./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_5a.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 f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 01:54:28,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 01:54:28,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 01:54:28,685 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 01:54:28,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 01:54:28,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 01:54:28,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 01:54:28,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 01:54:28,692 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 01:54:28,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 01:54:28,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 01:54:28,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 01:54:28,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 01:54:28,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 01:54:28,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 01:54:28,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 01:54:28,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 01:54:28,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 01:54:28,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 01:54:28,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 01:54:28,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 01:54:28,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 01:54:28,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 01:54:28,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 01:54:28,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 01:54:28,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 01:54:28,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 01:54:28,719 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 01:54:28,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 01:54:28,720 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 01:54:28,720 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 01:54:28,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 01:54:28,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 01:54:28,723 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 01:54:28,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 01:54:28,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 01:54:28,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 01:54:28,725 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 01:54:28,725 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 01:54:28,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 01:54:28,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 01:54:28,728 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 01:54:28,751 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 01:54:28,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 01:54:28,751 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 01:54:28,752 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 01:54:28,753 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 01:54:28,753 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 01:54:28,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 01:54:28,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 01:54:28,754 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 01:54:28,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 01:54:28,755 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 01:54:28,755 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 01:54:28,755 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 01:54:28,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 01:54:28,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 01:54:28,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 01:54:28,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 01:54:28,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 01:54:28,756 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 01:54:28,756 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 01:54:28,756 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 01:54:28,756 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 01:54:28,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 01:54:28,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 01:54:28,757 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 01:54:28,757 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 01:54:28,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:54:28,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 01:54:28,758 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 01:54:28,758 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 01:54:28,758 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 01:54:28,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 01:54:28,758 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 01:54:28,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 01:54:28,758 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 01:54:28,759 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 01:54:28,759 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 01:54:28,759 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2023-02-15 01:54:28,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 01:54:29,008 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 01:54:29,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 01:54:29,011 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 01:54:29,011 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 01:54:29,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 01:54:30,008 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 01:54:30,163 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 01:54:30,164 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 01:54:30,169 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18baad2e9/097cde9e653e4dd5a6df835a22ea5843/FLAG491e75a47 [2023-02-15 01:54:30,191 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18baad2e9/097cde9e653e4dd5a6df835a22ea5843 [2023-02-15 01:54:30,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 01:54:30,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 01:54:30,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 01:54:30,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 01:54:30,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 01:54:30,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68327a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30, skipping insertion in model container [2023-02-15 01:54:30,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 01:54:30,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:54:30,342 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_5a.c.cil.c[728,741] [2023-02-15 01:54:30,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:54:30,401 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 01:54:30,413 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_5a.c.cil.c[728,741] [2023-02-15 01:54:30,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:54:30,444 INFO L208 MainTranslator]: Completed translation [2023-02-15 01:54:30,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30 WrapperNode [2023-02-15 01:54:30,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 01:54:30,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 01:54:30,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 01:54:30,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 01:54:30,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,496 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 176 [2023-02-15 01:54:30,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 01:54:30,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 01:54:30,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 01:54:30,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 01:54:30,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,531 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,534 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 01:54:30,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 01:54:30,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 01:54:30,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 01:54:30,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (1/1) ... [2023-02-15 01:54:30,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:54:30,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:30,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 01:54:30,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 01:54:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 01:54:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 01:54:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-15 01:54:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-15 01:54:30,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 01:54:30,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 01:54:30,603 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 01:54:30,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 01:54:30,654 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 01:54:30,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 01:54:30,975 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 01:54:30,981 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 01:54:30,982 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 01:54:30,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:54:30 BoogieIcfgContainer [2023-02-15 01:54:30,985 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 01:54:30,986 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 01:54:30,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 01:54:30,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 01:54:30,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:54:30" (1/3) ... [2023-02-15 01:54:30,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c084a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:54:30, skipping insertion in model container [2023-02-15 01:54:30,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:30" (2/3) ... [2023-02-15 01:54:30,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c084a5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:54:30, skipping insertion in model container [2023-02-15 01:54:30,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:54:30" (3/3) ... [2023-02-15 01:54:30,991 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2023-02-15 01:54:31,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 01:54:31,003 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-02-15 01:54:31,035 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 01:54:31,039 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;@6ebbe8cd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 01:54:31,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-02-15 01:54:31,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 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) [2023-02-15 01:54:31,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 01:54:31,048 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:31,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:31,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:31,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:31,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1819356335, now seen corresponding path program 1 times [2023-02-15 01:54:31,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:31,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033372237] [2023-02-15 01:54:31,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:31,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:31,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:31,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:31,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:31,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033372237] [2023-02-15 01:54:31,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033372237] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:31,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:31,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:31,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092242506] [2023-02-15 01:54:31,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:31,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:54:31,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:31,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:54:31,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 01:54:31,305 INFO L87 Difference]: Start difference. First operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 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) [2023-02-15 01:54:31,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:31,410 INFO L93 Difference]: Finished difference Result 257 states and 376 transitions. [2023-02-15 01:54:31,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:54:31,414 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 [2023-02-15 01:54:31,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:31,422 INFO L225 Difference]: With dead ends: 257 [2023-02-15 01:54:31,422 INFO L226 Difference]: Without dead ends: 130 [2023-02-15 01:54:31,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:31,429 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 83 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:31,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 370 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:31,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-02-15 01:54:31,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 120. [2023-02-15 01:54:31,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.52) internal successors, (152), 113 states have internal predecessors, (152), 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) [2023-02-15 01:54:31,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2023-02-15 01:54:31,480 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 9 [2023-02-15 01:54:31,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:31,481 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2023-02-15 01:54:31,482 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) [2023-02-15 01:54:31,482 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2023-02-15 01:54:31,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 01:54:31,483 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:31,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:31,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 01:54:31,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:31,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:31,487 INFO L85 PathProgramCache]: Analyzing trace with hash -179612527, now seen corresponding path program 1 times [2023-02-15 01:54:31,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:31,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384808154] [2023-02-15 01:54:31,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:31,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:31,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:31,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384808154] [2023-02-15 01:54:31,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384808154] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:31,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:31,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:54:31,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826379839] [2023-02-15 01:54:31,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:31,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:54:31,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:31,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:54:31,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:31,642 INFO L87 Difference]: Start difference. First operand 120 states and 160 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) [2023-02-15 01:54:31,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:31,754 INFO L93 Difference]: Finished difference Result 265 states and 354 transitions. [2023-02-15 01:54:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:54:31,755 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 [2023-02-15 01:54:31,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:31,756 INFO L225 Difference]: With dead ends: 265 [2023-02-15 01:54:31,758 INFO L226 Difference]: Without dead ends: 148 [2023-02-15 01:54:31,759 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 [2023-02-15 01:54:31,762 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 128 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 343 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 [2023-02-15 01:54:31,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 343 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:31,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-02-15 01:54:31,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 129. [2023-02-15 01:54:31,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.5045871559633028) internal successors, (164), 122 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) [2023-02-15 01:54:31,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2023-02-15 01:54:31,774 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 172 transitions. Word has length 14 [2023-02-15 01:54:31,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:31,775 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 172 transitions. [2023-02-15 01:54:31,775 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) [2023-02-15 01:54:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 172 transitions. [2023-02-15 01:54:31,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 01:54:31,776 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:31,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:31,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 01:54:31,780 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:31,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:31,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1273020929, now seen corresponding path program 1 times [2023-02-15 01:54:31,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:31,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949016114] [2023-02-15 01:54:31,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:31,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:31,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:31,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:31,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949016114] [2023-02-15 01:54:31,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949016114] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:31,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:31,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:54:31,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987712129] [2023-02-15 01:54:31,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:31,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:54:31,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:31,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:54:31,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:31,845 INFO L87 Difference]: Start difference. First operand 129 states and 172 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) [2023-02-15 01:54:31,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:31,916 INFO L93 Difference]: Finished difference Result 156 states and 201 transitions. [2023-02-15 01:54:31,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:54:31,916 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 [2023-02-15 01:54:31,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:31,917 INFO L225 Difference]: With dead ends: 156 [2023-02-15 01:54:31,918 INFO L226 Difference]: Without dead ends: 154 [2023-02-15 01:54:31,918 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 [2023-02-15 01:54:31,919 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 112 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 355 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 [2023-02-15 01:54:31,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 355 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:31,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-15 01:54:31,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 129. [2023-02-15 01:54:31,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 122 states have internal predecessors, (162), 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) [2023-02-15 01:54:31,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 170 transitions. [2023-02-15 01:54:31,927 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 170 transitions. Word has length 15 [2023-02-15 01:54:31,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:31,928 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 170 transitions. [2023-02-15 01:54:31,928 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) [2023-02-15 01:54:31,928 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 170 transitions. [2023-02-15 01:54:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 01:54:31,929 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:31,929 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:31,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 01:54:31,929 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:31,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:31,930 INFO L85 PathProgramCache]: Analyzing trace with hash 550260128, now seen corresponding path program 1 times [2023-02-15 01:54:31,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:31,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373669805] [2023-02-15 01:54:31,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:31,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:31,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 01:54:31,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:31,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373669805] [2023-02-15 01:54:31,986 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373669805] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:31,986 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:31,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 01:54:31,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971951549] [2023-02-15 01:54:31,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:31,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:54:31,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:31,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:54:31,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:31,988 INFO L87 Difference]: Start difference. First operand 129 states and 170 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) [2023-02-15 01:54:32,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:32,008 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2023-02-15 01:54:32,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:54:32,009 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 [2023-02-15 01:54:32,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:32,010 INFO L225 Difference]: With dead ends: 137 [2023-02-15 01:54:32,010 INFO L226 Difference]: Without dead ends: 136 [2023-02-15 01:54:32,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:54:32,011 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 188 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 [2023-02-15 01:54:32,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:32,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-02-15 01:54:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 126. [2023-02-15 01:54:32,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 107 states have (on average 1.4766355140186915) internal successors, (158), 119 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) [2023-02-15 01:54:32,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 166 transitions. [2023-02-15 01:54:32,017 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 166 transitions. Word has length 16 [2023-02-15 01:54:32,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:32,018 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 166 transitions. [2023-02-15 01:54:32,018 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) [2023-02-15 01:54:32,018 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 166 transitions. [2023-02-15 01:54:32,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 01:54:32,019 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:32,019 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:32,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 01:54:32,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:32,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:32,020 INFO L85 PathProgramCache]: Analyzing trace with hash -119643288, now seen corresponding path program 1 times [2023-02-15 01:54:32,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:32,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029599827] [2023-02-15 01:54:32,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:32,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:32,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:32,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029599827] [2023-02-15 01:54:32,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029599827] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:32,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903653668] [2023-02-15 01:54:32,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:32,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:32,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:32,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:32,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 01:54:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 01:54:32,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:32,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:54:32,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:54:32,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903653668] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:32,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:54:32,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-02-15 01:54:32,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95092353] [2023-02-15 01:54:32,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:32,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:54:32,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:32,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:54:32,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 01:54:32,226 INFO L87 Difference]: Start difference. First operand 126 states and 166 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) [2023-02-15 01:54:32,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:32,288 INFO L93 Difference]: Finished difference Result 155 states and 207 transitions. [2023-02-15 01:54:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:54:32,289 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 [2023-02-15 01:54:32,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:32,290 INFO L225 Difference]: With dead ends: 155 [2023-02-15 01:54:32,291 INFO L226 Difference]: Without dead ends: 154 [2023-02-15 01:54:32,291 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 [2023-02-15 01:54:32,292 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 16 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 299 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 [2023-02-15 01:54:32,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 299 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:32,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-15 01:54:32,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 128. [2023-02-15 01:54:32,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 121 states have internal predecessors, (161), 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) [2023-02-15 01:54:32,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 169 transitions. [2023-02-15 01:54:32,312 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 169 transitions. Word has length 17 [2023-02-15 01:54:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:32,312 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 169 transitions. [2023-02-15 01:54:32,312 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) [2023-02-15 01:54:32,313 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 169 transitions. [2023-02-15 01:54:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 01:54:32,315 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:32,315 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:32,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:32,519 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 [2023-02-15 01:54:32,520 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:32,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:32,521 INFO L85 PathProgramCache]: Analyzing trace with hash -171865727, now seen corresponding path program 1 times [2023-02-15 01:54:32,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:32,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977103705] [2023-02-15 01:54:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:32,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:32,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,556 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 01:54:32,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:32,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977103705] [2023-02-15 01:54:32,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977103705] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:32,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:32,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:54:32,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808566331] [2023-02-15 01:54:32,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:32,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:54:32,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:32,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:54:32,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 01:54:32,557 INFO L87 Difference]: Start difference. First operand 128 states and 169 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) [2023-02-15 01:54:32,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:32,598 INFO L93 Difference]: Finished difference Result 161 states and 215 transitions. [2023-02-15 01:54:32,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:54:32,598 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 [2023-02-15 01:54:32,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:32,601 INFO L225 Difference]: With dead ends: 161 [2023-02-15 01:54:32,602 INFO L226 Difference]: Without dead ends: 159 [2023-02-15 01:54:32,607 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 [2023-02-15 01:54:32,612 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 22 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:32,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 201 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:32,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-02-15 01:54:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 130. [2023-02-15 01:54:32,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 123 states have internal predecessors, (163), 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) [2023-02-15 01:54:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 171 transitions. [2023-02-15 01:54:32,627 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 171 transitions. Word has length 19 [2023-02-15 01:54:32,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:32,627 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 171 transitions. [2023-02-15 01:54:32,627 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) [2023-02-15 01:54:32,627 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 171 transitions. [2023-02-15 01:54:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 01:54:32,631 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:32,631 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:32,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 01:54:32,631 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:32,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:32,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1906214428, now seen corresponding path program 1 times [2023-02-15 01:54:32,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:32,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714125781] [2023-02-15 01:54:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:32,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:32,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,710 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 01:54:32,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:32,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714125781] [2023-02-15 01:54:32,711 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714125781] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:32,711 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:32,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:54:32,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407262232] [2023-02-15 01:54:32,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:32,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:54:32,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:32,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:54:32,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:32,713 INFO L87 Difference]: Start difference. First operand 130 states and 171 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) [2023-02-15 01:54:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:32,770 INFO L93 Difference]: Finished difference Result 193 states and 257 transitions. [2023-02-15 01:54:32,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:54:32,771 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 [2023-02-15 01:54:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:32,772 INFO L225 Difference]: With dead ends: 193 [2023-02-15 01:54:32,772 INFO L226 Difference]: Without dead ends: 191 [2023-02-15 01:54:32,772 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 [2023-02-15 01:54:32,789 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 130 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 277 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 [2023-02-15 01:54:32,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 277 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:32,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-02-15 01:54:32,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 161. [2023-02-15 01:54:32,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.4647887323943662) internal successors, (208), 153 states have internal predecessors, (208), 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) [2023-02-15 01:54:32,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2023-02-15 01:54:32,797 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 24 [2023-02-15 01:54:32,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:32,798 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2023-02-15 01:54:32,798 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) [2023-02-15 01:54:32,798 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2023-02-15 01:54:32,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 01:54:32,799 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:32,799 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:32,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 01:54:32,799 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:32,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:32,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1934841784, now seen corresponding path program 1 times [2023-02-15 01:54:32,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:32,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818993229] [2023-02-15 01:54:32,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:32,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:32,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:32,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 01:54:32,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:32,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818993229] [2023-02-15 01:54:32,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818993229] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:32,839 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:32,839 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:54:32,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207944637] [2023-02-15 01:54:32,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:32,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:54:32,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:32,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:54:32,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:32,840 INFO L87 Difference]: Start difference. First operand 161 states and 216 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) [2023-02-15 01:54:32,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:32,894 INFO L93 Difference]: Finished difference Result 185 states and 245 transitions. [2023-02-15 01:54:32,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:54:32,895 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 [2023-02-15 01:54:32,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:32,896 INFO L225 Difference]: With dead ends: 185 [2023-02-15 01:54:32,896 INFO L226 Difference]: Without dead ends: 183 [2023-02-15 01:54:32,896 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 [2023-02-15 01:54:32,897 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 277 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 [2023-02-15 01:54:32,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 277 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:32,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-02-15 01:54:32,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 154. [2023-02-15 01:54:32,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.451851851851852) internal successors, (196), 146 states have internal predecessors, (196), 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) [2023-02-15 01:54:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2023-02-15 01:54:32,916 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 24 [2023-02-15 01:54:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:32,918 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2023-02-15 01:54:32,918 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) [2023-02-15 01:54:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2023-02-15 01:54:32,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 01:54:32,919 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:32,920 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] [2023-02-15 01:54:32,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 01:54:32,920 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:32,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -735396699, now seen corresponding path program 1 times [2023-02-15 01:54:32,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:32,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797434770] [2023-02-15 01:54:32,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:32,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:32,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 01:54:32,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 01:54:32,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:32,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797434770] [2023-02-15 01:54:32,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797434770] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:32,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:32,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:54:32,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386851447] [2023-02-15 01:54:32,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:32,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:54:32,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:54:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:32,985 INFO L87 Difference]: Start difference. First operand 154 states and 204 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) [2023-02-15 01:54:33,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:33,044 INFO L93 Difference]: Finished difference Result 178 states and 236 transitions. [2023-02-15 01:54:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:54:33,045 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 [2023-02-15 01:54:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:33,046 INFO L225 Difference]: With dead ends: 178 [2023-02-15 01:54:33,046 INFO L226 Difference]: Without dead ends: 176 [2023-02-15 01:54:33,046 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 [2023-02-15 01:54:33,047 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 128 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 270 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 [2023-02-15 01:54:33,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 270 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-02-15 01:54:33,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2023-02-15 01:54:33,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 140 states have internal predecessors, (187), 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) [2023-02-15 01:54:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-02-15 01:54:33,053 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 31 [2023-02-15 01:54:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:33,053 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-02-15 01:54:33,053 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) [2023-02-15 01:54:33,053 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-02-15 01:54:33,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 01:54:33,054 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:33,054 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] [2023-02-15 01:54:33,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 01:54:33,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:33,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:33,055 INFO L85 PathProgramCache]: Analyzing trace with hash -764024055, now seen corresponding path program 1 times [2023-02-15 01:54:33,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:33,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592722534] [2023-02-15 01:54:33,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:33,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 01:54:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,093 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 01:54:33,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:33,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592722534] [2023-02-15 01:54:33,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592722534] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:33,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:33,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:54:33,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162820529] [2023-02-15 01:54:33,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:33,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:54:33,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:33,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:54:33,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:54:33,095 INFO L87 Difference]: Start difference. First operand 148 states and 195 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) [2023-02-15 01:54:33,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:33,152 INFO L93 Difference]: Finished difference Result 170 states and 224 transitions. [2023-02-15 01:54:33,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:54:33,153 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 [2023-02-15 01:54:33,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:33,154 INFO L225 Difference]: With dead ends: 170 [2023-02-15 01:54:33,154 INFO L226 Difference]: Without dead ends: 168 [2023-02-15 01:54:33,154 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 [2023-02-15 01:54:33,154 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 129 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 268 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 [2023-02-15 01:54:33,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 268 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:33,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-02-15 01:54:33,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 139. [2023-02-15 01:54:33,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 131 states have internal predecessors, (175), 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) [2023-02-15 01:54:33,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2023-02-15 01:54:33,164 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 31 [2023-02-15 01:54:33,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:33,164 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2023-02-15 01:54:33,164 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) [2023-02-15 01:54:33,165 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2023-02-15 01:54:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 01:54:33,165 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:33,165 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, 1, 1] [2023-02-15 01:54:33,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-15 01:54:33,167 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:33,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:33,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1822749775, now seen corresponding path program 1 times [2023-02-15 01:54:33,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:33,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68292551] [2023-02-15 01:54:33,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:33,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:33,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 01:54:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 01:54:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,262 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-15 01:54:33,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:33,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68292551] [2023-02-15 01:54:33,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68292551] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:33,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328779719] [2023-02-15 01:54:33,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:33,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:33,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:33,267 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:33,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 01:54:33,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:33,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-15 01:54:33,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:33,365 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 01:54:33,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:33,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328779719] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:33,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:33,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2023-02-15 01:54:33,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196624985] [2023-02-15 01:54:33,480 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:33,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 01:54:33,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:33,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 01:54:33,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-02-15 01:54:33,483 INFO L87 Difference]: Start difference. First operand 139 states and 183 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) [2023-02-15 01:54:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:33,827 INFO L93 Difference]: Finished difference Result 454 states and 581 transitions. [2023-02-15 01:54:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-15 01:54:33,828 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 37 [2023-02-15 01:54:33,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:33,829 INFO L225 Difference]: With dead ends: 454 [2023-02-15 01:54:33,829 INFO L226 Difference]: Without dead ends: 275 [2023-02-15 01:54:33,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2023-02-15 01:54:33,830 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 274 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:33,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 937 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 01:54:33,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-02-15 01:54:33,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 140. [2023-02-15 01:54:33,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 131 states have internal predecessors, (169), 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) [2023-02-15 01:54:33,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2023-02-15 01:54:33,837 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 37 [2023-02-15 01:54:33,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:33,838 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2023-02-15 01:54:33,838 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) [2023-02-15 01:54:33,838 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2023-02-15 01:54:33,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-15 01:54:33,839 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:33,839 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:33,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 01:54:34,043 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 [2023-02-15 01:54:34,044 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:34,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:34,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1347360979, now seen corresponding path program 1 times [2023-02-15 01:54:34,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:34,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836503141] [2023-02-15 01:54:34,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:34,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 01:54:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 01:54:34,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 01:54:34,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:34,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836503141] [2023-02-15 01:54:34,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836503141] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:34,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:34,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 01:54:34,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869972922] [2023-02-15 01:54:34,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:34,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 01:54:34,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:34,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 01:54:34,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 01:54:34,142 INFO L87 Difference]: Start difference. First operand 140 states and 177 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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) [2023-02-15 01:54:34,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:34,221 INFO L93 Difference]: Finished difference Result 266 states and 315 transitions. [2023-02-15 01:54:34,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 01:54:34,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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 54 [2023-02-15 01:54:34,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:34,222 INFO L225 Difference]: With dead ends: 266 [2023-02-15 01:54:34,222 INFO L226 Difference]: Without dead ends: 214 [2023-02-15 01:54:34,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 01:54:34,223 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 108 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:34,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 572 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:34,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-02-15 01:54:34,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 140. [2023-02-15 01:54:34,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.346774193548387) internal successors, (167), 131 states have internal predecessors, (167), 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) [2023-02-15 01:54:34,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 175 transitions. [2023-02-15 01:54:34,230 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 175 transitions. Word has length 54 [2023-02-15 01:54:34,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:34,230 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 175 transitions. [2023-02-15 01:54:34,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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) [2023-02-15 01:54:34,230 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 175 transitions. [2023-02-15 01:54:34,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 01:54:34,231 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:34,231 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, 1, 1] [2023-02-15 01:54:34,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-15 01:54:34,231 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:34,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:34,232 INFO L85 PathProgramCache]: Analyzing trace with hash 264007364, now seen corresponding path program 2 times [2023-02-15 01:54:34,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:34,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223935436] [2023-02-15 01:54:34,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:34,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:34,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 01:54:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 01:54:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,332 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:54:34,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:34,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223935436] [2023-02-15 01:54:34,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223935436] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:34,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:34,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 01:54:34,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581079565] [2023-02-15 01:54:34,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:34,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 01:54:34,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:34,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 01:54:34,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 01:54:34,335 INFO L87 Difference]: Start difference. First operand 140 states and 175 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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) [2023-02-15 01:54:34,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:34,433 INFO L93 Difference]: Finished difference Result 262 states and 313 transitions. [2023-02-15 01:54:34,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 01:54:34,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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 58 [2023-02-15 01:54:34,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:34,435 INFO L225 Difference]: With dead ends: 262 [2023-02-15 01:54:34,435 INFO L226 Difference]: Without dead ends: 226 [2023-02-15 01:54:34,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 01:54:34,436 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 160 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:34,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 679 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:34,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-02-15 01:54:34,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 165. [2023-02-15 01:54:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 148 states have (on average 1.337837837837838) internal successors, (198), 155 states have internal predecessors, (198), 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) [2023-02-15 01:54:34,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 207 transitions. [2023-02-15 01:54:34,443 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 207 transitions. Word has length 58 [2023-02-15 01:54:34,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:34,444 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 207 transitions. [2023-02-15 01:54:34,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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) [2023-02-15 01:54:34,444 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 207 transitions. [2023-02-15 01:54:34,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 01:54:34,445 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:34,445 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, 1, 1] [2023-02-15 01:54:34,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-15 01:54:34,445 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:34,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:34,446 INFO L85 PathProgramCache]: Analyzing trace with hash 264009286, now seen corresponding path program 1 times [2023-02-15 01:54:34,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:34,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381713816] [2023-02-15 01:54:34,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:34,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 01:54:34,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 01:54:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,571 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 01:54:34,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:34,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381713816] [2023-02-15 01:54:34,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1381713816] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:34,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949701124] [2023-02-15 01:54:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:34,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:34,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:34,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:34,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 01:54:34,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:34,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 01:54:34,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:34,731 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-15 01:54:34,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:54:34,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949701124] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:34,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:54:34,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2023-02-15 01:54:34,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964589663] [2023-02-15 01:54:34,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:34,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 01:54:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:34,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 01:54:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-02-15 01:54:34,733 INFO L87 Difference]: Start difference. First operand 165 states and 207 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 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) [2023-02-15 01:54:34,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:34,819 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2023-02-15 01:54:34,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 01:54:34,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 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 58 [2023-02-15 01:54:34,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:34,821 INFO L225 Difference]: With dead ends: 306 [2023-02-15 01:54:34,821 INFO L226 Difference]: Without dead ends: 254 [2023-02-15 01:54:34,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-02-15 01:54:34,822 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 166 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:34,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 599 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:34,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-02-15 01:54:34,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 187. [2023-02-15 01:54:34,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 175 states have internal predecessors, (220), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-15 01:54:34,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 233 transitions. [2023-02-15 01:54:34,830 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 233 transitions. Word has length 58 [2023-02-15 01:54:34,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:34,830 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 233 transitions. [2023-02-15 01:54:34,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 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) [2023-02-15 01:54:34,830 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 233 transitions. [2023-02-15 01:54:34,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 01:54:34,831 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:34,831 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, 1, 1] [2023-02-15 01:54:34,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:35,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:35,032 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:35,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:35,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1694284065, now seen corresponding path program 1 times [2023-02-15 01:54:35,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:35,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689251677] [2023-02-15 01:54:35,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:35,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 01:54:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 01:54:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,198 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-02-15 01:54:35,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:35,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689251677] [2023-02-15 01:54:35,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689251677] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:35,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:54:35,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-15 01:54:35,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420030014] [2023-02-15 01:54:35,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:35,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 01:54:35,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:35,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 01:54:35,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-02-15 01:54:35,201 INFO L87 Difference]: Start difference. First operand 187 states and 233 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 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) [2023-02-15 01:54:35,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:35,372 INFO L93 Difference]: Finished difference Result 432 states and 508 transitions. [2023-02-15 01:54:35,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 01:54:35,372 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 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 63 [2023-02-15 01:54:35,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:35,374 INFO L225 Difference]: With dead ends: 432 [2023-02-15 01:54:35,374 INFO L226 Difference]: Without dead ends: 398 [2023-02-15 01:54:35,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-02-15 01:54:35,375 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 357 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:35,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 607 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:35,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-02-15 01:54:35,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 211. [2023-02-15 01:54:35,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 01:54:35,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 267 transitions. [2023-02-15 01:54:35,387 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 267 transitions. Word has length 63 [2023-02-15 01:54:35,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:35,387 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 267 transitions. [2023-02-15 01:54:35,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 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) [2023-02-15 01:54:35,388 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 267 transitions. [2023-02-15 01:54:35,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 01:54:35,388 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:35,388 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, 1, 1] [2023-02-15 01:54:35,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-15 01:54:35,389 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:35,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:35,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1694282143, now seen corresponding path program 1 times [2023-02-15 01:54:35,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:35,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660381385] [2023-02-15 01:54:35,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:35,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 01:54:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 01:54:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,496 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:35,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:35,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660381385] [2023-02-15 01:54:35,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660381385] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:35,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069176409] [2023-02-15 01:54:35,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:35,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:35,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:35,514 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:35,515 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 01:54:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:35,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 01:54:35,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-02-15 01:54:35,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-02-15 01:54:35,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069176409] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:35,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:35,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 14 [2023-02-15 01:54:35,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539200922] [2023-02-15 01:54:35,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:35,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 01:54:35,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:35,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 01:54:35,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-02-15 01:54:35,746 INFO L87 Difference]: Start difference. First operand 211 states and 267 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-15 01:54:36,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:36,075 INFO L93 Difference]: Finished difference Result 455 states and 577 transitions. [2023-02-15 01:54:36,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 01:54:36,075 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 63 [2023-02-15 01:54:36,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:36,076 INFO L225 Difference]: With dead ends: 455 [2023-02-15 01:54:36,077 INFO L226 Difference]: Without dead ends: 275 [2023-02-15 01:54:36,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-02-15 01:54:36,078 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 226 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:36,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 659 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:36,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-02-15 01:54:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 204. [2023-02-15 01:54:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 184 states have (on average 1.2880434782608696) internal successors, (237), 191 states have internal predecessors, (237), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 01:54:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 252 transitions. [2023-02-15 01:54:36,088 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 252 transitions. Word has length 63 [2023-02-15 01:54:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:36,088 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 252 transitions. [2023-02-15 01:54:36,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-15 01:54:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 252 transitions. [2023-02-15 01:54:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-02-15 01:54:36,089 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:36,089 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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, 1, 1, 1] [2023-02-15 01:54:36,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-15 01:54:36,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 01:54:36,294 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:36,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:36,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1797395163, now seen corresponding path program 1 times [2023-02-15 01:54:36,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:36,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194895914] [2023-02-15 01:54:36,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:36,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:36,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:36,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:36,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:36,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-02-15 01:54:36,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:36,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-02-15 01:54:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:36,370 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:36,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:36,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194895914] [2023-02-15 01:54:36,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194895914] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:36,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386074604] [2023-02-15 01:54:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:36,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:36,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:36,372 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:36,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 01:54:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:36,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 01:54:36,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 01:54:36,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:36,579 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:36,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1386074604] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:36,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:36,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-02-15 01:54:36,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936305338] [2023-02-15 01:54:36,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:36,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 01:54:36,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:36,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 01:54:36,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-02-15 01:54:36,581 INFO L87 Difference]: Start difference. First operand 204 states and 252 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 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) [2023-02-15 01:54:36,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:36,800 INFO L93 Difference]: Finished difference Result 708 states and 905 transitions. [2023-02-15 01:54:36,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 01:54:36,801 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 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 66 [2023-02-15 01:54:36,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:36,802 INFO L225 Difference]: With dead ends: 708 [2023-02-15 01:54:36,803 INFO L226 Difference]: Without dead ends: 532 [2023-02-15 01:54:36,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2023-02-15 01:54:36,804 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 221 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:36,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 557 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:36,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-02-15 01:54:36,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 231. [2023-02-15 01:54:36,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 211 states have (on average 1.2843601895734598) internal successors, (271), 218 states have internal predecessors, (271), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 01:54:36,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 286 transitions. [2023-02-15 01:54:36,822 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 286 transitions. Word has length 66 [2023-02-15 01:54:36,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:36,822 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 286 transitions. [2023-02-15 01:54:36,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 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) [2023-02-15 01:54:36,822 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 286 transitions. [2023-02-15 01:54:36,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-15 01:54:36,823 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:36,823 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:54:36,830 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:37,028 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,SelfDestructingSolverStorable16 [2023-02-15 01:54:37,029 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:37,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:37,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1155393431, now seen corresponding path program 1 times [2023-02-15 01:54:37,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:37,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702248182] [2023-02-15 01:54:37,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:37,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:37,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:37,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-02-15 01:54:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-15 01:54:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:37,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:37,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702248182] [2023-02-15 01:54:37,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702248182] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:37,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [801680111] [2023-02-15 01:54:37,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:37,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:37,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:37,173 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:37,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 01:54:37,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 01:54:37,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:37,295 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 01:54:37,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:37,386 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:37,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [801680111] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:37,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:37,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-02-15 01:54:37,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768483730] [2023-02-15 01:54:37,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:37,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 01:54:37,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:37,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 01:54:37,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-15 01:54:37,389 INFO L87 Difference]: Start difference. First operand 231 states and 286 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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) [2023-02-15 01:54:37,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:37,695 INFO L93 Difference]: Finished difference Result 547 states and 690 transitions. [2023-02-15 01:54:37,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 01:54:37,696 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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 70 [2023-02-15 01:54:37,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:37,697 INFO L225 Difference]: With dead ends: 547 [2023-02-15 01:54:37,697 INFO L226 Difference]: Without dead ends: 357 [2023-02-15 01:54:37,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2023-02-15 01:54:37,698 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 168 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:37,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 359 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:37,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-02-15 01:54:37,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 224. [2023-02-15 01:54:37,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.2598039215686274) internal successors, (257), 211 states have internal predecessors, (257), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 01:54:37,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2023-02-15 01:54:37,710 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 70 [2023-02-15 01:54:37,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:37,711 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2023-02-15 01:54:37,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 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) [2023-02-15 01:54:37,711 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2023-02-15 01:54:37,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-15 01:54:37,712 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:37,712 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, 1, 1, 1, 1] [2023-02-15 01:54:37,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:37,917 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,SelfDestructingSolverStorable17 [2023-02-15 01:54:37,917 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:37,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:37,918 INFO L85 PathProgramCache]: Analyzing trace with hash 216023387, now seen corresponding path program 2 times [2023-02-15 01:54:37,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:37,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576843571] [2023-02-15 01:54:37,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:37,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:37,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:38,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-15 01:54:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:38,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-02-15 01:54:38,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:38,062 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:38,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:38,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576843571] [2023-02-15 01:54:38,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576843571] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:38,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279600771] [2023-02-15 01:54:38,063 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:54:38,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:38,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:38,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:38,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 01:54:38,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 01:54:38,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:54:38,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 01:54:38,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:38,225 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 01:54:38,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:38,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279600771] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:38,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:38,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-02-15 01:54:38,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825990402] [2023-02-15 01:54:38,422 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:38,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 01:54:38,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:38,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 01:54:38,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2023-02-15 01:54:38,423 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 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) [2023-02-15 01:54:38,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:38,784 INFO L93 Difference]: Finished difference Result 1080 states and 1393 transitions. [2023-02-15 01:54:38,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-15 01:54:38,785 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 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 86 [2023-02-15 01:54:38,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:38,788 INFO L225 Difference]: With dead ends: 1080 [2023-02-15 01:54:38,788 INFO L226 Difference]: Without dead ends: 904 [2023-02-15 01:54:38,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 01:54:38,789 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 621 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:38,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 704 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 01:54:38,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-02-15 01:54:38,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 271. [2023-02-15 01:54:38,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 251 states have (on average 1.254980079681275) internal successors, (315), 258 states have internal predecessors, (315), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 01:54:38,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 330 transitions. [2023-02-15 01:54:38,807 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 330 transitions. Word has length 86 [2023-02-15 01:54:38,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:38,807 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 330 transitions. [2023-02-15 01:54:38,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 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) [2023-02-15 01:54:38,808 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 330 transitions. [2023-02-15 01:54:38,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 01:54:38,808 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:38,809 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, 1, 1, 1, 1] [2023-02-15 01:54:38,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 01:54:39,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:39,014 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:39,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:39,014 INFO L85 PathProgramCache]: Analyzing trace with hash -584775959, now seen corresponding path program 2 times [2023-02-15 01:54:39,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:39,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107927475] [2023-02-15 01:54:39,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:39,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:39,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 01:54:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 01:54:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:39,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:39,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107927475] [2023-02-15 01:54:39,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107927475] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:39,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591431329] [2023-02-15 01:54:39,232 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:54:39,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:39,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:39,249 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:54:39,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 01:54:39,380 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 01:54:39,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:54:39,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 01:54:39,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:39,671 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-02-15 01:54:39,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:54:39,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591431329] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:39,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:54:39,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 21 [2023-02-15 01:54:39,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736181273] [2023-02-15 01:54:39,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:39,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 01:54:39,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:39,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 01:54:39,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-02-15 01:54:39,672 INFO L87 Difference]: Start difference. First operand 271 states and 330 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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) [2023-02-15 01:54:40,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:40,174 INFO L93 Difference]: Finished difference Result 561 states and 654 transitions. [2023-02-15 01:54:40,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 01:54:40,174 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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 90 [2023-02-15 01:54:40,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:40,176 INFO L225 Difference]: With dead ends: 561 [2023-02-15 01:54:40,176 INFO L226 Difference]: Without dead ends: 527 [2023-02-15 01:54:40,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2023-02-15 01:54:40,177 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 496 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:40,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1206 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 01:54:40,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-02-15 01:54:40,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 302. [2023-02-15 01:54:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 281 states have (on average 1.2633451957295374) internal successors, (355), 288 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 01:54:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2023-02-15 01:54:40,194 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 90 [2023-02-15 01:54:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:40,194 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2023-02-15 01:54:40,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 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) [2023-02-15 01:54:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2023-02-15 01:54:40,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 01:54:40,195 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:40,195 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, 1, 1, 1, 1] [2023-02-15 01:54:40,213 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:40,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:40,402 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:40,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:40,403 INFO L85 PathProgramCache]: Analyzing trace with hash -527519579, now seen corresponding path program 1 times [2023-02-15 01:54:40,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:40,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513676819] [2023-02-15 01:54:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:40,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:40,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:40,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 01:54:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 01:54:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,498 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 01:54:40,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:40,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513676819] [2023-02-15 01:54:40,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513676819] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:40,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272952360] [2023-02-15 01:54:40,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:40,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:40,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:40,513 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) [2023-02-15 01:54:40,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 01:54:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:40,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 01:54:40,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:40,584 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 01:54:40,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:40,658 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 01:54:40,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272952360] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:40,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:40,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-15 01:54:40,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210458687] [2023-02-15 01:54:40,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:40,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 01:54:40,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:40,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 01:54:40,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-02-15 01:54:40,660 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 01:54:40,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:40,726 INFO L93 Difference]: Finished difference Result 480 states and 586 transitions. [2023-02-15 01:54:40,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 01:54:40,726 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 90 [2023-02-15 01:54:40,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:40,727 INFO L225 Difference]: With dead ends: 480 [2023-02-15 01:54:40,728 INFO L226 Difference]: Without dead ends: 424 [2023-02-15 01:54:40,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-15 01:54:40,728 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 232 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:40,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 607 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:54:40,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-02-15 01:54:40,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 326. [2023-02-15 01:54:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 309 states have internal predecessors, (385), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 01:54:40,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 402 transitions. [2023-02-15 01:54:40,745 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 402 transitions. Word has length 90 [2023-02-15 01:54:40,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:40,746 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 402 transitions. [2023-02-15 01:54:40,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 01:54:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 402 transitions. [2023-02-15 01:54:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 01:54:40,747 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:40,747 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, 1, 1, 1, 1] [2023-02-15 01:54:40,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:40,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:40,952 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:40,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:40,952 INFO L85 PathProgramCache]: Analyzing trace with hash -527517657, now seen corresponding path program 1 times [2023-02-15 01:54:40,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:40,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50687646] [2023-02-15 01:54:40,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:40,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 01:54:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 01:54:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:41,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:41,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50687646] [2023-02-15 01:54:41,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50687646] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:41,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2020645874] [2023-02-15 01:54:41,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:41,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:41,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:41,176 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) [2023-02-15 01:54:41,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 01:54:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:41,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 01:54:41,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:41,319 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 01:54:41,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:41,598 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 01:54:41,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2020645874] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:41,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:41,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 20 [2023-02-15 01:54:41,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028947558] [2023-02-15 01:54:41,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:41,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-15 01:54:41,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:41,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-15 01:54:41,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-02-15 01:54:41,600 INFO L87 Difference]: Start difference. First operand 326 states and 402 transitions. Second operand has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 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) [2023-02-15 01:54:42,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:42,062 INFO L93 Difference]: Finished difference Result 741 states and 924 transitions. [2023-02-15 01:54:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-15 01:54:42,063 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 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 90 [2023-02-15 01:54:42,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:42,064 INFO L225 Difference]: With dead ends: 741 [2023-02-15 01:54:42,065 INFO L226 Difference]: Without dead ends: 507 [2023-02-15 01:54:42,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2023-02-15 01:54:42,066 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 271 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:42,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1138 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 01:54:42,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-02-15 01:54:42,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 326. [2023-02-15 01:54:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2491803278688525) internal successors, (381), 309 states have internal predecessors, (381), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 01:54:42,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 398 transitions. [2023-02-15 01:54:42,082 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 398 transitions. Word has length 90 [2023-02-15 01:54:42,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:42,083 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 398 transitions. [2023-02-15 01:54:42,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 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) [2023-02-15 01:54:42,083 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 398 transitions. [2023-02-15 01:54:42,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 01:54:42,084 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:42,084 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 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] [2023-02-15 01:54:42,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:42,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-15 01:54:42,289 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:42,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:42,290 INFO L85 PathProgramCache]: Analyzing trace with hash -29290607, now seen corresponding path program 3 times [2023-02-15 01:54:42,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:42,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366657353] [2023-02-15 01:54:42,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:42,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:42,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:42,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 01:54:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 01:54:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:42,489 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:42,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:42,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366657353] [2023-02-15 01:54:42,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366657353] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:42,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196841319] [2023-02-15 01:54:42,490 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 01:54:42,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:42,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:42,506 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) [2023-02-15 01:54:42,553 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 01:54:42,570 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-02-15 01:54:42,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:54:42,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 01:54:42,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-02-15 01:54:42,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:54:42,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196841319] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:42,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:54:42,637 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-02-15 01:54:42,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651298937] [2023-02-15 01:54:42,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:42,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 01:54:42,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:42,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 01:54:42,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-02-15 01:54:42,638 INFO L87 Difference]: Start difference. First operand 326 states and 398 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2023-02-15 01:54:42,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:42,738 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2023-02-15 01:54:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 01:54:42,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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 95 [2023-02-15 01:54:42,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:42,739 INFO L225 Difference]: With dead ends: 389 [2023-02-15 01:54:42,740 INFO L226 Difference]: Without dead ends: 387 [2023-02-15 01:54:42,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-02-15 01:54:42,740 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 151 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:42,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 722 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:42,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-02-15 01:54:42,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 317. [2023-02-15 01:54:42,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 300 states have internal predecessors, (371), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 01:54:42,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2023-02-15 01:54:42,757 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 95 [2023-02-15 01:54:42,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:42,758 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2023-02-15 01:54:42,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 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) [2023-02-15 01:54:42,758 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2023-02-15 01:54:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 01:54:42,759 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:42,759 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 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] [2023-02-15 01:54:42,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 01:54:42,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-02-15 01:54:42,964 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:42,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:42,965 INFO L85 PathProgramCache]: Analyzing trace with hash 27967695, now seen corresponding path program 2 times [2023-02-15 01:54:42,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:42,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344472788] [2023-02-15 01:54:42,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:42,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 01:54:43,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 01:54:43,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,166 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:54:43,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:43,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344472788] [2023-02-15 01:54:43,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344472788] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:43,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446246907] [2023-02-15 01:54:43,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:54:43,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:43,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:43,168 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) [2023-02-15 01:54:43,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 01:54:43,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 01:54:43,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:54:43,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 01:54:43,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:43,359 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-02-15 01:54:43,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:54:43,359 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446246907] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:54:43,359 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:54:43,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2023-02-15 01:54:43,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605895543] [2023-02-15 01:54:43,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:54:43,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 01:54:43,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:43,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 01:54:43,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-02-15 01:54:43,361 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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) [2023-02-15 01:54:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:54:43,480 INFO L93 Difference]: Finished difference Result 407 states and 481 transitions. [2023-02-15 01:54:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 01:54:43,481 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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 95 [2023-02-15 01:54:43,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:54:43,482 INFO L225 Difference]: With dead ends: 407 [2023-02-15 01:54:43,482 INFO L226 Difference]: Without dead ends: 376 [2023-02-15 01:54:43,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-02-15 01:54:43,483 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 209 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:54:43,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 591 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:54:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-02-15 01:54:43,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 312. [2023-02-15 01:54:43,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 291 states have (on average 1.2474226804123711) internal successors, (363), 295 states have internal predecessors, (363), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 01:54:43,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 380 transitions. [2023-02-15 01:54:43,510 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 380 transitions. Word has length 95 [2023-02-15 01:54:43,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:54:43,511 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 380 transitions. [2023-02-15 01:54:43,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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) [2023-02-15 01:54:43,511 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 380 transitions. [2023-02-15 01:54:43,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-02-15 01:54:43,513 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:54:43,513 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 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, 1, 1, 1, 1] [2023-02-15 01:54:43,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-02-15 01:54:43,718 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,SelfDestructingSolverStorable23 [2023-02-15 01:54:43,718 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:54:43,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:54:43,719 INFO L85 PathProgramCache]: Analyzing trace with hash 375111080, now seen corresponding path program 1 times [2023-02-15 01:54:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:54:43,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073553013] [2023-02-15 01:54:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:43,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:54:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:54:43,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:54:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 01:54:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 01:54:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:43,938 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:54:43,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:54:43,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073553013] [2023-02-15 01:54:43,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073553013] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:54:43,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007327135] [2023-02-15 01:54:43,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:54:43,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:54:43,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:43,941 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) [2023-02-15 01:54:43,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 01:54:44,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:54:44,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 01:54:44,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:54:44,161 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 38 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 01:54:44,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:54:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:54:44,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007327135] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:54:44,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:54:44,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2023-02-15 01:54:44,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274153994] [2023-02-15 01:54:44,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:54:44,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 01:54:44,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:54:44,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 01:54:44,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2023-02-15 01:54:44,401 INFO L87 Difference]: Start difference. First operand 312 states and 380 transitions. Second operand has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 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) [2023-02-15 01:55:13,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:13,619 INFO L93 Difference]: Finished difference Result 817 states and 1030 transitions. [2023-02-15 01:55:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 01:55:13,619 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 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 100 [2023-02-15 01:55:13,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:13,622 INFO L225 Difference]: With dead ends: 817 [2023-02-15 01:55:13,622 INFO L226 Difference]: Without dead ends: 579 [2023-02-15 01:55:13,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 446 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=632, Invalid=1166, Unknown=8, NotChecked=0, Total=1806 [2023-02-15 01:55:13,626 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 350 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 953 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:13,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 953 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-15 01:55:13,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-02-15 01:55:13,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 313. [2023-02-15 01:55:13,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 292 states have (on average 1.2157534246575343) internal successors, (355), 296 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 01:55:13,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 372 transitions. [2023-02-15 01:55:13,655 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 372 transitions. Word has length 100 [2023-02-15 01:55:13,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:13,655 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 372 transitions. [2023-02-15 01:55:13,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 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) [2023-02-15 01:55:13,656 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 372 transitions. [2023-02-15 01:55:13,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-02-15 01:55:13,658 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:13,658 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:55:13,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:13,863 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,SelfDestructingSolverStorable24 [2023-02-15 01:55:13,863 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:55:13,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:13,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1300138776, now seen corresponding path program 1 times [2023-02-15 01:55:13,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:13,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171285234] [2023-02-15 01:55:13,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:13,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:13,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:13,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:55:13,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:13,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:55:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:14,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-02-15 01:55:14,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 01:55:14,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:14,205 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:55:14,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:14,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171285234] [2023-02-15 01:55:14,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171285234] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:14,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424758229] [2023-02-15 01:55:14,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:14,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:14,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:14,206 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) [2023-02-15 01:55:14,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 01:55:14,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:14,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 01:55:14,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 01:55:14,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:15,054 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:55:15,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424758229] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:15,055 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:15,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2023-02-15 01:55:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14340840] [2023-02-15 01:55:15,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:15,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-15 01:55:15,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:15,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-15 01:55:15,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2023-02-15 01:55:15,057 INFO L87 Difference]: Start difference. First operand 313 states and 372 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) [2023-02-15 01:55:15,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:15,934 INFO L93 Difference]: Finished difference Result 1881 states and 2434 transitions. [2023-02-15 01:55:15,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-02-15 01:55:15,935 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 131 [2023-02-15 01:55:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:15,939 INFO L225 Difference]: With dead ends: 1881 [2023-02-15 01:55:15,939 INFO L226 Difference]: Without dead ends: 1665 [2023-02-15 01:55:15,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2023-02-15 01:55:15,941 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1472 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:15,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 895 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 01:55:15,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2023-02-15 01:55:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 392. [2023-02-15 01:55:15,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 371 states have (on average 1.2129380053908356) internal successors, (450), 375 states have internal predecessors, (450), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 01:55:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 467 transitions. [2023-02-15 01:55:15,971 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 467 transitions. Word has length 131 [2023-02-15 01:55:15,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:15,971 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 467 transitions. [2023-02-15 01:55:15,971 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) [2023-02-15 01:55:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 467 transitions. [2023-02-15 01:55:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-02-15 01:55:15,973 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:15,973 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, 1, 1, 1, 1] [2023-02-15 01:55:15,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:16,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:16,178 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:55:16,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1457790758, now seen corresponding path program 2 times [2023-02-15 01:55:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:16,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165177576] [2023-02-15 01:55:16,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:16,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:16,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:16,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:55:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:16,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:55:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-15 01:55:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 01:55:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 4 proven. 622 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:55:16,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:16,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165177576] [2023-02-15 01:55:16,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165177576] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:16,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393968270] [2023-02-15 01:55:16,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:55:16,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:16,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:16,669 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) [2023-02-15 01:55:16,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 01:55:16,794 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 01:55:16,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:16,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 01:55:16,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:17,090 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-02-15 01:55:17,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:17,597 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-02-15 01:55:17,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393968270] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:17,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:17,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 9] total 37 [2023-02-15 01:55:17,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981419452] [2023-02-15 01:55:17,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:17,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-15 01:55:17,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:17,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-15 01:55:17,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 01:55:17,600 INFO L87 Difference]: Start difference. First operand 392 states and 467 transitions. Second operand has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 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) [2023-02-15 01:55:19,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:19,513 INFO L93 Difference]: Finished difference Result 1174 states and 1425 transitions. [2023-02-15 01:55:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 01:55:19,513 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 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 145 [2023-02-15 01:55:19,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:19,516 INFO L225 Difference]: With dead ends: 1174 [2023-02-15 01:55:19,516 INFO L226 Difference]: Without dead ends: 954 [2023-02-15 01:55:19,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=460, Invalid=2962, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 01:55:19,517 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 810 mSDsluCounter, 4326 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:19,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 4522 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 01:55:19,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2023-02-15 01:55:19,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 430. [2023-02-15 01:55:19,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 407 states have (on average 1.2235872235872236) internal successors, (498), 409 states have internal predecessors, (498), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 01:55:19,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 521 transitions. [2023-02-15 01:55:19,546 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 521 transitions. Word has length 145 [2023-02-15 01:55:19,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:19,547 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 521 transitions. [2023-02-15 01:55:19,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 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) [2023-02-15 01:55:19,547 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 521 transitions. [2023-02-15 01:55:19,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 01:55:19,548 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:19,548 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 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, 1, 1, 1] [2023-02-15 01:55:19,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-02-15 01:55:19,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-15 01:55:19,754 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:55:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:19,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1324169322, now seen corresponding path program 1 times [2023-02-15 01:55:19,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:19,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167117502] [2023-02-15 01:55:19,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:19,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:55:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:19,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:55:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:20,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 01:55:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:20,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 01:55:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:20,318 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 4 proven. 690 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 01:55:20,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:20,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167117502] [2023-02-15 01:55:20,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167117502] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:20,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455149241] [2023-02-15 01:55:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:20,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:20,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:20,338 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) [2023-02-15 01:55:20,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 01:55:20,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:20,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-15 01:55:20,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:20,607 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2023-02-15 01:55:20,607 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:55:20,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455149241] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:55:20,607 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:55:20,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2023-02-15 01:55:20,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69328979] [2023-02-15 01:55:20,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:55:20,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 01:55:20,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:20,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 01:55:20,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2023-02-15 01:55:20,613 INFO L87 Difference]: Start difference. First operand 430 states and 521 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2023-02-15 01:55:20,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:20,811 INFO L93 Difference]: Finished difference Result 517 states and 616 transitions. [2023-02-15 01:55:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-15 01:55:20,812 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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 151 [2023-02-15 01:55:20,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:20,813 INFO L225 Difference]: With dead ends: 517 [2023-02-15 01:55:20,813 INFO L226 Difference]: Without dead ends: 515 [2023-02-15 01:55:20,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 01:55:20,814 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 119 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:20,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 755 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:55:20,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-02-15 01:55:20,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 449. [2023-02-15 01:55:20,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 426 states have (on average 1.2183098591549295) internal successors, (519), 428 states have internal predecessors, (519), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 01:55:20,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 542 transitions. [2023-02-15 01:55:20,864 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 542 transitions. Word has length 151 [2023-02-15 01:55:20,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:20,869 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 542 transitions. [2023-02-15 01:55:20,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 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) [2023-02-15 01:55:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 542 transitions. [2023-02-15 01:55:20,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 01:55:20,871 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:20,871 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 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, 1, 1, 1, 1] [2023-02-15 01:55:20,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:21,075 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,SelfDestructingSolverStorable27 [2023-02-15 01:55:21,076 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:55:21,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:21,076 INFO L85 PathProgramCache]: Analyzing trace with hash -2078784474, now seen corresponding path program 1 times [2023-02-15 01:55:21,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:21,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832141570] [2023-02-15 01:55:21,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:21,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:21,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:55:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:55:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 01:55:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 01:55:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,173 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2023-02-15 01:55:21,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:21,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832141570] [2023-02-15 01:55:21,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832141570] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:55:21,173 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:55:21,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 01:55:21,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626006040] [2023-02-15 01:55:21,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:55:21,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:55:21,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:21,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:55:21,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 01:55:21,175 INFO L87 Difference]: Start difference. First operand 449 states and 542 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) [2023-02-15 01:55:21,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:21,230 INFO L93 Difference]: Finished difference Result 765 states and 947 transitions. [2023-02-15 01:55:21,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:55:21,231 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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 151 [2023-02-15 01:55:21,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:21,232 INFO L225 Difference]: With dead ends: 765 [2023-02-15 01:55:21,233 INFO L226 Difference]: Without dead ends: 493 [2023-02-15 01:55:21,233 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 [2023-02-15 01:55:21,234 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 4 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 265 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 [2023-02-15 01:55:21,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 265 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:21,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-02-15 01:55:21,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 469. [2023-02-15 01:55:21,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 446 states have (on average 1.2085201793721974) internal successors, (539), 448 states have internal predecessors, (539), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 01:55:21,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 562 transitions. [2023-02-15 01:55:21,282 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 562 transitions. Word has length 151 [2023-02-15 01:55:21,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:21,282 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 562 transitions. [2023-02-15 01:55:21,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) [2023-02-15 01:55:21,283 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 562 transitions. [2023-02-15 01:55:21,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 01:55:21,284 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:21,284 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 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, 1, 1, 1, 1] [2023-02-15 01:55:21,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-02-15 01:55:21,285 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:55:21,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:21,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1134006928, now seen corresponding path program 1 times [2023-02-15 01:55:21,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:21,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007627354] [2023-02-15 01:55:21,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:21,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:55:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:55:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 01:55:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 01:55:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,477 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-02-15 01:55:21,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:21,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007627354] [2023-02-15 01:55:21,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007627354] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:21,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911358109] [2023-02-15 01:55:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:21,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:21,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:21,479 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) [2023-02-15 01:55:21,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 01:55:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:21,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-15 01:55:21,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:21,677 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 01:55:21,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:21,815 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-02-15 01:55:21,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911358109] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:21,815 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:21,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2023-02-15 01:55:21,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744182743] [2023-02-15 01:55:21,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:21,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 01:55:21,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:21,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 01:55:21,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2023-02-15 01:55:21,816 INFO L87 Difference]: Start difference. First operand 469 states and 562 transitions. Second operand has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 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) [2023-02-15 01:55:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:22,736 INFO L93 Difference]: Finished difference Result 1396 states and 1606 transitions. [2023-02-15 01:55:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-02-15 01:55:22,753 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 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 152 [2023-02-15 01:55:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:22,757 INFO L225 Difference]: With dead ends: 1396 [2023-02-15 01:55:22,758 INFO L226 Difference]: Without dead ends: 1347 [2023-02-15 01:55:22,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=455, Invalid=2625, Unknown=0, NotChecked=0, Total=3080 [2023-02-15 01:55:22,759 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 840 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:22,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 3703 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 01:55:22,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2023-02-15 01:55:22,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 505. [2023-02-15 01:55:22,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 480 states have (on average 1.2145833333333333) internal successors, (583), 479 states have internal predecessors, (583), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 21 states have call predecessors, (22), 7 states have call successors, (22) [2023-02-15 01:55:22,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 612 transitions. [2023-02-15 01:55:22,812 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 612 transitions. Word has length 152 [2023-02-15 01:55:22,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:22,812 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 612 transitions. [2023-02-15 01:55:22,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 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) [2023-02-15 01:55:22,813 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 612 transitions. [2023-02-15 01:55:22,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 01:55:22,814 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:22,814 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 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, 1, 1, 1, 1] [2023-02-15 01:55:22,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:23,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:23,019 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:55:23,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:23,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1134005006, now seen corresponding path program 1 times [2023-02-15 01:55:23,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:23,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121155840] [2023-02-15 01:55:23,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:23,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:23,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:55:23,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:23,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:55:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:23,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 01:55:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 01:55:23,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 4 proven. 696 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 01:55:23,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:23,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121155840] [2023-02-15 01:55:23,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121155840] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:23,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1326530107] [2023-02-15 01:55:23,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:23,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:23,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:23,748 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) [2023-02-15 01:55:23,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 01:55:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:23,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-15 01:55:23,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:24,169 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 01:55:24,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:24,752 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 01:55:24,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1326530107] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:24,752 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:24,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 10] total 40 [2023-02-15 01:55:24,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223338188] [2023-02-15 01:55:24,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:24,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-15 01:55:24,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:24,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-15 01:55:24,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 01:55:24,754 INFO L87 Difference]: Start difference. First operand 505 states and 612 transitions. Second operand has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 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) [2023-02-15 01:55:27,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:27,285 INFO L93 Difference]: Finished difference Result 1453 states and 1753 transitions. [2023-02-15 01:55:27,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-15 01:55:27,286 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 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 152 [2023-02-15 01:55:27,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:27,288 INFO L225 Difference]: With dead ends: 1453 [2023-02-15 01:55:27,288 INFO L226 Difference]: Without dead ends: 1120 [2023-02-15 01:55:27,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=627, Invalid=4485, Unknown=0, NotChecked=0, Total=5112 [2023-02-15 01:55:27,290 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 672 mSDsluCounter, 4682 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 4952 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:27,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 4952 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-15 01:55:27,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-02-15 01:55:27,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 519. [2023-02-15 01:55:27,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 494 states have (on average 1.2186234817813766) internal successors, (602), 492 states have internal predecessors, (602), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 22 states have call predecessors, (22), 7 states have call successors, (22) [2023-02-15 01:55:27,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 631 transitions. [2023-02-15 01:55:27,325 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 631 transitions. Word has length 152 [2023-02-15 01:55:27,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:27,325 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 631 transitions. [2023-02-15 01:55:27,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 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) [2023-02-15 01:55:27,326 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 631 transitions. [2023-02-15 01:55:27,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-02-15 01:55:27,327 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:27,327 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 17, 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, 1, 1, 1, 1] [2023-02-15 01:55:27,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:27,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:27,532 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 01:55:27,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:27,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2041814602, now seen corresponding path program 1 times [2023-02-15 01:55:27,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:27,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559701958] [2023-02-15 01:55:27,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:27,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:27,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 01:55:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:27,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 01:55:27,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:28,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-02-15 01:55:28,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-15 01:55:28,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:28,053 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:55:28,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:28,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559701958] [2023-02-15 01:55:28,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559701958] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:28,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1298857337] [2023-02-15 01:55:28,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:28,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:28,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:28,055 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) [2023-02-15 01:55:28,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-15 01:55:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:28,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-15 01:55:28,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:28,677 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 38 proven. 765 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 01:55:28,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:29,500 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 01:55:29,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1298857337] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:29,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:29,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 61 [2023-02-15 01:55:29,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851944529] [2023-02-15 01:55:29,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:29,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-02-15 01:55:29,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:29,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-02-15 01:55:29,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=2846, Unknown=0, NotChecked=0, Total=3660 [2023-02-15 01:55:29,502 INFO L87 Difference]: Start difference. First operand 519 states and 631 transitions. Second operand has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 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) [2023-02-15 01:55:42,133 WARN L233 SmtUtils]: Spent 11.83s on a formula simplification. DAG size of input: 66 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 01:55:51,135 WARN L233 SmtUtils]: Spent 6.74s 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) [2023-02-15 01:56:06,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 01:56:07,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 01:56:10,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 01:56:11,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 01:56:22,985 WARN L233 SmtUtils]: Spent 8.87s on a formula simplification. DAG size of input: 82 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 01:56:46,449 WARN L233 SmtUtils]: Spent 8.44s on a formula simplification. DAG size of input: 82 DAG size of output: 23 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 01:56:54,131 WARN L233 SmtUtils]: Spent 7.40s on a formula simplification. DAG size of input: 67 DAG size of output: 24 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)