./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/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 fa5701cbf2aecb18d72b6e5744b88307065d31ab .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/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 0.1.25-f470102 [2019-12-07 16:48:49,145 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 16:48:49,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 16:48:49,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 16:48:49,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 16:48:49,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 16:48:49,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 16:48:49,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 16:48:49,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 16:48:49,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 16:48:49,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 16:48:49,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 16:48:49,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 16:48:49,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 16:48:49,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 16:48:49,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 16:48:49,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 16:48:49,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 16:48:49,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 16:48:49,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 16:48:49,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 16:48:49,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 16:48:49,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 16:48:49,171 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 16:48:49,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 16:48:49,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 16:48:49,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 16:48:49,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 16:48:49,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 16:48:49,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 16:48:49,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 16:48:49,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 16:48:49,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 16:48:49,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 16:48:49,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 16:48:49,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 16:48:49,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 16:48:49,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 16:48:49,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 16:48:49,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 16:48:49,180 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 16:48:49,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2019-12-07 16:48:49,193 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 16:48:49,193 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 16:48:49,194 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 16:48:49,194 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 16:48:49,194 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 16:48:49,194 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 16:48:49,194 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 16:48:49,194 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 16:48:49,194 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 16:48:49,194 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 16:48:49,195 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 16:48:49,195 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 16:48:49,195 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 16:48:49,195 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 16:48:49,195 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 16:48:49,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 16:48:49,195 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 16:48:49,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 16:48:49,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 16:48:49,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 16:48:49,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 16:48:49,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 16:48:49,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 16:48:49,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 16:48:49,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 16:48:49,198 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/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 -> fa5701cbf2aecb18d72b6e5744b88307065d31ab [2019-12-07 16:48:49,297 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 16:48:49,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 16:48:49,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 16:48:49,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 16:48:49,309 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 16:48:49,310 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/../../sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-12-07 16:48:49,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/data/0bc6e30e9/376832c865d34663aa23149fe2b6ac94/FLAG490bfbc76 [2019-12-07 16:48:49,682 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 16:48:49,682 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/sv-benchmarks/c/bitvector/soft_float_4-3a.c.cil.c [2019-12-07 16:48:49,687 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/data/0bc6e30e9/376832c865d34663aa23149fe2b6ac94/FLAG490bfbc76 [2019-12-07 16:48:49,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/bin/utaipan/data/0bc6e30e9/376832c865d34663aa23149fe2b6ac94 [2019-12-07 16:48:49,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 16:48:49,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 16:48:49,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 16:48:49,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 16:48:49,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 16:48:49,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e98e849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49, skipping insertion in model container [2019-12-07 16:48:49,704 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,709 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 16:48:49,726 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 16:48:49,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:48:49,882 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 16:48:49,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 16:48:49,917 INFO L208 MainTranslator]: Completed translation [2019-12-07 16:48:49,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49 WrapperNode [2019-12-07 16:48:49,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 16:48:49,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 16:48:49,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 16:48:49,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 16:48:49,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 16:48:49,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 16:48:49,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 16:48:49,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 16:48:49,956 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... [2019-12-07 16:48:49,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 16:48:49,973 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 16:48:49,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 16:48:49,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 16:48:49,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf2e6707-6e07-4e1d-b0c8-3de45cb6faf3/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 [2019-12-07 16:48:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 16:48:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 16:48:50,458 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 16:48:50,458 INFO L287 CfgBuilder]: Removed 34 assume(true) statements. [2019-12-07 16:48:50,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:48:50 BoogieIcfgContainer [2019-12-07 16:48:50,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 16:48:50,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 16:48:50,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 16:48:50,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 16:48:50,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 04:48:49" (1/3) ... [2019-12-07 16:48:50,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8e4b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:48:50, skipping insertion in model container [2019-12-07 16:48:50,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 04:48:49" (2/3) ... [2019-12-07 16:48:50,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8e4b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 04:48:50, skipping insertion in model container [2019-12-07 16:48:50,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:48:50" (3/3) ... [2019-12-07 16:48:50,463 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_4-3a.c.cil.c [2019-12-07 16:48:50,470 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 16:48:50,474 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 38 error locations. [2019-12-07 16:48:50,481 INFO L249 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2019-12-07 16:48:50,498 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 16:48:50,498 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 16:48:50,498 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 16:48:50,498 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 16:48:50,498 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 16:48:50,498 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 16:48:50,498 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 16:48:50,498 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 16:48:50,513 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states. [2019-12-07 16:48:50,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:48:50,517 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:50,517 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:48:50,518 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:50,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:50,522 INFO L82 PathProgramCache]: Analyzing trace with hash 923277161, now seen corresponding path program 1 times [2019-12-07 16:48:50,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:50,528 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490217841] [2019-12-07 16:48:50,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:50,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:50,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:50,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490217841] [2019-12-07 16:48:50,604 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:50,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:50,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128097400] [2019-12-07 16:48:50,608 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 16:48:50,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:50,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 16:48:50,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 16:48:50,618 INFO L87 Difference]: Start difference. First operand 120 states. Second operand 2 states. [2019-12-07 16:48:50,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:50,637 INFO L93 Difference]: Finished difference Result 219 states and 277 transitions. [2019-12-07 16:48:50,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 16:48:50,638 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-12-07 16:48:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:50,645 INFO L225 Difference]: With dead ends: 219 [2019-12-07 16:48:50,646 INFO L226 Difference]: Without dead ends: 114 [2019-12-07 16:48:50,648 INFO L630 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 [2019-12-07 16:48:50,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2019-12-07 16:48:50,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2019-12-07 16:48:50,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-12-07 16:48:50,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 136 transitions. [2019-12-07 16:48:50,677 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 136 transitions. Word has length 6 [2019-12-07 16:48:50,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:50,677 INFO L462 AbstractCegarLoop]: Abstraction has 114 states and 136 transitions. [2019-12-07 16:48:50,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 16:48:50,677 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 136 transitions. [2019-12-07 16:48:50,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 16:48:50,678 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:50,678 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 16:48:50,678 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:50,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:50,678 INFO L82 PathProgramCache]: Analyzing trace with hash 921960144, now seen corresponding path program 1 times [2019-12-07 16:48:50,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:50,679 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485665600] [2019-12-07 16:48:50,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:50,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:50,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485665600] [2019-12-07 16:48:50,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:50,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:50,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204399157] [2019-12-07 16:48:50,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:48:50,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:50,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:48:50,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:50,716 INFO L87 Difference]: Start difference. First operand 114 states and 136 transitions. Second operand 4 states. [2019-12-07 16:48:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:50,810 INFO L93 Difference]: Finished difference Result 255 states and 297 transitions. [2019-12-07 16:48:50,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:50,810 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-12-07 16:48:50,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:50,812 INFO L225 Difference]: With dead ends: 255 [2019-12-07 16:48:50,812 INFO L226 Difference]: Without dead ends: 143 [2019-12-07 16:48:50,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2019-12-07 16:48:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 94. [2019-12-07 16:48:50,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-12-07 16:48:50,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 110 transitions. [2019-12-07 16:48:50,821 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 110 transitions. Word has length 6 [2019-12-07 16:48:50,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:50,822 INFO L462 AbstractCegarLoop]: Abstraction has 94 states and 110 transitions. [2019-12-07 16:48:50,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:48:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 110 transitions. [2019-12-07 16:48:50,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-07 16:48:50,822 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:50,823 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:50,823 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:50,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:50,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1592854981, now seen corresponding path program 1 times [2019-12-07 16:48:50,824 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:50,824 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740339228] [2019-12-07 16:48:50,824 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:50,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740339228] [2019-12-07 16:48:50,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:50,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:50,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420576861] [2019-12-07 16:48:50,855 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:48:50,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:50,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:48:50,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:50,856 INFO L87 Difference]: Start difference. First operand 94 states and 110 transitions. Second operand 4 states. [2019-12-07 16:48:50,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:50,912 INFO L93 Difference]: Finished difference Result 150 states and 173 transitions. [2019-12-07 16:48:50,912 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:50,912 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-07 16:48:50,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:50,914 INFO L225 Difference]: With dead ends: 150 [2019-12-07 16:48:50,914 INFO L226 Difference]: Without dead ends: 146 [2019-12-07 16:48:50,914 INFO L630 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 [2019-12-07 16:48:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-12-07 16:48:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2019-12-07 16:48:50,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-12-07 16:48:50,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 112 transitions. [2019-12-07 16:48:50,921 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 112 transitions. Word has length 8 [2019-12-07 16:48:50,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:50,921 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 112 transitions. [2019-12-07 16:48:50,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:48:50,921 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 112 transitions. [2019-12-07 16:48:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 16:48:50,922 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:50,922 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:50,922 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:50,923 INFO L82 PathProgramCache]: Analyzing trace with hash -2133864022, now seen corresponding path program 1 times [2019-12-07 16:48:50,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:50,923 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797464227] [2019-12-07 16:48:50,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:50,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:50,938 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797464227] [2019-12-07 16:48:50,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:50,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:50,938 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590633887] [2019-12-07 16:48:50,939 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 16:48:50,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:50,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 16:48:50,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 16:48:50,939 INFO L87 Difference]: Start difference. First operand 95 states and 112 transitions. Second operand 3 states. [2019-12-07 16:48:50,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:50,971 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2019-12-07 16:48:50,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 16:48:50,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-07 16:48:50,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:50,972 INFO L225 Difference]: With dead ends: 144 [2019-12-07 16:48:50,972 INFO L226 Difference]: Without dead ends: 142 [2019-12-07 16:48:50,973 INFO L630 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 [2019-12-07 16:48:50,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2019-12-07 16:48:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 93. [2019-12-07 16:48:50,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-12-07 16:48:50,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 110 transitions. [2019-12-07 16:48:50,979 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 110 transitions. Word has length 9 [2019-12-07 16:48:50,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:50,980 INFO L462 AbstractCegarLoop]: Abstraction has 93 states and 110 transitions. [2019-12-07 16:48:50,980 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 16:48:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 110 transitions. [2019-12-07 16:48:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 16:48:50,980 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:50,980 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:50,981 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:50,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:50,981 INFO L82 PathProgramCache]: Analyzing trace with hash -837759511, now seen corresponding path program 1 times [2019-12-07 16:48:50,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:50,981 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692499404] [2019-12-07 16:48:50,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:50,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:51,002 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692499404] [2019-12-07 16:48:51,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:51,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:51,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202193994] [2019-12-07 16:48:51,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:48:51,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:51,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:48:51,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:51,003 INFO L87 Difference]: Start difference. First operand 93 states and 110 transitions. Second operand 4 states. [2019-12-07 16:48:51,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:51,045 INFO L93 Difference]: Finished difference Result 148 states and 170 transitions. [2019-12-07 16:48:51,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:51,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 16:48:51,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:51,046 INFO L225 Difference]: With dead ends: 148 [2019-12-07 16:48:51,046 INFO L226 Difference]: Without dead ends: 146 [2019-12-07 16:48:51,046 INFO L630 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 [2019-12-07 16:48:51,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2019-12-07 16:48:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 95. [2019-12-07 16:48:51,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2019-12-07 16:48:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 112 transitions. [2019-12-07 16:48:51,052 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 112 transitions. Word has length 10 [2019-12-07 16:48:51,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:51,052 INFO L462 AbstractCegarLoop]: Abstraction has 95 states and 112 transitions. [2019-12-07 16:48:51,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:48:51,052 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 112 transitions. [2019-12-07 16:48:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 16:48:51,053 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:51,053 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:51,053 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1776376091, now seen corresponding path program 1 times [2019-12-07 16:48:51,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:51,054 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980610048] [2019-12-07 16:48:51,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:51,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:51,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980610048] [2019-12-07 16:48:51,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:51,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 16:48:51,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856338006] [2019-12-07 16:48:51,131 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 16:48:51,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:51,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:48:51,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:48:51,132 INFO L87 Difference]: Start difference. First operand 95 states and 112 transitions. Second operand 7 states. [2019-12-07 16:48:51,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:51,272 INFO L93 Difference]: Finished difference Result 217 states and 249 transitions. [2019-12-07 16:48:51,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 16:48:51,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-12-07 16:48:51,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:51,274 INFO L225 Difference]: With dead ends: 217 [2019-12-07 16:48:51,274 INFO L226 Difference]: Without dead ends: 165 [2019-12-07 16:48:51,275 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-07 16:48:51,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2019-12-07 16:48:51,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 129. [2019-12-07 16:48:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-12-07 16:48:51,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 162 transitions. [2019-12-07 16:48:51,284 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 162 transitions. Word has length 10 [2019-12-07 16:48:51,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:51,284 INFO L462 AbstractCegarLoop]: Abstraction has 129 states and 162 transitions. [2019-12-07 16:48:51,284 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 16:48:51,284 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 162 transitions. [2019-12-07 16:48:51,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 16:48:51,285 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:51,285 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:51,285 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:51,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:51,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1769664309, now seen corresponding path program 1 times [2019-12-07 16:48:51,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:51,286 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619194668] [2019-12-07 16:48:51,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:51,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:51,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619194668] [2019-12-07 16:48:51,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:51,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:51,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695442232] [2019-12-07 16:48:51,307 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:48:51,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:51,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:48:51,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:51,307 INFO L87 Difference]: Start difference. First operand 129 states and 162 transitions. Second operand 4 states. [2019-12-07 16:48:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:51,363 INFO L93 Difference]: Finished difference Result 207 states and 259 transitions. [2019-12-07 16:48:51,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:51,364 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-07 16:48:51,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:51,365 INFO L225 Difference]: With dead ends: 207 [2019-12-07 16:48:51,365 INFO L226 Difference]: Without dead ends: 205 [2019-12-07 16:48:51,366 INFO L630 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 [2019-12-07 16:48:51,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2019-12-07 16:48:51,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 136. [2019-12-07 16:48:51,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-12-07 16:48:51,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 170 transitions. [2019-12-07 16:48:51,375 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 170 transitions. Word has length 10 [2019-12-07 16:48:51,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:51,376 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 170 transitions. [2019-12-07 16:48:51,376 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:48:51,376 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 170 transitions. [2019-12-07 16:48:51,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-07 16:48:51,377 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:51,377 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:51,377 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:51,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:51,378 INFO L82 PathProgramCache]: Analyzing trace with hash 727806461, now seen corresponding path program 1 times [2019-12-07 16:48:51,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:51,378 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503599576] [2019-12-07 16:48:51,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:51,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:51,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:51,406 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503599576] [2019-12-07 16:48:51,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:51,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 16:48:51,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873892933] [2019-12-07 16:48:51,406 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:48:51,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:51,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:48:51,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:51,407 INFO L87 Difference]: Start difference. First operand 136 states and 170 transitions. Second operand 4 states. [2019-12-07 16:48:51,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:51,453 INFO L93 Difference]: Finished difference Result 214 states and 262 transitions. [2019-12-07 16:48:51,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:51,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-07 16:48:51,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:51,455 INFO L225 Difference]: With dead ends: 214 [2019-12-07 16:48:51,455 INFO L226 Difference]: Without dead ends: 212 [2019-12-07 16:48:51,456 INFO L630 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 [2019-12-07 16:48:51,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-12-07 16:48:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 141. [2019-12-07 16:48:51,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-12-07 16:48:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 174 transitions. [2019-12-07 16:48:51,465 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 174 transitions. Word has length 12 [2019-12-07 16:48:51,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:51,466 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 174 transitions. [2019-12-07 16:48:51,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:48:51,466 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 174 transitions. [2019-12-07 16:48:51,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-07 16:48:51,467 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:51,467 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:51,468 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:51,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:51,468 INFO L82 PathProgramCache]: Analyzing trace with hash 203179823, now seen corresponding path program 1 times [2019-12-07 16:48:51,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:51,468 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116480335] [2019-12-07 16:48:51,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:51,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:51,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:51,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116480335] [2019-12-07 16:48:51,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:51,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:48:51,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246251084] [2019-12-07 16:48:51,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:48:51,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:51,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:48:51,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:51,492 INFO L87 Difference]: Start difference. First operand 141 states and 174 transitions. Second operand 4 states. [2019-12-07 16:48:51,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:51,541 INFO L93 Difference]: Finished difference Result 280 states and 339 transitions. [2019-12-07 16:48:51,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:51,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-07 16:48:51,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:51,543 INFO L225 Difference]: With dead ends: 280 [2019-12-07 16:48:51,543 INFO L226 Difference]: Without dead ends: 278 [2019-12-07 16:48:51,543 INFO L630 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 [2019-12-07 16:48:51,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2019-12-07 16:48:51,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 130. [2019-12-07 16:48:51,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-12-07 16:48:51,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 162 transitions. [2019-12-07 16:48:51,554 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 162 transitions. Word has length 13 [2019-12-07 16:48:51,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:51,554 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 162 transitions. [2019-12-07 16:48:51,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:48:51,555 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 162 transitions. [2019-12-07 16:48:51,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 16:48:51,555 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:51,556 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:51,556 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:51,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:51,556 INFO L82 PathProgramCache]: Analyzing trace with hash 384955371, now seen corresponding path program 1 times [2019-12-07 16:48:51,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:51,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745831279] [2019-12-07 16:48:51,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:51,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:51,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:51,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745831279] [2019-12-07 16:48:51,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:51,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 16:48:51,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469911329] [2019-12-07 16:48:51,579 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 16:48:51,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:51,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 16:48:51,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 16:48:51,580 INFO L87 Difference]: Start difference. First operand 130 states and 162 transitions. Second operand 4 states. [2019-12-07 16:48:51,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:51,638 INFO L93 Difference]: Finished difference Result 228 states and 275 transitions. [2019-12-07 16:48:51,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:51,639 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-07 16:48:51,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:51,641 INFO L225 Difference]: With dead ends: 228 [2019-12-07 16:48:51,641 INFO L226 Difference]: Without dead ends: 226 [2019-12-07 16:48:51,641 INFO L630 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 [2019-12-07 16:48:51,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-12-07 16:48:51,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 116. [2019-12-07 16:48:51,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-12-07 16:48:51,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 144 transitions. [2019-12-07 16:48:51,650 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 144 transitions. Word has length 14 [2019-12-07 16:48:51,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:51,650 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 144 transitions. [2019-12-07 16:48:51,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 16:48:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 144 transitions. [2019-12-07 16:48:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-07 16:48:51,651 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:51,651 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:51,652 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:51,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:51,652 INFO L82 PathProgramCache]: Analyzing trace with hash -652565044, now seen corresponding path program 1 times [2019-12-07 16:48:51,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:51,652 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198008038] [2019-12-07 16:48:51,652 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:51,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:51,793 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198008038] [2019-12-07 16:48:51,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:51,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 16:48:51,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459458072] [2019-12-07 16:48:51,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:48:51,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:51,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:48:51,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:48:51,794 INFO L87 Difference]: Start difference. First operand 116 states and 144 transitions. Second operand 8 states. [2019-12-07 16:48:51,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:51,979 INFO L93 Difference]: Finished difference Result 149 states and 169 transitions. [2019-12-07 16:48:51,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-07 16:48:51,979 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2019-12-07 16:48:51,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:51,980 INFO L225 Difference]: With dead ends: 149 [2019-12-07 16:48:51,980 INFO L226 Difference]: Without dead ends: 148 [2019-12-07 16:48:51,981 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 16:48:51,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2019-12-07 16:48:51,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 116. [2019-12-07 16:48:51,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-12-07 16:48:51,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 143 transitions. [2019-12-07 16:48:51,987 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 143 transitions. Word has length 14 [2019-12-07 16:48:51,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:51,987 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 143 transitions. [2019-12-07 16:48:51,987 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:48:51,987 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 143 transitions. [2019-12-07 16:48:51,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 16:48:51,988 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:51,988 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:51,988 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:51,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:51,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1942209745, now seen corresponding path program 1 times [2019-12-07 16:48:51,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:51,989 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002355349] [2019-12-07 16:48:51,989 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:52,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:52,122 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002355349] [2019-12-07 16:48:52,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:52,122 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 16:48:52,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641080080] [2019-12-07 16:48:52,122 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-07 16:48:52,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:52,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-07 16:48:52,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:48:52,123 INFO L87 Difference]: Start difference. First operand 116 states and 143 transitions. Second operand 8 states. [2019-12-07 16:48:52,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:52,246 INFO L93 Difference]: Finished difference Result 140 states and 167 transitions. [2019-12-07 16:48:52,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:48:52,247 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 16 [2019-12-07 16:48:52,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:52,247 INFO L225 Difference]: With dead ends: 140 [2019-12-07 16:48:52,248 INFO L226 Difference]: Without dead ends: 139 [2019-12-07 16:48:52,248 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2019-12-07 16:48:52,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2019-12-07 16:48:52,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 120. [2019-12-07 16:48:52,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-12-07 16:48:52,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 147 transitions. [2019-12-07 16:48:52,253 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 147 transitions. Word has length 16 [2019-12-07 16:48:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:52,253 INFO L462 AbstractCegarLoop]: Abstraction has 120 states and 147 transitions. [2019-12-07 16:48:52,253 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-07 16:48:52,253 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 147 transitions. [2019-12-07 16:48:52,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 16:48:52,254 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:52,254 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:52,254 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:52,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:52,254 INFO L82 PathProgramCache]: Analyzing trace with hash -49773330, now seen corresponding path program 1 times [2019-12-07 16:48:52,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:52,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551551705] [2019-12-07 16:48:52,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:52,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:52,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:52,409 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551551705] [2019-12-07 16:48:52,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:52,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-07 16:48:52,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720690418] [2019-12-07 16:48:52,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-07 16:48:52,410 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:52,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-07 16:48:52,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:48:52,411 INFO L87 Difference]: Start difference. First operand 120 states and 147 transitions. Second operand 9 states. [2019-12-07 16:48:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:52,686 INFO L93 Difference]: Finished difference Result 169 states and 189 transitions. [2019-12-07 16:48:52,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 16:48:52,686 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-12-07 16:48:52,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:52,688 INFO L225 Difference]: With dead ends: 169 [2019-12-07 16:48:52,688 INFO L226 Difference]: Without dead ends: 168 [2019-12-07 16:48:52,688 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-12-07 16:48:52,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-12-07 16:48:52,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 126. [2019-12-07 16:48:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-12-07 16:48:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 153 transitions. [2019-12-07 16:48:52,696 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 153 transitions. Word has length 16 [2019-12-07 16:48:52,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:52,696 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 153 transitions. [2019-12-07 16:48:52,696 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-07 16:48:52,696 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 153 transitions. [2019-12-07 16:48:52,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 16:48:52,697 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:52,697 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:52,697 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:52,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:52,697 INFO L82 PathProgramCache]: Analyzing trace with hash -1542966992, now seen corresponding path program 1 times [2019-12-07 16:48:52,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:52,698 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454219659] [2019-12-07 16:48:52,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:52,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:52,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:52,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454219659] [2019-12-07 16:48:52,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:52,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-12-07 16:48:52,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578292362] [2019-12-07 16:48:52,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 16:48:52,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:52,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 16:48:52,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-12-07 16:48:52,985 INFO L87 Difference]: Start difference. First operand 126 states and 153 transitions. Second operand 12 states. [2019-12-07 16:48:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:53,297 INFO L93 Difference]: Finished difference Result 173 states and 192 transitions. [2019-12-07 16:48:53,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-12-07 16:48:53,297 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 17 [2019-12-07 16:48:53,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:53,299 INFO L225 Difference]: With dead ends: 173 [2019-12-07 16:48:53,299 INFO L226 Difference]: Without dead ends: 172 [2019-12-07 16:48:53,299 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2019-12-07 16:48:53,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2019-12-07 16:48:53,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 127. [2019-12-07 16:48:53,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-12-07 16:48:53,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 154 transitions. [2019-12-07 16:48:53,307 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 154 transitions. Word has length 17 [2019-12-07 16:48:53,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:53,307 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 154 transitions. [2019-12-07 16:48:53,307 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 16:48:53,307 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 154 transitions. [2019-12-07 16:48:53,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 16:48:53,308 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:53,308 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:53,308 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:53,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:53,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1847197485, now seen corresponding path program 1 times [2019-12-07 16:48:53,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:53,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107934883] [2019-12-07 16:48:53,309 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:53,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:53,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:53,489 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107934883] [2019-12-07 16:48:53,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:53,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 16:48:53,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959523131] [2019-12-07 16:48:53,489 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 16:48:53,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:53,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 16:48:53,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:48:53,490 INFO L87 Difference]: Start difference. First operand 127 states and 154 transitions. Second operand 10 states. [2019-12-07 16:48:53,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:53,657 INFO L93 Difference]: Finished difference Result 321 states and 371 transitions. [2019-12-07 16:48:53,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 16:48:53,657 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 18 [2019-12-07 16:48:53,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:53,659 INFO L225 Difference]: With dead ends: 321 [2019-12-07 16:48:53,659 INFO L226 Difference]: Without dead ends: 319 [2019-12-07 16:48:53,659 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2019-12-07 16:48:53,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-12-07 16:48:53,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 154. [2019-12-07 16:48:53,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 16:48:53,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 189 transitions. [2019-12-07 16:48:53,666 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 189 transitions. Word has length 18 [2019-12-07 16:48:53,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:53,666 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 189 transitions. [2019-12-07 16:48:53,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 16:48:53,666 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 189 transitions. [2019-12-07 16:48:53,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 16:48:53,667 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:53,667 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:53,667 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:53,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:53,667 INFO L82 PathProgramCache]: Analyzing trace with hash 26807293, now seen corresponding path program 1 times [2019-12-07 16:48:53,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:53,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968552939] [2019-12-07 16:48:53,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:53,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:53,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968552939] [2019-12-07 16:48:53,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:53,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 16:48:53,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951998271] [2019-12-07 16:48:53,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:48:53,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:53,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:48:53,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:48:53,721 INFO L87 Difference]: Start difference. First operand 154 states and 189 transitions. Second operand 6 states. [2019-12-07 16:48:53,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:53,811 INFO L93 Difference]: Finished difference Result 302 states and 353 transitions. [2019-12-07 16:48:53,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:48:53,812 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-12-07 16:48:53,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:53,813 INFO L225 Difference]: With dead ends: 302 [2019-12-07 16:48:53,813 INFO L226 Difference]: Without dead ends: 301 [2019-12-07 16:48:53,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 16:48:53,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-12-07 16:48:53,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 161. [2019-12-07 16:48:53,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2019-12-07 16:48:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 196 transitions. [2019-12-07 16:48:53,820 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 196 transitions. Word has length 18 [2019-12-07 16:48:53,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:53,820 INFO L462 AbstractCegarLoop]: Abstraction has 161 states and 196 transitions. [2019-12-07 16:48:53,821 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:48:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 196 transitions. [2019-12-07 16:48:53,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 16:48:53,821 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:53,821 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:53,821 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:53,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:53,821 INFO L82 PathProgramCache]: Analyzing trace with hash -587336208, now seen corresponding path program 1 times [2019-12-07 16:48:53,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:53,822 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129972295] [2019-12-07 16:48:53,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:53,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:53,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129972295] [2019-12-07 16:48:53,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:53,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-07 16:48:53,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101955151] [2019-12-07 16:48:53,882 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 16:48:53,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:53,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:48:53,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:48:53,882 INFO L87 Difference]: Start difference. First operand 161 states and 196 transitions. Second operand 7 states. [2019-12-07 16:48:53,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:53,959 INFO L93 Difference]: Finished difference Result 201 states and 229 transitions. [2019-12-07 16:48:53,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 16:48:53,959 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-07 16:48:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:53,960 INFO L225 Difference]: With dead ends: 201 [2019-12-07 16:48:53,960 INFO L226 Difference]: Without dead ends: 180 [2019-12-07 16:48:53,960 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:48:53,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-12-07 16:48:53,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 154. [2019-12-07 16:48:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 16:48:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 188 transitions. [2019-12-07 16:48:53,967 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 188 transitions. Word has length 18 [2019-12-07 16:48:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:53,967 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 188 transitions. [2019-12-07 16:48:53,967 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 16:48:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 188 transitions. [2019-12-07 16:48:53,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 16:48:53,967 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:53,967 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:53,968 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:53,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:53,968 INFO L82 PathProgramCache]: Analyzing trace with hash -280176456, now seen corresponding path program 1 times [2019-12-07 16:48:53,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:53,968 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828385430] [2019-12-07 16:48:53,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:53,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:54,117 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828385430] [2019-12-07 16:48:54,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:54,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 16:48:54,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133628401] [2019-12-07 16:48:54,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 16:48:54,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:54,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 16:48:54,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-07 16:48:54,118 INFO L87 Difference]: Start difference. First operand 154 states and 188 transitions. Second operand 7 states. [2019-12-07 16:48:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:54,250 INFO L93 Difference]: Finished difference Result 181 states and 208 transitions. [2019-12-07 16:48:54,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-07 16:48:54,250 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2019-12-07 16:48:54,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:54,251 INFO L225 Difference]: With dead ends: 181 [2019-12-07 16:48:54,251 INFO L226 Difference]: Without dead ends: 180 [2019-12-07 16:48:54,252 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-12-07 16:48:54,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-12-07 16:48:54,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 154. [2019-12-07 16:48:54,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-12-07 16:48:54,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 187 transitions. [2019-12-07 16:48:54,258 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 187 transitions. Word has length 18 [2019-12-07 16:48:54,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:54,258 INFO L462 AbstractCegarLoop]: Abstraction has 154 states and 187 transitions. [2019-12-07 16:48:54,258 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 16:48:54,258 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 187 transitions. [2019-12-07 16:48:54,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 16:48:54,259 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:54,259 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:54,259 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:54,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1428543224, now seen corresponding path program 1 times [2019-12-07 16:48:54,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:54,259 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198661373] [2019-12-07 16:48:54,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:54,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:54,565 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198661373] [2019-12-07 16:48:54,565 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:54,565 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-12-07 16:48:54,565 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104429029] [2019-12-07 16:48:54,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-12-07 16:48:54,566 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:54,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-12-07 16:48:54,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2019-12-07 16:48:54,566 INFO L87 Difference]: Start difference. First operand 154 states and 187 transitions. Second operand 13 states. [2019-12-07 16:48:55,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:55,300 INFO L93 Difference]: Finished difference Result 335 states and 378 transitions. [2019-12-07 16:48:55,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-12-07 16:48:55,300 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2019-12-07 16:48:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:55,301 INFO L225 Difference]: With dead ends: 335 [2019-12-07 16:48:55,301 INFO L226 Difference]: Without dead ends: 310 [2019-12-07 16:48:55,302 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2019-12-07 16:48:55,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2019-12-07 16:48:55,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 156. [2019-12-07 16:48:55,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-07 16:48:55,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 188 transitions. [2019-12-07 16:48:55,309 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 188 transitions. Word has length 19 [2019-12-07 16:48:55,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:55,309 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 188 transitions. [2019-12-07 16:48:55,309 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-12-07 16:48:55,309 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 188 transitions. [2019-12-07 16:48:55,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 16:48:55,310 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:55,310 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:55,310 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:55,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:55,310 INFO L82 PathProgramCache]: Analyzing trace with hash -95529306, now seen corresponding path program 1 times [2019-12-07 16:48:55,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:55,310 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838957309] [2019-12-07 16:48:55,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:55,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:55,460 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838957309] [2019-12-07 16:48:55,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:55,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-12-07 16:48:55,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454951755] [2019-12-07 16:48:55,461 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 16:48:55,461 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:55,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 16:48:55,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-12-07 16:48:55,461 INFO L87 Difference]: Start difference. First operand 156 states and 188 transitions. Second operand 10 states. [2019-12-07 16:48:55,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:55,690 INFO L93 Difference]: Finished difference Result 187 states and 212 transitions. [2019-12-07 16:48:55,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-12-07 16:48:55,690 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 19 [2019-12-07 16:48:55,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:55,691 INFO L225 Difference]: With dead ends: 187 [2019-12-07 16:48:55,691 INFO L226 Difference]: Without dead ends: 184 [2019-12-07 16:48:55,692 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2019-12-07 16:48:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2019-12-07 16:48:55,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 158. [2019-12-07 16:48:55,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-12-07 16:48:55,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 188 transitions. [2019-12-07 16:48:55,702 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 188 transitions. Word has length 19 [2019-12-07 16:48:55,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:55,702 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 188 transitions. [2019-12-07 16:48:55,702 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 16:48:55,703 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 188 transitions. [2019-12-07 16:48:55,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 16:48:55,703 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:55,703 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:55,703 INFO L410 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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:55,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:55,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1747204931, now seen corresponding path program 1 times [2019-12-07 16:48:55,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:55,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845825627] [2019-12-07 16:48:55,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:55,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:55,772 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845825627] [2019-12-07 16:48:55,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:55,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 16:48:55,773 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919805210] [2019-12-07 16:48:55,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:48:55,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:55,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:48:55,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:48:55,774 INFO L87 Difference]: Start difference. First operand 158 states and 188 transitions. Second operand 6 states. [2019-12-07 16:48:55,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:55,855 INFO L93 Difference]: Finished difference Result 178 states and 208 transitions. [2019-12-07 16:48:55,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 16:48:55,856 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-12-07 16:48:55,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:55,856 INFO L225 Difference]: With dead ends: 178 [2019-12-07 16:48:55,857 INFO L226 Difference]: Without dead ends: 144 [2019-12-07 16:48:55,857 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:48:55,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-12-07 16:48:55,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 143. [2019-12-07 16:48:55,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-12-07 16:48:55,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 169 transitions. [2019-12-07 16:48:55,863 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 169 transitions. Word has length 20 [2019-12-07 16:48:55,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:55,863 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 169 transitions. [2019-12-07 16:48:55,863 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:48:55,863 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 169 transitions. [2019-12-07 16:48:55,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 16:48:55,863 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:55,863 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:55,863 INFO L410 AbstractCegarLoop]: === Iteration 22 === [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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:55,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:55,864 INFO L82 PathProgramCache]: Analyzing trace with hash 126799847, now seen corresponding path program 1 times [2019-12-07 16:48:55,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:55,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45588853] [2019-12-07 16:48:55,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:55,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45588853] [2019-12-07 16:48:55,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:55,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-07 16:48:55,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753467180] [2019-12-07 16:48:55,924 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 16:48:55,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:55,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 16:48:55,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 16:48:55,924 INFO L87 Difference]: Start difference. First operand 143 states and 169 transitions. Second operand 5 states. [2019-12-07 16:48:55,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:55,999 INFO L93 Difference]: Finished difference Result 191 states and 221 transitions. [2019-12-07 16:48:55,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 16:48:55,999 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2019-12-07 16:48:55,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:56,000 INFO L225 Difference]: With dead ends: 191 [2019-12-07 16:48:56,000 INFO L226 Difference]: Without dead ends: 190 [2019-12-07 16:48:56,000 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:48:56,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-12-07 16:48:56,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 143. [2019-12-07 16:48:56,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-12-07 16:48:56,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 169 transitions. [2019-12-07 16:48:56,007 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 169 transitions. Word has length 20 [2019-12-07 16:48:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:56,008 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 169 transitions. [2019-12-07 16:48:56,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 16:48:56,008 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 169 transitions. [2019-12-07 16:48:56,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-07 16:48:56,008 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:56,008 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 16:48:56,008 INFO L410 AbstractCegarLoop]: === Iteration 23 === [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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:56,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:56,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1333559098, now seen corresponding path program 1 times [2019-12-07 16:48:56,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:56,009 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563178347] [2019-12-07 16:48:56,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:56,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:56,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:56,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563178347] [2019-12-07 16:48:56,176 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:56,176 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-07 16:48:56,176 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30787619] [2019-12-07 16:48:56,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 16:48:56,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:56,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 16:48:56,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-12-07 16:48:56,177 INFO L87 Difference]: Start difference. First operand 143 states and 169 transitions. Second operand 11 states. [2019-12-07 16:48:56,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:56,472 INFO L93 Difference]: Finished difference Result 148 states and 171 transitions. [2019-12-07 16:48:56,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-07 16:48:56,472 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 20 [2019-12-07 16:48:56,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:56,473 INFO L225 Difference]: With dead ends: 148 [2019-12-07 16:48:56,473 INFO L226 Difference]: Without dead ends: 141 [2019-12-07 16:48:56,474 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2019-12-07 16:48:56,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-12-07 16:48:56,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 138. [2019-12-07 16:48:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-12-07 16:48:56,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 160 transitions. [2019-12-07 16:48:56,480 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 160 transitions. Word has length 20 [2019-12-07 16:48:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:56,480 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 160 transitions. [2019-12-07 16:48:56,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 16:48:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 160 transitions. [2019-12-07 16:48:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 16:48:56,480 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:56,480 INFO L410 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] [2019-12-07 16:48:56,481 INFO L410 AbstractCegarLoop]: === Iteration 24 === [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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:56,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1599765036, now seen corresponding path program 1 times [2019-12-07 16:48:56,481 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:56,481 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873956604] [2019-12-07 16:48:56,481 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 16:48:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 16:48:56,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873956604] [2019-12-07 16:48:56,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 16:48:56,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 16:48:56,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363649660] [2019-12-07 16:48:56,536 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 16:48:56,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 16:48:56,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 16:48:56,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-07 16:48:56,537 INFO L87 Difference]: Start difference. First operand 138 states and 160 transitions. Second operand 6 states. [2019-12-07 16:48:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 16:48:56,605 INFO L93 Difference]: Finished difference Result 183 states and 209 transitions. [2019-12-07 16:48:56,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 16:48:56,605 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2019-12-07 16:48:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 16:48:56,606 INFO L225 Difference]: With dead ends: 183 [2019-12-07 16:48:56,606 INFO L226 Difference]: Without dead ends: 182 [2019-12-07 16:48:56,607 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2019-12-07 16:48:56,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-12-07 16:48:56,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 158. [2019-12-07 16:48:56,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-12-07 16:48:56,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 190 transitions. [2019-12-07 16:48:56,616 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 190 transitions. Word has length 22 [2019-12-07 16:48:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 16:48:56,617 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 190 transitions. [2019-12-07 16:48:56,617 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 16:48:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 190 transitions. [2019-12-07 16:48:56,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-07 16:48:56,617 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 16:48:56,617 INFO L410 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] [2019-12-07 16:48:56,618 INFO L410 AbstractCegarLoop]: === Iteration 25 === [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.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr19ASSERT_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.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.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-12-07 16:48:56,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 16:48:56,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1595577417, now seen corresponding path program 1 times [2019-12-07 16:48:56,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 16:48:56,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604659466] [2019-12-07 16:48:56,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 16:48:56,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:48:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 16:48:56,652 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-12-07 16:48:56,652 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 16:48:56,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 04:48:56 BoogieIcfgContainer [2019-12-07 16:48:56,676 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 16:48:56,676 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 16:48:56,677 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 16:48:56,677 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 16:48:56,677 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 04:48:50" (3/4) ... [2019-12-07 16:48:56,679 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 16:48:56,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 16:48:56,681 INFO L168 Benchmark]: Toolchain (without parser) took 6981.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.2 MB). Free memory was 943.5 MB in the beginning and 1.0 GB in the end (delta: -103.7 MB). Peak memory consumption was 73.5 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:56,681 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:48:56,681 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:56,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:56,682 INFO L168 Benchmark]: Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:48:56,682 INFO L168 Benchmark]: RCFGBuilder took 486.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:56,683 INFO L168 Benchmark]: TraceAbstraction took 6216.83 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -19.9 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2019-12-07 16:48:56,683 INFO L168 Benchmark]: Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 16:48:56,685 INFO L335 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 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 218.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -149.9 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.99 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 486.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 60.7 MB). Peak memory consumption was 60.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6216.83 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 77.6 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: -19.9 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 100, overapproximation of bitwiseAnd at line 101. Possible FailurePath: [L216] unsigned int a ; [L217] unsigned int ma = __VERIFIER_nondet_uint(); [L218] signed char ea = __VERIFIER_nondet_char(); [L219] unsigned int b ; [L220] unsigned int mb = __VERIFIER_nondet_uint(); [L221] signed char eb = __VERIFIER_nondet_char(); [L222] unsigned int r_add1 ; [L223] unsigned int r_add2 ; [L224] unsigned int zero ; [L225] int tmp ; [L226] int tmp___0 ; [L227] int __retres14 ; [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND TRUE ! m [L20] __retres4 = 0U [L70] return (__retres4); [L231] zero = base2flt(0, 0) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND FALSE !(m >= 1U << 25U) [L66] m = m & ~ (1U << 24U) [L67] EXPR e + 128 [L67] res = m | ((unsigned int )(e + 128) << 24U) [L68] __retres4 = res [L70] return (__retres4); [L232] a = base2flt(ma, ea) [L15] unsigned int res ; [L16] unsigned int __retres4 ; [L19] COND FALSE !(! m) [L25] COND FALSE !(m < 1U << 24U) [L47] COND TRUE 1 [L49] COND TRUE m >= 1U << 25U [L54] COND TRUE e >= 127 [L55] __retres4 = 4294967295U [L70] return (__retres4); [L233] b = base2flt(mb, eb) [L74] unsigned int res ; [L75] unsigned int ma ; [L76] unsigned int mb ; [L77] unsigned int delta ; [L78] int ea ; [L79] int eb ; [L80] unsigned int tmp ; [L81] unsigned int __retres10 ; [L84] COND TRUE a < b [L85] tmp = a [L86] a = b [L87] b = tmp [L91] COND FALSE !(! b) [L98] ma = a & ((1U << 24U) - 1U) [L99] EXPR (int )(a >> 24U) - 128 [L99] ea = (int )(a >> 24U) - 128 [L100] ma = ma | (1U << 24U) [L101] mb = b & ((1U << 24U) - 1U) [L102] (int )(b >> 24U) - 128 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 120 locations, 38 error locations. Result: UNSAFE, OverallTime: 6.1s, OverallIterations: 25, TraceHistogramMax: 2, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 2739 SDtfs, 3453 SDslu, 8150 SDs, 0 SdLazy, 2572 SolverSat, 251 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161occurred in iteration=16, 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, 24 MinimizatonAttempts, 1384 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 33184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...