./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5317dae 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_3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:03:14,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:03:14,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:03:14,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:03:14,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:03:14,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:03:14,668 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:03:14,670 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:03:14,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:03:14,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:03:14,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:03:14,677 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:03:14,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:03:14,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:03:14,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:03:14,678 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:03:14,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:03:14,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:03:14,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:03:14,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:03:14,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:03:14,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:03:14,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:03:14,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:03:14,692 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:03:14,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:03:14,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:03:14,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:03:14,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:03:14,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:03:14,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:03:14,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:03:14,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:03:14,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:03:14,696 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:03:14,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:03:14,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:03:14,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:03:14,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:03:14,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:03:14,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:03:14,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-16 04:03:14,728 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:03:14,728 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:03:14,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:03:14,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:03:14,729 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 04:03:14,729 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 04:03:14,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:03:14,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:03:14,729 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:03:14,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:03:14,729 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:03:14,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 04:03:14,731 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:03:14,731 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 04:03:14,731 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 04:03:14,732 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 04:03:14,732 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 04:03:14,732 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2023-02-16 04:03:14,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:03:14,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:03:14,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:03:14,921 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:03:14,922 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:03:14,923 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2023-02-16 04:03:15,987 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:03:16,125 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:03:16,125 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2023-02-16 04:03:16,130 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e0623fc5/11115b1b0bc14b0cafa01c846cc1731a/FLAG0bd07c717 [2023-02-16 04:03:16,145 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e0623fc5/11115b1b0bc14b0cafa01c846cc1731a [2023-02-16 04:03:16,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:03:16,150 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:03:16,151 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:03:16,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:03:16,154 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:03:16,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,155 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a2cea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16, skipping insertion in model container [2023-02-16 04:03:16,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:03:16,190 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:03:16,300 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2023-02-16 04:03:16,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:03:16,346 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:03:16,354 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2023-02-16 04:03:16,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:03:16,394 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:03:16,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16 WrapperNode [2023-02-16 04:03:16,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:03:16,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:03:16,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:03:16,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:03:16,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,433 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2023-02-16 04:03:16,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:03:16,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:03:16,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:03:16,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:03:16,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:03:16,458 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:03:16,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:03:16,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:03:16,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (1/1) ... [2023-02-16 04:03:16,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:03:16,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:16,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 04:03:16,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 04:03:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 04:03:16,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 04:03:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-16 04:03:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-16 04:03:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:03:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:03:16,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 04:03:16,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 04:03:16,563 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:03:16,564 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:03:16,885 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:03:16,891 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:03:16,891 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 04:03:16,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:03:16 BoogieIcfgContainer [2023-02-16 04:03:16,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:03:16,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 04:03:16,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 04:03:16,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 04:03:16,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:03:16" (1/3) ... [2023-02-16 04:03:16,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6071dbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:03:16, skipping insertion in model container [2023-02-16 04:03:16,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:03:16" (2/3) ... [2023-02-16 04:03:16,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6071dbe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:03:16, skipping insertion in model container [2023-02-16 04:03:16,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:03:16" (3/3) ... [2023-02-16 04:03:16,899 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2023-02-16 04:03:16,910 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 04:03:16,910 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-02-16 04:03:16,943 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 04:03:16,947 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2d461db9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 04:03:16,948 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-02-16 04:03:16,951 INFO L276 IsEmpty]: Start isEmpty. Operand has 109 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 102 states have internal predecessors, (140), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 04:03:16,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:03:16,956 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:16,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:16,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:16,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:16,960 INFO L85 PathProgramCache]: Analyzing trace with hash 186900082, now seen corresponding path program 1 times [2023-02-16 04:03:16,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:16,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928999733] [2023-02-16 04:03:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:16,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:17,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:03:17,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:17,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928999733] [2023-02-16 04:03:17,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928999733] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:17,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:17,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:03:17,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134124207] [2023-02-16 04:03:17,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:17,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:03:17,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:17,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:03:17,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:03:17,189 INFO L87 Difference]: Start difference. First operand has 109 states, 83 states have (on average 1.6867469879518073) internal successors, (140), 102 states have internal predecessors, (140), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2023-02-16 04:03:17,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:17,308 INFO L93 Difference]: Finished difference Result 263 states and 382 transitions. [2023-02-16 04:03:17,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:03:17,310 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 [2023-02-16 04:03:17,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:17,316 INFO L225 Difference]: With dead ends: 263 [2023-02-16 04:03:17,316 INFO L226 Difference]: Without dead ends: 135 [2023-02-16 04:03:17,319 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:03:17,321 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 83 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:17,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 379 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:17,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-02-16 04:03:17,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 125. [2023-02-16 04:03:17,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 103 states have (on average 1.5339805825242718) internal successors, (158), 118 states have internal predecessors, (158), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 166 transitions. [2023-02-16 04:03:17,375 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 166 transitions. Word has length 9 [2023-02-16 04:03:17,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:17,376 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 166 transitions. [2023-02-16 04:03:17,376 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) [2023-02-16 04:03:17,376 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 166 transitions. [2023-02-16 04:03:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-16 04:03:17,378 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:17,378 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:17,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-16 04:03:17,378 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:17,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:17,379 INFO L85 PathProgramCache]: Analyzing trace with hash 207635630, now seen corresponding path program 1 times [2023-02-16 04:03:17,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:17,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023331115] [2023-02-16 04:03:17,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:17,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:17,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:03:17,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:17,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023331115] [2023-02-16 04:03:17,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023331115] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:17,478 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:17,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:03:17,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518221752] [2023-02-16 04:03:17,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:17,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:03:17,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:17,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:03:17,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:03:17,480 INFO L87 Difference]: Start difference. First operand 125 states and 166 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) [2023-02-16 04:03:17,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:17,568 INFO L93 Difference]: Finished difference Result 275 states and 366 transitions. [2023-02-16 04:03:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:17,568 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 [2023-02-16 04:03:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:17,570 INFO L225 Difference]: With dead ends: 275 [2023-02-16 04:03:17,572 INFO L226 Difference]: Without dead ends: 153 [2023-02-16 04:03:17,572 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 [2023-02-16 04:03:17,575 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 128 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:17,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 367 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-02-16 04:03:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 134. [2023-02-16 04:03:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.5178571428571428) internal successors, (170), 127 states have internal predecessors, (170), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:17,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 178 transitions. [2023-02-16 04:03:17,596 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 178 transitions. Word has length 14 [2023-02-16 04:03:17,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:17,597 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 178 transitions. [2023-02-16 04:03:17,597 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) [2023-02-16 04:03:17,598 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 178 transitions. [2023-02-16 04:03:17,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-16 04:03:17,599 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:17,599 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:17,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-16 04:03:17,600 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:17,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:17,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2141737346, now seen corresponding path program 1 times [2023-02-16 04:03:17,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:17,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103445292] [2023-02-16 04:03:17,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:17,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:17,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:03:17,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:17,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103445292] [2023-02-16 04:03:17,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103445292] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:17,658 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:17,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:03:17,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3626661] [2023-02-16 04:03:17,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:17,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:03:17,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:17,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:03:17,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:03:17,659 INFO L87 Difference]: Start difference. First operand 134 states and 178 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, (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) [2023-02-16 04:03:17,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:17,747 INFO L93 Difference]: Finished difference Result 161 states and 207 transitions. [2023-02-16 04:03:17,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:17,747 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, (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 [2023-02-16 04:03:17,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:17,750 INFO L225 Difference]: With dead ends: 161 [2023-02-16 04:03:17,750 INFO L226 Difference]: Without dead ends: 159 [2023-02-16 04:03:17,754 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 [2023-02-16 04:03:17,756 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 112 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:17,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 379 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:17,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-02-16 04:03:17,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 134. [2023-02-16 04:03:17,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 112 states have (on average 1.5) internal successors, (168), 127 states have internal predecessors, (168), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:17,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 176 transitions. [2023-02-16 04:03:17,776 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 176 transitions. Word has length 15 [2023-02-16 04:03:17,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:17,776 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 176 transitions. [2023-02-16 04:03:17,776 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, (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) [2023-02-16 04:03:17,776 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 176 transitions. [2023-02-16 04:03:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-16 04:03:17,777 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:17,778 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:17,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-16 04:03:17,782 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:17,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:17,785 INFO L85 PathProgramCache]: Analyzing trace with hash -966415747, now seen corresponding path program 1 times [2023-02-16 04:03:17,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:17,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473553227] [2023-02-16 04:03:17,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:17,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:17,815 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 04:03:17,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:17,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473553227] [2023-02-16 04:03:17,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473553227] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:17,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:17,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:03:17,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169494381] [2023-02-16 04:03:17,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:17,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-16 04:03:17,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:17,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:03:17,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:03:17,817 INFO L87 Difference]: Start difference. First operand 134 states and 176 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, (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) [2023-02-16 04:03:17,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:17,836 INFO L93 Difference]: Finished difference Result 142 states and 186 transitions. [2023-02-16 04:03:17,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:03:17,836 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, (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 16 [2023-02-16 04:03:17,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:17,837 INFO L225 Difference]: With dead ends: 142 [2023-02-16 04:03:17,837 INFO L226 Difference]: Without dead ends: 141 [2023-02-16 04:03:17,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:03:17,838 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 4 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:17,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 200 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:17,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-02-16 04:03:17,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 131. [2023-02-16 04:03:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 110 states have (on average 1.490909090909091) internal successors, (164), 124 states have internal predecessors, (164), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:17,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 172 transitions. [2023-02-16 04:03:17,844 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 172 transitions. Word has length 16 [2023-02-16 04:03:17,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:17,844 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 172 transitions. [2023-02-16 04:03:17,844 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, (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) [2023-02-16 04:03:17,845 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 172 transitions. [2023-02-16 04:03:17,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-16 04:03:17,845 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:17,845 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:17,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-16 04:03:17,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:17,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:17,846 INFO L85 PathProgramCache]: Analyzing trace with hash 108044843, now seen corresponding path program 1 times [2023-02-16 04:03:17,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:17,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821534056] [2023-02-16 04:03:17,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:17,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:17,893 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:03:17,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:17,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821534056] [2023-02-16 04:03:17,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821534056] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:17,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496236452] [2023-02-16 04:03:17,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:17,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:17,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:17,897 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:17,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 04:03:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:17,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:03:17,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:03:17,979 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:03:17,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [496236452] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:17,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:03:17,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-02-16 04:03:17,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304490244] [2023-02-16 04:03:17,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:17,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:03:17,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:17,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:03:17,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-16 04:03:17,983 INFO L87 Difference]: Start difference. First operand 131 states and 172 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-02-16 04:03:18,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:18,026 INFO L93 Difference]: Finished difference Result 160 states and 213 transitions. [2023-02-16 04:03:18,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:03:18,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 17 [2023-02-16 04:03:18,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:18,029 INFO L225 Difference]: With dead ends: 160 [2023-02-16 04:03:18,029 INFO L226 Difference]: Without dead ends: 159 [2023-02-16 04:03:18,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-16 04:03:18,035 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 16 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:18,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 317 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:18,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-02-16 04:03:18,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 133. [2023-02-16 04:03:18,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 112 states have (on average 1.4910714285714286) internal successors, (167), 126 states have internal predecessors, (167), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:18,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 175 transitions. [2023-02-16 04:03:18,053 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 175 transitions. Word has length 17 [2023-02-16 04:03:18,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:18,054 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 175 transitions. [2023-02-16 04:03:18,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-02-16 04:03:18,054 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 175 transitions. [2023-02-16 04:03:18,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-16 04:03:18,055 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:18,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:18,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:18,255 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 [2023-02-16 04:03:18,256 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:18,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:18,256 INFO L85 PathProgramCache]: Analyzing trace with hash -406903932, now seen corresponding path program 1 times [2023-02-16 04:03:18,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:18,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269375748] [2023-02-16 04:03:18,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:18,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 04:03:18,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:18,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269375748] [2023-02-16 04:03:18,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269375748] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:18,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:18,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:03:18,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890906607] [2023-02-16 04:03:18,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:18,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:03:18,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:18,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:03:18,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:03:18,298 INFO L87 Difference]: Start difference. First operand 133 states and 175 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) [2023-02-16 04:03:18,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:18,327 INFO L93 Difference]: Finished difference Result 166 states and 221 transitions. [2023-02-16 04:03:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:03:18,328 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 [2023-02-16 04:03:18,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:18,328 INFO L225 Difference]: With dead ends: 166 [2023-02-16 04:03:18,328 INFO L226 Difference]: Without dead ends: 164 [2023-02-16 04:03:18,329 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 [2023-02-16 04:03:18,329 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 18 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:18,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 301 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:18,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-02-16 04:03:18,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 135. [2023-02-16 04:03:18,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 115 states have (on average 1.4695652173913043) internal successors, (169), 128 states have internal predecessors, (169), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:18,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 177 transitions. [2023-02-16 04:03:18,336 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 177 transitions. Word has length 19 [2023-02-16 04:03:18,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:18,336 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 177 transitions. [2023-02-16 04:03:18,337 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) [2023-02-16 04:03:18,337 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 177 transitions. [2023-02-16 04:03:18,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 04:03:18,341 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:18,341 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:18,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-16 04:03:18,341 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:18,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:18,342 INFO L85 PathProgramCache]: Analyzing trace with hash 906124417, now seen corresponding path program 1 times [2023-02-16 04:03:18,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:18,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216483879] [2023-02-16 04:03:18,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:18,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,415 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-16 04:03:18,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:18,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216483879] [2023-02-16 04:03:18,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216483879] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:18,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:18,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:03:18,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089659639] [2023-02-16 04:03:18,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:18,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:03:18,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:18,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:03:18,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:03:18,419 INFO L87 Difference]: Start difference. First operand 135 states and 177 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, (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) [2023-02-16 04:03:18,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:18,470 INFO L93 Difference]: Finished difference Result 198 states and 263 transitions. [2023-02-16 04:03:18,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:18,471 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, (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 24 [2023-02-16 04:03:18,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:18,472 INFO L225 Difference]: With dead ends: 198 [2023-02-16 04:03:18,472 INFO L226 Difference]: Without dead ends: 196 [2023-02-16 04:03:18,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:03:18,473 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 136 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:18,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 295 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:18,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-02-16 04:03:18,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 166. [2023-02-16 04:03:18,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 145 states have (on average 1.4758620689655173) internal successors, (214), 158 states have internal predecessors, (214), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 222 transitions. [2023-02-16 04:03:18,479 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 222 transitions. Word has length 24 [2023-02-16 04:03:18,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:18,480 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 222 transitions. [2023-02-16 04:03:18,480 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, (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) [2023-02-16 04:03:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 222 transitions. [2023-02-16 04:03:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-16 04:03:18,481 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:18,481 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:18,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-16 04:03:18,481 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:18,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash 877497061, now seen corresponding path program 1 times [2023-02-16 04:03:18,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:18,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051346755] [2023-02-16 04:03:18,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:18,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,517 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-16 04:03:18,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:18,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051346755] [2023-02-16 04:03:18,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051346755] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:18,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:18,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:03:18,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140348571] [2023-02-16 04:03:18,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:18,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:03:18,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:18,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:03:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:03:18,519 INFO L87 Difference]: Start difference. First operand 166 states and 222 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, (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) [2023-02-16 04:03:18,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:18,575 INFO L93 Difference]: Finished difference Result 190 states and 251 transitions. [2023-02-16 04:03:18,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:18,575 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, (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 24 [2023-02-16 04:03:18,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:18,576 INFO L225 Difference]: With dead ends: 190 [2023-02-16 04:03:18,576 INFO L226 Difference]: Without dead ends: 188 [2023-02-16 04:03:18,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:03:18,577 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 137 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:18,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 295 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:18,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-02-16 04:03:18,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 159. [2023-02-16 04:03:18,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 138 states have (on average 1.463768115942029) internal successors, (202), 151 states have internal predecessors, (202), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:18,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 210 transitions. [2023-02-16 04:03:18,585 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 210 transitions. Word has length 24 [2023-02-16 04:03:18,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:18,587 INFO L495 AbstractCegarLoop]: Abstraction has 159 states and 210 transitions. [2023-02-16 04:03:18,587 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, (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) [2023-02-16 04:03:18,587 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 210 transitions. [2023-02-16 04:03:18,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-16 04:03:18,587 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:18,588 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:18,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-16 04:03:18,588 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:18,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash -339740318, now seen corresponding path program 1 times [2023-02-16 04:03:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:18,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675152178] [2023-02-16 04:03:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:18,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:18,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-16 04:03:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,662 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-16 04:03:18,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:18,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675152178] [2023-02-16 04:03:18,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675152178] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:18,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:18,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:03:18,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764596525] [2023-02-16 04:03:18,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:18,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:03:18,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:18,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:03:18,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:03:18,664 INFO L87 Difference]: Start difference. First operand 159 states and 210 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, (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) [2023-02-16 04:03:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:18,718 INFO L93 Difference]: Finished difference Result 183 states and 242 transitions. [2023-02-16 04:03:18,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:18,718 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, (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 31 [2023-02-16 04:03:18,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:18,719 INFO L225 Difference]: With dead ends: 183 [2023-02-16 04:03:18,719 INFO L226 Difference]: Without dead ends: 181 [2023-02-16 04:03:18,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:03:18,722 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 134 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:18,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 288 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-02-16 04:03:18,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 153. [2023-02-16 04:03:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 134 states have (on average 1.4402985074626866) internal successors, (193), 145 states have internal predecessors, (193), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:18,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 201 transitions. [2023-02-16 04:03:18,729 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 201 transitions. Word has length 31 [2023-02-16 04:03:18,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:18,730 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 201 transitions. [2023-02-16 04:03:18,730 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, (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) [2023-02-16 04:03:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 201 transitions. [2023-02-16 04:03:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-16 04:03:18,732 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:18,732 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:18,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-16 04:03:18,732 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash -368367674, now seen corresponding path program 1 times [2023-02-16 04:03:18,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:18,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013735109] [2023-02-16 04:03:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:18,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:18,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-16 04:03:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-16 04:03:18,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:18,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013735109] [2023-02-16 04:03:18,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013735109] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:18,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:18,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:03:18,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806466396] [2023-02-16 04:03:18,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:18,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:03:18,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:03:18,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:03:18,794 INFO L87 Difference]: Start difference. First operand 153 states and 201 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, (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) [2023-02-16 04:03:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:18,844 INFO L93 Difference]: Finished difference Result 175 states and 230 transitions. [2023-02-16 04:03:18,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:18,845 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, (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 31 [2023-02-16 04:03:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:18,846 INFO L225 Difference]: With dead ends: 175 [2023-02-16 04:03:18,846 INFO L226 Difference]: Without dead ends: 173 [2023-02-16 04:03:18,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:03:18,846 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 135 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:18,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 286 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:18,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-02-16 04:03:18,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 144. [2023-02-16 04:03:18,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.4251968503937007) internal successors, (181), 136 states have internal predecessors, (181), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:18,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 189 transitions. [2023-02-16 04:03:18,852 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 189 transitions. Word has length 31 [2023-02-16 04:03:18,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:18,852 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 189 transitions. [2023-02-16 04:03:18,852 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, (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) [2023-02-16 04:03:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 189 transitions. [2023-02-16 04:03:18,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-16 04:03:18,853 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:18,853 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:18,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-16 04:03:18,853 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1493195762, now seen corresponding path program 1 times [2023-02-16 04:03:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:18,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467347997] [2023-02-16 04:03:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:18,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:18,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-16 04:03:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 04:03:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,917 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-16 04:03:18,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:18,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467347997] [2023-02-16 04:03:18,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467347997] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:18,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770989587] [2023-02-16 04:03:18,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:18,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:18,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:18,920 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:18,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 04:03:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:18,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 20 conjunts are in the unsatisfiable core [2023-02-16 04:03:18,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:19,045 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 04:03:19,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:19,131 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:19,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770989587] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:19,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:03:19,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 8] total 14 [2023-02-16 04:03:19,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808308725] [2023-02-16 04:03:19,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:19,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:03:19,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:19,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:03:19,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-02-16 04:03:19,132 INFO L87 Difference]: Start difference. First operand 144 states and 189 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:19,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:19,179 INFO L93 Difference]: Finished difference Result 232 states and 290 transitions. [2023-02-16 04:03:19,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:19,180 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2023-02-16 04:03:19,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:19,182 INFO L225 Difference]: With dead ends: 232 [2023-02-16 04:03:19,182 INFO L226 Difference]: Without dead ends: 182 [2023-02-16 04:03:19,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2023-02-16 04:03:19,182 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 37 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:19,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 459 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:19,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-02-16 04:03:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 144. [2023-02-16 04:03:19,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.4094488188976377) internal successors, (179), 136 states have internal predecessors, (179), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2023-02-16 04:03:19,189 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 35 [2023-02-16 04:03:19,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:19,189 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2023-02-16 04:03:19,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:19,190 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2023-02-16 04:03:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-16 04:03:19,190 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:19,191 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:19,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-16 04:03:19,395 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,SelfDestructingSolverStorable10 [2023-02-16 04:03:19,395 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:19,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:19,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1303876285, now seen corresponding path program 1 times [2023-02-16 04:03:19,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:19,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539198077] [2023-02-16 04:03:19,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:19,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:19,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-16 04:03:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 04:03:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-16 04:03:19,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:19,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539198077] [2023-02-16 04:03:19,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539198077] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:19,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297727920] [2023-02-16 04:03:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:19,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:19,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:19,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:19,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 04:03:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:03:19,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-16 04:03:19,542 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:19,589 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-02-16 04:03:19,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297727920] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:19,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:03:19,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 6] total 10 [2023-02-16 04:03:19,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696066344] [2023-02-16 04:03:19,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:19,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:03:19,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:19,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:03:19,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-16 04:03:19,591 INFO L87 Difference]: Start difference. First operand 144 states and 187 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:19,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:19,604 INFO L93 Difference]: Finished difference Result 186 states and 235 transitions. [2023-02-16 04:03:19,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:03:19,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2023-02-16 04:03:19,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:19,605 INFO L225 Difference]: With dead ends: 186 [2023-02-16 04:03:19,605 INFO L226 Difference]: Without dead ends: 145 [2023-02-16 04:03:19,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-02-16 04:03:19,606 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 50 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:19,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 186 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:19,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2023-02-16 04:03:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 144. [2023-02-16 04:03:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 127 states have (on average 1.4015748031496063) internal successors, (178), 136 states have internal predecessors, (178), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:19,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2023-02-16 04:03:19,612 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 39 [2023-02-16 04:03:19,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:19,613 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2023-02-16 04:03:19,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:19,613 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2023-02-16 04:03:19,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-16 04:03:19,613 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:19,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:19,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:19,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:19,818 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:19,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:19,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1765516932, now seen corresponding path program 1 times [2023-02-16 04:03:19,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:19,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763500080] [2023-02-16 04:03:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:19,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-16 04:03:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 04:03:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,891 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:19,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:19,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763500080] [2023-02-16 04:03:19,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763500080] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:19,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799046721] [2023-02-16 04:03:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:19,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:19,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:19,892 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:19,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 04:03:19,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:19,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-16 04:03:19,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:19,963 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:20,001 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:20,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799046721] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:20,001 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:20,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2023-02-16 04:03:20,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733209272] [2023-02-16 04:03:20,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:20,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-16 04:03:20,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:20,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-16 04:03:20,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-16 04:03:20,004 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:20,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:20,048 INFO L93 Difference]: Finished difference Result 242 states and 301 transitions. [2023-02-16 04:03:20,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 04:03:20,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-02-16 04:03:20,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:20,049 INFO L225 Difference]: With dead ends: 242 [2023-02-16 04:03:20,049 INFO L226 Difference]: Without dead ends: 198 [2023-02-16 04:03:20,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 83 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-02-16 04:03:20,049 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 57 mSDsluCounter, 465 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:20,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 561 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:20,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2023-02-16 04:03:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 151. [2023-02-16 04:03:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 141 states have internal predecessors, (183), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (6), 6 states have call predecessors, (6), 5 states have call successors, (6) [2023-02-16 04:03:20,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 194 transitions. [2023-02-16 04:03:20,058 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 194 transitions. Word has length 40 [2023-02-16 04:03:20,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:20,058 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 194 transitions. [2023-02-16 04:03:20,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:20,058 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 194 transitions. [2023-02-16 04:03:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-02-16 04:03:20,059 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:20,059 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:20,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-16 04:03:20,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:20,264 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:20,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:20,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1708258630, now seen corresponding path program 1 times [2023-02-16 04:03:20,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:20,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095056732] [2023-02-16 04:03:20,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:20,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:20,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:20,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-16 04:03:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:20,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-16 04:03:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-16 04:03:20,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:20,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095056732] [2023-02-16 04:03:20,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095056732] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:20,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131581845] [2023-02-16 04:03:20,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:20,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:20,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:20,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:20,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 04:03:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:20,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-16 04:03:20,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:20,452 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-16 04:03:20,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:20,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131581845] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:20,545 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:20,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2023-02-16 04:03:20,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330556525] [2023-02-16 04:03:20,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:20,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-16 04:03:20,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:20,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-16 04:03:20,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-02-16 04:03:20,548 INFO L87 Difference]: Start difference. First operand 151 states and 194 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-16 04:03:20,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:20,816 INFO L93 Difference]: Finished difference Result 413 states and 528 transitions. [2023-02-16 04:03:20,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-02-16 04:03:20,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 40 [2023-02-16 04:03:20,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:20,818 INFO L225 Difference]: With dead ends: 413 [2023-02-16 04:03:20,818 INFO L226 Difference]: Without dead ends: 227 [2023-02-16 04:03:20,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=588, Unknown=0, NotChecked=0, Total=702 [2023-02-16 04:03:20,819 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 97 mSDsluCounter, 1101 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:20,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1183 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:03:20,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-02-16 04:03:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 143. [2023-02-16 04:03:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 125 states have (on average 1.36) internal successors, (170), 134 states have internal predecessors, (170), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:20,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 178 transitions. [2023-02-16 04:03:20,828 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 178 transitions. Word has length 40 [2023-02-16 04:03:20,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:20,829 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 178 transitions. [2023-02-16 04:03:20,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-16 04:03:20,829 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 178 transitions. [2023-02-16 04:03:20,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-16 04:03:20,829 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:20,829 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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] [2023-02-16 04:03:20,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:21,034 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,SelfDestructingSolverStorable13 [2023-02-16 04:03:21,034 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:21,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:21,034 INFO L85 PathProgramCache]: Analyzing trace with hash 2065115993, now seen corresponding path program 1 times [2023-02-16 04:03:21,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:21,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469239963] [2023-02-16 04:03:21,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:21,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:21,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-16 04:03:21,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-16 04:03:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,133 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:21,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:21,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469239963] [2023-02-16 04:03:21,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469239963] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:21,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201782788] [2023-02-16 04:03:21,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:21,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:21,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:21,134 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:21,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 04:03:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 04:03:21,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-16 04:03:21,214 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:03:21,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201782788] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:21,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:03:21,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2023-02-16 04:03:21,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740349996] [2023-02-16 04:03:21,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:21,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:03:21,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:21,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:03:21,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-16 04:03:21,216 INFO L87 Difference]: Start difference. First operand 143 states and 178 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:21,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:21,295 INFO L93 Difference]: Finished difference Result 311 states and 388 transitions. [2023-02-16 04:03:21,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:03:21,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2023-02-16 04:03:21,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:21,297 INFO L225 Difference]: With dead ends: 311 [2023-02-16 04:03:21,297 INFO L226 Difference]: Without dead ends: 200 [2023-02-16 04:03:21,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-02-16 04:03:21,298 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 29 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:21,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 325 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2023-02-16 04:03:21,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 136. [2023-02-16 04:03:21,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 118 states have (on average 1.347457627118644) internal successors, (159), 127 states have internal predecessors, (159), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 167 transitions. [2023-02-16 04:03:21,305 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 167 transitions. Word has length 56 [2023-02-16 04:03:21,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:21,305 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 167 transitions. [2023-02-16 04:03:21,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:21,306 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 167 transitions. [2023-02-16 04:03:21,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-02-16 04:03:21,306 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:21,306 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2023-02-16 04:03:21,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-16 04:03:21,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-02-16 04:03:21,512 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:21,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:21,512 INFO L85 PathProgramCache]: Analyzing trace with hash -699283725, now seen corresponding path program 1 times [2023-02-16 04:03:21,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:21,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456323678] [2023-02-16 04:03:21,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:21,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:21,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-02-16 04:03:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-02-16 04:03:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,601 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:21,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:21,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456323678] [2023-02-16 04:03:21,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456323678] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:21,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318792160] [2023-02-16 04:03:21,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:21,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:21,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:21,602 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:21,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-16 04:03:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:21,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:03:21,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:21,695 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-16 04:03:21,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:21,800 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:21,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318792160] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:21,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:21,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-02-16 04:03:21,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141547695] [2023-02-16 04:03:21,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:21,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-16 04:03:21,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:21,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-16 04:03:21,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-02-16 04:03:21,802 INFO L87 Difference]: Start difference. First operand 136 states and 167 transitions. Second operand has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 04:03:21,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:21,998 INFO L93 Difference]: Finished difference Result 572 states and 721 transitions. [2023-02-16 04:03:21,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-16 04:03:21,998 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-02-16 04:03:21,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:21,999 INFO L225 Difference]: With dead ends: 572 [2023-02-16 04:03:21,999 INFO L226 Difference]: Without dead ends: 464 [2023-02-16 04:03:22,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2023-02-16 04:03:22,000 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 275 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:22,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 426 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:22,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-02-16 04:03:22,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 163. [2023-02-16 04:03:22,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 145 states have (on average 1.3310344827586207) internal successors, (193), 154 states have internal predecessors, (193), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:22,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 201 transitions. [2023-02-16 04:03:22,024 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 201 transitions. Word has length 57 [2023-02-16 04:03:22,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:22,024 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 201 transitions. [2023-02-16 04:03:22,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.714285714285714) internal successors, (80), 14 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 04:03:22,024 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 201 transitions. [2023-02-16 04:03:22,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-02-16 04:03:22,024 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:22,024 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 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, 1, 1, 1, 1] [2023-02-16 04:03:22,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:22,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:22,232 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1499167963, now seen corresponding path program 1 times [2023-02-16 04:03:22,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:22,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940531199] [2023-02-16 04:03:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:22,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:22,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:22,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:22,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:22,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:22,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-02-16 04:03:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:22,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-16 04:03:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:22,329 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:22,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:22,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940531199] [2023-02-16 04:03:22,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940531199] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:22,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391479668] [2023-02-16 04:03:22,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:22,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:22,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:22,347 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:22,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-16 04:03:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:22,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:03:22,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 26 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-16 04:03:22,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:22,545 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:22,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391479668] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:22,546 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:22,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-02-16 04:03:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659605252] [2023-02-16 04:03:22,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:22,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-16 04:03:22,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:22,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-16 04:03:22,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-16 04:03:22,549 INFO L87 Difference]: Start difference. First operand 163 states and 201 transitions. Second operand has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-16 04:03:22,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:22,846 INFO L93 Difference]: Finished difference Result 403 states and 506 transitions. [2023-02-16 04:03:22,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-16 04:03:22,847 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2023-02-16 04:03:22,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:22,848 INFO L225 Difference]: With dead ends: 403 [2023-02-16 04:03:22,848 INFO L226 Difference]: Without dead ends: 281 [2023-02-16 04:03:22,849 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2023-02-16 04:03:22,849 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 125 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:22,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 513 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:03:22,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-02-16 04:03:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 156. [2023-02-16 04:03:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 138 states have (on average 1.2971014492753623) internal successors, (179), 147 states have internal predecessors, (179), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:03:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 187 transitions. [2023-02-16 04:03:22,862 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 187 transitions. Word has length 61 [2023-02-16 04:03:22,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:22,862 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 187 transitions. [2023-02-16 04:03:22,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.461538461538462) internal successors, (84), 13 states have internal predecessors, (84), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-16 04:03:22,863 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 187 transitions. [2023-02-16 04:03:22,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-02-16 04:03:22,863 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:22,864 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 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] [2023-02-16 04:03:22,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:23,067 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,SelfDestructingSolverStorable16 [2023-02-16 04:03:23,067 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:23,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:23,067 INFO L85 PathProgramCache]: Analyzing trace with hash 239667187, now seen corresponding path program 2 times [2023-02-16 04:03:23,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:23,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497481126] [2023-02-16 04:03:23,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:23,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:23,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-16 04:03:23,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-02-16 04:03:23,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:23,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:23,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497481126] [2023-02-16 04:03:23,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497481126] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:23,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337592981] [2023-02-16 04:03:23,212 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:03:23,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:23,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:23,213 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:23,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-16 04:03:23,251 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-16 04:03:23,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:03:23,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-16 04:03:23,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:23,311 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-02-16 04:03:23,311 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:03:23,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337592981] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:23,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:03:23,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2023-02-16 04:03:23,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409862960] [2023-02-16 04:03:23,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:23,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 04:03:23,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:23,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 04:03:23,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-02-16 04:03:23,312 INFO L87 Difference]: Start difference. First operand 156 states and 187 transitions. Second operand has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:23,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:23,393 INFO L93 Difference]: Finished difference Result 294 states and 349 transitions. [2023-02-16 04:03:23,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 04:03:23,397 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 77 [2023-02-16 04:03:23,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:23,398 INFO L225 Difference]: With dead ends: 294 [2023-02-16 04:03:23,398 INFO L226 Difference]: Without dead ends: 251 [2023-02-16 04:03:23,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-02-16 04:03:23,398 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 94 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:23,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 742 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:23,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2023-02-16 04:03:23,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 177. [2023-02-16 04:03:23,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 158 states have (on average 1.2721518987341771) internal successors, (201), 167 states have internal predecessors, (201), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-16 04:03:23,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 210 transitions. [2023-02-16 04:03:23,407 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 210 transitions. Word has length 77 [2023-02-16 04:03:23,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:23,408 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 210 transitions. [2023-02-16 04:03:23,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:23,408 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 210 transitions. [2023-02-16 04:03:23,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-02-16 04:03:23,408 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:23,408 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 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] [2023-02-16 04:03:23,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-16 04:03:23,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-16 04:03:23,609 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:23,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:23,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2114891252, now seen corresponding path program 1 times [2023-02-16 04:03:23,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:23,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34667223] [2023-02-16 04:03:23,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:23,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:23,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:23,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-16 04:03:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-02-16 04:03:23,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,744 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:23,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:23,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34667223] [2023-02-16 04:03:23,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34667223] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:23,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083922250] [2023-02-16 04:03:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:23,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:23,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:23,745 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:23,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-16 04:03:23,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:23,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:03:23,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 04:03:23,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:24,097 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:24,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083922250] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:24,098 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:24,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-02-16 04:03:24,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90924216] [2023-02-16 04:03:24,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:24,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-16 04:03:24,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:24,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-16 04:03:24,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2023-02-16 04:03:24,099 INFO L87 Difference]: Start difference. First operand 177 states and 210 transitions. Second operand has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 04:03:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:24,479 INFO L93 Difference]: Finished difference Result 986 states and 1243 transitions. [2023-02-16 04:03:24,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-16 04:03:24,480 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2023-02-16 04:03:24,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:24,482 INFO L225 Difference]: With dead ends: 986 [2023-02-16 04:03:24,483 INFO L226 Difference]: Without dead ends: 857 [2023-02-16 04:03:24,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2023-02-16 04:03:24,483 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 536 mSDsluCounter, 950 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:24,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1047 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:03:24,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2023-02-16 04:03:24,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 224. [2023-02-16 04:03:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 205 states have (on average 1.2634146341463415) internal successors, (259), 214 states have internal predecessors, (259), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-16 04:03:24,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 268 transitions. [2023-02-16 04:03:24,501 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 268 transitions. Word has length 82 [2023-02-16 04:03:24,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:24,501 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 268 transitions. [2023-02-16 04:03:24,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 5.923076923076923) internal successors, (154), 26 states have internal predecessors, (154), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 04:03:24,501 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 268 transitions. [2023-02-16 04:03:24,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-16 04:03:24,503 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:24,504 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 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] [2023-02-16 04:03:24,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:24,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:24,709 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:24,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:24,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1818476286, now seen corresponding path program 1 times [2023-02-16 04:03:24,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:24,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646614512] [2023-02-16 04:03:24,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:24,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:24,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:24,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:24,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:24,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:24,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-16 04:03:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:24,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-16 04:03:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:24,935 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:24,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:24,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646614512] [2023-02-16 04:03:24,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646614512] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:24,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078899443] [2023-02-16 04:03:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:24,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:24,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:24,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:24,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-16 04:03:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:25,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 04:03:25,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 32 proven. 75 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 04:03:25,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:25,357 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:25,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078899443] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:25,357 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:25,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 25 [2023-02-16 04:03:25,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081411329] [2023-02-16 04:03:25,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:25,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-16 04:03:25,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:25,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-16 04:03:25,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=409, Unknown=0, NotChecked=0, Total=600 [2023-02-16 04:03:25,359 INFO L87 Difference]: Start difference. First operand 224 states and 268 transitions. Second operand has 25 states, 25 states have (on average 6.32) internal successors, (158), 25 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-16 04:03:31,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:31,885 INFO L93 Difference]: Finished difference Result 589 states and 732 transitions. [2023-02-16 04:03:31,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-16 04:03:31,885 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 6.32) internal successors, (158), 25 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 86 [2023-02-16 04:03:31,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:31,887 INFO L225 Difference]: With dead ends: 589 [2023-02-16 04:03:31,887 INFO L226 Difference]: Without dead ends: 446 [2023-02-16 04:03:31,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=504, Invalid=902, Unknown=0, NotChecked=0, Total=1406 [2023-02-16 04:03:31,888 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 201 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:31,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 993 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-16 04:03:31,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-02-16 04:03:31,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 217. [2023-02-16 04:03:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 198 states have (on average 1.2171717171717171) internal successors, (241), 207 states have internal predecessors, (241), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-16 04:03:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 250 transitions. [2023-02-16 04:03:31,904 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 250 transitions. Word has length 86 [2023-02-16 04:03:31,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:31,904 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 250 transitions. [2023-02-16 04:03:31,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.32) internal successors, (158), 25 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-16 04:03:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 250 transitions. [2023-02-16 04:03:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-02-16 04:03:31,905 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:31,905 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 4, 4, 4, 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] [2023-02-16 04:03:31,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:32,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:32,111 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:32,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:32,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1334776844, now seen corresponding path program 2 times [2023-02-16 04:03:32,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:32,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007641807] [2023-02-16 04:03:32,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:32,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:32,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-02-16 04:03:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:32,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-02-16 04:03:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:32,447 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:32,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:32,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007641807] [2023-02-16 04:03:32,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007641807] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:32,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429791932] [2023-02-16 04:03:32,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:03:32,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:32,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:32,449 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:32,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-16 04:03:32,523 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:03:32,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:03:32,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 04:03:32,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 04:03:32,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:33,301 INFO L134 CoverageAnalysis]: Checked inductivity of 518 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:33,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429791932] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:33,301 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:33,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2023-02-16 04:03:33,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109697413] [2023-02-16 04:03:33,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:33,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-16 04:03:33,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:33,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-16 04:03:33,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2023-02-16 04:03:33,317 INFO L87 Difference]: Start difference. First operand 217 states and 250 transitions. Second operand has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 04:03:34,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:34,148 INFO L93 Difference]: Finished difference Result 1730 states and 2195 transitions. [2023-02-16 04:03:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-02-16 04:03:34,149 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 122 [2023-02-16 04:03:34,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:34,153 INFO L225 Difference]: With dead ends: 1730 [2023-02-16 04:03:34,153 INFO L226 Difference]: Without dead ends: 1601 [2023-02-16 04:03:34,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2023-02-16 04:03:34,155 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 1351 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1351 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:34,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1351 Valid, 1135 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 04:03:34,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2023-02-16 04:03:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 304. [2023-02-16 04:03:34,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 285 states have (on average 1.2175438596491228) internal successors, (347), 294 states have internal predecessors, (347), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-16 04:03:34,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 356 transitions. [2023-02-16 04:03:34,180 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 356 transitions. Word has length 122 [2023-02-16 04:03:34,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:34,180 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 356 transitions. [2023-02-16 04:03:34,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-16 04:03:34,181 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 356 transitions. [2023-02-16 04:03:34,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-02-16 04:03:34,181 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:34,182 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 4, 4, 4, 3, 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] [2023-02-16 04:03:34,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:34,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-02-16 04:03:34,389 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:34,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:34,389 INFO L85 PathProgramCache]: Analyzing trace with hash 783253250, now seen corresponding path program 2 times [2023-02-16 04:03:34,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:34,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680187432] [2023-02-16 04:03:34,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:34,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:34,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:34,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-02-16 04:03:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:34,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-02-16 04:03:34,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:34,798 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 4 proven. 471 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:34,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:34,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680187432] [2023-02-16 04:03:34,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680187432] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:34,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936365337] [2023-02-16 04:03:34,798 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:03:34,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:34,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:34,801 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:34,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-16 04:03:34,871 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:03:34,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:03:34,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-16 04:03:34,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2023-02-16 04:03:34,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:35,204 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2023-02-16 04:03:35,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936365337] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:35,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:35,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 6] total 28 [2023-02-16 04:03:35,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196111325] [2023-02-16 04:03:35,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:35,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-16 04:03:35,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:35,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-16 04:03:35,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2023-02-16 04:03:35,205 INFO L87 Difference]: Start difference. First operand 304 states and 356 transitions. Second operand has 28 states, 28 states have (on average 4.964285714285714) internal successors, (139), 26 states have internal predecessors, (139), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-16 04:03:35,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:35,994 INFO L93 Difference]: Finished difference Result 698 states and 839 transitions. [2023-02-16 04:03:35,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-16 04:03:35,995 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.964285714285714) internal successors, (139), 26 states have internal predecessors, (139), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 126 [2023-02-16 04:03:35,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:35,997 INFO L225 Difference]: With dead ends: 698 [2023-02-16 04:03:35,997 INFO L226 Difference]: Without dead ends: 566 [2023-02-16 04:03:35,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=251, Invalid=1081, Unknown=0, NotChecked=0, Total=1332 [2023-02-16 04:03:35,998 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 381 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 1331 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 2421 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:35,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 2421 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1331 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-16 04:03:35,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-02-16 04:03:36,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 313. [2023-02-16 04:03:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 292 states have (on average 1.2089041095890412) internal successors, (353), 300 states have internal predecessors, (353), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 8 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-16 04:03:36,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 366 transitions. [2023-02-16 04:03:36,019 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 366 transitions. Word has length 126 [2023-02-16 04:03:36,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:36,019 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 366 transitions. [2023-02-16 04:03:36,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.964285714285714) internal successors, (139), 26 states have internal predecessors, (139), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-16 04:03:36,019 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 366 transitions. [2023-02-16 04:03:36,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-02-16 04:03:36,020 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:36,020 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 4, 4, 4, 3, 3, 3, 3, 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] [2023-02-16 04:03:36,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:36,225 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,SelfDestructingSolverStorable21 [2023-02-16 04:03:36,226 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:36,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:36,226 INFO L85 PathProgramCache]: Analyzing trace with hash -303496585, now seen corresponding path program 1 times [2023-02-16 04:03:36,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:36,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044218084] [2023-02-16 04:03:36,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:36,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:36,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:36,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:36,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-02-16 04:03:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:36,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-02-16 04:03:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:36,736 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 4 proven. 547 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-16 04:03:36,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:36,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044218084] [2023-02-16 04:03:36,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044218084] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:36,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704633084] [2023-02-16 04:03:36,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:36,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:36,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:36,741 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:36,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-16 04:03:36,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:36,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-16 04:03:36,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:37,129 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-02-16 04:03:37,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:37,691 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-02-16 04:03:37,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1704633084] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:37,691 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:37,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10, 9] total 36 [2023-02-16 04:03:37,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245886537] [2023-02-16 04:03:37,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:37,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-02-16 04:03:37,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:37,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-02-16 04:03:37,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1151, Unknown=0, NotChecked=0, Total=1260 [2023-02-16 04:03:37,693 INFO L87 Difference]: Start difference. First operand 313 states and 366 transitions. Second operand has 36 states, 36 states have (on average 4.638888888888889) internal successors, (167), 34 states have internal predecessors, (167), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-16 04:03:39,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:39,353 INFO L93 Difference]: Finished difference Result 876 states and 1049 transitions. [2023-02-16 04:03:39,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2023-02-16 04:03:39,354 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.638888888888889) internal successors, (167), 34 states have internal predecessors, (167), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 136 [2023-02-16 04:03:39,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:39,356 INFO L225 Difference]: With dead ends: 876 [2023-02-16 04:03:39,356 INFO L226 Difference]: Without dead ends: 735 [2023-02-16 04:03:39,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=437, Invalid=2755, Unknown=0, NotChecked=0, Total=3192 [2023-02-16 04:03:39,357 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 755 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 1835 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 3272 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:39,358 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 3272 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1835 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-02-16 04:03:39,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-02-16 04:03:39,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 329. [2023-02-16 04:03:39,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 306 states have (on average 1.2124183006535947) internal successors, (371), 314 states have internal predecessors, (371), 6 states have call successors, (6), 4 states have call predecessors, (6), 7 states have return successors, (11), 10 states have call predecessors, (11), 6 states have call successors, (11) [2023-02-16 04:03:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 388 transitions. [2023-02-16 04:03:39,386 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 388 transitions. Word has length 136 [2023-02-16 04:03:39,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:39,387 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 388 transitions. [2023-02-16 04:03:39,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.638888888888889) internal successors, (167), 34 states have internal predecessors, (167), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-16 04:03:39,387 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 388 transitions. [2023-02-16 04:03:39,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-02-16 04:03:39,388 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:39,388 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 3, 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] [2023-02-16 04:03:39,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-02-16 04:03:39,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:39,593 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:39,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:39,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1862848251, now seen corresponding path program 1 times [2023-02-16 04:03:39,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:39,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551707120] [2023-02-16 04:03:39,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:39,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:39,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:40,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-16 04:03:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:40,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-16 04:03:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 4 proven. 622 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-16 04:03:40,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:40,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551707120] [2023-02-16 04:03:40,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551707120] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:40,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430972776] [2023-02-16 04:03:40,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:40,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:40,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:40,085 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:40,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-16 04:03:40,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:40,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-16 04:03:40,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:40,424 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-02-16 04:03:40,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:03:40,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430972776] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:40,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:03:40,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [20] total 29 [2023-02-16 04:03:40,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951729161] [2023-02-16 04:03:40,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:40,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-16 04:03:40,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:40,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 04:03:40,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=724, Unknown=0, NotChecked=0, Total=812 [2023-02-16 04:03:40,426 INFO L87 Difference]: Start difference. First operand 329 states and 388 transitions. Second operand has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:40,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:40,802 INFO L93 Difference]: Finished difference Result 544 states and 643 transitions. [2023-02-16 04:03:40,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 04:03:40,802 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 141 [2023-02-16 04:03:40,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:40,804 INFO L225 Difference]: With dead ends: 544 [2023-02-16 04:03:40,804 INFO L226 Difference]: Without dead ends: 501 [2023-02-16 04:03:40,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=123, Invalid=1137, Unknown=0, NotChecked=0, Total=1260 [2023-02-16 04:03:40,805 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 209 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 1416 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:40,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [211 Valid, 1416 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:03:40,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-02-16 04:03:40,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 362. [2023-02-16 04:03:40,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 338 states have (on average 1.2218934911242603) internal successors, (413), 344 states have internal predecessors, (413), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 04:03:40,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 433 transitions. [2023-02-16 04:03:40,836 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 433 transitions. Word has length 141 [2023-02-16 04:03:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:40,837 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 433 transitions. [2023-02-16 04:03:40,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.6) internal successors, (46), 10 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 433 transitions. [2023-02-16 04:03:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-02-16 04:03:40,838 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:40,838 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 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, 1] [2023-02-16 04:03:40,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:41,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:41,042 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:41,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:41,043 INFO L85 PathProgramCache]: Analyzing trace with hash -8442539, now seen corresponding path program 1 times [2023-02-16 04:03:41,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:41,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104558007] [2023-02-16 04:03:41,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:41,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:41,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:41,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-16 04:03:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:41,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-02-16 04:03:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:41,516 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:41,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:41,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104558007] [2023-02-16 04:03:41,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104558007] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:41,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545430249] [2023-02-16 04:03:41,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:41,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:41,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:41,517 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:41,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-16 04:03:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:41,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-16 04:03:41,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:42,001 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2023-02-16 04:03:42,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:03:42,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545430249] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:42,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:03:42,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 28 [2023-02-16 04:03:42,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822757371] [2023-02-16 04:03:42,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:42,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 04:03:42,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:42,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 04:03:42,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2023-02-16 04:03:42,003 INFO L87 Difference]: Start difference. First operand 362 states and 433 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:42,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:42,177 INFO L93 Difference]: Finished difference Result 460 states and 543 transitions. [2023-02-16 04:03:42,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 04:03:42,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 142 [2023-02-16 04:03:42,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:42,178 INFO L225 Difference]: With dead ends: 460 [2023-02-16 04:03:42,179 INFO L226 Difference]: Without dead ends: 456 [2023-02-16 04:03:42,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=884, Unknown=0, NotChecked=0, Total=992 [2023-02-16 04:03:42,179 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 183 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:42,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 639 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:42,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-02-16 04:03:42,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 395. [2023-02-16 04:03:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 371 states have (on average 1.2237196765498652) internal successors, (454), 377 states have internal predecessors, (454), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 04:03:42,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 474 transitions. [2023-02-16 04:03:42,224 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 474 transitions. Word has length 142 [2023-02-16 04:03:42,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:42,224 INFO L495 AbstractCegarLoop]: Abstraction has 395 states and 474 transitions. [2023-02-16 04:03:42,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 8 states have internal predecessors, (47), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 474 transitions. [2023-02-16 04:03:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-02-16 04:03:42,225 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:42,225 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 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] [2023-02-16 04:03:42,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:42,430 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,SelfDestructingSolverStorable24 [2023-02-16 04:03:42,430 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:42,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:42,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1414285669, now seen corresponding path program 1 times [2023-02-16 04:03:42,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:42,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723698290] [2023-02-16 04:03:42,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:42,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:42,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:42,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:42,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:42,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-16 04:03:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:42,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-16 04:03:42,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:42,507 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2023-02-16 04:03:42,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:42,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723698290] [2023-02-16 04:03:42,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723698290] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:42,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:03:42,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:03:42,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717401901] [2023-02-16 04:03:42,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:42,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:03:42,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:42,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:03:42,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:03:42,509 INFO L87 Difference]: Start difference. First operand 395 states and 474 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:42,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:42,559 INFO L93 Difference]: Finished difference Result 657 states and 806 transitions. [2023-02-16 04:03:42,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:03:42,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 142 [2023-02-16 04:03:42,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:42,561 INFO L225 Difference]: With dead ends: 657 [2023-02-16 04:03:42,561 INFO L226 Difference]: Without dead ends: 439 [2023-02-16 04:03:42,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:03:42,562 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 4 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:42,563 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 283 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:03:42,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-02-16 04:03:42,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 415. [2023-02-16 04:03:42,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 391 states have (on average 1.2122762148337596) internal successors, (474), 397 states have internal predecessors, (474), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 04:03:42,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 494 transitions. [2023-02-16 04:03:42,592 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 494 transitions. Word has length 142 [2023-02-16 04:03:42,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:42,592 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 494 transitions. [2023-02-16 04:03:42,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:03:42,593 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 494 transitions. [2023-02-16 04:03:42,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-02-16 04:03:42,593 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:42,594 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 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, 1, 1] [2023-02-16 04:03:42,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-02-16 04:03:42,595 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:42,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:42,595 INFO L85 PathProgramCache]: Analyzing trace with hash -261718500, now seen corresponding path program 1 times [2023-02-16 04:03:42,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:42,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822448679] [2023-02-16 04:03:42,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:42,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:42,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:42,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:42,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:43,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-16 04:03:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:43,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-02-16 04:03:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:43,144 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 4 proven. 610 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-16 04:03:43,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:43,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822448679] [2023-02-16 04:03:43,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822448679] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:43,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765718958] [2023-02-16 04:03:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:43,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:43,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:43,146 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:43,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-16 04:03:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:43,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-16 04:03:43,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:43,606 INFO L134 CoverageAnalysis]: Checked inductivity of 636 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2023-02-16 04:03:43,606 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:03:43,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765718958] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:03:43,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:03:43,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [20] total 28 [2023-02-16 04:03:43,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627117040] [2023-02-16 04:03:43,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:03:43,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 04:03:43,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:43,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 04:03:43,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2023-02-16 04:03:43,607 INFO L87 Difference]: Start difference. First operand 415 states and 494 transitions. Second operand has 10 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:43,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:43,807 INFO L93 Difference]: Finished difference Result 483 states and 567 transitions. [2023-02-16 04:03:43,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-16 04:03:43,810 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 143 [2023-02-16 04:03:43,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:43,812 INFO L225 Difference]: With dead ends: 483 [2023-02-16 04:03:43,812 INFO L226 Difference]: Without dead ends: 474 [2023-02-16 04:03:43,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=884, Unknown=0, NotChecked=0, Total=992 [2023-02-16 04:03:43,812 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 166 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:43,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 674 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:03:43,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2023-02-16 04:03:43,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 415. [2023-02-16 04:03:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 391 states have (on average 1.2046035805626598) internal successors, (471), 397 states have internal predecessors, (471), 6 states have call successors, (6), 4 states have call predecessors, (6), 8 states have return successors, (14), 13 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-16 04:03:43,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 491 transitions. [2023-02-16 04:03:43,839 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 491 transitions. Word has length 143 [2023-02-16 04:03:43,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:43,839 INFO L495 AbstractCegarLoop]: Abstraction has 415 states and 491 transitions. [2023-02-16 04:03:43,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:03:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 491 transitions. [2023-02-16 04:03:43,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-02-16 04:03:43,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:43,841 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:43,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:44,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-16 04:03:44,046 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:44,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:44,046 INFO L85 PathProgramCache]: Analyzing trace with hash -280681651, now seen corresponding path program 1 times [2023-02-16 04:03:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:44,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660533383] [2023-02-16 04:03:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:44,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:44,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:44,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-16 04:03:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:44,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-16 04:03:44,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:44,249 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2023-02-16 04:03:44,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:44,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660533383] [2023-02-16 04:03:44,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660533383] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:44,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371957206] [2023-02-16 04:03:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:44,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:44,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:44,253 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:44,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-16 04:03:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:44,325 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-16 04:03:44,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:44,429 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2023-02-16 04:03:44,429 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 631 trivial. 0 not checked. [2023-02-16 04:03:44,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371957206] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:44,550 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:44,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2023-02-16 04:03:44,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502951901] [2023-02-16 04:03:44,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:44,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-16 04:03:44,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:44,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-16 04:03:44,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2023-02-16 04:03:44,551 INFO L87 Difference]: Start difference. First operand 415 states and 491 transitions. Second operand has 24 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 21 states have internal predecessors, (89), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-16 04:03:45,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:45,369 INFO L93 Difference]: Finished difference Result 1205 states and 1401 transitions. [2023-02-16 04:03:45,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-02-16 04:03:45,373 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 21 states have internal predecessors, (89), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) Word has length 143 [2023-02-16 04:03:45,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:45,376 INFO L225 Difference]: With dead ends: 1205 [2023-02-16 04:03:45,376 INFO L226 Difference]: Without dead ends: 1155 [2023-02-16 04:03:45,377 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=341, Invalid=2011, Unknown=0, NotChecked=0, Total=2352 [2023-02-16 04:03:45,377 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 1391 mSDsluCounter, 3379 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 3610 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:45,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 3610 Invalid, 1226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-16 04:03:45,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2023-02-16 04:03:45,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 449. [2023-02-16 04:03:45,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 423 states have (on average 1.2056737588652482) internal successors, (510), 427 states have internal predecessors, (510), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 17 states have call predecessors, (18), 7 states have call successors, (18) [2023-02-16 04:03:45,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 535 transitions. [2023-02-16 04:03:45,410 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 535 transitions. Word has length 143 [2023-02-16 04:03:45,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:45,411 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 535 transitions. [2023-02-16 04:03:45,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.7083333333333335) internal successors, (89), 21 states have internal predecessors, (89), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-16 04:03:45,411 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 535 transitions. [2023-02-16 04:03:45,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-02-16 04:03:45,412 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:45,412 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:03:45,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:45,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-16 04:03:45,617 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:45,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:45,617 INFO L85 PathProgramCache]: Analyzing trace with hash -280679729, now seen corresponding path program 1 times [2023-02-16 04:03:45,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:45,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041663397] [2023-02-16 04:03:45,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:45,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:45,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:45,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:45,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:45,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:46,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-16 04:03:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-16 04:03:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:46,062 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 4 proven. 616 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-16 04:03:46,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:46,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041663397] [2023-02-16 04:03:46,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041663397] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:46,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1333873934] [2023-02-16 04:03:46,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:46,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:46,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:46,063 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:46,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-16 04:03:46,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:46,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-16 04:03:46,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2023-02-16 04:03:46,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 619 trivial. 0 not checked. [2023-02-16 04:03:47,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1333873934] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:47,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:47,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 10] total 39 [2023-02-16 04:03:47,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131790171] [2023-02-16 04:03:47,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:47,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-02-16 04:03:47,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:47,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-02-16 04:03:47,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1364, Unknown=0, NotChecked=0, Total=1482 [2023-02-16 04:03:47,021 INFO L87 Difference]: Start difference. First operand 449 states and 535 transitions. Second operand has 39 states, 39 states have (on average 5.0) internal successors, (195), 37 states have internal predecessors, (195), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-16 04:03:49,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:03:49,250 INFO L93 Difference]: Finished difference Result 1243 states and 1490 transitions. [2023-02-16 04:03:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-02-16 04:03:49,251 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 5.0) internal successors, (195), 37 states have internal predecessors, (195), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 143 [2023-02-16 04:03:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:03:49,253 INFO L225 Difference]: With dead ends: 1243 [2023-02-16 04:03:49,253 INFO L226 Difference]: Without dead ends: 966 [2023-02-16 04:03:49,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=549, Invalid=3873, Unknown=0, NotChecked=0, Total=4422 [2023-02-16 04:03:49,255 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 1108 mSDsluCounter, 3577 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 2381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:03:49,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 3840 Invalid, 2381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 2291 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-16 04:03:49,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 966 states. [2023-02-16 04:03:49,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 966 to 456. [2023-02-16 04:03:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 430 states have (on average 1.2069767441860466) internal successors, (519), 433 states have internal predecessors, (519), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2023-02-16 04:03:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 544 transitions. [2023-02-16 04:03:49,288 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 544 transitions. Word has length 143 [2023-02-16 04:03:49,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:03:49,288 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 544 transitions. [2023-02-16 04:03:49,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.0) internal successors, (195), 37 states have internal predecessors, (195), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-16 04:03:49,288 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 544 transitions. [2023-02-16 04:03:49,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-02-16 04:03:49,289 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:03:49,289 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 3, 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] [2023-02-16 04:03:49,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-16 04:03:49,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-16 04:03:49,496 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:03:49,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:03:49,496 INFO L85 PathProgramCache]: Analyzing trace with hash 158634451, now seen corresponding path program 1 times [2023-02-16 04:03:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:03:49,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881098476] [2023-02-16 04:03:49,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:49,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:03:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:49,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-16 04:03:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:49,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-16 04:03:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:50,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-16 04:03:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-16 04:03:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:50,032 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 4 proven. 702 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-16 04:03:50,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:03:50,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881098476] [2023-02-16 04:03:50,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881098476] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:03:50,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107274678] [2023-02-16 04:03:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:03:50,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:03:50,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:03:50,037 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:03:50,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-16 04:03:50,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:03:50,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 39 conjunts are in the unsatisfiable core [2023-02-16 04:03:50,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:03:50,590 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 38 proven. 680 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-16 04:03:50,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:03:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 4 proven. 702 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-16 04:03:51,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107274678] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:03:51,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:03:51,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 58 [2023-02-16 04:03:51,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658140698] [2023-02-16 04:03:51,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:03:51,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2023-02-16 04:03:51,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:03:51,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2023-02-16 04:03:51,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=761, Invalid=2545, Unknown=0, NotChecked=0, Total=3306 [2023-02-16 04:03:51,324 INFO L87 Difference]: Start difference. First operand 456 states and 544 transitions. Second operand has 58 states, 58 states have (on average 5.637931034482759) internal successors, (327), 58 states have internal predecessors, (327), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-16 04:04:15,651 WARN L233 SmtUtils]: Spent 19.06s on a formula simplification. DAG size of input: 62 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-16 04:04:39,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 04:04:41,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 04:04:43,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 04:04:45,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 04:04:47,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-16 04:06:41,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:41,506 INFO L93 Difference]: Finished difference Result 1387 states and 1729 transitions. [2023-02-16 04:06:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-02-16 04:06:41,506 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 58 states have (on average 5.637931034482759) internal successors, (327), 58 states have internal predecessors, (327), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 148 [2023-02-16 04:06:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:41,509 INFO L225 Difference]: With dead ends: 1387 [2023-02-16 04:06:41,509 INFO L226 Difference]: Without dead ends: 1081 [2023-02-16 04:06:41,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2228 ImplicationChecksByTransitivity, 157.5s TimeCoverageRelationStatistics Valid=2576, Invalid=6314, Unknown=40, NotChecked=0, Total=8930 [2023-02-16 04:06:41,511 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 681 mSDsluCounter, 3019 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 80 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 3172 SdHoareTripleChecker+Invalid, 3867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:41,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 3172 Invalid, 3867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3783 Invalid, 4 Unknown, 0 Unchecked, 13.3s Time] [2023-02-16 04:06:41,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2023-02-16 04:06:41,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 484. [2023-02-16 04:06:41,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 458 states have (on average 1.1790393013100438) internal successors, (540), 461 states have internal predecessors, (540), 7 states have call successors, (7), 4 states have call predecessors, (7), 9 states have return successors, (18), 18 states have call predecessors, (18), 7 states have call successors, (18) [2023-02-16 04:06:41,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 565 transitions. [2023-02-16 04:06:41,548 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 565 transitions. Word has length 148 [2023-02-16 04:06:41,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:41,548 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 565 transitions. [2023-02-16 04:06:41,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 5.637931034482759) internal successors, (327), 58 states have internal predecessors, (327), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-16 04:06:41,548 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 565 transitions. [2023-02-16 04:06:41,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-02-16 04:06:41,550 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:41,550 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 3, 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] [2023-02-16 04:06:41,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:41,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:06:41,755 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:41,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:41,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1909714657, now seen corresponding path program 2 times [2023-02-16 04:06:41,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:06:41,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250750113] [2023-02-16 04:06:41,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:41,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:06:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:06:41,807 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:06:41,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:06:41,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:06:41,881 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-16 04:06:41,882 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-02-16 04:06:41,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-02-16 04:06:41,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-02-16 04:06:41,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-02-16 04:06:41,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-02-16 04:06:41,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-02-16 04:06:41,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-02-16 04:06:41,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-02-16 04:06:41,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-02-16 04:06:41,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-02-16 04:06:41,885 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-02-16 04:06:41,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-02-16 04:06:41,888 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-02-16 04:06:41,891 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 04:06:41,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 04:06:41 BoogieIcfgContainer [2023-02-16 04:06:41,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 04:06:41,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:06:41,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:06:41,954 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:06:41,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:03:16" (3/4) ... [2023-02-16 04:06:41,957 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 04:06:41,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:06:41,957 INFO L158 Benchmark]: Toolchain (without parser) took 205807.39ms. Allocated memory was 125.8MB in the beginning and 237.0MB in the end (delta: 111.1MB). Free memory was 81.6MB in the beginning and 185.3MB in the end (delta: -103.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2023-02-16 04:06:41,957 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:06:41,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.84ms. Allocated memory is still 125.8MB. Free memory was 81.2MB in the beginning and 67.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-16 04:06:41,959 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.53ms. Allocated memory is still 125.8MB. Free memory was 67.8MB in the beginning and 65.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:06:41,964 INFO L158 Benchmark]: Boogie Preprocessor took 23.01ms. Allocated memory is still 125.8MB. Free memory was 65.4MB in the beginning and 63.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:06:41,965 INFO L158 Benchmark]: RCFGBuilder took 434.80ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 63.9MB in the beginning and 132.8MB in the end (delta: -68.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2023-02-16 04:06:41,965 INFO L158 Benchmark]: TraceAbstraction took 205059.35ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 132.0MB in the beginning and 185.3MB in the end (delta: -53.3MB). Peak memory consumption was 140.2MB. Max. memory is 16.1GB. [2023-02-16 04:06:41,965 INFO L158 Benchmark]: Witness Printer took 2.96ms. Allocated memory is still 237.0MB. Free memory is still 185.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:06:41,965 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 102.8MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.84ms. Allocated memory is still 125.8MB. Free memory was 81.2MB in the beginning and 67.8MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.53ms. Allocated memory is still 125.8MB. Free memory was 67.8MB in the beginning and 65.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.01ms. Allocated memory is still 125.8MB. Free memory was 65.4MB in the beginning and 63.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.80ms. Allocated memory was 125.8MB in the beginning and 163.6MB in the end (delta: 37.7MB). Free memory was 63.9MB in the beginning and 132.8MB in the end (delta: -68.9MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * TraceAbstraction took 205059.35ms. Allocated memory was 163.6MB in the beginning and 237.0MB in the end (delta: 73.4MB). Free memory was 132.0MB in the beginning and 185.3MB in the end (delta: -53.3MB). Peak memory consumption was 140.2MB. Max. memory is 16.1GB. * Witness Printer took 2.96ms. Allocated memory is still 237.0MB. Free memory is still 185.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 76, overapproximation of bitwiseAnd at line 171. Possible FailurePath: [L221] unsigned int a ; [L222] unsigned int ma = __VERIFIER_nondet_uint(); [L223] signed char ea = __VERIFIER_nondet_char(); [L224] unsigned int b ; [L225] unsigned int mb = __VERIFIER_nondet_uint(); [L226] signed char eb = __VERIFIER_nondet_char(); [L227] unsigned int r_mul ; [L228] unsigned int zero ; [L229] unsigned int one ; [L230] int sb ; [L231] int tmp ; [L232] int tmp___0 ; [L233] int tmp___1 ; [L234] int __retres16 ; VAL [ea=-127, eb=-128] [L238] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L238] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=-127, eb=-128] [L238] zero = base2flt(0, 0) [L239] CALL, EXPR base2flt(1, 0) VAL [\old(e)=0, \old(m)=1] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L35] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=0, m=1] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-1, m=2] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-2, m=4] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-3, m=8] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-4, m=16] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-5, m=32] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-6, m=64] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-7, m=128] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-8, m=256] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-9, m=512] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-10, m=1024] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-11, m=2048] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-12, m=4096] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-13, m=8192] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-14, m=16384] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-15, m=32768] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-16, m=65536] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-17, m=131072] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-18, m=262144] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-19, m=524288] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-20, m=1048576] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-21, m=2097152] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-22, m=4194304] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L47] COND TRUE m < 1U << 24U VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L37] COND TRUE 1 VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L39] COND FALSE !(e <= -128) VAL [\old(e)=0, \old(m)=1, e=-23, m=8388608] [L45] EXPR e - 1 [L45] e = e - 1 [L46] m = m << 1U VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L47] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] EXPR e + 128 VAL [\old(e)=0, \old(m)=1, e=-24, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=1, __retres4=1744830464, e=-24, m=0, res=1744830464] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=1, \result=1744830464, __retres4=1744830464, e=-24, m=0, res=1744830464] [L239] RET, EXPR base2flt(1, 0) VAL [base2flt(1, 0)=1744830464, ea=-127, eb=-128, zero=0] [L239] one = base2flt(1, 0) [L240] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=-127, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=16777216] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] EXPR e + 128 VAL [\old(e)=-127, \old(m)=16777216, e=-127, m=0] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-127, \old(m)=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [L80] return (__retres4); VAL [\old(e)=-127, \old(m)=16777216, \result=16777216, __retres4=16777216, e=-127, m=0, res=16777216] [L240] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=16777216, ea=-127, eb=-128, ma=16777216, one=1744830464, zero=0] [L240] a = base2flt(ma, ea) [L241] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=-128, \old(m)=16777217] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L29] COND FALSE !(! m) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L57] COND TRUE 1 VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L76] m = m & ~ (1U << 24U) VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L77] EXPR e + 128 VAL [\old(e)=-128, \old(m)=16777217, e=-128, m=16777217] [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=-128, \old(m)=16777217, __retres4=16777217, e=-128, m=16777217, res=16777217] [L80] return (__retres4); VAL [\old(e)=-128, \old(m)=16777217, \result=-36028797002186751, __retres4=16777217, e=-128, m=16777217, res=16777217] [L241] RET, EXPR base2flt(mb, eb) VAL [a=16777216, base2flt(mb, eb)=-36028797002186751, ea=-127, eb=-128, ma=16777216, mb=16777217, one=1744830464, zero=0] [L241] b = base2flt(mb, eb) [L242] CALL mulflt(a, b) [L148] unsigned int res ; [L149] unsigned int ma ; [L150] unsigned int mb ; [L151] unsigned long long accu ; [L152] int ea ; [L153] int eb ; [L154] unsigned int tmp ; [L155] unsigned int __retres10 ; VAL [\old(a)=16777216, \old(b)=16777217, a=16777216, b=16777217] [L158] COND TRUE a < b [L159] tmp = a [L160] a = b [L161] b = tmp VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, tmp=16777216] [L165] COND FALSE !(! b) VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, tmp=16777216] [L171] ma = a & ((1U << 24U) - 1U) VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, ma=0, tmp=16777216] [L172] (int )(a >> 24U) - 128 VAL [\old(a)=16777216, \old(b)=16777217, a=16777217, b=16777216, ma=0, tmp=16777216] - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 172]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 175]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 178]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 201]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 214]: 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 3 procedures, 109 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 205.0s, OverallIterations: 31, TraceHistogramMax: 24, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 186.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 8667 SdHoareTripleChecker+Valid, 18.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8633 mSDsluCounter, 30004 SdHoareTripleChecker+Invalid, 17.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26513 mSDsCounter, 553 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14587 IncrementalHoareTripleChecker+Invalid, 15144 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 553 mSolverCounterUnsat, 3491 mSDtfsCounter, 14587 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3791 GetRequests, 3109 SyntacticMatches, 9 SemanticMatches, 673 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5903 ImplicationChecksByTransitivity, 170.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=484occurred in iteration=30, InterpolantAutomatonStates: 488, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 30 MinimizatonAttempts, 5883 StatesRemovedByMinimization, 30 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 4176 NumberOfCodeBlocks, 4118 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 5187 ConstructedInterpolants, 0 QuantifiedInterpolants, 20825 SizeOfPredicates, 78 NumberOfNonLiveVariables, 4379 ConjunctsInSsa, 359 ConjunctsInUnsatCore, 64 InterpolantComputations, 18 PerfectInterpolantSequences, 9156/17048 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 [2023-02-16 04:06:42,182 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-02-16 04:06:42,188 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 Retrying with bit-precise analysis ### Bit-precise run ### 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_3a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.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 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:06:43,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:06:43,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:06:43,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:06:43,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:06:43,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:06:43,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:06:43,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:06:43,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:06:43,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:06:43,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:06:43,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:06:43,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:06:43,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:06:43,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:06:43,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:06:43,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:06:43,638 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:06:43,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:06:43,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:06:43,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:06:43,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:06:43,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:06:43,646 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:06:43,651 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:06:43,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:06:43,652 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:06:43,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:06:43,654 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:06:43,655 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:06:43,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:06:43,656 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:06:43,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:06:43,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:06:43,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:06:43,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:06:43,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:06:43,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:06:43,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:06:43,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:06:43,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:06:43,661 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Bitvector.epf [2023-02-16 04:06:43,687 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:06:43,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:06:43,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:06:43,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:06:43,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 04:06:43,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 04:06:43,690 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:06:43,690 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:06:43,690 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:06:43,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:06:43,691 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 04:06:43,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:06:43,691 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 04:06:43,691 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:06:43,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 04:06:43,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 04:06:43,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 04:06:43,692 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-16 04:06:43,692 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-16 04:06:43,692 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-16 04:06:43,693 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-16 04:06:43,693 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 04:06:43,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:06:43,693 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:06:43,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 04:06:43,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:06:43,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:06:43,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 04:06:43,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:06:43,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:06:43,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 04:06:43,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 04:06:43,700 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-16 04:06:43,700 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-16 04:06:43,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 04:06:43,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 04:06:43,700 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 04:06:43,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 04:06:43,701 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-16 04:06:43,701 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 04:06:43,701 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95f89ee6bcff8f17eb3e93b344abecdfb8ddea0894d1b25afafccf6235d7ced6 [2023-02-16 04:06:43,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:06:43,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:06:43,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:06:43,982 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:06:43,982 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:06:43,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2023-02-16 04:06:44,918 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:06:45,070 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:06:45,072 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c [2023-02-16 04:06:45,080 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01009b15/65cf7541f5d64060b40f6b86268d8fd4/FLAGccb536b88 [2023-02-16 04:06:45,095 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e01009b15/65cf7541f5d64060b40f6b86268d8fd4 [2023-02-16 04:06:45,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:06:45,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:06:45,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:06:45,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:06:45,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:06:45,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d68cee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45, skipping insertion in model container [2023-02-16 04:06:45,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:06:45,134 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:06:45,245 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2023-02-16 04:06:45,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:06:45,307 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:06:45,317 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_3a.c.cil.c[728,741] [2023-02-16 04:06:45,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:06:45,359 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:06:45,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45 WrapperNode [2023-02-16 04:06:45,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:06:45,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:06:45,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:06:45,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:06:45,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,384 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 122 [2023-02-16 04:06:45,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:06:45,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:06:45,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:06:45,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:06:45,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,407 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,436 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:06:45,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:06:45,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:06:45,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:06:45,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (1/1) ... [2023-02-16 04:06:45,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 04:06:45,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:06:45,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-16 04:06:45,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-16 04:06:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 04:06:45,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-16 04:06:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-16 04:06:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-16 04:06:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:06:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:06:45,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 04:06:45,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 04:06:45,567 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:06:45,569 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:06:45,905 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:06:45,909 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:06:45,909 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-16 04:06:45,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:06:45 BoogieIcfgContainer [2023-02-16 04:06:45,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:06:45,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 04:06:45,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 04:06:45,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 04:06:45,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 04:06:45" (1/3) ... [2023-02-16 04:06:45,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687b8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:06:45, skipping insertion in model container [2023-02-16 04:06:45,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:06:45" (2/3) ... [2023-02-16 04:06:45,922 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687b8e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 04:06:45, skipping insertion in model container [2023-02-16 04:06:45,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:06:45" (3/3) ... [2023-02-16 04:06:45,923 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_3a.c.cil.c [2023-02-16 04:06:45,935 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 04:06:45,935 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-02-16 04:06:45,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 04:06:45,985 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1484576c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 04:06:45,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-02-16 04:06:45,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 79 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 04:06:45,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:06:45,993 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:45,993 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:45,994 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:45,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:45,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1033814779, now seen corresponding path program 1 times [2023-02-16 04:06:46,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:46,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155820137] [2023-02-16 04:06:46,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:46,007 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:46,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:46,009 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:46,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-16 04:06:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:46,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 04:06:46,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:46,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:46,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:06:46,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:46,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155820137] [2023-02-16 04:06:46,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155820137] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:06:46,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:06:46,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-16 04:06:46,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641366581] [2023-02-16 04:06:46,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:06:46,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 04:06:46,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:46,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 04:06:46,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 04:06:46,112 INFO L87 Difference]: Start difference. First operand has 86 states, 60 states have (on average 1.6833333333333333) internal successors, (101), 79 states have internal predecessors, (101), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 1 states have (on average 8.0) 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) [2023-02-16 04:06:46,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:46,145 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2023-02-16 04:06:46,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 04:06:46,147 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 8.0) 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 [2023-02-16 04:06:46,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:46,152 INFO L225 Difference]: With dead ends: 159 [2023-02-16 04:06:46,152 INFO L226 Difference]: Without dead ends: 57 [2023-02-16 04:06:46,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 04:06:46,159 INFO L413 NwaCegarLoop]: 96 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, 96 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 [2023-02-16 04:06:46,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:06:46,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-16 04:06:46,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2023-02-16 04:06:46,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 51 states have internal predecessors, (59), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 67 transitions. [2023-02-16 04:06:46,195 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 67 transitions. Word has length 9 [2023-02-16 04:06:46,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:46,196 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 67 transitions. [2023-02-16 04:06:46,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 8.0) 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) [2023-02-16 04:06:46,196 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 67 transitions. [2023-02-16 04:06:46,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-16 04:06:46,198 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:46,199 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:46,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:46,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:46,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:46,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:46,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1034756045, now seen corresponding path program 1 times [2023-02-16 04:06:46,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:46,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888714604] [2023-02-16 04:06:46,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:46,406 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:46,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:46,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:46,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-16 04:06:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:46,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:06:46,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:46,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:46,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:06:46,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:46,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888714604] [2023-02-16 04:06:46,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888714604] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:06:46,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:06:46,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:06:46,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577325432] [2023-02-16 04:06:46,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:06:46,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:06:46,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:46,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:06:46,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:06:46,498 INFO L87 Difference]: Start difference. First operand 57 states and 67 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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) [2023-02-16 04:06:46,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:46,536 INFO L93 Difference]: Finished difference Result 119 states and 141 transitions. [2023-02-16 04:06:46,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:06:46,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 [2023-02-16 04:06:46,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:46,538 INFO L225 Difference]: With dead ends: 119 [2023-02-16 04:06:46,538 INFO L226 Difference]: Without dead ends: 65 [2023-02-16 04:06:46,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:06:46,540 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 9 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:46,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 178 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:06:46,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-02-16 04:06:46,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 62. [2023-02-16 04:06:46,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 48 states have (on average 1.3125) internal successors, (63), 55 states have internal predecessors, (63), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:46,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 71 transitions. [2023-02-16 04:06:46,547 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 71 transitions. Word has length 9 [2023-02-16 04:06:46,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:46,547 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 71 transitions. [2023-02-16 04:06:46,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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) [2023-02-16 04:06:46,547 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 71 transitions. [2023-02-16 04:06:46,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-16 04:06:46,548 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:46,548 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:46,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-02-16 04:06:46,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:46,753 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:46,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:46,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1755996823, now seen corresponding path program 1 times [2023-02-16 04:06:46,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:46,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [427500645] [2023-02-16 04:06:46,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:46,755 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:46,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:46,756 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:46,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-16 04:06:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:46,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:06:46,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:46,810 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:06:46,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:46,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [427500645] [2023-02-16 04:06:46,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [427500645] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:06:46,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:06:46,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:06:46,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020551493] [2023-02-16 04:06:46,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:06:46,812 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:06:46,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:46,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:06:46,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:06:46,813 INFO L87 Difference]: Start difference. First operand 62 states and 71 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-02-16 04:06:46,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:46,878 INFO L93 Difference]: Finished difference Result 151 states and 180 transitions. [2023-02-16 04:06:46,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:06:46,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2023-02-16 04:06:46,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:46,879 INFO L225 Difference]: With dead ends: 151 [2023-02-16 04:06:46,879 INFO L226 Difference]: Without dead ends: 99 [2023-02-16 04:06:46,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:06:46,881 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 55 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:46,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 169 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:06:46,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-16 04:06:46,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 92. [2023-02-16 04:06:46,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 84 states have internal predecessors, (102), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:46,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 110 transitions. [2023-02-16 04:06:46,889 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 110 transitions. Word has length 16 [2023-02-16 04:06:46,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:46,889 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 110 transitions. [2023-02-16 04:06:46,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2023-02-16 04:06:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2023-02-16 04:06:46,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-16 04:06:46,890 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:46,890 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:46,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:47,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:47,096 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:47,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:47,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1427259253, now seen corresponding path program 1 times [2023-02-16 04:06:47,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:47,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1198938606] [2023-02-16 04:06:47,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:47,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:47,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:47,099 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:47,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-16 04:06:47,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:47,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:06:47,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:47,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:47,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:06:47,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:47,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1198938606] [2023-02-16 04:06:47,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1198938606] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:06:47,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:06:47,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 04:06:47,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000398390] [2023-02-16 04:06:47,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:06:47,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:06:47,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:47,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:06:47,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:06:47,190 INFO L87 Difference]: Start difference. First operand 92 states and 110 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-02-16 04:06:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:47,249 INFO L93 Difference]: Finished difference Result 162 states and 189 transitions. [2023-02-16 04:06:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:06:47,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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 21 [2023-02-16 04:06:47,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:47,251 INFO L225 Difference]: With dead ends: 162 [2023-02-16 04:06:47,251 INFO L226 Difference]: Without dead ends: 91 [2023-02-16 04:06:47,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-16 04:06:47,252 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 38 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:47,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 238 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:06:47,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-16 04:06:47,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 81. [2023-02-16 04:06:47,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 66 states have (on average 1.2878787878787878) internal successors, (85), 73 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:47,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 93 transitions. [2023-02-16 04:06:47,260 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 93 transitions. Word has length 21 [2023-02-16 04:06:47,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:47,260 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 93 transitions. [2023-02-16 04:06:47,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 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) [2023-02-16 04:06:47,260 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 93 transitions. [2023-02-16 04:06:47,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-16 04:06:47,262 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:47,262 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:47,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:47,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:47,469 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:47,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:47,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1427150149, now seen corresponding path program 1 times [2023-02-16 04:06:47,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:47,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1523671974] [2023-02-16 04:06:47,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:47,470 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:47,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:47,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:47,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-02-16 04:06:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:47,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:06:47,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:47,526 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:47,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:06:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:47,622 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:47,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1523671974] [2023-02-16 04:06:47,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1523671974] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:06:47,622 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:06:47,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-02-16 04:06:47,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157836688] [2023-02-16 04:06:47,622 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:06:47,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 04:06:47,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:47,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 04:06:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-16 04:06:47,624 INFO L87 Difference]: Start difference. First operand 81 states and 93 transitions. Second operand has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 04:06:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:47,969 INFO L93 Difference]: Finished difference Result 173 states and 209 transitions. [2023-02-16 04:06:47,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 04:06:47,970 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-02-16 04:06:47,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:47,971 INFO L225 Difference]: With dead ends: 173 [2023-02-16 04:06:47,971 INFO L226 Difference]: Without dead ends: 118 [2023-02-16 04:06:47,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2023-02-16 04:06:47,972 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 186 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:47,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [186 Valid, 271 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:06:47,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-02-16 04:06:47,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 82. [2023-02-16 04:06:47,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 68 states have (on average 1.25) internal successors, (85), 74 states have internal predecessors, (85), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2023-02-16 04:06:47,981 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 21 [2023-02-16 04:06:47,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:47,981 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2023-02-16 04:06:47,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 04:06:47,982 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2023-02-16 04:06:47,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-16 04:06:47,982 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:47,982 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:47,992 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-02-16 04:06:48,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:48,189 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:48,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:48,189 INFO L85 PathProgramCache]: Analyzing trace with hash 268685593, now seen corresponding path program 1 times [2023-02-16 04:06:48,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:48,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1808095733] [2023-02-16 04:06:48,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:48,190 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:48,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:48,191 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:48,193 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-02-16 04:06:48,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:48,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:06:48,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:48,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:06:48,301 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:48,301 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:48,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1808095733] [2023-02-16 04:06:48,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1808095733] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:06:48,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:06:48,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-02-16 04:06:48,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108714048] [2023-02-16 04:06:48,302 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:06:48,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 04:06:48,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:48,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 04:06:48,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-02-16 04:06:48,304 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 04:06:48,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:48,517 INFO L93 Difference]: Finished difference Result 176 states and 204 transitions. [2023-02-16 04:06:48,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-16 04:06:48,518 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2023-02-16 04:06:48,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:48,519 INFO L225 Difference]: With dead ends: 176 [2023-02-16 04:06:48,519 INFO L226 Difference]: Without dead ends: 119 [2023-02-16 04:06:48,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2023-02-16 04:06:48,520 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 141 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:48,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 474 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:06:48,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2023-02-16 04:06:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 100. [2023-02-16 04:06:48,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 86 states have (on average 1.2325581395348837) internal successors, (106), 92 states have internal predecessors, (106), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:48,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2023-02-16 04:06:48,535 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 26 [2023-02-16 04:06:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:48,535 INFO L495 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2023-02-16 04:06:48,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 04:06:48,535 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2023-02-16 04:06:48,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-16 04:06:48,538 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:48,538 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-02-16 04:06:48,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:48,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:48,744 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1743264717, now seen corresponding path program 1 times [2023-02-16 04:06:48,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:48,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [841052225] [2023-02-16 04:06:48,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:48,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:48,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:48,746 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:48,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-02-16 04:06:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:48,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:06:48,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:48,862 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:48,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:06:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:49,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:49,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [841052225] [2023-02-16 04:06:49,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [841052225] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:06:49,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:06:49,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-02-16 04:06:49,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499802804] [2023-02-16 04:06:49,029 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:06:49,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 04:06:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:49,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 04:06:49,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-16 04:06:49,030 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:49,408 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2023-02-16 04:06:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-16 04:06:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2023-02-16 04:06:49,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:49,409 INFO L225 Difference]: With dead ends: 243 [2023-02-16 04:06:49,409 INFO L226 Difference]: Without dead ends: 186 [2023-02-16 04:06:49,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=149, Unknown=0, NotChecked=0, Total=240 [2023-02-16 04:06:49,410 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 114 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 348 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:49,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 348 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:06:49,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-02-16 04:06:49,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 102. [2023-02-16 04:06:49,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 88 states have (on average 1.1931818181818181) internal successors, (105), 94 states have internal predecessors, (105), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:49,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 113 transitions. [2023-02-16 04:06:49,422 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 113 transitions. Word has length 38 [2023-02-16 04:06:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:49,422 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 113 transitions. [2023-02-16 04:06:49,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.0) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:49,422 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 113 transitions. [2023-02-16 04:06:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-16 04:06:49,423 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:49,423 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:49,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:49,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:49,637 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:49,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:49,637 INFO L85 PathProgramCache]: Analyzing trace with hash 171656217, now seen corresponding path program 2 times [2023-02-16 04:06:49,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:49,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1467798955] [2023-02-16 04:06:49,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:06:49,638 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:49,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:49,639 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:49,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-02-16 04:06:49,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:06:49,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:06:49,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:06:49,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:49,762 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:06:50,027 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 2 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:06:50,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:50,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1467798955] [2023-02-16 04:06:50,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1467798955] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:06:50,028 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:06:50,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2023-02-16 04:06:50,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76097530] [2023-02-16 04:06:50,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:06:50,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-16 04:06:50,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:50,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-16 04:06:50,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-02-16 04:06:50,029 INFO L87 Difference]: Start difference. First operand 102 states and 113 transitions. Second operand has 18 states, 17 states have (on average 4.647058823529412) internal successors, (79), 16 states have internal predecessors, (79), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 04:06:51,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:51,862 INFO L93 Difference]: Finished difference Result 244 states and 288 transitions. [2023-02-16 04:06:51,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-16 04:06:51,863 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.647058823529412) internal successors, (79), 16 states have internal predecessors, (79), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2023-02-16 04:06:51,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:51,864 INFO L225 Difference]: With dead ends: 244 [2023-02-16 04:06:51,864 INFO L226 Difference]: Without dead ends: 190 [2023-02-16 04:06:51,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=458, Invalid=1102, Unknown=0, NotChecked=0, Total=1560 [2023-02-16 04:06:51,866 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 421 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:51,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 700 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-16 04:06:51,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-02-16 04:06:51,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 134. [2023-02-16 04:06:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 121 states have (on average 1.2148760330578512) internal successors, (147), 126 states have internal predecessors, (147), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2023-02-16 04:06:51,881 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 46 [2023-02-16 04:06:51,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:51,881 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2023-02-16 04:06:51,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.647058823529412) internal successors, (79), 16 states have internal predecessors, (79), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-02-16 04:06:51,882 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2023-02-16 04:06:51,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-02-16 04:06:51,883 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:51,883 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:51,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-02-16 04:06:52,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:52,092 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:52,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1785526182, now seen corresponding path program 1 times [2023-02-16 04:06:52,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:52,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105849525] [2023-02-16 04:06:52,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:52,093 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:52,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:52,094 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:52,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-02-16 04:06:52,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:52,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:06:52,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:52,277 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:52,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:06:52,563 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 12 proven. 75 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:52,564 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:52,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105849525] [2023-02-16 04:06:52,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105849525] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:06:52,564 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:06:52,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2023-02-16 04:06:52,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589324795] [2023-02-16 04:06:52,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:06:52,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-16 04:06:52,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-16 04:06:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-02-16 04:06:52,566 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:53,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:53,188 INFO L93 Difference]: Finished difference Result 389 states and 477 transitions. [2023-02-16 04:06:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-16 04:06:53,189 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2023-02-16 04:06:53,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:53,191 INFO L225 Difference]: With dead ends: 389 [2023-02-16 04:06:53,191 INFO L226 Difference]: Without dead ends: 299 [2023-02-16 04:06:53,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=354, Invalid=638, Unknown=0, NotChecked=0, Total=992 [2023-02-16 04:06:53,192 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 189 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 824 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:53,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 824 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-16 04:06:53,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-02-16 04:06:53,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 167. [2023-02-16 04:06:53,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 154 states have (on average 1.2012987012987013) internal successors, (185), 159 states have internal predecessors, (185), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:53,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 193 transitions. [2023-02-16 04:06:53,214 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 193 transitions. Word has length 59 [2023-02-16 04:06:53,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:53,215 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 193 transitions. [2023-02-16 04:06:53,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 5.111111111111111) internal successors, (92), 18 states have internal predecessors, (92), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:53,215 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 193 transitions. [2023-02-16 04:06:53,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-16 04:06:53,220 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:53,220 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 7, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:53,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-02-16 04:06:53,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:53,427 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:53,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:53,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1092781201, now seen corresponding path program 1 times [2023-02-16 04:06:53,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:53,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1565595064] [2023-02-16 04:06:53,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:06:53,428 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:53,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:53,429 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:53,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-02-16 04:06:53,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:06:53,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-16 04:06:53,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:53,667 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 9 proven. 119 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:53,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:06:54,162 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 9 proven. 119 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:54,162 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:54,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1565595064] [2023-02-16 04:06:54,162 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1565595064] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:06:54,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:06:54,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2023-02-16 04:06:54,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328315076] [2023-02-16 04:06:54,163 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:06:54,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-16 04:06:54,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:54,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-16 04:06:54,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2023-02-16 04:06:54,164 INFO L87 Difference]: Start difference. First operand 167 states and 193 transitions. Second operand has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:55,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:55,707 INFO L93 Difference]: Finished difference Result 461 states and 558 transitions. [2023-02-16 04:06:55,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-16 04:06:55,711 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 63 [2023-02-16 04:06:55,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:55,713 INFO L225 Difference]: With dead ends: 461 [2023-02-16 04:06:55,713 INFO L226 Difference]: Without dead ends: 377 [2023-02-16 04:06:55,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=411, Invalid=779, Unknown=0, NotChecked=0, Total=1190 [2023-02-16 04:06:55,714 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 392 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 877 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:55,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 877 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-16 04:06:55,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-02-16 04:06:55,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 179. [2023-02-16 04:06:55,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 166 states have (on average 1.1626506024096386) internal successors, (193), 171 states have internal predecessors, (193), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:55,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 201 transitions. [2023-02-16 04:06:55,731 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 201 transitions. Word has length 63 [2023-02-16 04:06:55,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:55,731 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 201 transitions. [2023-02-16 04:06:55,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.0) internal successors, (100), 20 states have internal predecessors, (100), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:55,732 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 201 transitions. [2023-02-16 04:06:55,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-02-16 04:06:55,735 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:55,735 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 13, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:55,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:55,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:55,939 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:55,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:55,939 INFO L85 PathProgramCache]: Analyzing trace with hash -331722330, now seen corresponding path program 2 times [2023-02-16 04:06:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:55,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398487156] [2023-02-16 04:06:55,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:06:55,940 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:55,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:55,941 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:55,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-02-16 04:06:55,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:06:55,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:06:55,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 04:06:55,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:56,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:06:56,969 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 12 proven. 455 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:56,969 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:06:56,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398487156] [2023-02-16 04:06:56,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398487156] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:06:56,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:06:56,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2023-02-16 04:06:56,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655143884] [2023-02-16 04:06:56,970 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:06:56,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-02-16 04:06:56,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:06:56,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-02-16 04:06:56,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-02-16 04:06:56,971 INFO L87 Difference]: Start difference. First operand 179 states and 201 transitions. Second operand has 34 states, 34 states have (on average 5.0588235294117645) internal successors, (172), 34 states have internal predecessors, (172), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:58,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:06:58,403 INFO L93 Difference]: Finished difference Result 530 states and 651 transitions. [2023-02-16 04:06:58,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-16 04:06:58,404 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.0588235294117645) internal successors, (172), 34 states have internal predecessors, (172), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 99 [2023-02-16 04:06:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:06:58,406 INFO L225 Difference]: With dead ends: 530 [2023-02-16 04:06:58,406 INFO L226 Difference]: Without dead ends: 440 [2023-02-16 04:06:58,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=991, Invalid=2315, Unknown=0, NotChecked=0, Total=3306 [2023-02-16 04:06:58,408 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 605 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 2066 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-16 04:06:58,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 2066 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-16 04:06:58,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2023-02-16 04:06:58,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 217. [2023-02-16 04:06:58,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 204 states have (on average 1.1568627450980393) internal successors, (236), 209 states have internal predecessors, (236), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:06:58,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 244 transitions. [2023-02-16 04:06:58,435 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 244 transitions. Word has length 99 [2023-02-16 04:06:58,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:06:58,436 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 244 transitions. [2023-02-16 04:06:58,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.0588235294117645) internal successors, (172), 34 states have internal predecessors, (172), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:06:58,436 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 244 transitions. [2023-02-16 04:06:58,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-02-16 04:06:58,437 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:06:58,437 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:06:58,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-02-16 04:06:58,644 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:58,645 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:06:58,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:06:58,645 INFO L85 PathProgramCache]: Analyzing trace with hash 818718227, now seen corresponding path program 2 times [2023-02-16 04:06:58,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:06:58,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231365906] [2023-02-16 04:06:58,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:06:58,646 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:06:58,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:06:58,647 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:06:58,648 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-02-16 04:06:58,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 04:06:58,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:06:58,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-16 04:06:58,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:06:59,211 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 9 proven. 632 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:06:59,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:07:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 9 proven. 632 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:07:00,658 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:00,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231365906] [2023-02-16 04:07:00,658 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [231365906] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:07:00,658 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:07:00,658 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2023-02-16 04:07:00,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296715817] [2023-02-16 04:07:00,658 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:07:00,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-16 04:07:00,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:00,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-16 04:07:00,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1009, Unknown=0, NotChecked=0, Total=1406 [2023-02-16 04:07:00,660 INFO L87 Difference]: Start difference. First operand 217 states and 244 transitions. Second operand has 38 states, 38 states have (on average 5.0) internal successors, (190), 38 states have internal predecessors, (190), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:07:07,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:07,324 INFO L93 Difference]: Finished difference Result 824 states and 1001 transitions. [2023-02-16 04:07:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2023-02-16 04:07:07,325 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 5.0) internal successors, (190), 38 states have internal predecessors, (190), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 108 [2023-02-16 04:07:07,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:07,328 INFO L225 Difference]: With dead ends: 824 [2023-02-16 04:07:07,328 INFO L226 Difference]: Without dead ends: 740 [2023-02-16 04:07:07,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1635, Invalid=3335, Unknown=0, NotChecked=0, Total=4970 [2023-02-16 04:07:07,329 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 1039 mSDsluCounter, 2595 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1039 SdHoareTripleChecker+Valid, 2743 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:07,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1039 Valid, 2743 Invalid, 2994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 2951 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-02-16 04:07:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2023-02-16 04:07:07,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 269. [2023-02-16 04:07:07,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 256 states have (on average 1.13671875) internal successors, (291), 261 states have internal predecessors, (291), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:07:07,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 299 transitions. [2023-02-16 04:07:07,365 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 299 transitions. Word has length 108 [2023-02-16 04:07:07,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:07,366 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 299 transitions. [2023-02-16 04:07:07,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 5.0) internal successors, (190), 38 states have internal predecessors, (190), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-16 04:07:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 299 transitions. [2023-02-16 04:07:07,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-02-16 04:07:07,367 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:07,367 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:07:07,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:07,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:07,568 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:07,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:07,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2109656538, now seen corresponding path program 3 times [2023-02-16 04:07:07,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:07,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1894090818] [2023-02-16 04:07:07,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:07:07,569 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:07,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:07,570 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:07,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-02-16 04:07:07,596 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-02-16 04:07:07,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:07:07,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:07:07,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:07,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1393 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2023-02-16 04:07:07,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:07,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:07,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1894090818] [2023-02-16 04:07:07,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1894090818] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:07,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:07,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:07:07,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167905497] [2023-02-16 04:07:07,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:07,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:07:07,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:07,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:07:07,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:07:07,657 INFO L87 Difference]: Start difference. First operand 269 states and 299 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-16 04:07:07,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:07,763 INFO L93 Difference]: Finished difference Result 281 states and 314 transitions. [2023-02-16 04:07:07,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:07:07,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 149 [2023-02-16 04:07:07,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:07,764 INFO L225 Difference]: With dead ends: 281 [2023-02-16 04:07:07,764 INFO L226 Difference]: Without dead ends: 280 [2023-02-16 04:07:07,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:07:07,765 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 52 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:07,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 130 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:07:07,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-02-16 04:07:07,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 271. [2023-02-16 04:07:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 258 states have (on average 1.1395348837209303) internal successors, (294), 263 states have internal predecessors, (294), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:07:07,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2023-02-16 04:07:07,796 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 149 [2023-02-16 04:07:07,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:07,796 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2023-02-16 04:07:07,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-02-16 04:07:07,797 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2023-02-16 04:07:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-16 04:07:07,797 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:07,798 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 23, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:07:07,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:08,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:08,004 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:08,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:08,005 INFO L85 PathProgramCache]: Analyzing trace with hash -679741690, now seen corresponding path program 1 times [2023-02-16 04:07:08,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:08,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [490523364] [2023-02-16 04:07:08,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:08,005 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:08,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:08,006 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:08,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-02-16 04:07:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:08,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:07:08,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:08,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1513 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 1385 trivial. 0 not checked. [2023-02-16 04:07:08,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:08,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:08,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [490523364] [2023-02-16 04:07:08,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [490523364] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:08,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:08,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 04:07:08,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332439178] [2023-02-16 04:07:08,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:08,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:07:08,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:08,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:07:08,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:07:08,677 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-02-16 04:07:10,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:10,665 INFO L93 Difference]: Finished difference Result 286 states and 321 transitions. [2023-02-16 04:07:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 04:07:10,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 152 [2023-02-16 04:07:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:10,667 INFO L225 Difference]: With dead ends: 286 [2023-02-16 04:07:10,667 INFO L226 Difference]: Without dead ends: 285 [2023-02-16 04:07:10,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2023-02-16 04:07:10,667 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 55 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:10,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 231 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-02-16 04:07:10,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-02-16 04:07:10,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 240. [2023-02-16 04:07:10,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 228 states have (on average 1.105263157894737) internal successors, (252), 232 states have internal predecessors, (252), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:07:10,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 260 transitions. [2023-02-16 04:07:10,690 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 260 transitions. Word has length 152 [2023-02-16 04:07:10,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:10,690 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 260 transitions. [2023-02-16 04:07:10,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2023-02-16 04:07:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 260 transitions. [2023-02-16 04:07:10,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-16 04:07:10,691 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:10,692 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:07:10,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:10,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:10,907 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:10,907 INFO L85 PathProgramCache]: Analyzing trace with hash 765853977, now seen corresponding path program 1 times [2023-02-16 04:07:10,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:10,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1524468333] [2023-02-16 04:07:10,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:10,908 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:10,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:10,909 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:10,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-02-16 04:07:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:10,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 04:07:10,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2023-02-16 04:07:10,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:10,991 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:10,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1524468333] [2023-02-16 04:07:10,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1524468333] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:10,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:10,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-02-16 04:07:10,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634386248] [2023-02-16 04:07:10,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:10,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-16 04:07:10,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:10,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-16 04:07:10,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-02-16 04:07:10,992 INFO L87 Difference]: Start difference. First operand 240 states and 260 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:11,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:11,056 INFO L93 Difference]: Finished difference Result 273 states and 295 transitions. [2023-02-16 04:07:11,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-16 04:07:11,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 161 [2023-02-16 04:07:11,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:11,058 INFO L225 Difference]: With dead ends: 273 [2023-02-16 04:07:11,058 INFO L226 Difference]: Without dead ends: 246 [2023-02-16 04:07:11,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-16 04:07:11,060 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 3 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:11,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 295 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:07:11,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2023-02-16 04:07:11,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 243. [2023-02-16 04:07:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 230 states have (on average 1.1043478260869566) internal successors, (254), 235 states have internal predecessors, (254), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-16 04:07:11,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 263 transitions. [2023-02-16 04:07:11,087 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 263 transitions. Word has length 161 [2023-02-16 04:07:11,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:11,087 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 263 transitions. [2023-02-16 04:07:11,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 263 transitions. [2023-02-16 04:07:11,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-02-16 04:07:11,089 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:11,089 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:11,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:11,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:11,298 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:11,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash 765465224, now seen corresponding path program 1 times [2023-02-16 04:07:11,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:11,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563814917] [2023-02-16 04:07:11,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:11,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:11,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:11,300 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:11,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-02-16 04:07:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:11,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-16 04:07:11,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2023-02-16 04:07:11,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:07:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1411 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1402 trivial. 0 not checked. [2023-02-16 04:07:11,455 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:11,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563814917] [2023-02-16 04:07:11,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563814917] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:07:11,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 04:07:11,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2023-02-16 04:07:11,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925689443] [2023-02-16 04:07:11,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 04:07:11,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 04:07:11,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:11,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 04:07:11,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-16 04:07:11,457 INFO L87 Difference]: Start difference. First operand 243 states and 263 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:11,543 INFO L93 Difference]: Finished difference Result 275 states and 297 transitions. [2023-02-16 04:07:11,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-16 04:07:11,543 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 165 [2023-02-16 04:07:11,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:11,544 INFO L225 Difference]: With dead ends: 275 [2023-02-16 04:07:11,544 INFO L226 Difference]: Without dead ends: 243 [2023-02-16 04:07:11,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 321 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:07:11,545 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 6 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:11,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 423 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:07:11,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-02-16 04:07:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2023-02-16 04:07:11,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 228 states have (on average 1.0964912280701755) internal successors, (250), 232 states have internal predecessors, (250), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:07:11,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 258 transitions. [2023-02-16 04:07:11,573 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 258 transitions. Word has length 165 [2023-02-16 04:07:11,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:11,573 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 258 transitions. [2023-02-16 04:07:11,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 7 states have internal predecessors, (35), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:11,574 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 258 transitions. [2023-02-16 04:07:11,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-02-16 04:07:11,575 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:11,575 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:11,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:11,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:11,782 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:11,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:11,782 INFO L85 PathProgramCache]: Analyzing trace with hash -644702791, now seen corresponding path program 2 times [2023-02-16 04:07:11,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:11,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1870985938] [2023-02-16 04:07:11,783 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 04:07:11,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:11,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:11,784 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:11,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-02-16 04:07:11,822 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-16 04:07:11,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:07:11,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:07:11,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:11,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1416 trivial. 0 not checked. [2023-02-16 04:07:11,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:11,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:11,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1870985938] [2023-02-16 04:07:11,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1870985938] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:11,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:11,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:07:11,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169583246] [2023-02-16 04:07:11,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:11,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:07:11,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:11,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:07:11,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:07:11,853 INFO L87 Difference]: Start difference. First operand 240 states and 258 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:11,959 INFO L93 Difference]: Finished difference Result 240 states and 258 transitions. [2023-02-16 04:07:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:07:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 169 [2023-02-16 04:07:11,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:11,966 INFO L225 Difference]: With dead ends: 240 [2023-02-16 04:07:11,966 INFO L226 Difference]: Without dead ends: 238 [2023-02-16 04:07:11,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:07:11,966 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 2 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:11,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 106 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:07:11,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-02-16 04:07:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-02-16 04:07:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 228 states have (on average 1.087719298245614) internal successors, (248), 230 states have internal predecessors, (248), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 04:07:11,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 256 transitions. [2023-02-16 04:07:11,993 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 256 transitions. Word has length 169 [2023-02-16 04:07:11,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:11,993 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 256 transitions. [2023-02-16 04:07:11,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:11,993 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 256 transitions. [2023-02-16 04:07:11,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-02-16 04:07:11,994 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:11,994 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:12,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:12,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:12,201 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:12,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:12,202 INFO L85 PathProgramCache]: Analyzing trace with hash 753038131, now seen corresponding path program 1 times [2023-02-16 04:07:12,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:12,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214451121] [2023-02-16 04:07:12,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:12,202 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:12,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:12,203 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:12,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-02-16 04:07:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:12,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-16 04:07:12,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:12,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-02-16 04:07:12,318 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:12,318 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:12,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214451121] [2023-02-16 04:07:12,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214451121] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:12,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:12,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-16 04:07:12,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842764289] [2023-02-16 04:07:12,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:12,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-16 04:07:12,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:12,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-16 04:07:12,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-16 04:07:12,321 INFO L87 Difference]: Start difference. First operand 238 states and 256 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:12,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:12,411 INFO L93 Difference]: Finished difference Result 313 states and 336 transitions. [2023-02-16 04:07:12,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-16 04:07:12,412 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 172 [2023-02-16 04:07:12,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:12,413 INFO L225 Difference]: With dead ends: 313 [2023-02-16 04:07:12,413 INFO L226 Difference]: Without dead ends: 291 [2023-02-16 04:07:12,413 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-16 04:07:12,414 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 74 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:12,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 461 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:07:12,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2023-02-16 04:07:12,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 245. [2023-02-16 04:07:12,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 233 states have (on average 1.0858369098712446) internal successors, (253), 235 states have internal predecessors, (253), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-16 04:07:12,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 266 transitions. [2023-02-16 04:07:12,446 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 266 transitions. Word has length 172 [2023-02-16 04:07:12,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:12,447 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 266 transitions. [2023-02-16 04:07:12,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 266 transitions. [2023-02-16 04:07:12,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-02-16 04:07:12,450 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:12,450 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:12,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:12,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:12,654 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:12,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:12,655 INFO L85 PathProgramCache]: Analyzing trace with hash 360011121, now seen corresponding path program 1 times [2023-02-16 04:07:12,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:12,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486632589] [2023-02-16 04:07:12,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:12,655 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:12,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:12,656 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:12,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-02-16 04:07:12,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:12,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-16 04:07:12,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-02-16 04:07:12,842 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:12,842 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:12,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486632589] [2023-02-16 04:07:12,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486632589] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:12,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:12,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-02-16 04:07:12,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684701021] [2023-02-16 04:07:12,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:12,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-16 04:07:12,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:12,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 04:07:12,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-02-16 04:07:12,843 INFO L87 Difference]: Start difference. First operand 245 states and 266 transitions. Second operand has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:13,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:13,095 INFO L93 Difference]: Finished difference Result 291 states and 313 transitions. [2023-02-16 04:07:13,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-16 04:07:13,095 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 172 [2023-02-16 04:07:13,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:13,096 INFO L225 Difference]: With dead ends: 291 [2023-02-16 04:07:13,096 INFO L226 Difference]: Without dead ends: 290 [2023-02-16 04:07:13,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2023-02-16 04:07:13,097 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 71 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:13,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 652 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:07:13,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-02-16 04:07:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2023-02-16 04:07:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 242 states have (on average 1.0826446280991735) internal successors, (262), 244 states have internal predecessors, (262), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-16 04:07:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 275 transitions. [2023-02-16 04:07:13,122 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 275 transitions. Word has length 172 [2023-02-16 04:07:13,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:13,122 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 275 transitions. [2023-02-16 04:07:13,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.111111111111111) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 275 transitions. [2023-02-16 04:07:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2023-02-16 04:07:13,124 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:13,124 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:13,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:13,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:13,331 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:13,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:13,331 INFO L85 PathProgramCache]: Analyzing trace with hash -770221667, now seen corresponding path program 1 times [2023-02-16 04:07:13,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:13,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1354548920] [2023-02-16 04:07:13,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:13,332 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:13,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:13,333 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:13,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-02-16 04:07:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:13,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-16 04:07:13,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:13,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-02-16 04:07:13,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:07:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2023-02-16 04:07:13,525 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:13,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1354548920] [2023-02-16 04:07:13,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1354548920] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-16 04:07:13,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-16 04:07:13,525 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-02-16 04:07:13,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691462342] [2023-02-16 04:07:13,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:13,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-16 04:07:13,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:07:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-02-16 04:07:13,526 INFO L87 Difference]: Start difference. First operand 254 states and 275 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:13,703 INFO L93 Difference]: Finished difference Result 258 states and 278 transitions. [2023-02-16 04:07:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:07:13,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 174 [2023-02-16 04:07:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:13,705 INFO L225 Difference]: With dead ends: 258 [2023-02-16 04:07:13,705 INFO L226 Difference]: Without dead ends: 256 [2023-02-16 04:07:13,705 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:07:13,705 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 13 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:13,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 178 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:07:13,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-02-16 04:07:13,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 243. [2023-02-16 04:07:13,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.0772532188841202) internal successors, (251), 233 states have internal predecessors, (251), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-16 04:07:13,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 264 transitions. [2023-02-16 04:07:13,735 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 264 transitions. Word has length 174 [2023-02-16 04:07:13,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:13,735 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 264 transitions. [2023-02-16 04:07:13,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:13,735 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 264 transitions. [2023-02-16 04:07:13,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2023-02-16 04:07:13,736 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:13,736 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:13,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-02-16 04:07:13,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:13,944 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:13,944 INFO L85 PathProgramCache]: Analyzing trace with hash 948465498, now seen corresponding path program 1 times [2023-02-16 04:07:13,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:13,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12584203] [2023-02-16 04:07:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:13,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:13,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:13,946 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:13,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-02-16 04:07:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:14,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-16 04:07:14,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-02-16 04:07:14,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:14,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:14,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12584203] [2023-02-16 04:07:14,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [12584203] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:14,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:14,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-02-16 04:07:14,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799990727] [2023-02-16 04:07:14,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:14,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-16 04:07:14,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:14,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-16 04:07:14,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2023-02-16 04:07:14,154 INFO L87 Difference]: Start difference. First operand 243 states and 264 transitions. Second operand has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:14,495 INFO L93 Difference]: Finished difference Result 285 states and 307 transitions. [2023-02-16 04:07:14,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-16 04:07:14,495 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 178 [2023-02-16 04:07:14,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:14,496 INFO L225 Difference]: With dead ends: 285 [2023-02-16 04:07:14,497 INFO L226 Difference]: Without dead ends: 263 [2023-02-16 04:07:14,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2023-02-16 04:07:14,497 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 45 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:14,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 610 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 04:07:14,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-02-16 04:07:14,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 241. [2023-02-16 04:07:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 231 states have (on average 1.077922077922078) internal successors, (249), 232 states have internal predecessors, (249), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-16 04:07:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2023-02-16 04:07:14,525 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 178 [2023-02-16 04:07:14,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:14,525 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2023-02-16 04:07:14,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.909090909090909) internal successors, (43), 10 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:14,526 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2023-02-16 04:07:14,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-02-16 04:07:14,526 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:14,527 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:14,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:14,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:14,735 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:14,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:14,736 INFO L85 PathProgramCache]: Analyzing trace with hash 606708358, now seen corresponding path program 1 times [2023-02-16 04:07:14,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:14,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [10728340] [2023-02-16 04:07:14,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:14,736 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:14,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:14,737 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:14,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-02-16 04:07:14,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:14,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-16 04:07:14,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:14,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-02-16 04:07:14,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:07:15,074 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:15,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [10728340] [2023-02-16 04:07:15,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [10728340] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:07:15,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [615236406] [2023-02-16 04:07:15,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:15,075 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-02-16 04:07:15,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-02-16 04:07:15,076 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-02-16 04:07:15,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-02-16 04:07:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:15,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-16 04:07:15,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-02-16 04:07:15,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:07:15,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-02-16 04:07:15,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [615236406] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:07:15,216 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:07:15,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 7 [2023-02-16 04:07:15,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210179751] [2023-02-16 04:07:15,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:07:15,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-16 04:07:15,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:15,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-16 04:07:15,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-02-16 04:07:15,217 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:15,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:15,299 INFO L93 Difference]: Finished difference Result 283 states and 304 transitions. [2023-02-16 04:07:15,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 04:07:15,300 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 180 [2023-02-16 04:07:15,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:15,301 INFO L225 Difference]: With dead ends: 283 [2023-02-16 04:07:15,301 INFO L226 Difference]: Without dead ends: 263 [2023-02-16 04:07:15,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 542 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2023-02-16 04:07:15,303 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 45 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:15,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 413 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 04:07:15,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-02-16 04:07:15,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 243. [2023-02-16 04:07:15,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.0772532188841202) internal successors, (251), 233 states have internal predecessors, (251), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-16 04:07:15,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 263 transitions. [2023-02-16 04:07:15,329 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 263 transitions. Word has length 180 [2023-02-16 04:07:15,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:15,329 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 263 transitions. [2023-02-16 04:07:15,329 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 04:07:15,329 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 263 transitions. [2023-02-16 04:07:15,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2023-02-16 04:07:15,330 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:15,330 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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] [2023-02-16 04:07:15,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-02-16 04:07:15,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:15,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:15,732 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:15,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:15,732 INFO L85 PathProgramCache]: Analyzing trace with hash -414359996, now seen corresponding path program 1 times [2023-02-16 04:07:15,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:15,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [263158472] [2023-02-16 04:07:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:15,733 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:15,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:15,734 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:15,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-02-16 04:07:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:15,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:07:15,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2023-02-16 04:07:15,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:15,833 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:15,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [263158472] [2023-02-16 04:07:15,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [263158472] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:15,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:15,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:07:15,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38873722] [2023-02-16 04:07:15,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:15,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:07:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:15,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:07:15,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:07:15,835 INFO L87 Difference]: Start difference. First operand 243 states and 263 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:15,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:15,920 INFO L93 Difference]: Finished difference Result 247 states and 266 transitions. [2023-02-16 04:07:15,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:07:15,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 180 [2023-02-16 04:07:15,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:15,921 INFO L225 Difference]: With dead ends: 247 [2023-02-16 04:07:15,921 INFO L226 Difference]: Without dead ends: 243 [2023-02-16 04:07:15,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:07:15,922 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 12 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:15,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 96 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:07:15,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2023-02-16 04:07:15,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2023-02-16 04:07:15,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 233 states have (on average 1.0729613733905579) internal successors, (250), 233 states have internal predecessors, (250), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 6 states have call predecessors, (7), 5 states have call successors, (7) [2023-02-16 04:07:15,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 262 transitions. [2023-02-16 04:07:15,948 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 262 transitions. Word has length 180 [2023-02-16 04:07:15,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:15,949 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 262 transitions. [2023-02-16 04:07:15,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:15,949 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 262 transitions. [2023-02-16 04:07:15,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-02-16 04:07:15,950 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 04:07:15,950 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 4, 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, 1, 1, 1] [2023-02-16 04:07:15,960 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:16,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:16,158 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2023-02-16 04:07:16,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:07:16,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1691487341, now seen corresponding path program 1 times [2023-02-16 04:07:16,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-16 04:07:16,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186899822] [2023-02-16 04:07:16,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:07:16,159 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:16,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-16 04:07:16,160 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-16 04:07:16,161 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-02-16 04:07:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:07:16,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:07:16,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:07:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 1418 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1418 trivial. 0 not checked. [2023-02-16 04:07:16,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 04:07:16,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-16 04:07:16,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186899822] [2023-02-16 04:07:16,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186899822] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:07:16,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:07:16,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:07:16,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649424420] [2023-02-16 04:07:16,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:07:16,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-16 04:07:16,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-16 04:07:16,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:07:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:07:16,270 INFO L87 Difference]: Start difference. First operand 243 states and 262 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:16,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:07:16,371 INFO L93 Difference]: Finished difference Result 243 states and 262 transitions. [2023-02-16 04:07:16,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:07:16,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 184 [2023-02-16 04:07:16,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 04:07:16,372 INFO L225 Difference]: With dead ends: 243 [2023-02-16 04:07:16,372 INFO L226 Difference]: Without dead ends: 0 [2023-02-16 04:07:16,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:07:16,373 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 9 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 04:07:16,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 135 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 04:07:16,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-16 04:07:16,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-16 04:07:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:07:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-16 04:07:16,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 184 [2023-02-16 04:07:16,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 04:07:16,373 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:07:16,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-16 04:07:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:07:16,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-16 04:07:16,385 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2023-02-16 04:07:16,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2023-02-16 04:07:16,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2023-02-16 04:07:16,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2023-02-16 04:07:16,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2023-02-16 04:07:16,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2023-02-16 04:07:16,386 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2023-02-16 04:07:16,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2023-02-16 04:07:16,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 18 remaining) [2023-02-16 04:07:16,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 18 remaining) [2023-02-16 04:07:16,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2023-02-16 04:07:16,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2023-02-16 04:07:16,387 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2023-02-16 04:07:16,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2023-02-16 04:07:16,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2023-02-16 04:07:16,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2023-02-16 04:07:16,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2023-02-16 04:07:16,389 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2023-02-16 04:07:16,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-02-16 04:07:16,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-16 04:07:16,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-16 04:07:21,775 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 385 DAG size of output: 31 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-02-16 04:07:36,756 WARN L233 SmtUtils]: Spent 14.97s on a formula simplification. DAG size of input: 501 DAG size of output: 49 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter)