./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_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/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_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/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_c90084c1-f806-4e6c-9559-457f94c54e53/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 [2020-11-30 03:18:56,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:18:56,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:18:56,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:18:56,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:18:56,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:18:56,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:18:56,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:18:56,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:18:56,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:18:56,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:18:56,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:18:56,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:18:56,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:18:56,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:18:56,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:18:56,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:18:56,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:18:56,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:18:56,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:18:56,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:18:56,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:18:56,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:18:56,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:18:56,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:18:56,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:18:56,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:18:56,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:18:56,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:18:56,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:18:56,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:18:56,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:18:56,291 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:18:56,293 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:18:56,294 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:18:56,294 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:18:56,295 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:18:56,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:18:56,296 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:18:56,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:18:56,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:18:56,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-30 03:18:56,328 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:18:56,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:18:56,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:18:56,329 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:18:56,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:18:56,330 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:18:56,330 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:18:56,330 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:18:56,330 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:18:56,330 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:18:56,331 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:18:56,331 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:18:56,331 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:18:56,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:18:56,332 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:18:56,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:18:56,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:18:56,333 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 03:18:56,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:18:56,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:18:56,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:18:56,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:18:56,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:18:56,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:18:56,335 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 03:18:56,335 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:18:56,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:18:56,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:18:56,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:18:56,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:18:56,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:18:56,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:18:56,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:18:56,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:18:56,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:18:56,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:18:56,337 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:18:56,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:18:56,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:18:56,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:18:56,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:18:56,338 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_c90084c1-f806-4e6c-9559-457f94c54e53/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4f20531c98faa0af8884f2ddaf47888911b3a46 [2020-11-30 03:18:56,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:18:56,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:18:56,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:18:56,663 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:18:56,664 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:18:56,666 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-11-30 03:18:56,733 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/data/ec5ab16b0/7e72c66e7816475d87bd1bd152ae6e9f/FLAG36da517d7 [2020-11-30 03:18:57,308 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:18:57,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2020-11-30 03:18:57,320 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/data/ec5ab16b0/7e72c66e7816475d87bd1bd152ae6e9f/FLAG36da517d7 [2020-11-30 03:18:57,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/bin/utaipan/data/ec5ab16b0/7e72c66e7816475d87bd1bd152ae6e9f [2020-11-30 03:18:57,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:18:57,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:18:57,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:18:57,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:18:57,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:18:57,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6d6d9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:57, skipping insertion in model container [2020-11-30 03:18:57,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:18:57" (1/1) ... [2020-11-30 03:18:57,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:18:57,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:18:58,046 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:18:58,058 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:18:58,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:18:58,137 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:18:58,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58 WrapperNode [2020-11-30 03:18:58,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:18:58,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:18:58,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:18:58,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:18:58,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:18:58,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:18:58,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:18:58,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:18:58,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... [2020-11-30 03:18:58,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:18:58,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:18:58,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:18:58,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:18:58,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/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 [2020-11-30 03:18:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:18:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:18:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:18:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:19:00,197 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:19:00,197 INFO L298 CfgBuilder]: Removed 42 assume(true) statements. [2020-11-30 03:19:00,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:19:00 BoogieIcfgContainer [2020-11-30 03:19:00,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:19:00,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:19:00,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:19:00,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:19:00,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:18:57" (1/3) ... [2020-11-30 03:19:00,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2334714e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:19:00, skipping insertion in model container [2020-11-30 03:19:00,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:18:58" (2/3) ... [2020-11-30 03:19:00,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2334714e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:19:00, skipping insertion in model container [2020-11-30 03:19:00,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:19:00" (3/3) ... [2020-11-30 03:19:00,211 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2020-11-30 03:19:00,228 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:19:00,233 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 28 error locations. [2020-11-30 03:19:00,247 INFO L253 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2020-11-30 03:19:00,287 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:19:00,287 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:19:00,288 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:19:00,288 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:19:00,288 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:19:00,289 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:19:00,290 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:19:00,290 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:19:00,312 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states. [2020-11-30 03:19:00,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 03:19:00,318 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:00,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 03:19:00,319 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]=== [2020-11-30 03:19:00,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:00,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1752721737, now seen corresponding path program 1 times [2020-11-30 03:19:00,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:00,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493194553] [2020-11-30 03:19:00,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:00,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493194553] [2020-11-30 03:19:00,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:00,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:19:00,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247717283] [2020-11-30 03:19:00,520 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:19:00,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:00,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:19:00,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:19:00,540 INFO L87 Difference]: Start difference. First operand 98 states. Second operand 2 states. [2020-11-30 03:19:00,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:00,573 INFO L93 Difference]: Finished difference Result 177 states and 229 transitions. [2020-11-30 03:19:00,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:19:00,574 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-11-30 03:19:00,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:00,587 INFO L225 Difference]: With dead ends: 177 [2020-11-30 03:19:00,588 INFO L226 Difference]: Without dead ends: 90 [2020-11-30 03:19:00,592 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 [2020-11-30 03:19:00,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-11-30 03:19:00,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-11-30 03:19:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-30 03:19:00,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 108 transitions. [2020-11-30 03:19:00,643 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 108 transitions. Word has length 6 [2020-11-30 03:19:00,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:00,644 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 108 transitions. [2020-11-30 03:19:00,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:19:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 108 transitions. [2020-11-30 03:19:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 03:19:00,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:00,646 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 03:19:00,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:19:00,647 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]=== [2020-11-30 03:19:00,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:00,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1751375890, now seen corresponding path program 1 times [2020-11-30 03:19:00,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:00,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952933534] [2020-11-30 03:19:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:00,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:00,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952933534] [2020-11-30 03:19:00,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:00,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 03:19:00,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3351275] [2020-11-30 03:19:00,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:19:00,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:00,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:19:00,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:19:00,731 INFO L87 Difference]: Start difference. First operand 90 states and 108 transitions. Second operand 3 states. [2020-11-30 03:19:00,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:00,931 INFO L93 Difference]: Finished difference Result 177 states and 210 transitions. [2020-11-30 03:19:00,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:19:00,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 03:19:00,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:00,936 INFO L225 Difference]: With dead ends: 177 [2020-11-30 03:19:00,936 INFO L226 Difference]: Without dead ends: 103 [2020-11-30 03:19:00,938 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 [2020-11-30 03:19:00,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-11-30 03:19:00,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 102. [2020-11-30 03:19:00,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 03:19:00,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 121 transitions. [2020-11-30 03:19:00,952 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 121 transitions. Word has length 6 [2020-11-30 03:19:00,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:00,952 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 121 transitions. [2020-11-30 03:19:00,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:19:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 121 transitions. [2020-11-30 03:19:00,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:19:00,954 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:00,954 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:00,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:19:00,955 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]=== [2020-11-30 03:19:00,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:00,956 INFO L82 PathProgramCache]: Analyzing trace with hash -1870895096, now seen corresponding path program 1 times [2020-11-30 03:19:00,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:00,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11886017] [2020-11-30 03:19:00,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:01,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:01,059 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11886017] [2020-11-30 03:19:01,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:01,059 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:19:01,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756597141] [2020-11-30 03:19:01,060 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:19:01,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:01,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:19:01,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:19:01,061 INFO L87 Difference]: Start difference. First operand 102 states and 121 transitions. Second operand 4 states. [2020-11-30 03:19:01,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:01,225 INFO L93 Difference]: Finished difference Result 139 states and 162 transitions. [2020-11-30 03:19:01,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:19:01,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-30 03:19:01,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:01,231 INFO L225 Difference]: With dead ends: 139 [2020-11-30 03:19:01,231 INFO L226 Difference]: Without dead ends: 132 [2020-11-30 03:19:01,232 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 [2020-11-30 03:19:01,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-11-30 03:19:01,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 103. [2020-11-30 03:19:01,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-11-30 03:19:01,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 123 transitions. [2020-11-30 03:19:01,252 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 123 transitions. Word has length 8 [2020-11-30 03:19:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:01,253 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 123 transitions. [2020-11-30 03:19:01,253 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:19:01,253 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2020-11-30 03:19:01,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 03:19:01,255 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:01,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:01,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 03:19:01,257 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]=== [2020-11-30 03:19:01,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:01,258 INFO L82 PathProgramCache]: Analyzing trace with hash 2131794302, now seen corresponding path program 1 times [2020-11-30 03:19:01,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:01,259 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867761614] [2020-11-30 03:19:01,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:01,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:01,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:01,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867761614] [2020-11-30 03:19:01,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:01,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:19:01,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128153149] [2020-11-30 03:19:01,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 03:19:01,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:01,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 03:19:01,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 03:19:01,345 INFO L87 Difference]: Start difference. First operand 103 states and 123 transitions. Second operand 3 states. [2020-11-30 03:19:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:01,485 INFO L93 Difference]: Finished difference Result 131 states and 151 transitions. [2020-11-30 03:19:01,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:19:01,488 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-11-30 03:19:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:01,489 INFO L225 Difference]: With dead ends: 131 [2020-11-30 03:19:01,489 INFO L226 Difference]: Without dead ends: 126 [2020-11-30 03:19:01,490 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 [2020-11-30 03:19:01,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-30 03:19:01,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 95. [2020-11-30 03:19:01,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-30 03:19:01,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 115 transitions. [2020-11-30 03:19:01,521 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 115 transitions. Word has length 9 [2020-11-30 03:19:01,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:01,521 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 115 transitions. [2020-11-30 03:19:01,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 03:19:01,522 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 115 transitions. [2020-11-30 03:19:01,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:19:01,524 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:01,524 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:01,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 03:19:01,525 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]=== [2020-11-30 03:19:01,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:01,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1849411165, now seen corresponding path program 1 times [2020-11-30 03:19:01,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:01,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57595703] [2020-11-30 03:19:01,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:01,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:01,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57595703] [2020-11-30 03:19:01,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:01,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:19:01,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16598706] [2020-11-30 03:19:01,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:19:01,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:01,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:19:01,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:19:01,722 INFO L87 Difference]: Start difference. First operand 95 states and 115 transitions. Second operand 6 states. [2020-11-30 03:19:01,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:01,837 INFO L93 Difference]: Finished difference Result 166 states and 192 transitions. [2020-11-30 03:19:01,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 03:19:01,840 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-30 03:19:01,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:01,842 INFO L225 Difference]: With dead ends: 166 [2020-11-30 03:19:01,842 INFO L226 Difference]: Without dead ends: 140 [2020-11-30 03:19:01,843 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 [2020-11-30 03:19:01,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-30 03:19:01,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 95. [2020-11-30 03:19:01,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-11-30 03:19:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 113 transitions. [2020-11-30 03:19:01,865 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 113 transitions. Word has length 10 [2020-11-30 03:19:01,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:01,866 INFO L481 AbstractCegarLoop]: Abstraction has 95 states and 113 transitions. [2020-11-30 03:19:01,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:19:01,866 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2020-11-30 03:19:01,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:19:01,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:01,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:01,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 03:19:01,868 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]=== [2020-11-30 03:19:01,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:01,869 INFO L82 PathProgramCache]: Analyzing trace with hash -1859277813, now seen corresponding path program 1 times [2020-11-30 03:19:01,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:01,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686053997] [2020-11-30 03:19:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:01,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686053997] [2020-11-30 03:19:01,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:01,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:19:01,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399715015] [2020-11-30 03:19:01,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:19:01,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:01,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:19:01,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:19:01,922 INFO L87 Difference]: Start difference. First operand 95 states and 113 transitions. Second operand 4 states. [2020-11-30 03:19:02,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:02,057 INFO L93 Difference]: Finished difference Result 129 states and 150 transitions. [2020-11-30 03:19:02,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:19:02,061 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 03:19:02,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:02,063 INFO L225 Difference]: With dead ends: 129 [2020-11-30 03:19:02,063 INFO L226 Difference]: Without dead ends: 127 [2020-11-30 03:19:02,063 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 [2020-11-30 03:19:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-11-30 03:19:02,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 98. [2020-11-30 03:19:02,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-11-30 03:19:02,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 117 transitions. [2020-11-30 03:19:02,079 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 117 transitions. Word has length 10 [2020-11-30 03:19:02,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:02,080 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 117 transitions. [2020-11-30 03:19:02,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:19:02,080 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2020-11-30 03:19:02,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:19:02,081 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:02,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:02,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 03:19:02,089 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]=== [2020-11-30 03:19:02,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:02,090 INFO L82 PathProgramCache]: Analyzing trace with hash -1746405168, now seen corresponding path program 1 times [2020-11-30 03:19:02,090 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:02,090 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411783244] [2020-11-30 03:19:02,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:02,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411783244] [2020-11-30 03:19:02,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:02,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:19:02,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764179575] [2020-11-30 03:19:02,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:19:02,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:02,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:19:02,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:19:02,157 INFO L87 Difference]: Start difference. First operand 98 states and 117 transitions. Second operand 4 states. [2020-11-30 03:19:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:02,272 INFO L93 Difference]: Finished difference Result 130 states and 150 transitions. [2020-11-30 03:19:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:19:02,274 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-30 03:19:02,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:02,275 INFO L225 Difference]: With dead ends: 130 [2020-11-30 03:19:02,275 INFO L226 Difference]: Without dead ends: 128 [2020-11-30 03:19:02,276 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 [2020-11-30 03:19:02,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-11-30 03:19:02,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 100. [2020-11-30 03:19:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-11-30 03:19:02,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 119 transitions. [2020-11-30 03:19:02,293 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 119 transitions. Word has length 10 [2020-11-30 03:19:02,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:02,294 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 119 transitions. [2020-11-30 03:19:02,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:19:02,294 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 119 transitions. [2020-11-30 03:19:02,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 03:19:02,296 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:02,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:02,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-30 03:19:02,298 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]=== [2020-11-30 03:19:02,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:02,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1122148882, now seen corresponding path program 1 times [2020-11-30 03:19:02,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:02,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236782337] [2020-11-30 03:19:02,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:02,351 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236782337] [2020-11-30 03:19:02,351 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:02,351 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:19:02,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341236672] [2020-11-30 03:19:02,352 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:19:02,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:02,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:19:02,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:19:02,353 INFO L87 Difference]: Start difference. First operand 100 states and 119 transitions. Second operand 4 states. [2020-11-30 03:19:02,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:02,512 INFO L93 Difference]: Finished difference Result 213 states and 246 transitions. [2020-11-30 03:19:02,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:19:02,517 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-30 03:19:02,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:02,518 INFO L225 Difference]: With dead ends: 213 [2020-11-30 03:19:02,518 INFO L226 Difference]: Without dead ends: 140 [2020-11-30 03:19:02,519 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 [2020-11-30 03:19:02,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-11-30 03:19:02,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 105. [2020-11-30 03:19:02,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-11-30 03:19:02,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 125 transitions. [2020-11-30 03:19:02,529 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 125 transitions. Word has length 11 [2020-11-30 03:19:02,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:02,529 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 125 transitions. [2020-11-30 03:19:02,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:19:02,530 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 125 transitions. [2020-11-30 03:19:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:19:02,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:02,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:02,542 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-30 03:19:02,542 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]=== [2020-11-30 03:19:02,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:02,543 INFO L82 PathProgramCache]: Analyzing trace with hash 827871603, now seen corresponding path program 1 times [2020-11-30 03:19:02,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:02,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954385204] [2020-11-30 03:19:02,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:02,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:02,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:02,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954385204] [2020-11-30 03:19:02,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:02,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:19:02,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934358742] [2020-11-30 03:19:02,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:19:02,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:02,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:19:02,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:19:02,604 INFO L87 Difference]: Start difference. First operand 105 states and 125 transitions. Second operand 4 states. [2020-11-30 03:19:02,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:02,740 INFO L93 Difference]: Finished difference Result 140 states and 160 transitions. [2020-11-30 03:19:02,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:19:02,740 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-30 03:19:02,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:02,742 INFO L225 Difference]: With dead ends: 140 [2020-11-30 03:19:02,742 INFO L226 Difference]: Without dead ends: 138 [2020-11-30 03:19:02,743 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 [2020-11-30 03:19:02,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-11-30 03:19:02,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 107. [2020-11-30 03:19:02,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-11-30 03:19:02,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 127 transitions. [2020-11-30 03:19:02,755 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 127 transitions. Word has length 12 [2020-11-30 03:19:02,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:02,756 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 127 transitions. [2020-11-30 03:19:02,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:19:02,758 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 127 transitions. [2020-11-30 03:19:02,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:19:02,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:02,760 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:02,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-30 03:19:02,762 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]=== [2020-11-30 03:19:02,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:02,763 INFO L82 PathProgramCache]: Analyzing trace with hash -2045528894, now seen corresponding path program 1 times [2020-11-30 03:19:02,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:02,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346390138] [2020-11-30 03:19:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:02,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:02,823 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346390138] [2020-11-30 03:19:02,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202157812] [2020-11-30 03:19:02,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c90084c1-f806-4e6c-9559-457f94c54e53/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 [2020-11-30 03:19:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:02,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 03:19:02,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:19:03,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:03,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:19:03,160 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:03,160 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-11-30 03:19:03,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [2] total 7 [2020-11-30 03:19:03,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553409574] [2020-11-30 03:19:03,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:19:03,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:03,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:19:03,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:19:03,162 INFO L87 Difference]: Start difference. First operand 107 states and 127 transitions. Second operand 6 states. [2020-11-30 03:19:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:03,345 INFO L93 Difference]: Finished difference Result 164 states and 186 transitions. [2020-11-30 03:19:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:19:03,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-11-30 03:19:03,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:03,348 INFO L225 Difference]: With dead ends: 164 [2020-11-30 03:19:03,348 INFO L226 Difference]: Without dead ends: 161 [2020-11-30 03:19:03,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:19:03,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-11-30 03:19:03,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 94. [2020-11-30 03:19:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-11-30 03:19:03,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 112 transitions. [2020-11-30 03:19:03,363 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 112 transitions. Word has length 12 [2020-11-30 03:19:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:03,364 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 112 transitions. [2020-11-30 03:19:03,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:19:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2020-11-30 03:19:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:19:03,365 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:03,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:03,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-11-30 03:19:03,583 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]=== [2020-11-30 03:19:03,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:03,583 INFO L82 PathProgramCache]: Analyzing trace with hash -364020413, now seen corresponding path program 1 times [2020-11-30 03:19:03,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:03,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58550463] [2020-11-30 03:19:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:03,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:03,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58550463] [2020-11-30 03:19:03,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:03,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 03:19:03,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005691335] [2020-11-30 03:19:03,657 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:19:03,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:03,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:19:03,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:19:03,659 INFO L87 Difference]: Start difference. First operand 94 states and 112 transitions. Second operand 4 states. [2020-11-30 03:19:03,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:03,799 INFO L93 Difference]: Finished difference Result 152 states and 171 transitions. [2020-11-30 03:19:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:19:03,800 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 03:19:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:03,802 INFO L225 Difference]: With dead ends: 152 [2020-11-30 03:19:03,802 INFO L226 Difference]: Without dead ends: 149 [2020-11-30 03:19:03,803 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 [2020-11-30 03:19:03,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-11-30 03:19:03,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 82. [2020-11-30 03:19:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-30 03:19:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 100 transitions. [2020-11-30 03:19:03,816 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 100 transitions. Word has length 13 [2020-11-30 03:19:03,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:03,817 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 100 transitions. [2020-11-30 03:19:03,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:19:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 100 transitions. [2020-11-30 03:19:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 03:19:03,818 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:03,818 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:03,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-30 03:19:03,818 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]=== [2020-11-30 03:19:03,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:03,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1023910804, now seen corresponding path program 1 times [2020-11-30 03:19:03,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:03,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767763332] [2020-11-30 03:19:03,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:03,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:04,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767763332] [2020-11-30 03:19:04,040 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:04,040 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:19:04,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744328926] [2020-11-30 03:19:04,041 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 03:19:04,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:04,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 03:19:04,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-30 03:19:04,042 INFO L87 Difference]: Start difference. First operand 82 states and 100 transitions. Second operand 6 states. [2020-11-30 03:19:04,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:04,143 INFO L93 Difference]: Finished difference Result 147 states and 169 transitions. [2020-11-30 03:19:04,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:19:04,144 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 03:19:04,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:04,146 INFO L225 Difference]: With dead ends: 147 [2020-11-30 03:19:04,146 INFO L226 Difference]: Without dead ends: 123 [2020-11-30 03:19:04,148 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 [2020-11-30 03:19:04,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-11-30 03:19:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 90. [2020-11-30 03:19:04,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-11-30 03:19:04,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 110 transitions. [2020-11-30 03:19:04,158 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 110 transitions. Word has length 14 [2020-11-30 03:19:04,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:04,158 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 110 transitions. [2020-11-30 03:19:04,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 03:19:04,158 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 110 transitions. [2020-11-30 03:19:04,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-30 03:19:04,162 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:04,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:04,162 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-30 03:19:04,163 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]=== [2020-11-30 03:19:04,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:04,163 INFO L82 PathProgramCache]: Analyzing trace with hash -952880002, now seen corresponding path program 1 times [2020-11-30 03:19:04,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:04,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065307917] [2020-11-30 03:19:04,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:04,567 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 9 [2020-11-30 03:19:04,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:04,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065307917] [2020-11-30 03:19:04,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:04,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:19:04,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204672616] [2020-11-30 03:19:04,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 03:19:04,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:04,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 03:19:04,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:19:04,571 INFO L87 Difference]: Start difference. First operand 90 states and 110 transitions. Second operand 7 states. [2020-11-30 03:19:04,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:04,817 INFO L93 Difference]: Finished difference Result 123 states and 144 transitions. [2020-11-30 03:19:04,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:19:04,819 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-11-30 03:19:04,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:04,820 INFO L225 Difference]: With dead ends: 123 [2020-11-30 03:19:04,820 INFO L226 Difference]: Without dead ends: 122 [2020-11-30 03:19:04,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-11-30 03:19:04,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-11-30 03:19:04,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 102. [2020-11-30 03:19:04,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 03:19:04,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 123 transitions. [2020-11-30 03:19:04,835 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 123 transitions. Word has length 16 [2020-11-30 03:19:04,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:04,835 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 123 transitions. [2020-11-30 03:19:04,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 03:19:04,836 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 123 transitions. [2020-11-30 03:19:04,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 03:19:04,836 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:04,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:04,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-30 03:19:04,837 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]=== [2020-11-30 03:19:04,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:04,838 INFO L82 PathProgramCache]: Analyzing trace with hash -889638240, now seen corresponding path program 1 times [2020-11-30 03:19:04,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:04,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381615677] [2020-11-30 03:19:04,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:05,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381615677] [2020-11-30 03:19:05,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:05,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-30 03:19:05,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682546164] [2020-11-30 03:19:05,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 03:19:05,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:05,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 03:19:05,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 03:19:05,023 INFO L87 Difference]: Start difference. First operand 102 states and 123 transitions. Second operand 5 states. [2020-11-30 03:19:05,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:05,167 INFO L93 Difference]: Finished difference Result 122 states and 143 transitions. [2020-11-30 03:19:05,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:19:05,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-11-30 03:19:05,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:05,170 INFO L225 Difference]: With dead ends: 122 [2020-11-30 03:19:05,170 INFO L226 Difference]: Without dead ends: 83 [2020-11-30 03:19:05,171 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 [2020-11-30 03:19:05,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-11-30 03:19:05,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2020-11-30 03:19:05,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-11-30 03:19:05,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 98 transitions. [2020-11-30 03:19:05,182 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 98 transitions. Word has length 18 [2020-11-30 03:19:05,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:05,182 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 98 transitions. [2020-11-30 03:19:05,182 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 03:19:05,183 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 98 transitions. [2020-11-30 03:19:05,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-30 03:19:05,183 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:05,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:19:05,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-30 03:19:05,184 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]=== [2020-11-30 03:19:05,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:05,185 INFO L82 PathProgramCache]: Analyzing trace with hash 501252997, now seen corresponding path program 1 times [2020-11-30 03:19:05,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:05,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713658048] [2020-11-30 03:19:05,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:05,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:05,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:05,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713658048] [2020-11-30 03:19:05,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:05,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:19:05,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224054479] [2020-11-30 03:19:05,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 03:19:05,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:05,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 03:19:05,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:19:05,431 INFO L87 Difference]: Start difference. First operand 82 states and 98 transitions. Second operand 7 states. [2020-11-30 03:19:05,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:05,591 INFO L93 Difference]: Finished difference Result 170 states and 191 transitions. [2020-11-30 03:19:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 03:19:05,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-30 03:19:05,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:05,594 INFO L225 Difference]: With dead ends: 170 [2020-11-30 03:19:05,594 INFO L226 Difference]: Without dead ends: 169 [2020-11-30 03:19:05,597 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-11-30 03:19:05,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-11-30 03:19:05,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 102. [2020-11-30 03:19:05,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-11-30 03:19:05,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 122 transitions. [2020-11-30 03:19:05,611 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 122 transitions. Word has length 18 [2020-11-30 03:19:05,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:05,611 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 122 transitions. [2020-11-30 03:19:05,611 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 03:19:05,611 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 122 transitions. [2020-11-30 03:19:05,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 03:19:05,612 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:05,613 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] [2020-11-30 03:19:05,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-30 03:19:05,613 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]=== [2020-11-30 03:19:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:05,614 INFO L82 PathProgramCache]: Analyzing trace with hash 667802599, now seen corresponding path program 1 times [2020-11-30 03:19:05,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:05,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482685496] [2020-11-30 03:19:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:05,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482685496] [2020-11-30 03:19:05,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:05,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:19:05,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488195208] [2020-11-30 03:19:05,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 03:19:05,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:05,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 03:19:05,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:19:05,854 INFO L87 Difference]: Start difference. First operand 102 states and 122 transitions. Second operand 7 states. [2020-11-30 03:19:06,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:06,044 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2020-11-30 03:19:06,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:19:06,047 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-11-30 03:19:06,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:06,049 INFO L225 Difference]: With dead ends: 169 [2020-11-30 03:19:06,049 INFO L226 Difference]: Without dead ends: 168 [2020-11-30 03:19:06,050 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 [2020-11-30 03:19:06,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-11-30 03:19:06,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 108. [2020-11-30 03:19:06,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-11-30 03:19:06,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 128 transitions. [2020-11-30 03:19:06,064 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 128 transitions. Word has length 20 [2020-11-30 03:19:06,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:06,064 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 128 transitions. [2020-11-30 03:19:06,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 03:19:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 128 transitions. [2020-11-30 03:19:06,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-30 03:19:06,065 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:06,066 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] [2020-11-30 03:19:06,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-30 03:19:06,066 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]=== [2020-11-30 03:19:06,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:06,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1340960847, now seen corresponding path program 1 times [2020-11-30 03:19:06,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:06,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505805001] [2020-11-30 03:19:06,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:06,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505805001] [2020-11-30 03:19:06,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:06,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-30 03:19:06,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995079632] [2020-11-30 03:19:06,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-30 03:19:06,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:06,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 03:19:06,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-30 03:19:06,324 INFO L87 Difference]: Start difference. First operand 108 states and 128 transitions. Second operand 7 states. [2020-11-30 03:19:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:06,451 INFO L93 Difference]: Finished difference Result 214 states and 246 transitions. [2020-11-30 03:19:06,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 03:19:06,452 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-11-30 03:19:06,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:06,454 INFO L225 Difference]: With dead ends: 214 [2020-11-30 03:19:06,454 INFO L226 Difference]: Without dead ends: 213 [2020-11-30 03:19:06,455 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 [2020-11-30 03:19:06,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-30 03:19:06,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 132. [2020-11-30 03:19:06,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-11-30 03:19:06,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 159 transitions. [2020-11-30 03:19:06,471 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 159 transitions. Word has length 20 [2020-11-30 03:19:06,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:06,472 INFO L481 AbstractCegarLoop]: Abstraction has 132 states and 159 transitions. [2020-11-30 03:19:06,472 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-30 03:19:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 159 transitions. [2020-11-30 03:19:06,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-30 03:19:06,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:06,473 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] [2020-11-30 03:19:06,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-30 03:19:06,474 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]=== [2020-11-30 03:19:06,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:06,474 INFO L82 PathProgramCache]: Analyzing trace with hash -772948496, now seen corresponding path program 1 times [2020-11-30 03:19:06,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:06,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392823218] [2020-11-30 03:19:06,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:06,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392823218] [2020-11-30 03:19:06,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:06,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 03:19:06,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005278584] [2020-11-30 03:19:06,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:19:06,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:06,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:19:06,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:19:06,886 INFO L87 Difference]: Start difference. First operand 132 states and 159 transitions. Second operand 10 states. [2020-11-30 03:19:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:08,090 INFO L93 Difference]: Finished difference Result 216 states and 239 transitions. [2020-11-30 03:19:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-30 03:19:08,090 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-11-30 03:19:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:08,092 INFO L225 Difference]: With dead ends: 216 [2020-11-30 03:19:08,093 INFO L226 Difference]: Without dead ends: 213 [2020-11-30 03:19:08,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-11-30 03:19:08,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-11-30 03:19:08,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 140. [2020-11-30 03:19:08,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-11-30 03:19:08,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2020-11-30 03:19:08,114 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 21 [2020-11-30 03:19:08,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:08,115 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2020-11-30 03:19:08,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:19:08,115 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2020-11-30 03:19:08,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 03:19:08,116 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:08,116 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] [2020-11-30 03:19:08,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-30 03:19:08,117 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]=== [2020-11-30 03:19:08,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:08,117 INFO L82 PathProgramCache]: Analyzing trace with hash 1808400718, now seen corresponding path program 1 times [2020-11-30 03:19:08,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:08,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913750220] [2020-11-30 03:19:08,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:19:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:19:08,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913750220] [2020-11-30 03:19:08,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:19:08,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-30 03:19:08,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169958477] [2020-11-30 03:19:08,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:19:08,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:19:08,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:19:08,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:19:08,465 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand 10 states. [2020-11-30 03:19:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:19:09,200 INFO L93 Difference]: Finished difference Result 191 states and 223 transitions. [2020-11-30 03:19:09,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-30 03:19:09,201 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2020-11-30 03:19:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:19:09,203 INFO L225 Difference]: With dead ends: 191 [2020-11-30 03:19:09,203 INFO L226 Difference]: Without dead ends: 184 [2020-11-30 03:19:09,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2020-11-30 03:19:09,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2020-11-30 03:19:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 152. [2020-11-30 03:19:09,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-11-30 03:19:09,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 183 transitions. [2020-11-30 03:19:09,233 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 183 transitions. Word has length 22 [2020-11-30 03:19:09,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:19:09,234 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 183 transitions. [2020-11-30 03:19:09,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:19:09,234 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 183 transitions. [2020-11-30 03:19:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-30 03:19:09,235 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:19:09,236 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] [2020-11-30 03:19:09,236 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-30 03:19:09,236 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]=== [2020-11-30 03:19:09,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:19:09,237 INFO L82 PathProgramCache]: Analyzing trace with hash -745623023, now seen corresponding path program 1 times [2020-11-30 03:19:09,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:19:09,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41442538] [2020-11-30 03:19:09,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:19:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:19:09,288 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:19:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:19:09,329 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:19:09,375 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:19:09,376 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:19:09,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-30 03:19:09,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:19:09 BoogieIcfgContainer [2020-11-30 03:19:09,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:19:09,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:19:09,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:19:09,455 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:19:09,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:19:00" (3/4) ... [2020-11-30 03:19:09,460 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:19:09,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:19:09,462 INFO L168 Benchmark]: Toolchain (without parser) took 11802.41 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 79.0 MB in the beginning and 64.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 80.7 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:09,464 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:19:09,465 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.90 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 83.3 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:09,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.50 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 81.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:09,471 INFO L168 Benchmark]: Boogie Preprocessor took 53.25 ms. Allocated memory is still 111.1 MB. Free memory was 81.2 MB in the beginning and 79.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:09,471 INFO L168 Benchmark]: RCFGBuilder took 1932.38 ms. Allocated memory is still 111.1 MB. Free memory was 79.1 MB in the beginning and 48.9 MB in the end (delta: 30.2 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:09,472 INFO L168 Benchmark]: TraceAbstraction took 9251.77 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 48.2 MB in the beginning and 64.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:19:09,473 INFO L168 Benchmark]: Witness Printer took 6.05 ms. Allocated memory is still 176.2 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:19:09,480 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 33.8 MB in the beginning and 33.7 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 467.90 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 83.3 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.50 ms. Allocated memory is still 111.1 MB. Free memory was 83.3 MB in the beginning and 81.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.25 ms. Allocated memory is still 111.1 MB. Free memory was 81.2 MB in the beginning and 79.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1932.38 ms. Allocated memory is still 111.1 MB. Free memory was 79.1 MB in the beginning and 48.9 MB in the end (delta: 30.2 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9251.77 ms. Allocated memory was 111.1 MB in the beginning and 176.2 MB in the end (delta: 65.0 MB). Free memory was 48.2 MB in the beginning and 64.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 51.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.05 ms. Allocated memory is still 176.2 MB. Free memory is still 64.3 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: 9.0s, OverallIterations: 20, TraceHistogramMax: 2, AutomataDifference: 4.5s, 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, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 137 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 3.1s 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: 0.3s AutomataMinimizationTime, 19 MinimizatonAttempts, 730 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.7s 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...