./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f4f20531c98faa0af8884f2ddaf47888911b3a46 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:07:49,344 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:07:49,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:07:49,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:07:49,386 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:07:49,391 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:07:49,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:07:49,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:07:49,403 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:07:49,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:07:49,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:07:49,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:07:49,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:07:49,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:07:49,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:07:49,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:07:49,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:07:49,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:07:49,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:07:49,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:07:49,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:07:49,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:07:49,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:07:49,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:07:49,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:07:49,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:07:49,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:07:49,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:07:49,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:07:49,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:07:49,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:07:49,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:07:49,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:07:49,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:07:49,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:07:49,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:07:49,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:07:49,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:07:49,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:07:49,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:07:49,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:07:49,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-22 13:07:49,502 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:07:49,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:07:49,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:07:49,503 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:07:49,503 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:07:49,503 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:07:49,503 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:07:49,503 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:07:49,503 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:07:49,503 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:07:49,504 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:07:49,504 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:07:49,504 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:07:49,508 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:07:49,509 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:07:49,509 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:07:49,510 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:07:49,510 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:07:49,510 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:07:49,510 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:07:49,511 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:07:49,511 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:07:49,511 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:07:49,511 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:07:49,511 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-22 13:07:49,512 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:07:49,512 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:07:49,512 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:07:49,512 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:07:49,513 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:07:49,513 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:07:49,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:07:49,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:49,514 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:07:49,514 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:07:49,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:07:49,514 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:07:49,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:07:49,515 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:07:49,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:07:49,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:07:49,515 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2020-11-22 13:07:49,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:07:49,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:07:49,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:07:49,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:07:49,886 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:07:49,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-11-22 13:07:49,981 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/data/33de4421c/f5973fbaa88a4780a782f2ac28871051/FLAGe757eaf23 [2020-11-22 13:07:50,567 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:07:50,568 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-11-22 13:07:50,578 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/data/33de4421c/f5973fbaa88a4780a782f2ac28871051/FLAGe757eaf23 [2020-11-22 13:07:50,894 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/data/33de4421c/f5973fbaa88a4780a782f2ac28871051 [2020-11-22 13:07:50,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:07:50,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:07:50,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:50,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:07:50,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:07:50,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:50" (1/1) ... [2020-11-22 13:07:50,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72e4ebfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:50, skipping insertion in model container [2020-11-22 13:07:50,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:07:50" (1/1) ... [2020-11-22 13:07:50,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:07:50,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:07:51,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:51,191 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:07:51,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:07:51,293 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:07:51,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51 WrapperNode [2020-11-22 13:07:51,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:07:51,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:51,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:07:51,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:07:51,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,333 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:07:51,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:07:51,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:07:51,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:07:51,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... [2020-11-22 13:07:51,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:07:51,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:07:51,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:07:51,447 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:07:51,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:07:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:07:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:07:51,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:07:51,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:07:53,317 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:07:53,317 INFO L298 CfgBuilder]: Removed 42 assume(true) statements. [2020-11-22 13:07:53,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:53 BoogieIcfgContainer [2020-11-22 13:07:53,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:07:53,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:07:53,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:07:53,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:07:53,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:07:50" (1/3) ... [2020-11-22 13:07:53,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d22cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:53, skipping insertion in model container [2020-11-22 13:07:53,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:07:51" (2/3) ... [2020-11-22 13:07:53,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d22cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:07:53, skipping insertion in model container [2020-11-22 13:07:53,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:53" (3/3) ... [2020-11-22 13:07:53,329 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2020-11-22 13:07:53,340 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:07:53,344 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 28 error locations. [2020-11-22 13:07:53,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2020-11-22 13:07:53,381 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:07:53,381 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:07:53,381 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:07:53,382 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:07:53,382 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:07:53,382 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:07:53,382 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:07:53,383 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:07:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-11-22 13:07:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:07:53,404 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:53,405 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:07:53,406 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:53,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:53,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1752721737, now seen corresponding path program 1 times [2020-11-22 13:07:53,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:53,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249526378] [2020-11-22 13:07:53,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:53,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249526378] [2020-11-22 13:07:53,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:53,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:53,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337602489] [2020-11-22 13:07:53,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-22 13:07:53,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:53,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-22 13:07:53,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:53,607 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-11-22 13:07:53,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:53,663 INFO L93 Difference]: Finished difference Result 177 states and 229 transitions. [2020-11-22 13:07:53,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-22 13:07:53,665 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-22 13:07:53,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:53,675 INFO L225 Difference]: With dead ends: 177 [2020-11-22 13:07:53,675 INFO L226 Difference]: Without dead ends: 90 [2020-11-22 13:07:53,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-22 13:07:53,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-22 13:07:53,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-11-22 13:07:53,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-22 13:07:53,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2020-11-22 13:07:53,718 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 108 transitions. Word has length 6 [2020-11-22 13:07:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:53,718 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 108 transitions. [2020-11-22 13:07:53,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-22 13:07:53,718 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 108 transitions. [2020-11-22 13:07:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-22 13:07:53,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:53,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-22 13:07:53,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:07:53,720 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:53,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:53,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1751375890, now seen corresponding path program 1 times [2020-11-22 13:07:53,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:53,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442017737] [2020-11-22 13:07:53,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:53,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442017737] [2020-11-22 13:07:53,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:53,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:07:53,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795984186] [2020-11-22 13:07:53,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:07:53,782 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:53,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:07:53,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:07:53,783 INFO L87 Difference]: Start difference. First operand 90 states and 108 transitions. Second operand 3 states. [2020-11-22 13:07:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:53,943 INFO L93 Difference]: Finished difference Result 177 states and 210 transitions. [2020-11-22 13:07:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:53,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-22 13:07:53,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:53,945 INFO L225 Difference]: With dead ends: 177 [2020-11-22 13:07:53,945 INFO L226 Difference]: Without dead ends: 103 [2020-11-22 13:07:53,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:07:53,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-22 13:07:53,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2020-11-22 13:07:53,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-22 13:07:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2020-11-22 13:07:53,957 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 6 [2020-11-22 13:07:53,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:53,957 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2020-11-22 13:07:53,957 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:07:53,957 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2020-11-22 13:07:53,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:07:53,958 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:53,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:53,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:07:53,959 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:53,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:53,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1870895096, now seen corresponding path program 1 times [2020-11-22 13:07:53,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:53,960 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17280062] [2020-11-22 13:07:53,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:54,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:54,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17280062] [2020-11-22 13:07:54,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:54,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:54,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968807322] [2020-11-22 13:07:54,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:54,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:54,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:54,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:54,060 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand 4 states. [2020-11-22 13:07:54,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:54,257 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2020-11-22 13:07:54,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:54,259 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-22 13:07:54,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:54,260 INFO L225 Difference]: With dead ends: 139 [2020-11-22 13:07:54,260 INFO L226 Difference]: Without dead ends: 132 [2020-11-22 13:07:54,261 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:54,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-22 13:07:54,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 103. [2020-11-22 13:07:54,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-22 13:07:54,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2020-11-22 13:07:54,283 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 8 [2020-11-22 13:07:54,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:54,284 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2020-11-22 13:07:54,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:54,284 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2020-11-22 13:07:54,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:07:54,286 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:54,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:54,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-22 13:07:54,287 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:54,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:54,290 INFO L82 PathProgramCache]: Analyzing trace with hash 2131794302, now seen corresponding path program 1 times [2020-11-22 13:07:54,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:54,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399772540] [2020-11-22 13:07:54,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:54,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:54,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399772540] [2020-11-22 13:07:54,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:54,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:54,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629144646] [2020-11-22 13:07:54,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:07:54,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:54,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:07:54,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:07:54,344 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand 3 states. [2020-11-22 13:07:54,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:54,503 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2020-11-22 13:07:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:07:54,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-22 13:07:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:54,508 INFO L225 Difference]: With dead ends: 131 [2020-11-22 13:07:54,508 INFO L226 Difference]: Without dead ends: 126 [2020-11-22 13:07:54,509 INFO L677 BasicCegarLoop]: 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 [2020-11-22 13:07:54,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-22 13:07:54,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 95. [2020-11-22 13:07:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-22 13:07:54,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2020-11-22 13:07:54,525 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 9 [2020-11-22 13:07:54,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:54,525 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2020-11-22 13:07:54,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:07:54,525 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2020-11-22 13:07:54,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:07:54,527 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:54,527 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:54,527 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-22 13:07:54,528 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:54,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:54,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1849411165, now seen corresponding path program 1 times [2020-11-22 13:07:54,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:54,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822505335] [2020-11-22 13:07:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:54,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:54,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822505335] [2020-11-22 13:07:54,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:54,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:07:54,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994796443] [2020-11-22 13:07:54,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:07:54,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:54,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:07:54,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:07:54,737 INFO L87 Difference]: Start difference. First operand 95 states and 115 transitions. Second operand 6 states. [2020-11-22 13:07:54,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:54,851 INFO L93 Difference]: Finished difference Result 166 states and 192 transitions. [2020-11-22 13:07:54,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:07:54,852 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-22 13:07:54,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:54,853 INFO L225 Difference]: With dead ends: 166 [2020-11-22 13:07:54,853 INFO L226 Difference]: Without dead ends: 140 [2020-11-22 13:07:54,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:54,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-22 13:07:54,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 95. [2020-11-22 13:07:54,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-22 13:07:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2020-11-22 13:07:54,863 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 10 [2020-11-22 13:07:54,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:54,863 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2020-11-22 13:07:54,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:07:54,864 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2020-11-22 13:07:54,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:07:54,865 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:54,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:54,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-22 13:07:54,865 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:54,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:54,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1859277813, now seen corresponding path program 1 times [2020-11-22 13:07:54,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:54,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458725307] [2020-11-22 13:07:54,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:54,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:54,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458725307] [2020-11-22 13:07:54,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:54,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:54,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856469704] [2020-11-22 13:07:54,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:54,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:54,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:54,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:54,931 INFO L87 Difference]: Start difference. First operand 95 states and 113 transitions. Second operand 4 states. [2020-11-22 13:07:55,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:55,112 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2020-11-22 13:07:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:55,114 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-22 13:07:55,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:55,115 INFO L225 Difference]: With dead ends: 129 [2020-11-22 13:07:55,115 INFO L226 Difference]: Without dead ends: 127 [2020-11-22 13:07:55,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:55,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-22 13:07:55,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2020-11-22 13:07:55,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-22 13:07:55,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2020-11-22 13:07:55,132 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 10 [2020-11-22 13:07:55,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:55,137 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2020-11-22 13:07:55,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:55,138 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2020-11-22 13:07:55,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:07:55,139 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:55,139 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:55,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-22 13:07:55,140 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:55,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:55,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1746405168, now seen corresponding path program 1 times [2020-11-22 13:07:55,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:55,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128785632] [2020-11-22 13:07:55,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:55,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:55,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:55,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128785632] [2020-11-22 13:07:55,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:55,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:55,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663171580] [2020-11-22 13:07:55,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:55,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:55,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:55,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:55,191 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand 4 states. [2020-11-22 13:07:55,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:55,297 INFO L93 Difference]: Finished difference Result 130 states and 150 transitions. [2020-11-22 13:07:55,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:55,298 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-22 13:07:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:55,299 INFO L225 Difference]: With dead ends: 130 [2020-11-22 13:07:55,299 INFO L226 Difference]: Without dead ends: 128 [2020-11-22 13:07:55,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:55,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-11-22 13:07:55,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 100. [2020-11-22 13:07:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-22 13:07:55,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2020-11-22 13:07:55,328 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 10 [2020-11-22 13:07:55,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:55,328 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2020-11-22 13:07:55,328 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:55,329 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2020-11-22 13:07:55,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:07:55,330 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:55,330 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:55,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-22 13:07:55,330 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:55,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:55,331 INFO L82 PathProgramCache]: Analyzing trace with hash -1122148882, now seen corresponding path program 1 times [2020-11-22 13:07:55,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:55,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767856618] [2020-11-22 13:07:55,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:55,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:55,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767856618] [2020-11-22 13:07:55,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:55,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:55,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181468697] [2020-11-22 13:07:55,389 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:55,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:55,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:55,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:55,390 INFO L87 Difference]: Start difference. First operand 100 states and 119 transitions. Second operand 4 states. [2020-11-22 13:07:55,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:55,530 INFO L93 Difference]: Finished difference Result 213 states and 246 transitions. [2020-11-22 13:07:55,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:55,534 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-22 13:07:55,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:55,536 INFO L225 Difference]: With dead ends: 213 [2020-11-22 13:07:55,536 INFO L226 Difference]: Without dead ends: 140 [2020-11-22 13:07:55,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:55,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-22 13:07:55,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 105. [2020-11-22 13:07:55,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-22 13:07:55,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2020-11-22 13:07:55,551 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 11 [2020-11-22 13:07:55,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:55,551 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2020-11-22 13:07:55,551 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:55,551 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2020-11-22 13:07:55,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:07:55,555 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:55,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:55,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-22 13:07:55,556 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:55,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:55,557 INFO L82 PathProgramCache]: Analyzing trace with hash 827871603, now seen corresponding path program 1 times [2020-11-22 13:07:55,557 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:55,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610480828] [2020-11-22 13:07:55,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:55,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:55,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:55,611 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610480828] [2020-11-22 13:07:55,611 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:55,611 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-22 13:07:55,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25696226] [2020-11-22 13:07:55,612 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:55,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:55,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:55,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:55,612 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand 4 states. [2020-11-22 13:07:55,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:55,723 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2020-11-22 13:07:55,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:55,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-22 13:07:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:55,724 INFO L225 Difference]: With dead ends: 140 [2020-11-22 13:07:55,725 INFO L226 Difference]: Without dead ends: 138 [2020-11-22 13:07:55,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:55,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-11-22 13:07:55,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 107. [2020-11-22 13:07:55,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-22 13:07:55,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 127 transitions. [2020-11-22 13:07:55,734 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 127 transitions. Word has length 12 [2020-11-22 13:07:55,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:55,735 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 127 transitions. [2020-11-22 13:07:55,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:55,738 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 127 transitions. [2020-11-22 13:07:55,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-22 13:07:55,740 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:55,740 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:55,741 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-22 13:07:55,742 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:55,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:55,743 INFO L82 PathProgramCache]: Analyzing trace with hash -2045528894, now seen corresponding path program 1 times [2020-11-22 13:07:55,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:55,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079702089] [2020-11-22 13:07:55,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:55,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:55,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079702089] [2020-11-22 13:07:55,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706894766] [2020-11-22 13:07:55,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_447294c1-bd9c-44f4-a7ed-340b3530fdee/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:07:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:55,851 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:07:55,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:07:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:56,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:07:56,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:56,143 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-22 13:07:56,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2020-11-22 13:07:56,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294478776] [2020-11-22 13:07:56,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:07:56,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:56,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:07:56,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:56,145 INFO L87 Difference]: Start difference. First operand 107 states and 127 transitions. Second operand 6 states. [2020-11-22 13:07:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:56,304 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2020-11-22 13:07:56,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:56,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-22 13:07:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:56,306 INFO L225 Difference]: With dead ends: 164 [2020-11-22 13:07:56,308 INFO L226 Difference]: Without dead ends: 161 [2020-11-22 13:07:56,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:56,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-11-22 13:07:56,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 94. [2020-11-22 13:07:56,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-22 13:07:56,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2020-11-22 13:07:56,319 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 12 [2020-11-22 13:07:56,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:56,319 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2020-11-22 13:07:56,319 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:07:56,320 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2020-11-22 13:07:56,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-22 13:07:56,322 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:56,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:56,548 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-22 13:07:56,549 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:56,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:56,549 INFO L82 PathProgramCache]: Analyzing trace with hash -364020413, now seen corresponding path program 1 times [2020-11-22 13:07:56,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:56,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971236414] [2020-11-22 13:07:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:56,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:56,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:56,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971236414] [2020-11-22 13:07:56,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:56,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 13:07:56,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495516076] [2020-11-22 13:07:56,597 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:07:56,597 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:56,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:07:56,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:07:56,598 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand 4 states. [2020-11-22 13:07:56,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:56,721 INFO L93 Difference]: Finished difference Result 152 states and 171 transitions. [2020-11-22 13:07:56,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:07:56,721 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-22 13:07:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:56,723 INFO L225 Difference]: With dead ends: 152 [2020-11-22 13:07:56,723 INFO L226 Difference]: Without dead ends: 149 [2020-11-22 13:07:56,723 INFO L677 BasicCegarLoop]: 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 [2020-11-22 13:07:56,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-11-22 13:07:56,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 82. [2020-11-22 13:07:56,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-22 13:07:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2020-11-22 13:07:56,735 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 13 [2020-11-22 13:07:56,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:56,736 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2020-11-22 13:07:56,736 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:07:56,736 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2020-11-22 13:07:56,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-22 13:07:56,736 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:56,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:56,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-22 13:07:56,737 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:56,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:56,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1023910804, now seen corresponding path program 1 times [2020-11-22 13:07:56,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:56,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994505313] [2020-11-22 13:07:56,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:56,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:56,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994505313] [2020-11-22 13:07:56,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:56,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:07:56,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296052512] [2020-11-22 13:07:56,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-22 13:07:56,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:56,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-22 13:07:56,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:07:56,931 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand 6 states. [2020-11-22 13:07:57,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:57,014 INFO L93 Difference]: Finished difference Result 147 states and 169 transitions. [2020-11-22 13:07:57,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:07:57,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-22 13:07:57,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:57,016 INFO L225 Difference]: With dead ends: 147 [2020-11-22 13:07:57,016 INFO L226 Difference]: Without dead ends: 123 [2020-11-22 13:07:57,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:57,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-22 13:07:57,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 90. [2020-11-22 13:07:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-22 13:07:57,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 110 transitions. [2020-11-22 13:07:57,025 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 110 transitions. Word has length 14 [2020-11-22 13:07:57,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:57,025 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 110 transitions. [2020-11-22 13:07:57,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-22 13:07:57,025 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 110 transitions. [2020-11-22 13:07:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-22 13:07:57,028 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:57,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:57,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-22 13:07:57,029 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:57,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:57,029 INFO L82 PathProgramCache]: Analyzing trace with hash -952880002, now seen corresponding path program 1 times [2020-11-22 13:07:57,030 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:57,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003142412] [2020-11-22 13:07:57,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:57,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003142412] [2020-11-22 13:07:57,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:57,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:07:57,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368408357] [2020-11-22 13:07:57,280 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:07:57,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:57,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:07:57,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:57,281 INFO L87 Difference]: Start difference. First operand 90 states and 110 transitions. Second operand 7 states. [2020-11-22 13:07:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:57,429 INFO L93 Difference]: Finished difference Result 123 states and 144 transitions. [2020-11-22 13:07:57,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:07:57,430 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-22 13:07:57,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:57,431 INFO L225 Difference]: With dead ends: 123 [2020-11-22 13:07:57,431 INFO L226 Difference]: Without dead ends: 122 [2020-11-22 13:07:57,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:07:57,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-11-22 13:07:57,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2020-11-22 13:07:57,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-22 13:07:57,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2020-11-22 13:07:57,443 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 16 [2020-11-22 13:07:57,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:57,445 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2020-11-22 13:07:57,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:07:57,445 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2020-11-22 13:07:57,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:07:57,446 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:57,446 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:57,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-22 13:07:57,447 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:57,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:57,448 INFO L82 PathProgramCache]: Analyzing trace with hash -889638240, now seen corresponding path program 1 times [2020-11-22 13:07:57,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:57,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298628142] [2020-11-22 13:07:57,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:57,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:57,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:57,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298628142] [2020-11-22 13:07:57,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:57,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 13:07:57,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815387936] [2020-11-22 13:07:57,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:07:57,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:57,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:07:57,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:07:57,587 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand 5 states. [2020-11-22 13:07:57,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:57,685 INFO L93 Difference]: Finished difference Result 122 states and 143 transitions. [2020-11-22 13:07:57,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:07:57,686 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-22 13:07:57,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:57,687 INFO L225 Difference]: With dead ends: 122 [2020-11-22 13:07:57,687 INFO L226 Difference]: Without dead ends: 83 [2020-11-22 13:07:57,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:07:57,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-22 13:07:57,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-11-22 13:07:57,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-22 13:07:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 98 transitions. [2020-11-22 13:07:57,695 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 98 transitions. Word has length 18 [2020-11-22 13:07:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:57,695 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 98 transitions. [2020-11-22 13:07:57,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:07:57,696 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 98 transitions. [2020-11-22 13:07:57,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-22 13:07:57,696 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:57,696 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:57,696 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-22 13:07:57,697 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:57,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:57,697 INFO L82 PathProgramCache]: Analyzing trace with hash 501252997, now seen corresponding path program 1 times [2020-11-22 13:07:57,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:57,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49833856] [2020-11-22 13:07:57,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:57,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49833856] [2020-11-22 13:07:57,892 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:57,892 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:07:57,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647645605] [2020-11-22 13:07:57,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:07:57,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:57,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:07:57,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:57,894 INFO L87 Difference]: Start difference. First operand 82 states and 98 transitions. Second operand 7 states. [2020-11-22 13:07:58,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:58,006 INFO L93 Difference]: Finished difference Result 170 states and 191 transitions. [2020-11-22 13:07:58,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-22 13:07:58,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-22 13:07:58,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:58,008 INFO L225 Difference]: With dead ends: 170 [2020-11-22 13:07:58,008 INFO L226 Difference]: Without dead ends: 169 [2020-11-22 13:07:58,008 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-22 13:07:58,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-11-22 13:07:58,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 102. [2020-11-22 13:07:58,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-22 13:07:58,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2020-11-22 13:07:58,018 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 18 [2020-11-22 13:07:58,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:58,018 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2020-11-22 13:07:58,019 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:07:58,019 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2020-11-22 13:07:58,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-22 13:07:58,019 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:58,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:58,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-22 13:07:58,020 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:58,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:58,020 INFO L82 PathProgramCache]: Analyzing trace with hash 667802599, now seen corresponding path program 1 times [2020-11-22 13:07:58,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:58,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073465225] [2020-11-22 13:07:58,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:58,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:58,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073465225] [2020-11-22 13:07:58,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:58,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:07:58,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198708466] [2020-11-22 13:07:58,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:07:58,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:58,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:07:58,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:58,212 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 7 states. [2020-11-22 13:07:58,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:58,354 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2020-11-22 13:07:58,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:07:58,355 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-11-22 13:07:58,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:58,357 INFO L225 Difference]: With dead ends: 169 [2020-11-22 13:07:58,357 INFO L226 Difference]: Without dead ends: 168 [2020-11-22 13:07:58,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:58,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-11-22 13:07:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 108. [2020-11-22 13:07:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-22 13:07:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2020-11-22 13:07:58,370 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 20 [2020-11-22 13:07:58,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:58,370 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2020-11-22 13:07:58,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:07:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2020-11-22 13:07:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-22 13:07:58,371 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:58,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:58,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-22 13:07:58,372 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:58,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1340960847, now seen corresponding path program 1 times [2020-11-22 13:07:58,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:58,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860074953] [2020-11-22 13:07:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:58,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:58,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860074953] [2020-11-22 13:07:58,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:58,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-22 13:07:58,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695440354] [2020-11-22 13:07:58,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-22 13:07:58,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:58,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-22 13:07:58,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:07:58,594 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand 7 states. [2020-11-22 13:07:58,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:07:58,712 INFO L93 Difference]: Finished difference Result 214 states and 246 transitions. [2020-11-22 13:07:58,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:07:58,713 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-11-22 13:07:58,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:07:58,715 INFO L225 Difference]: With dead ends: 214 [2020-11-22 13:07:58,715 INFO L226 Difference]: Without dead ends: 213 [2020-11-22 13:07:58,716 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-22 13:07:58,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-22 13:07:58,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 132. [2020-11-22 13:07:58,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-22 13:07:58,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 159 transitions. [2020-11-22 13:07:58,731 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 159 transitions. Word has length 20 [2020-11-22 13:07:58,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:07:58,733 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 159 transitions. [2020-11-22 13:07:58,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-22 13:07:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 159 transitions. [2020-11-22 13:07:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-22 13:07:58,734 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:07:58,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:07:58,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-22 13:07:58,735 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:07:58,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:07:58,735 INFO L82 PathProgramCache]: Analyzing trace with hash -772948496, now seen corresponding path program 1 times [2020-11-22 13:07:58,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:07:58,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035196393] [2020-11-22 13:07:58,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:07:58,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:07:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:07:59,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035196393] [2020-11-22 13:07:59,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:07:59,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-22 13:07:59,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243219075] [2020-11-22 13:07:59,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:07:59,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:07:59,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:07:59,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:07:59,140 INFO L87 Difference]: Start difference. First operand 132 states and 159 transitions. Second operand 10 states. [2020-11-22 13:08:00,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:00,071 INFO L93 Difference]: Finished difference Result 216 states and 239 transitions. [2020-11-22 13:08:00,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-22 13:08:00,072 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-11-22 13:08:00,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:00,074 INFO L225 Difference]: With dead ends: 216 [2020-11-22 13:08:00,074 INFO L226 Difference]: Without dead ends: 213 [2020-11-22 13:08:00,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-11-22 13:08:00,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-22 13:08:00,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 140. [2020-11-22 13:08:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-22 13:08:00,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2020-11-22 13:08:00,089 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 21 [2020-11-22 13:08:00,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:00,090 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2020-11-22 13:08:00,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:08:00,090 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2020-11-22 13:08:00,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:08:00,093 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:00,094 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:00,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-22 13:08:00,094 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:08:00,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:00,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1808400718, now seen corresponding path program 1 times [2020-11-22 13:08:00,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:00,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764544727] [2020-11-22 13:08:00,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:08:00,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:08:00,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764544727] [2020-11-22 13:08:00,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:08:00,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-22 13:08:00,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170066114] [2020-11-22 13:08:00,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-22 13:08:00,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:08:00,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-22 13:08:00,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-22 13:08:00,367 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand 10 states. [2020-11-22 13:08:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:08:00,927 INFO L93 Difference]: Finished difference Result 191 states and 223 transitions. [2020-11-22 13:08:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-22 13:08:00,928 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-11-22 13:08:00,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:08:00,929 INFO L225 Difference]: With dead ends: 191 [2020-11-22 13:08:00,929 INFO L226 Difference]: Without dead ends: 184 [2020-11-22 13:08:00,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-11-22 13:08:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-22 13:08:00,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 152. [2020-11-22 13:08:00,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-22 13:08:00,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2020-11-22 13:08:00,948 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 22 [2020-11-22 13:08:00,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:08:00,949 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2020-11-22 13:08:00,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-22 13:08:00,949 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2020-11-22 13:08:00,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-22 13:08:00,949 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:00,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:00,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-22 13:08:00,950 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:08:00,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:00,951 INFO L82 PathProgramCache]: Analyzing trace with hash -745623023, now seen corresponding path program 1 times [2020-11-22 13:08:00,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:00,951 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755393814] [2020-11-22 13:08:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:00,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:00,978 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:01,000 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:01,026 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:08:01,026 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:01,027 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-22 13:08:01,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:01 BoogieIcfgContainer [2020-11-22 13:08:01,070 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:01,071 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:01,071 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:01,071 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:01,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:07:53" (3/4) ... [2020-11-22 13:08:01,074 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:08:01,074 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:01,076 INFO L168 Benchmark]: Toolchain (without parser) took 10176.72 ms. Allocated memory was 81.8 MB in the beginning and 163.6 MB in the end (delta: 81.8 MB). Free memory was 45.3 MB in the beginning and 100.6 MB in the end (delta: -55.3 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:01,076 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 81.8 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:01,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.48 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 45.1 MB in the beginning and 85.7 MB in the end (delta: -40.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:01,077 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.31 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 83.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:01,078 INFO L168 Benchmark]: Boogie Preprocessor took 54.53 ms. Allocated memory is still 109.1 MB. Free memory was 82.9 MB in the beginning and 81.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:01,078 INFO L168 Benchmark]: RCFGBuilder took 1873.71 ms. Allocated memory is still 109.1 MB. Free memory was 81.5 MB in the beginning and 50.7 MB in the end (delta: 30.8 MB). Peak memory consumption was 53.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:01,079 INFO L168 Benchmark]: TraceAbstraction took 7749.10 ms. Allocated memory was 109.1 MB in the beginning and 163.6 MB in the end (delta: 54.5 MB). Free memory was 50.7 MB in the beginning and 100.6 MB in the end (delta: -50.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:01,087 INFO L168 Benchmark]: Witness Printer took 3.39 ms. Allocated memory is still 163.6 MB. Free memory is still 100.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:01,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 81.8 MB. Free memory is still 62.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 394.48 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 45.1 MB in the beginning and 85.7 MB in the end (delta: -40.6 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.31 ms. Allocated memory is still 109.1 MB. Free memory was 85.7 MB in the beginning and 83.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.53 ms. Allocated memory is still 109.1 MB. Free memory was 82.9 MB in the beginning and 81.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1873.71 ms. Allocated memory is still 109.1 MB. Free memory was 81.5 MB in the beginning and 50.7 MB in the end (delta: 30.8 MB). Peak memory consumption was 53.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7749.10 ms. Allocated memory was 109.1 MB in the beginning and 163.6 MB in the end (delta: 54.5 MB). Free memory was 50.7 MB in the beginning and 100.6 MB in the end (delta: -50.0 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.39 ms. Allocated memory is still 163.6 MB. Free memory is still 100.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 104]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 102, overapproximation of bitwiseAnd at line 103. Possible FailurePath: [L218] unsigned int a ; [L219] unsigned int ma = __VERIFIER_nondet_uint(); [L220] signed char ea = __VERIFIER_nondet_char(); [L221] unsigned int b ; [L222] unsigned int mb = __VERIFIER_nondet_uint(); [L223] signed char eb = __VERIFIER_nondet_char(); [L224] unsigned int r_add ; [L225] unsigned int zero ; [L226] int sa ; [L227] int sb ; [L228] int tmp ; [L229] int tmp___0 ; [L230] int tmp___1 ; [L231] int tmp___2 ; [L232] int tmp___3 ; [L233] int tmp___4 ; [L234] int tmp___5 ; [L235] int tmp___6 ; [L236] int tmp___7 ; [L237] int tmp___8 ; [L238] int tmp___9 ; [L239] int __retres23 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L243] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND TRUE m >= 1U << 25U [L56] COND TRUE e >= 127 [L57] __retres4 = 4294967295U [L72] return (__retres4); [L244] a = base2flt(ma, ea) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND FALSE !(m < 1U << 24U) [L49] COND TRUE 1 [L51] COND FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] res = m | ((unsigned int )(e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L245] b = base2flt(mb, eb) [L247] COND FALSE !(a < zero) [L250] COND TRUE a > zero [L251] tmp = 1 [L255] sa = tmp [L257] COND FALSE !(b < zero) [L260] COND TRUE b > zero [L261] tmp___0 = 1 [L265] sb = tmp___0 [L76] unsigned int res ; [L77] unsigned int ma ; [L78] unsigned int mb ; [L79] unsigned int delta ; [L80] int ea ; [L81] int eb ; [L82] unsigned int tmp ; [L83] unsigned int __retres10 ; [L86] COND FALSE !(a < b) [L93] COND FALSE !(! b) [L100] ma = a & ((1U << 24U) - 1U) [L101] EXPR (int )(a >> 24U) - 128 [L101] ea = (int )(a >> 24U) - 128 [L102] ma = ma | (1U << 24U) [L103] mb = b & ((1U << 24U) - 1U) [L104] (int )(b >> 24U) - 128 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 28 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 7.6s, OverallIterations: 20, TraceHistogramMax: 2, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1670 SDtfs, 2124 SDslu, 3931 SDs, 0 SdLazy, 1131 SolverSat, 211 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 19 MinimizatonAttempts, 730 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 290 NumberOfCodeBlocks, 290 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 259 ConstructedInterpolants, 0 QuantifiedInterpolants, 19853 SizeOfPredicates, 1 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 21 InterpolantComputations, 20 PerfectInterpolantSequences, 4/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...