./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/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 00d015cea7b11aabc3ddec4842024b6b03cb0eb9 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/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 0.1.24-6b5699a [2019-11-26 02:15:21,170 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:15:21,172 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:15:21,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:15:21,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:15:21,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:15:21,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:15:21,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:15:21,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:15:21,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:15:21,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:15:21,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:15:21,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:15:21,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:15:21,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:15:21,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:15:21,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:15:21,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:15:21,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:15:21,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:15:21,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:15:21,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:15:21,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:15:21,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:15:21,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:15:21,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:15:21,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:15:21,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:15:21,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:15:21,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:15:21,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:15:21,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:15:21,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:15:21,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:15:21,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:15:21,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:15:21,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:15:21,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:15:21,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:15:21,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:15:21,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:15:21,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2019-11-26 02:15:21,268 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:15:21,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:15:21,269 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:15:21,269 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:15:21,270 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:15:21,270 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:15:21,270 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:15:21,270 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:15:21,270 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:15:21,270 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:15:21,271 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:15:21,271 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:15:21,271 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:15:21,271 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:15:21,271 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:15:21,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:15:21,272 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:15:21,272 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:15:21,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:15:21,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:15:21,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:15:21,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:15:21,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:15:21,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:15:21,273 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:15:21,274 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:15:21,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:15:21,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:15:21,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:15:21,274 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:15:21,275 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:15:21,275 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:15:21,275 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:15:21,275 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:15:21,275 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:15:21,276 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:15:21,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:15:21,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:15:21,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:15:21,286 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_0baeea56-dda9-42e5-9565-cc022d05821a/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 -> 00d015cea7b11aabc3ddec4842024b6b03cb0eb9 [2019-11-26 02:15:21,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:15:21,472 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:15:21,476 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:15:21,477 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:15:21,477 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:15:21,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/../../sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2019-11-26 02:15:21,538 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/data/ad12be21d/bb6461d23e554f44ba94fa4b262ab567/FLAG835e30e2d [2019-11-26 02:15:21,960 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:15:21,960 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/sv-benchmarks/c/bitvector/s3_srvr_1a_alt.BV.c.cil.c [2019-11-26 02:15:21,971 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/data/ad12be21d/bb6461d23e554f44ba94fa4b262ab567/FLAG835e30e2d [2019-11-26 02:15:22,264 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/data/ad12be21d/bb6461d23e554f44ba94fa4b262ab567 [2019-11-26 02:15:22,267 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:15:22,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:15:22,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:15:22,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:15:22,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:15:22,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6744b18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22, skipping insertion in model container [2019-11-26 02:15:22,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:15:22,321 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:15:22,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:15:22,634 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:15:22,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:15:22,719 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:15:22,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22 WrapperNode [2019-11-26 02:15:22,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:15:22,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:15:22,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:15:22,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:15:22,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,776 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:15:22,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:15:22,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:15:22,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:15:22,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... [2019-11-26 02:15:22,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:15:22,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:15:22,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:15:22,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:15:22,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/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 [2019-11-26 02:15:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:15:22,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:15:23,127 WARN L735 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-11-26 02:15:23,791 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2019-11-26 02:15:23,791 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2019-11-26 02:15:24,029 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:15:24,029 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-26 02:15:24,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:24 BoogieIcfgContainer [2019-11-26 02:15:24,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:15:24,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:15:24,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:15:24,034 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:15:24,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:15:22" (1/3) ... [2019-11-26 02:15:24,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7946f058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:15:24, skipping insertion in model container [2019-11-26 02:15:24,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:15:22" (2/3) ... [2019-11-26 02:15:24,035 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7946f058 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:15:24, skipping insertion in model container [2019-11-26 02:15:24,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:24" (3/3) ... [2019-11-26 02:15:24,037 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a_alt.BV.c.cil.c [2019-11-26 02:15:24,046 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:15:24,052 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-11-26 02:15:24,062 INFO L249 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-11-26 02:15:24,093 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:15:24,093 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:15:24,093 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:15:24,094 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:15:24,094 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:15:24,094 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:15:24,094 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:15:24,094 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:15:24,124 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2019-11-26 02:15:24,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:15:24,132 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:24,133 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:24,134 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:24,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:24,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1042426614, now seen corresponding path program 1 times [2019-11-26 02:15:24,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:24,147 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249472478] [2019-11-26 02:15:24,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:24,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:24,297 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249472478] [2019-11-26 02:15:24,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:24,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:24,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166095215] [2019-11-26 02:15:24,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:24,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:24,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:24,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:24,318 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 3 states. [2019-11-26 02:15:24,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:24,559 INFO L93 Difference]: Finished difference Result 278 states and 447 transitions. [2019-11-26 02:15:24,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:24,562 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-11-26 02:15:24,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:24,579 INFO L225 Difference]: With dead ends: 278 [2019-11-26 02:15:24,580 INFO L226 Difference]: Without dead ends: 141 [2019-11-26 02:15:24,588 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 [2019-11-26 02:15:24,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-11-26 02:15:24,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2019-11-26 02:15:24,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-11-26 02:15:24,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 197 transitions. [2019-11-26 02:15:24,662 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 197 transitions. Word has length 11 [2019-11-26 02:15:24,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:24,662 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 197 transitions. [2019-11-26 02:15:24,662 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:24,662 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 197 transitions. [2019-11-26 02:15:24,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-26 02:15:24,663 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:24,663 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:24,665 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:24,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:24,665 INFO L82 PathProgramCache]: Analyzing trace with hash 474397028, now seen corresponding path program 1 times [2019-11-26 02:15:24,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:24,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072356515] [2019-11-26 02:15:24,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:24,743 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072356515] [2019-11-26 02:15:24,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:24,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:24,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165114136] [2019-11-26 02:15:24,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:24,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:24,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:24,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:24,745 INFO L87 Difference]: Start difference. First operand 141 states and 197 transitions. Second operand 3 states. [2019-11-26 02:15:24,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:24,925 INFO L93 Difference]: Finished difference Result 289 states and 403 transitions. [2019-11-26 02:15:24,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:24,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-26 02:15:24,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:24,927 INFO L225 Difference]: With dead ends: 289 [2019-11-26 02:15:24,927 INFO L226 Difference]: Without dead ends: 150 [2019-11-26 02:15:24,929 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 [2019-11-26 02:15:24,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2019-11-26 02:15:24,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 142. [2019-11-26 02:15:24,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-11-26 02:15:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 198 transitions. [2019-11-26 02:15:24,952 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 198 transitions. Word has length 13 [2019-11-26 02:15:24,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:24,953 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 198 transitions. [2019-11-26 02:15:24,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:24,954 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 198 transitions. [2019-11-26 02:15:24,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-26 02:15:24,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:24,955 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:24,956 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:24,956 INFO L82 PathProgramCache]: Analyzing trace with hash -790889938, now seen corresponding path program 1 times [2019-11-26 02:15:24,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:24,957 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552887773] [2019-11-26 02:15:24,957 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:25,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:25,015 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552887773] [2019-11-26 02:15:25,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:25,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:25,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617043107] [2019-11-26 02:15:25,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:25,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:25,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:25,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:25,016 INFO L87 Difference]: Start difference. First operand 142 states and 198 transitions. Second operand 3 states. [2019-11-26 02:15:25,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:25,162 INFO L93 Difference]: Finished difference Result 291 states and 405 transitions. [2019-11-26 02:15:25,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:25,163 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-11-26 02:15:25,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:25,165 INFO L225 Difference]: With dead ends: 291 [2019-11-26 02:15:25,165 INFO L226 Difference]: Without dead ends: 151 [2019-11-26 02:15:25,166 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 [2019-11-26 02:15:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2019-11-26 02:15:25,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 143. [2019-11-26 02:15:25,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2019-11-26 02:15:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 199 transitions. [2019-11-26 02:15:25,179 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 199 transitions. Word has length 14 [2019-11-26 02:15:25,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:25,180 INFO L462 AbstractCegarLoop]: Abstraction has 143 states and 199 transitions. [2019-11-26 02:15:25,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:25,180 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 199 transitions. [2019-11-26 02:15:25,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-26 02:15:25,181 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:25,181 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:25,181 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:25,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:25,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1807417943, now seen corresponding path program 1 times [2019-11-26 02:15:25,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:25,182 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832546569] [2019-11-26 02:15:25,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:25,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:25,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:25,236 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832546569] [2019-11-26 02:15:25,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:25,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:25,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508316556] [2019-11-26 02:15:25,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:25,238 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:25,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:25,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:25,238 INFO L87 Difference]: Start difference. First operand 143 states and 199 transitions. Second operand 3 states. [2019-11-26 02:15:25,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:25,379 INFO L93 Difference]: Finished difference Result 293 states and 407 transitions. [2019-11-26 02:15:25,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:25,381 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-26 02:15:25,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:25,383 INFO L225 Difference]: With dead ends: 293 [2019-11-26 02:15:25,383 INFO L226 Difference]: Without dead ends: 152 [2019-11-26 02:15:25,384 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 [2019-11-26 02:15:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-11-26 02:15:25,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 144. [2019-11-26 02:15:25,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-26 02:15:25,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 200 transitions. [2019-11-26 02:15:25,402 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 200 transitions. Word has length 15 [2019-11-26 02:15:25,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:25,402 INFO L462 AbstractCegarLoop]: Abstraction has 144 states and 200 transitions. [2019-11-26 02:15:25,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 200 transitions. [2019-11-26 02:15:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-26 02:15:25,404 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:25,404 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:25,404 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:25,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:25,404 INFO L82 PathProgramCache]: Analyzing trace with hash 592614547, now seen corresponding path program 1 times [2019-11-26 02:15:25,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:25,405 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241908426] [2019-11-26 02:15:25,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:25,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:25,465 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241908426] [2019-11-26 02:15:25,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:25,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:25,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772429746] [2019-11-26 02:15:25,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:25,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:25,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:25,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:25,467 INFO L87 Difference]: Start difference. First operand 144 states and 200 transitions. Second operand 3 states. [2019-11-26 02:15:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:25,605 INFO L93 Difference]: Finished difference Result 295 states and 409 transitions. [2019-11-26 02:15:25,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:25,606 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-11-26 02:15:25,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:25,607 INFO L225 Difference]: With dead ends: 295 [2019-11-26 02:15:25,607 INFO L226 Difference]: Without dead ends: 153 [2019-11-26 02:15:25,608 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 [2019-11-26 02:15:25,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-11-26 02:15:25,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 145. [2019-11-26 02:15:25,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-11-26 02:15:25,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 201 transitions. [2019-11-26 02:15:25,620 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 201 transitions. Word has length 16 [2019-11-26 02:15:25,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:25,620 INFO L462 AbstractCegarLoop]: Abstraction has 145 states and 201 transitions. [2019-11-26 02:15:25,620 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:25,620 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 201 transitions. [2019-11-26 02:15:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-26 02:15:25,622 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:25,622 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, 1, 1, 1, 1] [2019-11-26 02:15:25,622 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:25,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:25,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1809291799, now seen corresponding path program 1 times [2019-11-26 02:15:25,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:25,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743246368] [2019-11-26 02:15:25,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:25,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:25,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:25,700 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743246368] [2019-11-26 02:15:25,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:25,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:25,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635678037] [2019-11-26 02:15:25,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:25,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:25,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:25,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:25,702 INFO L87 Difference]: Start difference. First operand 145 states and 201 transitions. Second operand 3 states. [2019-11-26 02:15:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:25,884 INFO L93 Difference]: Finished difference Result 325 states and 457 transitions. [2019-11-26 02:15:25,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:25,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-26 02:15:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:25,886 INFO L225 Difference]: With dead ends: 325 [2019-11-26 02:15:25,886 INFO L226 Difference]: Without dead ends: 182 [2019-11-26 02:15:25,887 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 [2019-11-26 02:15:25,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-11-26 02:15:25,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 168. [2019-11-26 02:15:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-11-26 02:15:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 237 transitions. [2019-11-26 02:15:25,904 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 237 transitions. Word has length 26 [2019-11-26 02:15:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:25,905 INFO L462 AbstractCegarLoop]: Abstraction has 168 states and 237 transitions. [2019-11-26 02:15:25,905 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:25,905 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 237 transitions. [2019-11-26 02:15:25,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-11-26 02:15:25,906 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:25,906 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, 1, 1, 1, 1, 1] [2019-11-26 02:15:25,907 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:25,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:25,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1821477165, now seen corresponding path program 1 times [2019-11-26 02:15:25,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:25,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446400870] [2019-11-26 02:15:25,908 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:25,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:25,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446400870] [2019-11-26 02:15:25,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:25,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:25,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102593120] [2019-11-26 02:15:25,968 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:25,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:25,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:25,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:25,969 INFO L87 Difference]: Start difference. First operand 168 states and 237 transitions. Second operand 3 states. [2019-11-26 02:15:26,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:26,101 INFO L93 Difference]: Finished difference Result 360 states and 516 transitions. [2019-11-26 02:15:26,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:26,101 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2019-11-26 02:15:26,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:26,103 INFO L225 Difference]: With dead ends: 360 [2019-11-26 02:15:26,103 INFO L226 Difference]: Without dead ends: 194 [2019-11-26 02:15:26,103 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 [2019-11-26 02:15:26,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-11-26 02:15:26,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 180. [2019-11-26 02:15:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2019-11-26 02:15:26,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 260 transitions. [2019-11-26 02:15:26,116 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 260 transitions. Word has length 27 [2019-11-26 02:15:26,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:26,116 INFO L462 AbstractCegarLoop]: Abstraction has 180 states and 260 transitions. [2019-11-26 02:15:26,116 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:26,117 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 260 transitions. [2019-11-26 02:15:26,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:15:26,122 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:26,123 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:26,123 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:26,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:26,123 INFO L82 PathProgramCache]: Analyzing trace with hash -209400343, now seen corresponding path program 1 times [2019-11-26 02:15:26,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:26,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631206006] [2019-11-26 02:15:26,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:26,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:26,181 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631206006] [2019-11-26 02:15:26,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:26,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:26,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987907730] [2019-11-26 02:15:26,182 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:26,182 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:26,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:26,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:26,183 INFO L87 Difference]: Start difference. First operand 180 states and 260 transitions. Second operand 3 states. [2019-11-26 02:15:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:26,334 INFO L93 Difference]: Finished difference Result 387 states and 565 transitions. [2019-11-26 02:15:26,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:26,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2019-11-26 02:15:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:26,336 INFO L225 Difference]: With dead ends: 387 [2019-11-26 02:15:26,336 INFO L226 Difference]: Without dead ends: 209 [2019-11-26 02:15:26,337 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 [2019-11-26 02:15:26,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-11-26 02:15:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2019-11-26 02:15:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-11-26 02:15:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 306 transitions. [2019-11-26 02:15:26,347 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 306 transitions. Word has length 38 [2019-11-26 02:15:26,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:26,348 INFO L462 AbstractCegarLoop]: Abstraction has 209 states and 306 transitions. [2019-11-26 02:15:26,348 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:26,348 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 306 transitions. [2019-11-26 02:15:26,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-11-26 02:15:26,352 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:26,353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:26,353 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:26,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:26,353 INFO L82 PathProgramCache]: Analyzing trace with hash -2139332464, now seen corresponding path program 1 times [2019-11-26 02:15:26,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:26,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212715399] [2019-11-26 02:15:26,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:26,370 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-26 02:15:26,371 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606905627] [2019-11-26 02:15:26,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:15:26,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:26,446 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-26 02:15:26,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:15:26,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:26,485 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:15:26,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:26,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212715399] [2019-11-26 02:15:26,498 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:15:26,498 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606905627] [2019-11-26 02:15:26,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:26,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-26 02:15:26,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501602193] [2019-11-26 02:15:26,500 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-26 02:15:26,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:26,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-26 02:15:26,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:15:26,501 INFO L87 Difference]: Start difference. First operand 209 states and 306 transitions. Second operand 4 states. [2019-11-26 02:15:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:26,784 INFO L93 Difference]: Finished difference Result 515 states and 773 transitions. [2019-11-26 02:15:26,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-26 02:15:26,784 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-11-26 02:15:26,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:26,786 INFO L225 Difference]: With dead ends: 515 [2019-11-26 02:15:26,786 INFO L226 Difference]: Without dead ends: 308 [2019-11-26 02:15:26,787 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-26 02:15:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-11-26 02:15:26,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 292. [2019-11-26 02:15:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-11-26 02:15:26,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 410 transitions. [2019-11-26 02:15:26,806 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 410 transitions. Word has length 38 [2019-11-26 02:15:26,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:26,808 INFO L462 AbstractCegarLoop]: Abstraction has 292 states and 410 transitions. [2019-11-26 02:15:26,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-26 02:15:26,808 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 410 transitions. [2019-11-26 02:15:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-11-26 02:15:26,809 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:26,809 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:27,014 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:15:27,014 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:27,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:27,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1344498589, now seen corresponding path program 1 times [2019-11-26 02:15:27,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:27,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398968359] [2019-11-26 02:15:27,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:27,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:15:27,046 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398968359] [2019-11-26 02:15:27,047 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:27,047 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-26 02:15:27,047 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177756400] [2019-11-26 02:15:27,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:27,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:27,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:27,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:27,048 INFO L87 Difference]: Start difference. First operand 292 states and 410 transitions. Second operand 3 states. [2019-11-26 02:15:27,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:27,241 INFO L93 Difference]: Finished difference Result 380 states and 530 transitions. [2019-11-26 02:15:27,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:27,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-11-26 02:15:27,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:27,244 INFO L225 Difference]: With dead ends: 380 [2019-11-26 02:15:27,244 INFO L226 Difference]: Without dead ends: 349 [2019-11-26 02:15:27,245 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 [2019-11-26 02:15:27,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-11-26 02:15:27,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-11-26 02:15:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-11-26 02:15:27,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 496 transitions. [2019-11-26 02:15:27,264 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 496 transitions. Word has length 40 [2019-11-26 02:15:27,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:27,264 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 496 transitions. [2019-11-26 02:15:27,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 496 transitions. [2019-11-26 02:15:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-11-26 02:15:27,266 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:27,267 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:27,267 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:27,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:27,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1722858433, now seen corresponding path program 1 times [2019-11-26 02:15:27,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:27,268 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002556002] [2019-11-26 02:15:27,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:27,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:15:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:15:27,309 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002556002] [2019-11-26 02:15:27,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:15:27,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-26 02:15:27,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53607567] [2019-11-26 02:15:27,310 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-26 02:15:27,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:15:27,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-26 02:15:27,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:27,311 INFO L87 Difference]: Start difference. First operand 349 states and 496 transitions. Second operand 3 states. [2019-11-26 02:15:27,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:15:27,437 INFO L93 Difference]: Finished difference Result 717 states and 1021 transitions. [2019-11-26 02:15:27,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-26 02:15:27,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2019-11-26 02:15:27,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:15:27,440 INFO L225 Difference]: With dead ends: 717 [2019-11-26 02:15:27,440 INFO L226 Difference]: Without dead ends: 370 [2019-11-26 02:15:27,441 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-26 02:15:27,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2019-11-26 02:15:27,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 368. [2019-11-26 02:15:27,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 368 states. [2019-11-26 02:15:27,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 518 transitions. [2019-11-26 02:15:27,457 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 518 transitions. Word has length 59 [2019-11-26 02:15:27,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:15:27,458 INFO L462 AbstractCegarLoop]: Abstraction has 368 states and 518 transitions. [2019-11-26 02:15:27,459 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-26 02:15:27,459 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 518 transitions. [2019-11-26 02:15:27,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-11-26 02:15:27,460 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:15:27,460 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:15:27,460 INFO L410 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-26 02:15:27,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:15:27,461 INFO L82 PathProgramCache]: Analyzing trace with hash 2007412819, now seen corresponding path program 1 times [2019-11-26 02:15:27,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:15:27,461 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372046378] [2019-11-26 02:15:27,461 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:15:27,477 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-26 02:15:27,477 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [131844991] [2019-11-26 02:15:27,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0baeea56-dda9-42e5-9565-cc022d05821a/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:15:27,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:15:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 02:15:27,715 INFO L174 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-26 02:15:27,716 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-26 02:15:27,916 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:15:28,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:15:28 BoogieIcfgContainer [2019-11-26 02:15:28,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:15:28,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:15:28,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:15:28,010 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:15:28,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:15:24" (3/4) ... [2019-11-26 02:15:28,013 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-26 02:15:28,014 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:15:28,020 INFO L168 Benchmark]: Toolchain (without parser) took 5746.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 193.5 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -213.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:28,020 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:28,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 450.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:28,022 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:28,022 INFO L168 Benchmark]: Boogie Preprocessor took 59.77 ms. Allocated memory is still 1.2 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. [2019-11-26 02:15:28,023 INFO L168 Benchmark]: RCFGBuilder took 1193.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:15:28,026 INFO L168 Benchmark]: TraceAbstraction took 3977.91 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -115.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:28,027 INFO L168 Benchmark]: Witness Printer took 4.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:15:28,032 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 450.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -184.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.77 ms. Allocated memory is still 1.2 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. * RCFGBuilder took 1193.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 81.5 MB). Peak memory consumption was 81.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3977.91 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 51.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -115.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 4.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 543]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 88. Possible FailurePath: [L687] int s ; [L688] int tmp ; [L692] s = 8464 [L12] int s__info_callback = __VERIFIER_nondet_int(); [L13] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L14] int s__state ; [L15] int s__new_session ; [L16] int s__server ; [L17] int s__version = __VERIFIER_nondet_int(); [L18] int s__type ; [L19] int s__init_num ; [L20] int s__hit = __VERIFIER_nondet_int(); [L21] int s__rwstate ; [L22] int s__init_buf___0 ; [L23] int s__debug = __VERIFIER_nondet_int(); [L24] int s__shutdown ; [L25] int s__cert = __VERIFIER_nondet_int(); [L26] int s__options = __VERIFIER_nondet_int(); [L27] int s__verify_mode = __VERIFIER_nondet_int(); [L28] int s__session__peer = __VERIFIER_nondet_int(); [L29] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int(); [L30] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L31] int s__ctx__stats__sess_accept_renegotiate ; [L32] int s__ctx__stats__sess_accept ; [L33] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int(); [L34] int s__s3__tmp__cert_request ; [L35] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__use_rsa_tmp ; [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int buf = __VERIFIER_nondet_int(); [L43] unsigned long l ; [L44] unsigned long Time ; [L45] unsigned long tmp = __VERIFIER_nondet_ulong(); [L46] int cb ; [L47] long num1 ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int got_new_session ; [L53] int tmp___1 = __VERIFIER_nondet_int(); [L54] int tmp___2 = __VERIFIER_nondet_int(); [L55] int tmp___3 ; [L56] int tmp___4 ; [L57] int tmp___5 ; [L58] int tmp___6 ; [L59] int tmp___7 ; [L60] long tmp___8 = __VERIFIER_nondet_long(); [L61] int tmp___9 ; [L62] int tmp___10 ; [L63] int blastFlag ; [L64] int ag_X ; [L65] int ag_Y = __VERIFIER_nondet_int(); [L66] int ag_Z ; [L67] int __retres70 ; [L71] s__state = initial_state [L72] blastFlag = 0 [L73] Time = tmp [L74] cb = 0 [L75] ret = -1 [L76] skip = 0 [L77] got_new_session = 0 [L78] COND TRUE s__info_callback != 0 [L79] cb = s__info_callback [L87] s__in_handshake = s__in_handshake + 1 [L88] COND FALSE !(tmp___1 & 12288) [L97] COND FALSE !(s__cert == 0) [L104] COND TRUE 1 [L106] state = s__state [L107] COND FALSE !(s__state == 12292) [L110] COND FALSE !(s__state == 16384) [L113] COND FALSE !(s__state == 8192) [L116] COND FALSE !(s__state == 24576) [L119] COND FALSE !(s__state == 8195) [L122] COND FALSE !(s__state == 8480) [L125] COND FALSE !(s__state == 8481) [L128] COND FALSE !(s__state == 8482) [L131] COND TRUE s__state == 8464 [L289] s__shutdown = 0 [L290] ret = __VERIFIER_nondet_int() [L291] COND TRUE blastFlag == 0 [L292] blastFlag = 1 [L296] COND FALSE !(ret <= 0) [L301] got_new_session = 1 [L302] s__state = 8496 [L303] s__init_num = 0 [L636] COND FALSE !(! s__s3__tmp__reuse_message) [L665] skip = 0 [L104] COND TRUE 1 [L106] state = s__state [L107] COND FALSE !(s__state == 12292) [L110] COND FALSE !(s__state == 16384) [L113] COND FALSE !(s__state == 8192) [L116] COND FALSE !(s__state == 24576) [L119] COND FALSE !(s__state == 8195) [L122] COND FALSE !(s__state == 8480) [L125] COND FALSE !(s__state == 8481) [L128] COND FALSE !(s__state == 8482) [L131] COND FALSE !(s__state == 8464) [L134] COND FALSE !(s__state == 8465) [L137] COND FALSE !(s__state == 8466) [L140] COND TRUE s__state == 8496 [L307] ret = __VERIFIER_nondet_int() [L308] COND TRUE blastFlag == 1 [L309] blastFlag = 2 [L313] COND FALSE !(ret <= 0) [L318] COND TRUE \read(s__hit) [L319] s__state = 8656 [L323] s__init_num = 0 [L636] COND FALSE !(! s__s3__tmp__reuse_message) [L665] skip = 0 [L104] COND TRUE 1 [L106] state = s__state [L107] COND FALSE !(s__state == 12292) [L110] COND FALSE !(s__state == 16384) [L113] COND FALSE !(s__state == 8192) [L116] COND FALSE !(s__state == 24576) [L119] COND FALSE !(s__state == 8195) [L122] COND FALSE !(s__state == 8480) [L125] COND FALSE !(s__state == 8481) [L128] COND FALSE !(s__state == 8482) [L131] COND FALSE !(s__state == 8464) [L134] COND FALSE !(s__state == 8465) [L137] COND FALSE !(s__state == 8466) [L140] COND FALSE !(s__state == 8496) [L143] COND FALSE !(s__state == 8497) [L146] COND FALSE !(s__state == 8512) [L149] COND FALSE !(s__state == 8513) [L152] COND FALSE !(s__state == 8528) [L155] COND FALSE !(s__state == 8529) [L158] COND FALSE !(s__state == 8544) [L161] COND FALSE !(s__state == 8545) [L164] COND FALSE !(s__state == 8560) [L167] COND FALSE !(s__state == 8561) [L170] COND FALSE !(s__state == 8448) [L173] COND FALSE !(s__state == 8576) [L176] COND FALSE !(s__state == 8577) [L179] COND FALSE !(s__state == 8592) [L182] COND FALSE !(s__state == 8593) [L185] COND FALSE !(s__state == 8608) [L188] COND FALSE !(s__state == 8609) [L191] COND FALSE !(s__state == 8640) [L194] COND FALSE !(s__state == 8641) [L197] COND TRUE s__state == 8656 [L524] s__session__cipher = s__s3__tmp__new_cipher [L525] tmp___9 = __VERIFIER_nondet_int() [L526] COND FALSE !(! tmp___9) [L532] ret = __VERIFIER_nondet_int() [L533] COND TRUE blastFlag == 2 [L534] blastFlag = 3 [L538] COND FALSE !(ret <= 0) [L543] ag_X * ag_Y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 131 locations, 12 error locations. Result: UNSAFE, OverallTime: 3.9s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1332 SDtfs, 1395 SDslu, 335 SDs, 0 SdLazy, 1056 SolverSat, 381 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=368occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 78 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 366 NumberOfCodeBlocks, 366 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 28572 SizeOfPredicates, 4 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 39/39 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...