internal successors, (969), 709 states have internal predecessors, (969), 39 states have call successors, (39), 18 states have call predecessors, (39), 16 states have return successors, (39), 38 states have call predecessors, (39), 32 states have call successors, (39) [2022-07-23 13:34:58,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 1047 transitions. [2022-07-23 13:34:58,184 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 1047 transitions. Word has length 55 [2022-07-23 13:34:58,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:58,185 INFO L495 AbstractCegarLoop]: Abstraction has 766 states and 1047 transitions. [2022-07-23 13:34:58,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:58,185 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 1047 transitions. [2022-07-23 13:34:58,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:34:58,186 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:58,186 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:58,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-07-23 13:34:58,187 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:58,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:58,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1823799633, now seen corresponding path program 1 times [2022-07-23 13:34:58,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:58,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153171871] [2022-07-23 13:34:58,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:58,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:58,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:58,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:34:58,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:58,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153171871] [2022-07-23 13:34:58,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153171871] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:58,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:58,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-23 13:34:58,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335721084] [2022-07-23 13:34:58,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:58,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-23 13:34:58,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:58,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-23 13:34:58,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-07-23 13:34:58,270 INFO L87 Difference]: Start difference. First operand 766 states and 1047 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:59,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:34:59,467 INFO L93 Difference]: Finished difference Result 2285 states and 3286 transitions. [2022-07-23 13:34:59,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 13:34:59,467 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:34:59,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:34:59,472 INFO L225 Difference]: With dead ends: 2285 [2022-07-23 13:34:59,473 INFO L226 Difference]: Without dead ends: 2053 [2022-07-23 13:34:59,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2022-07-23 13:34:59,474 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 496 mSDsluCounter, 453 mSDsCounter, 0 mSdLazyCounter, 2445 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 500 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 2498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-23 13:34:59,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [500 Valid, 798 Invalid, 2498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2445 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-23 13:34:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2053 states. [2022-07-23 13:34:59,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2053 to 951. [2022-07-23 13:34:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 873 states have (on average 1.399770904925544) internal successors, (1222), 882 states have internal predecessors, (1222), 48 states have call successors, (48), 21 states have call predecessors, (48), 20 states have return successors, (52), 47 states have call predecessors, (52), 41 states have call successors, (52) [2022-07-23 13:34:59,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1322 transitions. [2022-07-23 13:34:59,542 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1322 transitions. Word has length 55 [2022-07-23 13:34:59,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:34:59,542 INFO L495 AbstractCegarLoop]: Abstraction has 951 states and 1322 transitions. [2022-07-23 13:34:59,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 9 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:34:59,543 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1322 transitions. [2022-07-23 13:34:59,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-23 13:34:59,544 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:34:59,544 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:34:59,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-07-23 13:34:59,544 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:34:59,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:34:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1823797711, now seen corresponding path program 1 times [2022-07-23 13:34:59,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:34:59,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059265150] [2022-07-23 13:34:59,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:34:59,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:34:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:34:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:34:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:34:59,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:34:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:34:59,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:34:59,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059265150] [2022-07-23 13:34:59,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059265150] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:34:59,618 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:34:59,618 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 13:34:59,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261903036] [2022-07-23 13:34:59,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:34:59,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 13:34:59,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:34:59,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 13:34:59,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-07-23 13:34:59,619 INFO L87 Difference]: Start difference. First operand 951 states and 1322 transitions. Second operand has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:00,412 INFO L93 Difference]: Finished difference Result 2622 states and 3793 transitions. [2022-07-23 13:35:00,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-23 13:35:00,413 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 55 [2022-07-23 13:35:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:00,419 INFO L225 Difference]: With dead ends: 2622 [2022-07-23 13:35:00,419 INFO L226 Difference]: Without dead ends: 2158 [2022-07-23 13:35:00,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=108, Invalid=492, Unknown=0, NotChecked=0, Total=600 [2022-07-23 13:35:00,421 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 912 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 970 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:00,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 545 Invalid, 1035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 970 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-23 13:35:00,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2022-07-23 13:35:00,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1146. [2022-07-23 13:35:00,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1146 states, 1055 states have (on average 1.4075829383886256) internal successors, (1485), 1065 states have internal predecessors, (1485), 57 states have call successors, (57), 24 states have call predecessors, (57), 24 states have return successors, (64), 56 states have call predecessors, (64), 50 states have call successors, (64) [2022-07-23 13:35:00,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1146 states to 1146 states and 1606 transitions. [2022-07-23 13:35:00,501 INFO L78 Accepts]: Start accepts. Automaton has 1146 states and 1606 transitions. Word has length 55 [2022-07-23 13:35:00,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:00,502 INFO L495 AbstractCegarLoop]: Abstraction has 1146 states and 1606 transitions. [2022-07-23 13:35:00,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) internal successors, (34), 8 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:00,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1146 states and 1606 transitions. [2022-07-23 13:35:00,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-23 13:35:00,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:00,503 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:00,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-07-23 13:35:00,504 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:35:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:00,504 INFO L85 PathProgramCache]: Analyzing trace with hash 601890762, now seen corresponding path program 1 times [2022-07-23 13:35:00,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:00,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860084754] [2022-07-23 13:35:00,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:00,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:35:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:35:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:00,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-23 13:35:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:00,613 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:35:00,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:00,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860084754] [2022-07-23 13:35:00,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860084754] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-23 13:35:00,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496647350] [2022-07-23 13:35:00,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:00,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-23 13:35:00,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 13:35:00,616 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-23 13:35:00,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-07-23 13:35:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:00,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-23 13:35:00,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 13:35:00,770 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-23 13:35:00,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-23 13:35:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:35:00,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496647350] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-23 13:35:00,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-23 13:35:00,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 10] total 22 [2022-07-23 13:35:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549827617] [2022-07-23 13:35:00,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-23 13:35:00,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-23 13:35:00,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:00,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-23 13:35:00,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-23 13:35:00,948 INFO L87 Difference]: Start difference. First operand 1146 states and 1606 transitions. Second operand has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:35:01,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:01,912 INFO L93 Difference]: Finished difference Result 1353 states and 1857 transitions. [2022-07-23 13:35:01,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-23 13:35:01,912 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 57 [2022-07-23 13:35:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:01,916 INFO L225 Difference]: With dead ends: 1353 [2022-07-23 13:35:01,916 INFO L226 Difference]: Without dead ends: 1096 [2022-07-23 13:35:01,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=1100, Unknown=0, NotChecked=0, Total=1260 [2022-07-23 13:35:01,917 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 249 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 1926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:01,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 711 Invalid, 1926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-23 13:35:01,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-23 13:35:01,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 959. [2022-07-23 13:35:01,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 883 states have (on average 1.3963759909399773) internal successors, (1233), 893 states have internal predecessors, (1233), 46 states have call successors, (46), 20 states have call predecessors, (46), 20 states have return successors, (51), 45 states have call predecessors, (51), 40 states have call successors, (51) [2022-07-23 13:35:01,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1330 transitions. [2022-07-23 13:35:01,983 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1330 transitions. Word has length 57 [2022-07-23 13:35:01,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:01,983 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1330 transitions. [2022-07-23 13:35:01,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 17 states have internal predecessors, (52), 3 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-07-23 13:35:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1330 transitions. [2022-07-23 13:35:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-07-23 13:35:01,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:01,985 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:02,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-07-23 13:35:02,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-07-23 13:35:02,198 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:35:02,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:02,198 INFO L85 PathProgramCache]: Analyzing trace with hash -796225912, now seen corresponding path program 1 times [2022-07-23 13:35:02,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:02,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841659460] [2022-07-23 13:35:02,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:02,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 13:35:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-23 13:35:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-23 13:35:02,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 13:35:02,314 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 13:35:02,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 13:35:02,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841659460] [2022-07-23 13:35:02,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841659460] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 13:35:02,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 13:35:02,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-23 13:35:02,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391439015] [2022-07-23 13:35:02,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 13:35:02,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-23 13:35:02,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 13:35:02,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-23 13:35:02,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-23 13:35:02,316 INFO L87 Difference]: Start difference. First operand 959 states and 1330 transitions. Second operand has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:02,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 13:35:02,801 INFO L93 Difference]: Finished difference Result 1256 states and 1715 transitions. [2022-07-23 13:35:02,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-23 13:35:02,801 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 57 [2022-07-23 13:35:02,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 13:35:02,804 INFO L225 Difference]: With dead ends: 1256 [2022-07-23 13:35:02,804 INFO L226 Difference]: Without dead ends: 914 [2022-07-23 13:35:02,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=304, Unknown=0, NotChecked=0, Total=380 [2022-07-23 13:35:02,806 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 160 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-23 13:35:02,806 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 561 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-23 13:35:02,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2022-07-23 13:35:02,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 835. [2022-07-23 13:35:02,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 768 states have (on average 1.38671875) internal successors, (1065), 777 states have internal predecessors, (1065), 40 states have call successors, (40), 18 states have call predecessors, (40), 17 states have return successors, (42), 39 states have call predecessors, (42), 34 states have call successors, (42) [2022-07-23 13:35:02,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1147 transitions. [2022-07-23 13:35:02,864 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1147 transitions. Word has length 57 [2022-07-23 13:35:02,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 13:35:02,864 INFO L495 AbstractCegarLoop]: Abstraction has 835 states and 1147 transitions. [2022-07-23 13:35:02,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.0) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-23 13:35:02,865 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1147 transitions. [2022-07-23 13:35:02,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-07-23 13:35:02,866 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 13:35:02,866 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:02,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-07-23 13:35:02,866 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-07-23 13:35:02,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 13:35:02,867 INFO L85 PathProgramCache]: Analyzing trace with hash 650785573, now seen corresponding path program 1 times [2022-07-23 13:35:02,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 13:35:02,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844941874] [2022-07-23 13:35:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 13:35:02,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 13:35:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:35:02,886 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 13:35:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 13:35:02,932 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 13:35:02,932 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-23 13:35:02,933 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location addfltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-07-23 13:35:02,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-07-23 13:35:02,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-07-23 13:35:02,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-07-23 13:35:02,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-07-23 13:35:02,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-07-23 13:35:02,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-07-23 13:35:02,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-07-23 13:35:02,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-07-23 13:35:02,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-07-23 13:35:02,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-07-23 13:35:02,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-07-23 13:35:02,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-07-23 13:35:02,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-07-23 13:35:02,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-07-23 13:35:02,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-07-23 13:35:02,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-07-23 13:35:02,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-07-23 13:35:02,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-07-23 13:35:02,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location addfltErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-07-23 13:35:02,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-07-23 13:35:02,942 INFO L356 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 13:35:02,946 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-23 13:35:02,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:35:02 BoogieIcfgContainer [2022-07-23 13:35:02,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-23 13:35:02,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 13:35:02,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 13:35:02,991 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 13:35:02,992 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:34:20" (3/4) ... [2022-07-23 13:35:02,994 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 13:35:02,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 13:35:02,995 INFO L158 Benchmark]: Toolchain (without parser) took 43472.55ms. Allocated memory was 88.1MB in the beginning and 182.5MB in the end (delta: 94.4MB). Free memory was 48.7MB in the beginning and 118.4MB in the end (delta: -69.7MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-07-23 13:35:02,995 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:35:02,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.96ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 48.5MB in the beginning and 88.8MB in the end (delta: -40.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-07-23 13:35:02,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.60ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 87.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 13:35:02,996 INFO L158 Benchmark]: Boogie Preprocessor took 31.34ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 85.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:35:02,996 INFO L158 Benchmark]: RCFGBuilder took 585.11ms. Allocated memory is still 113.2MB. Free memory was 85.4MB in the beginning and 65.8MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-07-23 13:35:02,996 INFO L158 Benchmark]: TraceAbstraction took 42438.42ms. Allocated memory was 113.2MB in the beginning and 182.5MB in the end (delta: 69.2MB). Free memory was 65.3MB in the beginning and 118.4MB in the end (delta: -53.1MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-07-23 13:35:02,997 INFO L158 Benchmark]: Witness Printer took 3.28ms. Allocated memory is still 182.5MB. Free memory was 118.4MB in the beginning and 118.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 13:35:02,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 88.1MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.96ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 48.5MB in the beginning and 88.8MB in the end (delta: -40.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.60ms. Allocated memory is still 113.2MB. Free memory was 88.8MB in the beginning and 87.4MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.34ms. Allocated memory is still 113.2MB. Free memory was 87.4MB in the beginning and 85.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.11ms. Allocated memory is still 113.2MB. Free memory was 85.4MB in the beginning and 65.8MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 42438.42ms. Allocated memory was 113.2MB in the beginning and 182.5MB in the end (delta: 69.2MB). Free memory was 65.3MB in the beginning and 118.4MB in the end (delta: -53.1MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Witness Printer took 3.28ms. Allocated memory is still 182.5MB. Free memory was 118.4MB in the beginning and 118.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 110]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 77. Possible FailurePath: [L227] unsigned int a ; [L228] unsigned int ma = __VERIFIER_nondet_uint(); [L229] signed char ea = __VERIFIER_nondet_char(); [L230] unsigned int b ; [L231] unsigned int mb = __VERIFIER_nondet_uint(); [L232] signed char eb = __VERIFIER_nondet_char(); [L233] unsigned int r_add1 ; [L234] unsigned int r_add2 ; [L235] unsigned int zero ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int __retres14 ; VAL [ea=-126, eb=-127] [L242] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=0, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L30] COND TRUE ! m [L31] __retres4 = 0U VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L81] return (__retres4); VAL [\old(e)=0, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=0, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, \result=0, __retres4=0, e=0, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L242] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-126, eb=-127, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L242] zero = base2flt(0, 0) [L243] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L30] COND FALSE !(! m) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L36] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L58] COND TRUE 1 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L60] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L77] m = m & ~ (1U << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L78] EXPR e + 128 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L78] EXPR e + 128 VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=36028799149670403] [L78] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706431, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L79] __retres4 = res VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, __retres4=2130706431, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706431, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L81] return (__retres4); VAL [\old(e)=-126, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=36028799149670403, \result=2130706431, __retres4=2130706431, e=-126, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706431, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L243] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=2130706431, ea=-126, eb=-127, m = m & ~ (1U << 24U)=36028799149670402, ma=16777216, res = m | ((unsigned int )(e + 128) << 24U)=33554432, zero=0] [L243] a = base2flt(ma, ea) [L244] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L26] unsigned int res ; [L27] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L30] COND FALSE !(! m) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L36] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L58] COND TRUE 1 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L60] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=16777216, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L77] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L78] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L78] EXPR e + 128 VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res = m | ((unsigned int )(e + 128) << 24U)=33554432] [L78] res = m | ((unsigned int )(e + 128) << 24U) VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706432, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L79] __retres4 = res VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, __retres4=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706432, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L81] return (__retres4); VAL [\old(e)=-127, \old(m = m & ~ (1U << 24U))=36028799149670402, \old(m)=16777216, \old(res = m | ((unsigned int )(e + 128) << 24U))=33554432, \result=36028799149670400, __retres4=2130706432, e=-127, m=0, m = m & ~ (1U << 24U)=36028799149670402, res=2130706432, res = m | ((unsigned int )(e + 128) << 24U)=16777216] [L244] RET, EXPR base2flt(mb, eb) VAL [a=2130706431, base2flt(mb, eb)=36028799149670400, ea=-126, eb=-127, m = m & ~ (1U << 24U)=36028799149670402, ma=16777216, mb=16777216, res = m | ((unsigned int )(e + 128) << 24U)=16777216, zero=0] [L244] b = base2flt(mb, eb) [L245] CALL addflt(a, b) VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405] [L85] unsigned int res ; [L86] unsigned int ma ; [L87] unsigned int mb ; [L88] unsigned int delta ; [L89] int ea ; [L90] int eb ; [L91] unsigned int tmp ; [L92] unsigned int __retres10 ; VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706431, b=2130706432, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405] [L95] COND TRUE a < b [L96] tmp = a [L97] a = b [L98] b = tmp VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] [L102] COND FALSE !(! b) VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma = a & ((1U << 24U) - 1U)=36028799149670404, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] [L109] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] [L110] (int )(a >> 24U) - 128 VAL [\old(a)=2130706431, \old(b)=2130706432, \old(ma = a & ((1U << 24U) - 1U))=36028799149670404, \old(ma = ma & ((1U << 24U) - 1U))=36028799149670407, \old(ma = ma | (1U << 24U))=36028799149670401, \old(mb = b & ((1U << 24U) - 1U))=36028799149670408, \old(mb = mb | (1U << 24U))=36028799149670406, \old(res = ma | ((unsigned int )(ea + 128) << 24U))=36028799149670405, a=2130706432, b=2130706431, m = m & ~ (1U << 24U)=36028799149670402, ma=16777214, ma = a & ((1U << 24U) - 1U)=16777215, ma = ma & ((1U << 24U) - 1U)=36028799149670407, ma = ma | (1U << 24U)=36028799149670401, mb = b & ((1U << 24U) - 1U)=36028799149670408, mb = mb | (1U << 24U)=36028799149670406, res = m | ((unsigned int )(e + 128) << 24U)=16777216, res = ma | ((unsigned int )(ea + 128) << 24U)=36028799149670405, tmp=2130706431] - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 46]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 78]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 110]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 124 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 42.3s, OverallIterations: 33, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 29.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14828 SdHoareTripleChecker+Valid, 22.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14731 mSDsluCounter, 17118 SdHoareTripleChecker+Invalid, 18.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10431 mSDsCounter, 1651 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47935 IncrementalHoareTripleChecker+Invalid, 49586 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1651 mSolverCounterUnsat, 6687 mSDtfsCounter, 47935 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2055 GetRequests, 1470 SyntacticMatches, 15 SemanticMatches, 570 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2926 ImplicationChecksByTransitivity, 6.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1146occurred in iteration=30, InterpolantAutomatonStates: 450, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 32 MinimizatonAttempts, 13216 StatesRemovedByMinimization, 31 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2057 NumberOfCodeBlocks, 2057 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 2469 ConstructedInterpolants, 0 QuantifiedInterpolants, 6645 SizeOfPredicates, 61 NumberOfNonLiveVariables, 3176 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 63 InterpolantComputations, 22 PerfectInterpolantSequences, 809/961 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-23 13:35:03,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample