./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/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 b5fc2694b4e742534272cd7ebdf39f18cbd96fd6 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/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 0.2.0-7b2dab5 [2020-12-09 06:59:42,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 06:59:42,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 06:59:42,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 06:59:42,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 06:59:42,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 06:59:42,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 06:59:42,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 06:59:42,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 06:59:42,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 06:59:42,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 06:59:42,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 06:59:42,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 06:59:42,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 06:59:42,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 06:59:42,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 06:59:42,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 06:59:42,243 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 06:59:42,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 06:59:42,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 06:59:42,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 06:59:42,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 06:59:42,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 06:59:42,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 06:59:42,254 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 06:59:42,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 06:59:42,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 06:59:42,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 06:59:42,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 06:59:42,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 06:59:42,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 06:59:42,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 06:59:42,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 06:59:42,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 06:59:42,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 06:59:42,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 06:59:42,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 06:59:42,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 06:59:42,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 06:59:42,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 06:59:42,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 06:59:42,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-09 06:59:42,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 06:59:42,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 06:59:42,281 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 06:59:42,281 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 06:59:42,281 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 06:59:42,281 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 06:59:42,281 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 06:59:42,282 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 06:59:42,282 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 06:59:42,282 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 06:59:42,282 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 06:59:42,282 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 06:59:42,282 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 06:59:42,282 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 06:59:42,282 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 06:59:42,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 06:59:42,283 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 06:59:42,283 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 06:59:42,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 06:59:42,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 06:59:42,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 06:59:42,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 06:59:42,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 06:59:42,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 06:59:42,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 06:59:42,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 06:59:42,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 06:59:42,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 06:59:42,285 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 06:59:42,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 06:59:42,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 06:59:42,286 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 06:59:42,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 06:59:42,286 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_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5fc2694b4e742534272cd7ebdf39f18cbd96fd6 [2020-12-09 06:59:42,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 06:59:42,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 06:59:42,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 06:59:42,481 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 06:59:42,482 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 06:59:42,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2020-12-09 06:59:42,528 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/data/3b1347c04/430ea264d08840889b5ee2c9abdd499f/FLAGe25a7f522 [2020-12-09 06:59:42,901 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 06:59:42,902 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c [2020-12-09 06:59:42,909 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/data/3b1347c04/430ea264d08840889b5ee2c9abdd499f/FLAGe25a7f522 [2020-12-09 06:59:42,918 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/data/3b1347c04/430ea264d08840889b5ee2c9abdd499f [2020-12-09 06:59:42,920 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 06:59:42,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 06:59:42,922 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 06:59:42,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 06:59:42,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 06:59:42,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:59:42" (1/1) ... [2020-12-09 06:59:42,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6573adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:42, skipping insertion in model container [2020-12-09 06:59:42,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:59:42" (1/1) ... [2020-12-09 06:59:42,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 06:59:42,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 06:59:43,043 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[422,435] [2020-12-09 06:59:43,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:59:43,083 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 06:59:43,091 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/sv-benchmarks/c/bitvector/soft_float_5.c.cil.c[422,435] [2020-12-09 06:59:43,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 06:59:43,123 INFO L208 MainTranslator]: Completed translation [2020-12-09 06:59:43,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43 WrapperNode [2020-12-09 06:59:43,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 06:59:43,124 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 06:59:43,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 06:59:43,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 06:59:43,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 06:59:43,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 06:59:43,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 06:59:43,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 06:59:43,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,171 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... [2020-12-09 06:59:43,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 06:59:43,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 06:59:43,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 06:59:43,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 06:59:43,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/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 [2020-12-09 06:59:43,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 06:59:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 06:59:43,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 06:59:43,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 06:59:43,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 06:59:43,824 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-09 06:59:43,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:59:43 BoogieIcfgContainer [2020-12-09 06:59:43,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 06:59:43,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 06:59:43,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 06:59:43,830 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 06:59:43,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:59:42" (1/3) ... [2020-12-09 06:59:43,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364e8d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:59:43, skipping insertion in model container [2020-12-09 06:59:43,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:59:43" (2/3) ... [2020-12-09 06:59:43,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364e8d85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:59:43, skipping insertion in model container [2020-12-09 06:59:43,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:59:43" (3/3) ... [2020-12-09 06:59:43,832 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_5.c.cil.c [2020-12-09 06:59:43,841 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 06:59:43,844 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 46 error locations. [2020-12-09 06:59:43,851 INFO L253 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2020-12-09 06:59:43,868 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 06:59:43,868 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 06:59:43,869 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 06:59:43,869 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 06:59:43,869 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 06:59:43,869 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 06:59:43,869 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 06:59:43,869 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 06:59:43,882 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2020-12-09 06:59:43,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 06:59:43,886 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:43,886 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 06:59:43,887 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:43,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:43,891 INFO L82 PathProgramCache]: Analyzing trace with hash 492997770, now seen corresponding path program 1 times [2020-12-09 06:59:43,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:43,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915724720] [2020-12-09 06:59:43,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:43,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915724720] [2020-12-09 06:59:43,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:43,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:59:43,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775599018] [2020-12-09 06:59:43,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 06:59:43,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 06:59:44,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 06:59:44,003 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 2 states. [2020-12-09 06:59:44,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,024 INFO L93 Difference]: Finished difference Result 265 states and 333 transitions. [2020-12-09 06:59:44,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 06:59:44,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-12-09 06:59:44,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,033 INFO L225 Difference]: With dead ends: 265 [2020-12-09 06:59:44,033 INFO L226 Difference]: Without dead ends: 138 [2020-12-09 06:59:44,035 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 [2020-12-09 06:59:44,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2020-12-09 06:59:44,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2020-12-09 06:59:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-12-09 06:59:44,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 162 transitions. [2020-12-09 06:59:44,069 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 162 transitions. Word has length 6 [2020-12-09 06:59:44,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,070 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 162 transitions. [2020-12-09 06:59:44,070 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 06:59:44,070 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 162 transitions. [2020-12-09 06:59:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 06:59:44,070 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,070 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,071 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 06:59:44,076 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,078 INFO L82 PathProgramCache]: Analyzing trace with hash 491693246, now seen corresponding path program 1 times [2020-12-09 06:59:44,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146989745] [2020-12-09 06:59:44,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:44,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146989745] [2020-12-09 06:59:44,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-12-09 06:59:44,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516225565] [2020-12-09 06:59:44,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:59:44,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:59:44,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:59:44,124 INFO L87 Difference]: Start difference. First operand 138 states and 162 transitions. Second operand 3 states. [2020-12-09 06:59:44,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,251 INFO L93 Difference]: Finished difference Result 288 states and 342 transitions. [2020-12-09 06:59:44,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:59:44,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-09 06:59:44,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,253 INFO L225 Difference]: With dead ends: 288 [2020-12-09 06:59:44,253 INFO L226 Difference]: Without dead ends: 168 [2020-12-09 06:59:44,255 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 [2020-12-09 06:59:44,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2020-12-09 06:59:44,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 164. [2020-12-09 06:59:44,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-12-09 06:59:44,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 190 transitions. [2020-12-09 06:59:44,268 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 190 transitions. Word has length 6 [2020-12-09 06:59:44,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,269 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 190 transitions. [2020-12-09 06:59:44,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:59:44,269 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 190 transitions. [2020-12-09 06:59:44,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 06:59:44,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,270 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 06:59:44,271 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,271 INFO L82 PathProgramCache]: Analyzing trace with hash -356716675, now seen corresponding path program 1 times [2020-12-09 06:59:44,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233908919] [2020-12-09 06:59:44,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:44,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233908919] [2020-12-09 06:59:44,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:59:44,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186278055] [2020-12-09 06:59:44,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:59:44,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:59:44,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:59:44,316 INFO L87 Difference]: Start difference. First operand 164 states and 190 transitions. Second operand 3 states. [2020-12-09 06:59:44,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,360 INFO L93 Difference]: Finished difference Result 289 states and 334 transitions. [2020-12-09 06:59:44,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:59:44,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-09 06:59:44,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,361 INFO L225 Difference]: With dead ends: 289 [2020-12-09 06:59:44,362 INFO L226 Difference]: Without dead ends: 127 [2020-12-09 06:59:44,362 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:59:44,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-12-09 06:59:44,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2020-12-09 06:59:44,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-12-09 06:59:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 146 transitions. [2020-12-09 06:59:44,370 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 146 transitions. Word has length 9 [2020-12-09 06:59:44,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,370 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 146 transitions. [2020-12-09 06:59:44,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:59:44,370 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 146 transitions. [2020-12-09 06:59:44,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 06:59:44,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,371 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 06:59:44,371 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,372 INFO L82 PathProgramCache]: Analyzing trace with hash 932171426, now seen corresponding path program 1 times [2020-12-09 06:59:44,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896501771] [2020-12-09 06:59:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:44,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896501771] [2020-12-09 06:59:44,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:59:44,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465320356] [2020-12-09 06:59:44,411 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:59:44,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:59:44,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:44,412 INFO L87 Difference]: Start difference. First operand 127 states and 146 transitions. Second operand 4 states. [2020-12-09 06:59:44,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,488 INFO L93 Difference]: Finished difference Result 178 states and 201 transitions. [2020-12-09 06:59:44,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:59:44,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-12-09 06:59:44,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,490 INFO L225 Difference]: With dead ends: 178 [2020-12-09 06:59:44,490 INFO L226 Difference]: Without dead ends: 171 [2020-12-09 06:59:44,491 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 [2020-12-09 06:59:44,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-12-09 06:59:44,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 128. [2020-12-09 06:59:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-12-09 06:59:44,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2020-12-09 06:59:44,502 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 10 [2020-12-09 06:59:44,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,502 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2020-12-09 06:59:44,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:59:44,502 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2020-12-09 06:59:44,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 06:59:44,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-09 06:59:44,504 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1167456649, now seen corresponding path program 1 times [2020-12-09 06:59:44,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284845882] [2020-12-09 06:59:44,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:44,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284845882] [2020-12-09 06:59:44,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:59:44,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926472113] [2020-12-09 06:59:44,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:59:44,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:59:44,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:59:44,537 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 3 states. [2020-12-09 06:59:44,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,604 INFO L93 Difference]: Finished difference Result 169 states and 190 transitions. [2020-12-09 06:59:44,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:59:44,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-09 06:59:44,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,606 INFO L225 Difference]: With dead ends: 169 [2020-12-09 06:59:44,606 INFO L226 Difference]: Without dead ends: 163 [2020-12-09 06:59:44,606 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 [2020-12-09 06:59:44,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-12-09 06:59:44,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 123. [2020-12-09 06:59:44,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-12-09 06:59:44,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2020-12-09 06:59:44,614 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 11 [2020-12-09 06:59:44,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,614 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2020-12-09 06:59:44,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:59:44,614 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2020-12-09 06:59:44,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 06:59:44,615 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,615 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-09 06:59:44,615 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1081754734, now seen corresponding path program 1 times [2020-12-09 06:59:44,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,616 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486070343] [2020-12-09 06:59:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:44,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486070343] [2020-12-09 06:59:44,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:59:44,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039192422] [2020-12-09 06:59:44,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 06:59:44,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 06:59:44,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:59:44,645 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 3 states. [2020-12-09 06:59:44,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,686 INFO L93 Difference]: Finished difference Result 211 states and 244 transitions. [2020-12-09 06:59:44,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 06:59:44,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-09 06:59:44,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,687 INFO L225 Difference]: With dead ends: 211 [2020-12-09 06:59:44,688 INFO L226 Difference]: Without dead ends: 107 [2020-12-09 06:59:44,688 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 06:59:44,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-09 06:59:44,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2020-12-09 06:59:44,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-12-09 06:59:44,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2020-12-09 06:59:44,694 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 11 [2020-12-09 06:59:44,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,694 INFO L481 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2020-12-09 06:59:44,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 06:59:44,695 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2020-12-09 06:59:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 06:59:44,695 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,695 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-09 06:59:44,696 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,696 INFO L82 PathProgramCache]: Analyzing trace with hash -342570633, now seen corresponding path program 1 times [2020-12-09 06:59:44,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619865253] [2020-12-09 06:59:44,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:44,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619865253] [2020-12-09 06:59:44,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:59:44,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859005819] [2020-12-09 06:59:44,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:59:44,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:59:44,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:44,731 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 4 states. [2020-12-09 06:59:44,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,808 INFO L93 Difference]: Finished difference Result 240 states and 271 transitions. [2020-12-09 06:59:44,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:59:44,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-12-09 06:59:44,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,809 INFO L225 Difference]: With dead ends: 240 [2020-12-09 06:59:44,809 INFO L226 Difference]: Without dead ends: 153 [2020-12-09 06:59:44,810 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 [2020-12-09 06:59:44,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-12-09 06:59:44,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 115. [2020-12-09 06:59:44,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-09 06:59:44,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 132 transitions. [2020-12-09 06:59:44,813 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 132 transitions. Word has length 13 [2020-12-09 06:59:44,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,814 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 132 transitions. [2020-12-09 06:59:44,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:59:44,814 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 132 transitions. [2020-12-09 06:59:44,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-09 06:59:44,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-09 06:59:44,814 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2029754847, now seen corresponding path program 1 times [2020-12-09 06:59:44,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970000105] [2020-12-09 06:59:44,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:44,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970000105] [2020-12-09 06:59:44,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:59:44,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172361176] [2020-12-09 06:59:44,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:59:44,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:59:44,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:44,838 INFO L87 Difference]: Start difference. First operand 115 states and 132 transitions. Second operand 4 states. [2020-12-09 06:59:44,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:44,900 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2020-12-09 06:59:44,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:59:44,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-09 06:59:44,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:44,901 INFO L225 Difference]: With dead ends: 150 [2020-12-09 06:59:44,902 INFO L226 Difference]: Without dead ends: 149 [2020-12-09 06:59:44,902 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:44,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2020-12-09 06:59:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 114. [2020-12-09 06:59:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-12-09 06:59:44,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 130 transitions. [2020-12-09 06:59:44,905 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 130 transitions. Word has length 14 [2020-12-09 06:59:44,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:44,905 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 130 transitions. [2020-12-09 06:59:44,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:59:44,906 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 130 transitions. [2020-12-09 06:59:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 06:59:44,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:44,906 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:44,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-09 06:59:44,906 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:44,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:44,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1081297816, now seen corresponding path program 1 times [2020-12-09 06:59:44,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:44,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046410999] [2020-12-09 06:59:44,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:44,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:44,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-09 06:59:44,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046410999] [2020-12-09 06:59:44,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:44,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 06:59:44,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052557312] [2020-12-09 06:59:44,930 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:59:44,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:44,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:59:44,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:44,931 INFO L87 Difference]: Start difference. First operand 114 states and 130 transitions. Second operand 4 states. [2020-12-09 06:59:45,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:45,008 INFO L93 Difference]: Finished difference Result 202 states and 223 transitions. [2020-12-09 06:59:45,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:59:45,009 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-12-09 06:59:45,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:45,010 INFO L225 Difference]: With dead ends: 202 [2020-12-09 06:59:45,010 INFO L226 Difference]: Without dead ends: 196 [2020-12-09 06:59:45,010 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 [2020-12-09 06:59:45,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2020-12-09 06:59:45,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 117. [2020-12-09 06:59:45,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-09 06:59:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 136 transitions. [2020-12-09 06:59:45,014 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 136 transitions. Word has length 18 [2020-12-09 06:59:45,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:45,014 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 136 transitions. [2020-12-09 06:59:45,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:59:45,015 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 136 transitions. [2020-12-09 06:59:45,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-09 06:59:45,015 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:45,015 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, 1] [2020-12-09 06:59:45,015 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-09 06:59:45,016 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:45,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:45,016 INFO L82 PathProgramCache]: Analyzing trace with hash -926259608, now seen corresponding path program 1 times [2020-12-09 06:59:45,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:45,016 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286027707] [2020-12-09 06:59:45,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:45,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:45,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:45,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286027707] [2020-12-09 06:59:45,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:45,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 06:59:45,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928595112] [2020-12-09 06:59:45,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:59:45,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:45,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:59:45,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:45,059 INFO L87 Difference]: Start difference. First operand 117 states and 136 transitions. Second operand 4 states. [2020-12-09 06:59:45,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:45,110 INFO L93 Difference]: Finished difference Result 219 states and 254 transitions. [2020-12-09 06:59:45,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:59:45,110 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-12-09 06:59:45,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:45,111 INFO L225 Difference]: With dead ends: 219 [2020-12-09 06:59:45,111 INFO L226 Difference]: Without dead ends: 119 [2020-12-09 06:59:45,112 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-12-09 06:59:45,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2020-12-09 06:59:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-12-09 06:59:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-12-09 06:59:45,115 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 23 [2020-12-09 06:59:45,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:45,115 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-12-09 06:59:45,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:59:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-12-09 06:59:45,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 06:59:45,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:45,116 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:45,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-09 06:59:45,117 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:45,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:45,117 INFO L82 PathProgramCache]: Analyzing trace with hash 469410557, now seen corresponding path program 1 times [2020-12-09 06:59:45,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:45,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176157952] [2020-12-09 06:59:45,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:45,147 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:45,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176157952] [2020-12-09 06:59:45,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214653994] [2020-12-09 06:59:45,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/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 [2020-12-09 06:59:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:45,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:59:45,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:59:45,260 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:45,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:59:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:45,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1100345399] [2020-12-09 06:59:45,322 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2020-12-09 06:59:45,322 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 06:59:45,325 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 06:59:45,329 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 06:59:45,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 06:59:45,643 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 06:59:45,766 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 06:59:45,906 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 06:59:46,027 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 06:59:46,260 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-09 06:59:46,759 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2020-12-09 06:59:46,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 06:59:46,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [5, 5, 5] total 21 [2020-12-09 06:59:46,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241823941] [2020-12-09 06:59:46,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-09 06:59:46,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:46,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-09 06:59:46,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2020-12-09 06:59:46,762 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 14 states. [2020-12-09 06:59:47,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:47,346 INFO L93 Difference]: Finished difference Result 215 states and 243 transitions. [2020-12-09 06:59:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-09 06:59:47,346 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 25 [2020-12-09 06:59:47,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:47,347 INFO L225 Difference]: With dead ends: 215 [2020-12-09 06:59:47,347 INFO L226 Difference]: Without dead ends: 178 [2020-12-09 06:59:47,348 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 56 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=103, Invalid=403, Unknown=0, NotChecked=0, Total=506 [2020-12-09 06:59:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-12-09 06:59:47,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 136. [2020-12-09 06:59:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-12-09 06:59:47,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 162 transitions. [2020-12-09 06:59:47,355 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 162 transitions. Word has length 25 [2020-12-09 06:59:47,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:47,355 INFO L481 AbstractCegarLoop]: Abstraction has 136 states and 162 transitions. [2020-12-09 06:59:47,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-09 06:59:47,355 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 162 transitions. [2020-12-09 06:59:47,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-09 06:59:47,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:47,356 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:47,556 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-12-09 06:59:47,558 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:47,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:47,559 INFO L82 PathProgramCache]: Analyzing trace with hash -400126349, now seen corresponding path program 1 times [2020-12-09 06:59:47,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:47,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62326931] [2020-12-09 06:59:47,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:47,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-09 06:59:47,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62326931] [2020-12-09 06:59:47,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:47,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:59:47,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384388315] [2020-12-09 06:59:47,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:59:47,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:47,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:59:47,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:47,660 INFO L87 Difference]: Start difference. First operand 136 states and 162 transitions. Second operand 4 states. [2020-12-09 06:59:47,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:47,752 INFO L93 Difference]: Finished difference Result 173 states and 200 transitions. [2020-12-09 06:59:47,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:59:47,753 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2020-12-09 06:59:47,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:47,754 INFO L225 Difference]: With dead ends: 173 [2020-12-09 06:59:47,754 INFO L226 Difference]: Without dead ends: 170 [2020-12-09 06:59:47,754 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 [2020-12-09 06:59:47,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-12-09 06:59:47,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 122. [2020-12-09 06:59:47,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-12-09 06:59:47,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 144 transitions. [2020-12-09 06:59:47,760 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 144 transitions. Word has length 25 [2020-12-09 06:59:47,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:47,760 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 144 transitions. [2020-12-09 06:59:47,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:59:47,760 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 144 transitions. [2020-12-09 06:59:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 06:59:47,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:47,761 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:47,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-09 06:59:47,761 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:47,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:47,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1550558822, now seen corresponding path program 1 times [2020-12-09 06:59:47,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:47,762 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147012246] [2020-12-09 06:59:47,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:47,782 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-09 06:59:47,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147012246] [2020-12-09 06:59:47,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 06:59:47,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 06:59:47,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081781197] [2020-12-09 06:59:47,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 06:59:47,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:47,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 06:59:47,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 06:59:47,784 INFO L87 Difference]: Start difference. First operand 122 states and 144 transitions. Second operand 4 states. [2020-12-09 06:59:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:47,840 INFO L93 Difference]: Finished difference Result 166 states and 191 transitions. [2020-12-09 06:59:47,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 06:59:47,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-12-09 06:59:47,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:47,841 INFO L225 Difference]: With dead ends: 166 [2020-12-09 06:59:47,841 INFO L226 Difference]: Without dead ends: 164 [2020-12-09 06:59:47,842 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 [2020-12-09 06:59:47,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-12-09 06:59:47,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 122. [2020-12-09 06:59:47,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-12-09 06:59:47,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-12-09 06:59:47,848 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 26 [2020-12-09 06:59:47,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:47,848 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-12-09 06:59:47,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 06:59:47,848 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-12-09 06:59:47,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 06:59:47,848 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:47,848 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:47,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-09 06:59:47,849 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:47,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:47,849 INFO L82 PathProgramCache]: Analyzing trace with hash 480985332, now seen corresponding path program 1 times [2020-12-09 06:59:47,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:47,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338237727] [2020-12-09 06:59:47,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:47,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:47,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338237727] [2020-12-09 06:59:47,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585535193] [2020-12-09 06:59:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:59:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:47,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 06:59:47,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:59:47,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:47,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:59:47,986 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:47,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [543642198] [2020-12-09 06:59:47,988 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-12-09 06:59:47,988 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 06:59:47,989 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 06:59:47,989 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 06:59:47,989 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 06:59:48,196 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 06:59:48,381 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 06:59:48,617 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 06:59:49,309 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 06:59:49,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 06:59:49,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-12-09 06:59:49,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295887711] [2020-12-09 06:59:49,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 06:59:49,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:49,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 06:59:49,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-12-09 06:59:49,311 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 9 states. [2020-12-09 06:59:49,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:49,392 INFO L93 Difference]: Finished difference Result 299 states and 346 transitions. [2020-12-09 06:59:49,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 06:59:49,392 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2020-12-09 06:59:49,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:49,393 INFO L225 Difference]: With dead ends: 299 [2020-12-09 06:59:49,393 INFO L226 Difference]: Without dead ends: 201 [2020-12-09 06:59:49,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 56 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-12-09 06:59:49,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2020-12-09 06:59:49,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 142. [2020-12-09 06:59:49,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-12-09 06:59:49,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 167 transitions. [2020-12-09 06:59:49,400 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 167 transitions. Word has length 26 [2020-12-09 06:59:49,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:49,400 INFO L481 AbstractCegarLoop]: Abstraction has 142 states and 167 transitions. [2020-12-09 06:59:49,400 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 06:59:49,400 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 167 transitions. [2020-12-09 06:59:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-09 06:59:49,401 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:49,401 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:49,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2020-12-09 06:59:49,602 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:49,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:49,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1968039911, now seen corresponding path program 1 times [2020-12-09 06:59:49,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:49,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050902546] [2020-12-09 06:59:49,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:49,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:49,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050902546] [2020-12-09 06:59:49,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019020623] [2020-12-09 06:59:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:59:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:49,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 25 conjunts are in the unsatisfiable core [2020-12-09 06:59:49,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:59:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 06:59:49,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:59:49,886 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 06:59:49,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2020-12-09 06:59:49,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 4] imperfect sequences [5] total 12 [2020-12-09 06:59:49,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389741349] [2020-12-09 06:59:49,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 06:59:49,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:49,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 06:59:49,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-12-09 06:59:49,888 INFO L87 Difference]: Start difference. First operand 142 states and 167 transitions. Second operand 9 states. [2020-12-09 06:59:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:50,057 INFO L93 Difference]: Finished difference Result 212 states and 245 transitions. [2020-12-09 06:59:50,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-09 06:59:50,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-12-09 06:59:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:50,059 INFO L225 Difference]: With dead ends: 212 [2020-12-09 06:59:50,059 INFO L226 Difference]: Without dead ends: 173 [2020-12-09 06:59:50,059 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2020-12-09 06:59:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-12-09 06:59:50,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 168. [2020-12-09 06:59:50,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-09 06:59:50,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 198 transitions. [2020-12-09 06:59:50,068 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 198 transitions. Word has length 28 [2020-12-09 06:59:50,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:50,069 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 198 transitions. [2020-12-09 06:59:50,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 06:59:50,069 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 198 transitions. [2020-12-09 06:59:50,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-09 06:59:50,069 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:50,069 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:50,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2020-12-09 06:59:50,270 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:50,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:50,270 INFO L82 PathProgramCache]: Analyzing trace with hash -2065535144, now seen corresponding path program 1 times [2020-12-09 06:59:50,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:50,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786054926] [2020-12-09 06:59:50,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:50,313 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:50,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786054926] [2020-12-09 06:59:50,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478468072] [2020-12-09 06:59:50,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:59:50,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:50,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 06:59:50,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:59:50,386 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:50,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:59:50,438 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:50,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1918834102] [2020-12-09 06:59:50,439 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2020-12-09 06:59:50,440 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 06:59:50,440 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 06:59:50,440 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 06:59:50,440 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 06:59:50,615 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 06:59:50,828 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 06:59:50,972 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 06:59:51,104 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 06:59:52,064 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 06:59:52,065 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 06:59:52,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2020-12-09 06:59:52,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747255299] [2020-12-09 06:59:52,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 06:59:52,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:52,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 06:59:52,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=459, Unknown=0, NotChecked=0, Total=552 [2020-12-09 06:59:52,066 INFO L87 Difference]: Start difference. First operand 168 states and 198 transitions. Second operand 9 states. [2020-12-09 06:59:54,079 WARN L197 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2020-12-09 06:59:54,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:54,366 INFO L93 Difference]: Finished difference Result 290 states and 341 transitions. [2020-12-09 06:59:54,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 06:59:54,366 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2020-12-09 06:59:54,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:54,367 INFO L225 Difference]: With dead ends: 290 [2020-12-09 06:59:54,367 INFO L226 Difference]: Without dead ends: 169 [2020-12-09 06:59:54,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 59 SyntacticMatches, 9 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=117, Invalid=533, Unknown=0, NotChecked=0, Total=650 [2020-12-09 06:59:54,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-12-09 06:59:54,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 168. [2020-12-09 06:59:54,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-09 06:59:54,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 194 transitions. [2020-12-09 06:59:54,375 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 194 transitions. Word has length 29 [2020-12-09 06:59:54,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:54,375 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 194 transitions. [2020-12-09 06:59:54,375 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 06:59:54,375 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 194 transitions. [2020-12-09 06:59:54,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-09 06:59:54,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:54,376 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:54,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2020-12-09 06:59:54,578 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:54,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:54,579 INFO L82 PathProgramCache]: Analyzing trace with hash -739953740, now seen corresponding path program 2 times [2020-12-09 06:59:54,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:54,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012143951] [2020-12-09 06:59:54,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:54,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012143951] [2020-12-09 06:59:54,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711694057] [2020-12-09 06:59:54,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:59:54,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2020-12-09 06:59:54,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 06:59:54,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 06:59:54,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:59:54,756 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:54,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:59:54,863 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:54,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1309615001] [2020-12-09 06:59:54,865 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-12-09 06:59:54,865 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 06:59:54,865 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 06:59:54,865 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 06:59:54,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 06:59:55,026 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 06:59:55,222 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 06:59:55,351 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 06:59:55,480 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 06:59:56,324 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 06:59:56,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 06:59:56,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2020-12-09 06:59:56,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881673063] [2020-12-09 06:59:56,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-09 06:59:56,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 06:59:56,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-09 06:59:56,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=634, Unknown=0, NotChecked=0, Total=870 [2020-12-09 06:59:56,325 INFO L87 Difference]: Start difference. First operand 168 states and 194 transitions. Second operand 17 states. [2020-12-09 06:59:56,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 06:59:56,497 INFO L93 Difference]: Finished difference Result 415 states and 480 transitions. [2020-12-09 06:59:56,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-09 06:59:56,497 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 46 [2020-12-09 06:59:56,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 06:59:56,499 INFO L225 Difference]: With dead ends: 415 [2020-12-09 06:59:56,499 INFO L226 Difference]: Without dead ends: 291 [2020-12-09 06:59:56,499 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 108 SyntacticMatches, 9 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=236, Invalid=634, Unknown=0, NotChecked=0, Total=870 [2020-12-09 06:59:56,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-12-09 06:59:56,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 208. [2020-12-09 06:59:56,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-12-09 06:59:56,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 242 transitions. [2020-12-09 06:59:56,508 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 242 transitions. Word has length 46 [2020-12-09 06:59:56,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 06:59:56,508 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 242 transitions. [2020-12-09 06:59:56,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-09 06:59:56,508 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 242 transitions. [2020-12-09 06:59:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-09 06:59:56,509 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 06:59:56,509 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 06:59:56,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2020-12-09 06:59:56,710 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 06:59:56,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 06:59:56,710 INFO L82 PathProgramCache]: Analyzing trace with hash -983399272, now seen corresponding path program 2 times [2020-12-09 06:59:56,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 06:59:56,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197858767] [2020-12-09 06:59:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 06:59:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 06:59:56,804 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:56,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197858767] [2020-12-09 06:59:56,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1709280388] [2020-12-09 06:59:56,804 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 06:59:57,137 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-12-09 06:59:57,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 06:59:57,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 18 conjunts are in the unsatisfiable core [2020-12-09 06:59:57,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 06:59:57,230 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:57,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 06:59:59,462 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 06:59:59,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1892342988] [2020-12-09 06:59:59,464 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2020-12-09 06:59:59,464 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 06:59:59,464 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 06:59:59,464 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 06:59:59,464 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 06:59:59,627 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 06:59:59,857 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 07:00:00,008 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 07:00:00,157 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 07:00:02,249 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 07:00:02,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 07:00:02,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 10] total 18 [2020-12-09 07:00:02,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740845803] [2020-12-09 07:00:02,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 07:00:02,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:00:02,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 07:00:02,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=865, Unknown=0, NotChecked=0, Total=1056 [2020-12-09 07:00:02,251 INFO L87 Difference]: Start difference. First operand 208 states and 242 transitions. Second operand 18 states. [2020-12-09 07:00:07,350 WARN L197 SmtUtils]: Spent 4.96 s on a formula simplification. DAG size of input: 40 DAG size of output: 10 [2020-12-09 07:00:16,976 WARN L197 SmtUtils]: Spent 7.56 s on a formula simplification. DAG size of input: 34 DAG size of output: 10 [2020-12-09 07:00:23,691 WARN L197 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 28 DAG size of output: 10 [2020-12-09 07:00:28,372 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 10 [2020-12-09 07:00:31,254 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2020-12-09 07:00:50,195 WARN L197 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 07:01:01,085 WARN L197 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-12-09 07:01:13,427 WARN L197 SmtUtils]: Spent 3.72 s on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 07:01:24,764 WARN L197 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 07:01:42,869 WARN L197 SmtUtils]: Spent 12.86 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 07:02:12,009 WARN L197 SmtUtils]: Spent 6.40 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 07:02:26,660 WARN L197 SmtUtils]: Spent 5.89 s on a formula simplification that was a NOOP. DAG size: 41 [2020-12-09 07:02:33,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:02:33,438 INFO L93 Difference]: Finished difference Result 626 states and 708 transitions. [2020-12-09 07:02:33,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-09 07:02:33,448 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 49 [2020-12-09 07:02:33,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:02:33,450 INFO L225 Difference]: With dead ends: 626 [2020-12-09 07:02:33,450 INFO L226 Difference]: Without dead ends: 505 [2020-12-09 07:02:33,451 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 105 SyntacticMatches, 18 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 115.0s TimeCoverageRelationStatistics Valid=508, Invalid=1725, Unknown=23, NotChecked=0, Total=2256 [2020-12-09 07:02:33,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2020-12-09 07:02:33,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 208. [2020-12-09 07:02:33,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-12-09 07:02:33,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 234 transitions. [2020-12-09 07:02:33,461 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 234 transitions. Word has length 49 [2020-12-09 07:02:33,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:02:33,461 INFO L481 AbstractCegarLoop]: Abstraction has 208 states and 234 transitions. [2020-12-09 07:02:33,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 07:02:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 234 transitions. [2020-12-09 07:02:33,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-09 07:02:33,462 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:02:33,462 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:02:33,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 07:02:33,664 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 07:02:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:02:33,665 INFO L82 PathProgramCache]: Analyzing trace with hash -362120908, now seen corresponding path program 3 times [2020-12-09 07:02:33,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:02:33,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773850867] [2020-12-09 07:02:33,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:02:33,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:02:33,868 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:02:33,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773850867] [2020-12-09 07:02:33,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219360] [2020-12-09 07:02:33,868 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 07:02:33,907 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-09 07:02:33,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 07:02:33,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 07:02:33,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:02:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:02:34,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 07:02:34,386 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:02:34,386 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1345599156] [2020-12-09 07:02:34,388 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2020-12-09 07:02:34,388 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 07:02:34,388 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 07:02:34,388 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 07:02:34,388 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 07:02:34,548 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 07:02:34,799 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 07:02:34,951 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 07:02:35,103 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 07:02:36,066 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2020-12-09 07:02:36,612 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 07:02:36,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 07:02:36,612 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2020-12-09 07:02:36,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113527702] [2020-12-09 07:02:36,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-09 07:02:36,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:02:36,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-09 07:02:36,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=692, Invalid=1378, Unknown=0, NotChecked=0, Total=2070 [2020-12-09 07:02:36,614 INFO L87 Difference]: Start difference. First operand 208 states and 234 transitions. Second operand 33 states. [2020-12-09 07:02:36,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:02:36,934 INFO L93 Difference]: Finished difference Result 543 states and 624 transitions. [2020-12-09 07:02:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-12-09 07:02:36,934 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 86 [2020-12-09 07:02:36,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:02:36,936 INFO L225 Difference]: With dead ends: 543 [2020-12-09 07:02:36,936 INFO L226 Difference]: Without dead ends: 419 [2020-12-09 07:02:36,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 212 SyntacticMatches, 17 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1616 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=692, Invalid=1378, Unknown=0, NotChecked=0, Total=2070 [2020-12-09 07:02:36,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-12-09 07:02:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 288. [2020-12-09 07:02:36,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-12-09 07:02:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 330 transitions. [2020-12-09 07:02:36,949 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 330 transitions. Word has length 86 [2020-12-09 07:02:36,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:02:36,949 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 330 transitions. [2020-12-09 07:02:36,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-09 07:02:36,949 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 330 transitions. [2020-12-09 07:02:36,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-09 07:02:36,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:02:36,950 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:02:37,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2020-12-09 07:02:37,152 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 07:02:37,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:02:37,153 INFO L82 PathProgramCache]: Analyzing trace with hash -2074783976, now seen corresponding path program 3 times [2020-12-09 07:02:37,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:02:37,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007269803] [2020-12-09 07:02:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:02:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:02:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:02:37,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007269803] [2020-12-09 07:02:37,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1433951394] [2020-12-09 07:02:37,436 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6749a3e6-f227-4d1b-99ce-0d1cd86f2e58/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 07:02:37,474 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-12-09 07:02:37,474 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 07:02:37,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 33 conjunts are in the unsatisfiable core [2020-12-09 07:02:37,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:02:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:02:37,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 07:02:38,745 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 455 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:02:38,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2079255714] [2020-12-09 07:02:38,746 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2020-12-09 07:02:38,746 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 07:02:38,747 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 07:02:38,747 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 07:02:38,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 07:02:38,918 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 07:02:39,281 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-12-09 07:02:39,519 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2020-12-09 07:02:39,737 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-12-09 07:02:40,132 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-09 07:02:42,713 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 07:02:42,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2020-12-09 07:02:42,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2020-12-09 07:02:42,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448866733] [2020-12-09 07:02:42,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-12-09 07:02:42,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:02:42,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-12-09 07:02:42,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=1950, Unknown=0, NotChecked=0, Total=2352 [2020-12-09 07:02:42,715 INFO L87 Difference]: Start difference. First operand 288 states and 330 transitions. Second operand 33 states. [2020-12-09 07:02:55,889 WARN L197 SmtUtils]: Spent 12.36 s on a formula simplification. DAG size of input: 38 DAG size of output: 10 [2020-12-09 07:03:03,808 WARN L197 SmtUtils]: Spent 5.22 s on a formula simplification. DAG size of input: 34 DAG size of output: 10 [2020-12-09 07:03:13,014 WARN L197 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 30 DAG size of output: 10 [2020-12-09 07:03:22,461 WARN L197 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 26 DAG size of output: 10 [2020-12-09 07:03:35,487 WARN L197 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 22 DAG size of output: 10 [2020-12-09 07:03:53,979 WARN L197 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2020-12-09 07:04:47,347 WARN L197 SmtUtils]: Spent 51.16 s on a formula simplification. DAG size of input: 62 DAG size of output: 18 [2020-12-09 07:04:48,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:04:48,080 INFO L93 Difference]: Finished difference Result 410 states and 473 transitions. [2020-12-09 07:04:48,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-09 07:04:48,081 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 89 [2020-12-09 07:04:48,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:04:48,083 INFO L225 Difference]: With dead ends: 410 [2020-12-09 07:04:48,083 INFO L226 Difference]: Without dead ends: 289 [2020-12-09 07:04:48,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 203 SyntacticMatches, 32 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1159 ImplicationChecksByTransitivity, 128.7s TimeCoverageRelationStatistics Valid=702, Invalid=2701, Unknown=19, NotChecked=0, Total=3422 [2020-12-09 07:04:48,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-12-09 07:04:48,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 288. [2020-12-09 07:04:48,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-12-09 07:04:48,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 320 transitions. [2020-12-09 07:04:48,101 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 320 transitions. Word has length 89 [2020-12-09 07:04:48,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:04:48,102 INFO L481 AbstractCegarLoop]: Abstraction has 288 states and 320 transitions. [2020-12-09 07:04:48,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-12-09 07:04:48,102 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 320 transitions. [2020-12-09 07:04:48,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-12-09 07:04:48,103 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:04:48,103 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:04:48,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 07:04:48,305 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr45ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr43ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 07:04:48,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:04:48,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1648146488, now seen corresponding path program 4 times [2020-12-09 07:04:48,306 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:04:48,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723128310] [2020-12-09 07:04:48,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:04:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:04:48,372 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:04:48,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:04:48,402 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:04:48,429 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 07:04:48,430 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 07:04:48,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2020-12-09 07:04:48,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:04:48 BoogieIcfgContainer [2020-12-09 07:04:48,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:04:48,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:04:48,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:04:48,489 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:04:48,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:59:43" (3/4) ... [2020-12-09 07:04:48,492 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 07:04:48,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:04:48,493 INFO L168 Benchmark]: Toolchain (without parser) took 305571.44 ms. Allocated memory was 132.1 MB in the beginning and 188.7 MB in the end (delta: 56.6 MB). Free memory was 102.7 MB in the beginning and 69.9 MB in the end (delta: 32.8 MB). Peak memory consumption was 90.5 MB. Max. memory is 16.1 GB. [2020-12-09 07:04:48,493 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 73.4 MB. Free memory was 39.1 MB in the beginning and 39.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:04:48,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.56 ms. Allocated memory is still 132.1 MB. Free memory was 102.6 MB in the beginning and 90.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:04:48,493 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.58 ms. Allocated memory is still 132.1 MB. Free memory was 90.0 MB in the beginning and 87.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:04:48,493 INFO L168 Benchmark]: Boogie Preprocessor took 32.02 ms. Allocated memory is still 132.1 MB. Free memory was 87.6 MB in the beginning and 85.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:04:48,494 INFO L168 Benchmark]: RCFGBuilder took 633.32 ms. Allocated memory is still 132.1 MB. Free memory was 85.8 MB in the beginning and 74.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-12-09 07:04:48,494 INFO L168 Benchmark]: TraceAbstraction took 304661.47 ms. Allocated memory was 132.1 MB in the beginning and 188.7 MB in the end (delta: 56.6 MB). Free memory was 74.1 MB in the beginning and 71.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:04:48,494 INFO L168 Benchmark]: Witness Printer took 2.97 ms. Allocated memory is still 188.7 MB. Free memory was 71.0 MB in the beginning and 69.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:04:48,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 73.4 MB. Free memory was 39.1 MB in the beginning and 39.0 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 201.56 ms. Allocated memory is still 132.1 MB. Free memory was 102.6 MB in the beginning and 90.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.58 ms. Allocated memory is still 132.1 MB. Free memory was 90.0 MB in the beginning and 87.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.02 ms. Allocated memory is still 132.1 MB. Free memory was 87.6 MB in the beginning and 85.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 633.32 ms. Allocated memory is still 132.1 MB. Free memory was 85.8 MB in the beginning and 74.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 304661.47 ms. Allocated memory was 132.1 MB in the beginning and 188.7 MB in the end (delta: 56.6 MB). Free memory was 74.1 MB in the beginning and 71.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 61.2 MB. Max. memory is 16.1 GB. * Witness Printer took 2.97 ms. Allocated memory is still 188.7 MB. Free memory was 71.0 MB in the beginning and 69.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 69]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 69, overapproximation of bitwiseAnd at line 68. Possible FailurePath: [L213] unsigned int a ; [L214] unsigned int ma = __VERIFIER_nondet_uint(); [L215] signed char ea = __VERIFIER_nondet_char(); [L216] unsigned int b ; [L217] unsigned int mb = __VERIFIER_nondet_uint(); [L218] signed char eb = __VERIFIER_nondet_char(); [L219] unsigned int r_mul ; [L220] unsigned int zero ; [L221] unsigned int one ; [L222] int sb ; [L223] int tmp ; [L224] int tmp___0 ; [L225] int tmp___1 ; [L226] int __retres16 ; [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND TRUE ! m [L22] __retres4 = 0U [L72] return (__retres4); [L230] zero = base2flt(0, 0) [L17] unsigned int res ; [L18] unsigned int __retres4 ; [L21] COND FALSE !(! m) [L27] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND TRUE m < 1U << 24U [L29] COND TRUE 1 [L31] COND FALSE !(e <= -128) [L37] EXPR e - 1 [L37] e = e - 1 [L38] m = m << 1U [L39] COND FALSE !(m < 1U << 24U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] EXPR (e + 128) << 24U [L69] res = m | (unsigned int )((e + 128) << 24U) [L70] __retres4 = res [L72] return (__retres4); [L231] one = base2flt(1, 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 FALSE !(m >= 1U << 25U) [L68] m = m & ~ (1U << 24U) [L69] EXPR e + 128 [L69] (e + 128) << 24U - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 142 locations, 46 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 304.5s, OverallIterations: 21, TraceHistogramMax: 24, AutomataDifference: 281.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2630 SDtfs, 2427 SDslu, 7824 SDs, 0 SdLazy, 3979 SolverSat, 374 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 43.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1229 GetRequests, 859 SyntacticMatches, 95 SemanticMatches, 275 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5083 ImplicationChecksByTransitivity, 254.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred 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: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 952 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 1067 NumberOfCodeBlocks, 1067 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1270 ConstructedInterpolants, 0 QuantifiedInterpolants, 327136 SizeOfPredicates, 22 NumberOfNonLiveVariables, 1138 ConjunctsInSsa, 121 ConjunctsInUnsatCore, 36 InterpolantComputations, 14 PerfectInterpolantSequences, 33/3407 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: OVERALL_TIME[ms]: 321, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 16, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 31, TOOLS_POST_TIME[ms]: 138, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 31, TOOLS_QUANTIFIERELIM_TIME[ms]: 131, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 92, FLUID_QUERY_TIME[ms]: 3, FLUID_QUERIES: 55, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 120, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 8, DOMAIN_ISBOTTOM_APPLICATIONS: 16, DOMAIN_ISBOTTOM_TIME[ms]: 18, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 153, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 152, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 1, PATH_EXPR_TIME[ms]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 9, DAG_COMPRESSION_PROCESSED_NODES: 189, DAG_COMPRESSION_RETAINED_NODES: 48, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...