./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/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 1e2636975b74961c8ccae2b8c5a585d0b63b6e0a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:39:20,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:20,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:20,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:20,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:20,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:20,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:20,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:20,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:20,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:20,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:20,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:20,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:20,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:20,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:20,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:20,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:20,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:20,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:20,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:20,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:20,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:20,367 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:20,368 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:20,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:20,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:20,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:20,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:20,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:20,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:20,377 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:20,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:20,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:20,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:20,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:20,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:20,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:20,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:20,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:20,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:20,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:20,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-28 07:39:20,414 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:20,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:20,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:20,416 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:20,416 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:20,417 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:20,417 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:39:20,417 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:20,417 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:20,417 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:39:20,418 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:39:20,418 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:20,418 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:39:20,418 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:39:20,418 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:39:20,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:20,419 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:20,420 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:39:20,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:39:20,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:20,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:20,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:20,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:20,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:20,421 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 07:39:20,421 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:20,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:20,422 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:20,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:20,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:20,422 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:20,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:20,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:20,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:20,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:20,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:20,424 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:39:20,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:39:20,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:20,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:20,425 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:20,425 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e2636975b74961c8ccae2b8c5a585d0b63b6e0a [2020-11-28 07:39:20,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:20,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:20,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:20,732 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:20,733 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:20,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/../../sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-1a.c [2020-11-28 07:39:20,795 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/data/7a7091595/fd229e9a64c94bf095fe29aab6d04b26/FLAG52ae64957 [2020-11-28 07:39:21,254 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:21,256 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/sv-benchmarks/c/bitvector/s3_clnt_1.BV.c.cil-1a.c [2020-11-28 07:39:21,267 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/data/7a7091595/fd229e9a64c94bf095fe29aab6d04b26/FLAG52ae64957 [2020-11-28 07:39:21,598 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/data/7a7091595/fd229e9a64c94bf095fe29aab6d04b26 [2020-11-28 07:39:21,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:21,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:21,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:21,603 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:21,607 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:21,608 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:21,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73b4cd74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21, skipping insertion in model container [2020-11-28 07:39:21,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:21,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:21,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:21,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:21,924 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:21,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:21,991 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:21,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21 WrapperNode [2020-11-28 07:39:21,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:21,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:21,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:21,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:22,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:22,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:22,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:22,051 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:22,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... [2020-11-28 07:39:22,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:22,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:22,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:22,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:22,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6846a2d-7b7b-477b-bc2e-29d6d1be3f87/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:22,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:39:22,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:22,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:22,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:22,478 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-11-28 07:39:23,247 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-11-28 07:39:23,247 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-11-28 07:39:23,692 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:23,693 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 07:39:23,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:23 BoogieIcfgContainer [2020-11-28 07:39:23,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:23,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:23,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:23,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:23,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:21" (1/3) ... [2020-11-28 07:39:23,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6880501a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:23, skipping insertion in model container [2020-11-28 07:39:23,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:21" (2/3) ... [2020-11-28 07:39:23,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6880501a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:23, skipping insertion in model container [2020-11-28 07:39:23,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:23" (3/3) ... [2020-11-28 07:39:23,716 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.BV.c.cil-1a.c [2020-11-28 07:39:23,727 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:23,731 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-11-28 07:39:23,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-11-28 07:39:23,764 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:23,764 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:23,765 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:23,765 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:23,765 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:23,765 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:23,765 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:23,766 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:23,783 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2020-11-28 07:39:23,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 07:39:23,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:23,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:23,789 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:39:23,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:23,794 INFO L82 PathProgramCache]: Analyzing trace with hash 627874012, now seen corresponding path program 1 times [2020-11-28 07:39:23,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:23,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341728025] [2020-11-28 07:39:23,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:23,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341728025] [2020-11-28 07:39:23,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:23,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:39:23,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782439276] [2020-11-28 07:39:23,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:39:23,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:23,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:39:24,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:39:24,002 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 3 states. [2020-11-28 07:39:24,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:24,236 INFO L93 Difference]: Finished difference Result 255 states and 389 transitions. [2020-11-28 07:39:24,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:24,240 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-28 07:39:24,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:24,254 INFO L225 Difference]: With dead ends: 255 [2020-11-28 07:39:24,255 INFO L226 Difference]: Without dead ends: 126 [2020-11-28 07:39:24,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:39:24,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-11-28 07:39:24,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-11-28 07:39:24,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-11-28 07:39:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 167 transitions. [2020-11-28 07:39:24,328 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 167 transitions. Word has length 13 [2020-11-28 07:39:24,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:24,328 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 167 transitions. [2020-11-28 07:39:24,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:39:24,329 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 167 transitions. [2020-11-28 07:39:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-28 07:39:24,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:24,334 INFO L422 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] [2020-11-28 07:39:24,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:39:24,335 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:39:24,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:24,339 INFO L82 PathProgramCache]: Analyzing trace with hash 642532615, now seen corresponding path program 1 times [2020-11-28 07:39:24,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:24,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426244242] [2020-11-28 07:39:24,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:24,440 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426244242] [2020-11-28 07:39:24,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:24,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:39:24,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144258688] [2020-11-28 07:39:24,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:39:24,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:24,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:39:24,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:39:24,444 INFO L87 Difference]: Start difference. First operand 126 states and 167 transitions. Second operand 3 states. [2020-11-28 07:39:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:24,700 INFO L93 Difference]: Finished difference Result 264 states and 355 transitions. [2020-11-28 07:39:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:24,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2020-11-28 07:39:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:24,703 INFO L225 Difference]: With dead ends: 264 [2020-11-28 07:39:24,703 INFO L226 Difference]: Without dead ends: 141 [2020-11-28 07:39:24,704 INFO L677 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 [2020-11-28 07:39:24,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-11-28 07:39:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 139. [2020-11-28 07:39:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-11-28 07:39:24,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2020-11-28 07:39:24,724 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 23 [2020-11-28 07:39:24,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:24,725 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2020-11-28 07:39:24,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:39:24,725 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2020-11-28 07:39:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-11-28 07:39:24,726 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:24,727 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-28 07:39:24,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:39:24,728 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:39:24,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:24,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1691166986, now seen corresponding path program 1 times [2020-11-28 07:39:24,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:24,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054013620] [2020-11-28 07:39:24,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:24,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:24,843 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 07:39:24,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054013620] [2020-11-28 07:39:24,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:24,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:39:24,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265304081] [2020-11-28 07:39:24,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:39:24,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:24,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:39:24,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:39:24,846 INFO L87 Difference]: Start difference. First operand 139 states and 183 transitions. Second operand 3 states. [2020-11-28 07:39:25,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:25,045 INFO L93 Difference]: Finished difference Result 292 states and 391 transitions. [2020-11-28 07:39:25,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:25,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2020-11-28 07:39:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:25,048 INFO L225 Difference]: With dead ends: 292 [2020-11-28 07:39:25,048 INFO L226 Difference]: Without dead ends: 156 [2020-11-28 07:39:25,050 INFO L677 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 [2020-11-28 07:39:25,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-11-28 07:39:25,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 154. [2020-11-28 07:39:25,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-11-28 07:39:25,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2020-11-28 07:39:25,061 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 34 [2020-11-28 07:39:25,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:25,061 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2020-11-28 07:39:25,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:39:25,062 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2020-11-28 07:39:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-11-28 07:39:25,063 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:25,064 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:25,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:39:25,066 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:39:25,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:25,067 INFO L82 PathProgramCache]: Analyzing trace with hash 885281373, now seen corresponding path program 1 times [2020-11-28 07:39:25,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:25,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575862687] [2020-11-28 07:39:25,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-11-28 07:39:25,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575862687] [2020-11-28 07:39:25,212 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:25,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 07:39:25,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048446477] [2020-11-28 07:39:25,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 07:39:25,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:25,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 07:39:25,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:39:25,214 INFO L87 Difference]: Start difference. First operand 154 states and 201 transitions. Second operand 3 states. [2020-11-28 07:39:25,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:25,234 INFO L93 Difference]: Finished difference Result 154 states and 201 transitions. [2020-11-28 07:39:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:25,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-11-28 07:39:25,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:25,237 INFO L225 Difference]: With dead ends: 154 [2020-11-28 07:39:25,238 INFO L226 Difference]: Without dead ends: 153 [2020-11-28 07:39:25,238 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 07:39:25,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-11-28 07:39:25,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-11-28 07:39:25,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-11-28 07:39:25,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 200 transitions. [2020-11-28 07:39:25,255 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 200 transitions. Word has length 47 [2020-11-28 07:39:25,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:25,255 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 200 transitions. [2020-11-28 07:39:25,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 07:39:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 200 transitions. [2020-11-28 07:39:25,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-11-28 07:39:25,259 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:25,260 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:39:25,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 07:39:25,261 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:39:25,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:25,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1673919105, now seen corresponding path program 1 times [2020-11-28 07:39:25,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:25,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967456791] [2020-11-28 07:39:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:25,337 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:25,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:39:25,399 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:39:25,446 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:39:25,447 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:39:25,448 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-28 07:39:25,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:25 BoogieIcfgContainer [2020-11-28 07:39:25,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:25,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:25,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:25,547 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:25,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:23" (3/4) ... [2020-11-28 07:39:25,550 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:39:25,550 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:25,553 INFO L168 Benchmark]: Toolchain (without parser) took 3949.57 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 63.2 MB in the beginning and 42.4 MB in the end (delta: 20.8 MB). Peak memory consumption was 46.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:25,553 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 98.6 MB. Free memory is still 79.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:25,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.71 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 71.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:25,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.95 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 68.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:25,558 INFO L168 Benchmark]: Boogie Preprocessor took 38.40 ms. Allocated memory is still 98.6 MB. Free memory was 68.7 MB in the beginning and 66.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:25,563 INFO L168 Benchmark]: RCFGBuilder took 1606.02 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 66.6 MB in the beginning and 40.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:25,564 INFO L168 Benchmark]: TraceAbstraction took 1839.51 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 43.5 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:25,564 INFO L168 Benchmark]: Witness Printer took 3.98 ms. Allocated memory is still 123.7 MB. Free memory was 43.5 MB in the beginning and 42.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:25,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 98.6 MB. Free memory is still 79.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 388.71 ms. Allocated memory is still 98.6 MB. Free memory was 63.1 MB in the beginning and 71.4 MB in the end (delta: -8.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.95 ms. Allocated memory is still 98.6 MB. Free memory was 71.4 MB in the beginning and 68.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.40 ms. Allocated memory is still 98.6 MB. Free memory was 68.7 MB in the beginning and 66.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1606.02 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 66.6 MB in the beginning and 40.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1839.51 ms. Allocated memory is still 123.7 MB. Free memory was 99.4 MB in the beginning and 43.5 MB in the end (delta: 55.9 MB). Peak memory consumption was 55.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.98 ms. Allocated memory is still 123.7 MB. Free memory was 43.5 MB in the beginning and 42.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 309]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseAnd at line 221. Possible FailurePath: [L631] int __retres1 ; [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect ; [L29] int s__ctx__stats__sess_hit = __VERIFIER_nondet_int(); [L30] int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_int(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [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_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] int tmp___1 ; [L54] int tmp___2 ; [L55] int tmp___3 ; [L56] int tmp___4 ; [L57] int tmp___5 ; [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int ag_Z ; [L66] unsigned int ag_V ; [L67] unsigned int ag_W ; [L68] int __retres62 ; [L71] ag_V = 2U [L72] ag_W = 5U [L73] s__state = 12292 [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] cb = 0 [L77] ret = -1 [L78] skip = 0 [L79] tmp___0 = 0 [L80] COND TRUE s__info_callback != 0 [L81] cb = s__info_callback [L89] s__in_handshake = s__in_handshake + 1 [L90] tmp___1 = __VERIFIER_nondet_int() [L91] COND FALSE !(tmp___1 & 12288) [L102] COND TRUE 1 [L104] state = s__state [L105] COND TRUE s__state == 12292 [L208] s__new_session = 1 [L209] s__state = 4096 [L210] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L215] s__server = 0 [L216] COND TRUE cb != 0 [L221] COND FALSE !((s__version & 65280) != 768) [L227] s__type = 4096 [L228] COND FALSE !(s__init_buf___0 == 0) [L247] tmp___4 = __VERIFIER_nondet_int() [L248] COND FALSE !(! tmp___4) [L254] tmp___5 = __VERIFIER_nondet_int() [L255] COND FALSE !(! tmp___5) [L261] s__state = 4368 [L262] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L263] s__init_num = 0 [L580] COND FALSE !(! s__s3__tmp__reuse_message) [L609] skip = 0 [L102] COND TRUE 1 [L104] state = s__state [L105] COND FALSE !(s__state == 12292) [L108] COND FALSE !(s__state == 16384) [L111] COND FALSE !(s__state == 4096) [L114] COND FALSE !(s__state == 20480) [L117] COND FALSE !(s__state == 4099) [L120] COND TRUE s__state == 4368 [L267] s__shutdown = 0 [L268] ret = __VERIFIER_nondet_int() [L269] COND TRUE blastFlag == 0 [L270] blastFlag = 1 [L274] COND FALSE !(ret <= 0) [L279] s__state = 4384 [L280] s__init_num = 0 [L281] COND TRUE s__bbio != s__wbio [L580] COND FALSE !(! s__s3__tmp__reuse_message) [L609] skip = 0 [L102] COND TRUE 1 [L104] state = s__state [L105] COND FALSE !(s__state == 12292) [L108] COND FALSE !(s__state == 16384) [L111] COND FALSE !(s__state == 4096) [L114] COND FALSE !(s__state == 20480) [L117] COND FALSE !(s__state == 4099) [L120] COND FALSE !(s__state == 4368) [L123] COND FALSE !(s__state == 4369) [L126] COND TRUE s__state == 4384 [L289] ret = __VERIFIER_nondet_int() [L290] COND TRUE blastFlag == 1 [L291] blastFlag = 2 [L295] COND FALSE !(ret <= 0) [L300] COND FALSE !(\read(s__hit)) [L303] s__state = 4400 [L305] s__init_num = 0 [L580] COND FALSE !(! s__s3__tmp__reuse_message) [L609] skip = 0 [L102] COND TRUE 1 [L104] state = s__state [L105] COND FALSE !(s__state == 12292) [L108] COND FALSE !(s__state == 16384) [L111] COND FALSE !(s__state == 4096) [L114] COND FALSE !(s__state == 20480) [L117] COND FALSE !(s__state == 4099) [L120] COND FALSE !(s__state == 4368) [L123] COND FALSE !(s__state == 4369) [L126] COND FALSE !(s__state == 4384) [L129] COND FALSE !(s__state == 4385) [L132] COND TRUE s__state == 4400 [L309] s__s3__tmp__new_cipher__algorithms - 256 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 675 SDtfs, 153 SDslu, 268 SDs, 0 SdLazy, 274 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 9235 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 50/50 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...