./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8e886c6e3abc79c194ec44ea4cf6d83eeae3b7c8 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:12:05,200 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:12:05,201 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:12:05,214 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:12:05,214 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:12:05,215 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:12:05,216 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:12:05,219 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:12:05,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:12:05,221 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:12:05,223 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:12:05,223 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:12:05,224 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:12:05,225 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:12:05,227 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:12:05,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:12:05,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:12:05,231 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:12:05,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:12:05,235 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:12:05,236 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:12:05,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:12:05,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:12:05,241 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:12:05,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:12:05,243 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:12:05,244 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:12:05,245 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:12:05,246 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:12:05,247 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:12:05,247 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:12:05,248 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:12:05,248 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:12:05,249 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:12:05,250 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:12:05,251 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:12:05,251 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:12:05,267 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:12:05,267 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:12:05,268 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:12:05,268 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:12:05,269 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:12:05,269 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:12:05,269 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:12:05,269 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:12:05,270 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:12:05,271 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:12:05,271 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:12:05,271 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:12:05,271 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:12:05,271 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:12:05,273 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:12:05,273 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:12:05,273 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:12:05,273 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:12:05,275 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:12:05,275 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:12:05,275 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:12:05,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:12:05,276 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:12:05,276 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:12:05,276 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:12:05,276 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:12:05,276 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:12:05,277 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:12:05,277 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:12:05,277 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e886c6e3abc79c194ec44ea4cf6d83eeae3b7c8 [2018-11-28 23:12:05,336 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:12:05,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:12:05,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:12:05,365 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:12:05,365 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:12:05,367 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i [2018-11-28 23:12:05,436 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d212f8dfb/372c1d0bebd64045858bb31eb7ca6625/FLAGf3da4478e [2018-11-28 23:12:06,114 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:12:06,115 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/busybox-1.22.0/hostid_true-no-overflow_true-valid-memsafety.i [2018-11-28 23:12:06,138 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d212f8dfb/372c1d0bebd64045858bb31eb7ca6625/FLAGf3da4478e [2018-11-28 23:12:06,297 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d212f8dfb/372c1d0bebd64045858bb31eb7ca6625 [2018-11-28 23:12:06,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:12:06,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:12:06,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:12:06,303 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:12:06,306 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:12:06,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:12:06" (1/1) ... [2018-11-28 23:12:06,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2638445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:06, skipping insertion in model container [2018-11-28 23:12:06,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:12:06" (1/1) ... [2018-11-28 23:12:06,319 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:12:06,393 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:12:07,485 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:12:07,545 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:12:07,796 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:12:08,326 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:12:08,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08 WrapperNode [2018-11-28 23:12:08,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:12:08,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:12:08,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:12:08,328 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:12:08,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:12:08,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:12:08,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:12:08,389 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:12:08,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... [2018-11-28 23:12:08,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:12:08,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:12:08,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:12:08,477 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:12:08,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:12:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:12:08,557 INFO L130 BoogieDeclarations]: Found specification of procedure gethostid [2018-11-28 23:12:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:12:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2018-11-28 23:12:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:12:08,558 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:12:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-28 23:12:08,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:12:08,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:12:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure __main [2018-11-28 23:12:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __main [2018-11-28 23:12:08,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:12:08,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:12:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-28 23:12:08,564 INFO L130 BoogieDeclarations]: Found specification of procedure fflush_all [2018-11-28 23:12:08,564 INFO L138 BoogieDeclarations]: Found implementation of procedure fflush_all [2018-11-28 23:12:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2018-11-28 23:12:08,565 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2018-11-28 23:12:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 23:12:08,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:12:09,651 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:12:09,651 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-11-28 23:12:09,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:09 BoogieIcfgContainer [2018-11-28 23:12:09,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:12:09,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:12:09,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:12:09,657 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:12:09,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:12:06" (1/3) ... [2018-11-28 23:12:09,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66954fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:12:09, skipping insertion in model container [2018-11-28 23:12:09,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:08" (2/3) ... [2018-11-28 23:12:09,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66954fa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:12:09, skipping insertion in model container [2018-11-28 23:12:09,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:09" (3/3) ... [2018-11-28 23:12:09,660 INFO L112 eAbstractionObserver]: Analyzing ICFG hostid_true-no-overflow_true-valid-memsafety.i [2018-11-28 23:12:09,671 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:12:09,681 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2018-11-28 23:12:09,700 INFO L257 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2018-11-28 23:12:09,732 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:12:09,733 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:12:09,733 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:12:09,733 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:12:09,733 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:12:09,733 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:12:09,733 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:12:09,734 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:12:09,734 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:12:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2018-11-28 23:12:09,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 23:12:09,760 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:09,761 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:12:09,764 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:09,769 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:09,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1816675413, now seen corresponding path program 1 times [2018-11-28 23:12:09,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:09,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:09,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:09,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:09,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:10,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:12:10,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:10,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:10,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:10,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:10,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:10,243 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 3 states. [2018-11-28 23:12:10,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:10,303 INFO L93 Difference]: Finished difference Result 116 states and 132 transitions. [2018-11-28 23:12:10,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:10,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-28 23:12:10,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:10,316 INFO L225 Difference]: With dead ends: 116 [2018-11-28 23:12:10,317 INFO L226 Difference]: Without dead ends: 58 [2018-11-28 23:12:10,320 INFO L631 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 [2018-11-28 23:12:10,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-11-28 23:12:10,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-11-28 23:12:10,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-28 23:12:10,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-11-28 23:12:10,371 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 8 [2018-11-28 23:12:10,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:10,372 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-11-28 23:12:10,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-11-28 23:12:10,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 23:12:10,373 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:10,373 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:12:10,374 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:10,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:10,375 INFO L82 PathProgramCache]: Analyzing trace with hash 482363001, now seen corresponding path program 1 times [2018-11-28 23:12:10,375 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:10,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:10,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:10,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:10,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:12:10,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:10,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:10,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:10,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:10,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:10,574 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 3 states. [2018-11-28 23:12:10,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:10,707 INFO L93 Difference]: Finished difference Result 61 states and 65 transitions. [2018-11-28 23:12:10,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:10,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 23:12:10,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:10,713 INFO L225 Difference]: With dead ends: 61 [2018-11-28 23:12:10,713 INFO L226 Difference]: Without dead ends: 60 [2018-11-28 23:12:10,714 INFO L631 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 [2018-11-28 23:12:10,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-11-28 23:12:10,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-11-28 23:12:10,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-28 23:12:10,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2018-11-28 23:12:10,735 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 9 [2018-11-28 23:12:10,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:10,735 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2018-11-28 23:12:10,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:10,735 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2018-11-28 23:12:10,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 23:12:10,738 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:10,738 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:12:10,739 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:10,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:10,739 INFO L82 PathProgramCache]: Analyzing trace with hash -884370544, now seen corresponding path program 1 times [2018-11-28 23:12:10,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:10,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:10,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:10,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:10,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:10,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:10,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:10,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:10,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:10,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:10,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:10,899 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 3 states. [2018-11-28 23:12:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:11,005 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-11-28 23:12:11,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:11,006 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 23:12:11,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:11,009 INFO L225 Difference]: With dead ends: 60 [2018-11-28 23:12:11,009 INFO L226 Difference]: Without dead ends: 56 [2018-11-28 23:12:11,010 INFO L631 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 [2018-11-28 23:12:11,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-28 23:12:11,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-28 23:12:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-28 23:12:11,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-11-28 23:12:11,018 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 12 [2018-11-28 23:12:11,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:11,019 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-11-28 23:12:11,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:11,019 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-11-28 23:12:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-28 23:12:11,020 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:11,020 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:12:11,022 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:11,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:11,022 INFO L82 PathProgramCache]: Analyzing trace with hash -884368814, now seen corresponding path program 1 times [2018-11-28 23:12:11,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:11,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:11,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:11,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:11,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:12:11,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:11,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:11,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:11,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:11,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:11,137 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 3 states. [2018-11-28 23:12:11,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:11,212 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-11-28 23:12:11,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:11,213 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-11-28 23:12:11,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:11,214 INFO L225 Difference]: With dead ends: 56 [2018-11-28 23:12:11,214 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 23:12:11,216 INFO L631 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 [2018-11-28 23:12:11,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 23:12:11,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2018-11-28 23:12:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-28 23:12:11,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 57 transitions. [2018-11-28 23:12:11,224 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 57 transitions. Word has length 12 [2018-11-28 23:12:11,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:11,224 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 57 transitions. [2018-11-28 23:12:11,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:11,224 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 57 transitions. [2018-11-28 23:12:11,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 23:12:11,226 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:11,226 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:12:11,227 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:11,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:11,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1645683034, now seen corresponding path program 1 times [2018-11-28 23:12:11,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:11,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:11,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:11,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:11,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:11,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:11,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:11,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:11,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:11,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:11,342 INFO L87 Difference]: Start difference. First operand 53 states and 57 transitions. Second operand 3 states. [2018-11-28 23:12:11,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:11,420 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-11-28 23:12:11,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:11,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-28 23:12:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:11,424 INFO L225 Difference]: With dead ends: 53 [2018-11-28 23:12:11,424 INFO L226 Difference]: Without dead ends: 51 [2018-11-28 23:12:11,425 INFO L631 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 [2018-11-28 23:12:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-11-28 23:12:11,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-11-28 23:12:11,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-28 23:12:11,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-11-28 23:12:11,432 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 13 [2018-11-28 23:12:11,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:11,433 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-11-28 23:12:11,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:11,433 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-11-28 23:12:11,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 23:12:11,433 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:11,434 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:12:11,434 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:11,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:11,435 INFO L82 PathProgramCache]: Analyzing trace with hash -953428952, now seen corresponding path program 1 times [2018-11-28 23:12:11,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:11,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:11,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:11,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:11,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:11,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:11,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:11,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:11,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:11,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:11,560 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 3 states. [2018-11-28 23:12:11,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:11,678 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-11-28 23:12:11,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:11,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-28 23:12:11,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:11,681 INFO L225 Difference]: With dead ends: 51 [2018-11-28 23:12:11,681 INFO L226 Difference]: Without dead ends: 49 [2018-11-28 23:12:11,682 INFO L631 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 [2018-11-28 23:12:11,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-11-28 23:12:11,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2018-11-28 23:12:11,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-11-28 23:12:11,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 53 transitions. [2018-11-28 23:12:11,696 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 53 transitions. Word has length 15 [2018-11-28 23:12:11,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:11,697 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 53 transitions. [2018-11-28 23:12:11,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:11,697 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2018-11-28 23:12:11,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 23:12:11,702 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:11,702 INFO L402 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] [2018-11-28 23:12:11,703 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:11,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:11,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1781795114, now seen corresponding path program 1 times [2018-11-28 23:12:11,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:11,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:11,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:11,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:11,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:11,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:11,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:12:11,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:11,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:11,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:11,861 INFO L87 Difference]: Start difference. First operand 49 states and 53 transitions. Second operand 3 states. [2018-11-28 23:12:12,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:12,069 INFO L93 Difference]: Finished difference Result 82 states and 92 transitions. [2018-11-28 23:12:12,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:12,070 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-28 23:12:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:12,071 INFO L225 Difference]: With dead ends: 82 [2018-11-28 23:12:12,072 INFO L226 Difference]: Without dead ends: 52 [2018-11-28 23:12:12,072 INFO L631 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 [2018-11-28 23:12:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-28 23:12:12,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-11-28 23:12:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 23:12:12,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-11-28 23:12:12,089 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 22 [2018-11-28 23:12:12,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:12,090 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-11-28 23:12:12,090 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:12,090 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-11-28 23:12:12,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 23:12:12,095 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:12,095 INFO L402 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] [2018-11-28 23:12:12,096 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:12,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:12,098 INFO L82 PathProgramCache]: Analyzing trace with hash -40845406, now seen corresponding path program 1 times [2018-11-28 23:12:12,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:12,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:12,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:12,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:12,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:12,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:12:12,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:12,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:12:12,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:12:12,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:12:12,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:12:12,375 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 4 states. [2018-11-28 23:12:12,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:12,891 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2018-11-28 23:12:12,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:12:12,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-28 23:12:12,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:12,895 INFO L225 Difference]: With dead ends: 60 [2018-11-28 23:12:12,895 INFO L226 Difference]: Without dead ends: 59 [2018-11-28 23:12:12,896 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:12:12,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-28 23:12:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 51. [2018-11-28 23:12:12,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-28 23:12:12,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-11-28 23:12:12,925 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 25 [2018-11-28 23:12:12,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:12,925 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-11-28 23:12:12,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:12:12,925 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-11-28 23:12:12,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 23:12:12,926 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:12,926 INFO L402 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] [2018-11-28 23:12:12,927 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:12,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:12,927 INFO L82 PathProgramCache]: Analyzing trace with hash -40845351, now seen corresponding path program 1 times [2018-11-28 23:12:12,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:12,930 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:12,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:12,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:12,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:13,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:12:13,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:13,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:13,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:13,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:13,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:13,053 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 3 states. [2018-11-28 23:12:13,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:13,146 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-11-28 23:12:13,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:13,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2018-11-28 23:12:13,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:13,151 INFO L225 Difference]: With dead ends: 51 [2018-11-28 23:12:13,152 INFO L226 Difference]: Without dead ends: 50 [2018-11-28 23:12:13,152 INFO L631 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 [2018-11-28 23:12:13,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-11-28 23:12:13,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-11-28 23:12:13,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-28 23:12:13,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2018-11-28 23:12:13,163 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 25 [2018-11-28 23:12:13,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:13,164 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2018-11-28 23:12:13,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:13,164 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2018-11-28 23:12:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 23:12:13,165 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:13,165 INFO L402 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] [2018-11-28 23:12:13,165 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:13,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:13,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1266207492, now seen corresponding path program 1 times [2018-11-28 23:12:13,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:13,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:13,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:13,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:13,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:13,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:12:13,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:13,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:13,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:13,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:13,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:13,297 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 3 states. [2018-11-28 23:12:13,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:13,449 INFO L93 Difference]: Finished difference Result 68 states and 75 transitions. [2018-11-28 23:12:13,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:13,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-28 23:12:13,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:13,452 INFO L225 Difference]: With dead ends: 68 [2018-11-28 23:12:13,452 INFO L226 Difference]: Without dead ends: 67 [2018-11-28 23:12:13,453 INFO L631 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 [2018-11-28 23:12:13,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-11-28 23:12:13,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 59. [2018-11-28 23:12:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-28 23:12:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 66 transitions. [2018-11-28 23:12:13,460 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 66 transitions. Word has length 26 [2018-11-28 23:12:13,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:13,461 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 66 transitions. [2018-11-28 23:12:13,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:13,461 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 66 transitions. [2018-11-28 23:12:13,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-28 23:12:13,462 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:13,462 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:12:13,462 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:13,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:13,463 INFO L82 PathProgramCache]: Analyzing trace with hash -1266205794, now seen corresponding path program 1 times [2018-11-28 23:12:13,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:13,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:13,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:13,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:13,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:13,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:13,577 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:13,577 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:13,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:13,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:13,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:13,578 INFO L87 Difference]: Start difference. First operand 59 states and 66 transitions. Second operand 3 states. [2018-11-28 23:12:13,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:13,610 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2018-11-28 23:12:13,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:13,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-28 23:12:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:13,617 INFO L225 Difference]: With dead ends: 66 [2018-11-28 23:12:13,617 INFO L226 Difference]: Without dead ends: 65 [2018-11-28 23:12:13,618 INFO L631 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 [2018-11-28 23:12:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-11-28 23:12:13,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 54. [2018-11-28 23:12:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-11-28 23:12:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 60 transitions. [2018-11-28 23:12:13,632 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 60 transitions. Word has length 26 [2018-11-28 23:12:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:13,632 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 60 transitions. [2018-11-28 23:12:13,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:13,632 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 60 transitions. [2018-11-28 23:12:13,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 23:12:13,633 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:13,633 INFO L402 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] [2018-11-28 23:12:13,639 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:13,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:13,639 INFO L82 PathProgramCache]: Analyzing trace with hash 156774894, now seen corresponding path program 1 times [2018-11-28 23:12:13,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:13,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:13,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:13,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:13,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:13,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:13,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:12:13,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:12:13,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:12:13,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:12:13,856 INFO L87 Difference]: Start difference. First operand 54 states and 60 transitions. Second operand 4 states. [2018-11-28 23:12:14,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:14,228 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2018-11-28 23:12:14,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:12:14,229 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2018-11-28 23:12:14,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:14,231 INFO L225 Difference]: With dead ends: 55 [2018-11-28 23:12:14,231 INFO L226 Difference]: Without dead ends: 54 [2018-11-28 23:12:14,231 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:12:14,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-11-28 23:12:14,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2018-11-28 23:12:14,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-11-28 23:12:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 59 transitions. [2018-11-28 23:12:14,246 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 59 transitions. Word has length 34 [2018-11-28 23:12:14,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:14,246 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 59 transitions. [2018-11-28 23:12:14,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:12:14,246 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2018-11-28 23:12:14,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-28 23:12:14,247 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:14,247 INFO L402 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] [2018-11-28 23:12:14,255 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:14,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:14,255 INFO L82 PathProgramCache]: Analyzing trace with hash 565054530, now seen corresponding path program 1 times [2018-11-28 23:12:14,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:14,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:14,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:14,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:14,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:14,380 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:14,380 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:14,380 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:14,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:14,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:14,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:14,381 INFO L87 Difference]: Start difference. First operand 53 states and 59 transitions. Second operand 3 states. [2018-11-28 23:12:14,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:14,478 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2018-11-28 23:12:14,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:14,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2018-11-28 23:12:14,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:14,479 INFO L225 Difference]: With dead ends: 57 [2018-11-28 23:12:14,479 INFO L226 Difference]: Without dead ends: 56 [2018-11-28 23:12:14,480 INFO L631 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 [2018-11-28 23:12:14,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-28 23:12:14,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-28 23:12:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-28 23:12:14,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 62 transitions. [2018-11-28 23:12:14,487 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 62 transitions. Word has length 35 [2018-11-28 23:12:14,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:14,487 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 62 transitions. [2018-11-28 23:12:14,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 62 transitions. [2018-11-28 23:12:14,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 23:12:14,488 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:14,489 INFO L402 BasicCegarLoop]: trace histogram [2, 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] [2018-11-28 23:12:14,489 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:14,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:14,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1336905004, now seen corresponding path program 1 times [2018-11-28 23:12:14,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:14,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:14,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:14,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:14,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:14,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:14,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-28 23:12:14,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:14,614 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:14,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:14,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:14,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:14,615 INFO L87 Difference]: Start difference. First operand 56 states and 62 transitions. Second operand 3 states. [2018-11-28 23:12:14,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:14,702 INFO L93 Difference]: Finished difference Result 56 states and 62 transitions. [2018-11-28 23:12:14,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:14,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2018-11-28 23:12:14,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:14,703 INFO L225 Difference]: With dead ends: 56 [2018-11-28 23:12:14,703 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 23:12:14,704 INFO L631 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 [2018-11-28 23:12:14,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 23:12:14,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2018-11-28 23:12:14,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-28 23:12:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-11-28 23:12:14,709 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 33 [2018-11-28 23:12:14,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:14,710 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-11-28 23:12:14,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:14,710 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-11-28 23:12:14,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-11-28 23:12:14,712 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:12:14,712 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1] [2018-11-28 23:12:14,713 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:12:14,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:12:14,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1562776555, now seen corresponding path program 1 times [2018-11-28 23:12:14,713 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:12:14,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:12:14,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:14,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:12:14,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:12:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:12:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 23:12:14,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:12:14,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:12:14,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:12:14,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:12:14,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:12:14,821 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 3 states. [2018-11-28 23:12:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:12:14,882 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-11-28 23:12:14,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:12:14,883 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 38 [2018-11-28 23:12:14,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:12:14,883 INFO L225 Difference]: With dead ends: 48 [2018-11-28 23:12:14,883 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 23:12:14,885 INFO L631 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 [2018-11-28 23:12:14,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 23:12:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 23:12:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 23:12:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:12:14,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2018-11-28 23:12:14,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:12:14,888 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:12:14,888 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:12:14,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:12:14,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 23:12:14,895 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 23:12:14,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:12:14,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:12:14,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:12:14,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:12:14,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 23:12:15,067 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 14 [2018-11-28 23:12:15,176 WARN L180 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 18 [2018-11-28 23:12:15,435 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2018-11-28 23:12:15,439 INFO L448 ceAbstractionStarter]: For program point fflush_allFINAL(lines 1757 1762) no Hoare annotation was computed. [2018-11-28 23:12:15,439 INFO L448 ceAbstractionStarter]: For program point fflush_allEXIT(lines 1757 1762) no Hoare annotation was computed. [2018-11-28 23:12:15,439 INFO L451 ceAbstractionStarter]: At program point fflush_allENTRY(lines 1757 1762) the Hoare annotation is: true [2018-11-28 23:12:15,440 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:12:15,440 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:12:15,440 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:12:15,440 INFO L448 ceAbstractionStarter]: For program point bb_show_usageEXIT(lines 1753 1756) no Hoare annotation was computed. [2018-11-28 23:12:15,440 INFO L451 ceAbstractionStarter]: At program point bb_show_usageFINAL(lines 1753 1756) the Hoare annotation is: true [2018-11-28 23:12:15,440 INFO L451 ceAbstractionStarter]: At program point __mainENTRY(lines 1766 1776) the Hoare annotation is: true [2018-11-28 23:12:15,440 INFO L451 ceAbstractionStarter]: At program point L1774(line 1774) the Hoare annotation is: true [2018-11-28 23:12:15,440 INFO L448 ceAbstractionStarter]: For program point L1774-1(line 1774) no Hoare annotation was computed. [2018-11-28 23:12:15,440 INFO L451 ceAbstractionStarter]: At program point L1769(line 1769) the Hoare annotation is: true [2018-11-28 23:12:15,440 INFO L448 ceAbstractionStarter]: For program point __mainFINAL(lines 1766 1776) no Hoare annotation was computed. [2018-11-28 23:12:15,440 INFO L448 ceAbstractionStarter]: For program point L1768(lines 1768 1769) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point L1768-1(lines 1768 1769) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point __mainEXIT(lines 1766 1776) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 23:12:15,441 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 1857 1886) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point L1869(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,441 INFO L448 ceAbstractionStarter]: For program point L1869-1(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,442 INFO L448 ceAbstractionStarter]: For program point L1869-2(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,442 INFO L448 ceAbstractionStarter]: For program point L1869-3(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,442 INFO L448 ceAbstractionStarter]: For program point L1861-2(lines 1861 1862) no Hoare annotation was computed. [2018-11-28 23:12:15,442 INFO L448 ceAbstractionStarter]: For program point mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,442 INFO L448 ceAbstractionStarter]: For program point L1861-3(line 1861) no Hoare annotation was computed. [2018-11-28 23:12:15,442 INFO L444 ceAbstractionStarter]: At program point L1861-4(lines 1861 1862) the Hoare annotation is: (<= 0 (+ main_~i~3 2147483648)) [2018-11-28 23:12:15,442 INFO L448 ceAbstractionStarter]: For program point L1861-5(lines 1861 1862) no Hoare annotation was computed. [2018-11-28 23:12:15,442 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1861) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point L1879(line 1879) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1880) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1871) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point L1871-2(lines 1871 1878) no Hoare annotation was computed. [2018-11-28 23:12:15,443 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 1857 1886) no Hoare annotation was computed. [2018-11-28 23:12:15,444 INFO L448 ceAbstractionStarter]: For program point L1871-3(line 1871) no Hoare annotation was computed. [2018-11-28 23:12:15,444 INFO L444 ceAbstractionStarter]: At program point L1871-4(lines 1871 1878) the Hoare annotation is: (let ((.cse0 (<= 0 (+ main_~i~3 2147483648))) (.cse1 (<= main_~argc~0 10000)) (.cse2 (<= 1 main_~argc~0))) (or (and .cse0 .cse1 .cse2 (<= 0 (+ main_~j~0 2147483648)) (<= 0 (+ main_~i~4 2147483648))) (and .cse0 .cse1 .cse2 (= main_~i~4 0)))) [2018-11-28 23:12:15,444 INFO L444 ceAbstractionStarter]: At program point L1871-5(lines 1871 1878) the Hoare annotation is: (and (<= 0 (+ main_~i~3 2147483648)) (<= main_~argc~0 10000) (<= 1 main_~argc~0) (<= 0 (+ main_~i~4 2147483648))) [2018-11-28 23:12:15,444 INFO L448 ceAbstractionStarter]: For program point mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1876) no Hoare annotation was computed. [2018-11-28 23:12:15,444 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 1857 1886) the Hoare annotation is: true [2018-11-28 23:12:15,444 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1861) no Hoare annotation was computed. [2018-11-28 23:12:15,444 INFO L448 ceAbstractionStarter]: For program point mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L448 ceAbstractionStarter]: For program point mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1869) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L448 ceAbstractionStarter]: For program point L1880-2(lines 1880 1881) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L448 ceAbstractionStarter]: For program point L1880-3(line 1880) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L444 ceAbstractionStarter]: At program point L1880-4(lines 1880 1881) the Hoare annotation is: (and (<= 0 (+ main_~i~3 2147483648)) (<= main_~argc~0 10000) (<= 1 main_~argc~0) (<= 0 (+ main_~i~5 2147483648)) (<= 0 (+ main_~i~4 2147483648))) [2018-11-28 23:12:15,445 INFO L448 ceAbstractionStarter]: For program point L1880-5(lines 1880 1881) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L448 ceAbstractionStarter]: For program point L1876-2(lines 1876 1877) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L448 ceAbstractionStarter]: For program point L1876-3(line 1876) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L448 ceAbstractionStarter]: For program point mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1871) no Hoare annotation was computed. [2018-11-28 23:12:15,445 INFO L444 ceAbstractionStarter]: At program point L1876-4(lines 1876 1877) the Hoare annotation is: (and (<= 0 (+ main_~i~3 2147483648)) (<= main_~argc~0 10000) (<= 1 main_~argc~0) (<= 0 (+ main_~j~0 2147483648)) (<= main_~i~4 268435453) (<= 0 (+ main_~i~4 2147483648))) [2018-11-28 23:12:15,446 INFO L448 ceAbstractionStarter]: For program point mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1880) no Hoare annotation was computed. [2018-11-28 23:12:15,446 INFO L448 ceAbstractionStarter]: For program point L1868(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,446 INFO L448 ceAbstractionStarter]: For program point L1868-1(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,446 INFO L448 ceAbstractionStarter]: For program point L1868-2(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,446 INFO L448 ceAbstractionStarter]: For program point L1868-3(line 1868) no Hoare annotation was computed. [2018-11-28 23:12:15,446 INFO L448 ceAbstractionStarter]: For program point mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1876) no Hoare annotation was computed. [2018-11-28 23:12:15,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:12:15 BoogieIcfgContainer [2018-11-28 23:12:15,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:12:15,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:12:15,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:12:15,475 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:12:15,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:09" (3/4) ... [2018-11-28 23:12:15,480 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 23:12:15,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 23:12:15,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fflush_all [2018-11-28 23:12:15,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __main [2018-11-28 23:12:15,487 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure bb_show_usage [2018-11-28 23:12:15,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 23:12:15,494 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-11-28 23:12:15,495 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 23:12:15,495 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 23:12:15,495 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 23:12:15,595 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:12:15,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:12:15,599 INFO L168 Benchmark]: Toolchain (without parser) took 9298.14 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.1 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -58.6 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:12:15,600 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:12:15,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2024.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.5 MB in the beginning and 995.5 MB in the end (delta: -51.0 MB). Peak memory consumption was 116.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:12:15,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.05 ms. Allocated memory is still 1.2 GB. Free memory was 995.5 MB in the beginning and 988.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:12:15,602 INFO L168 Benchmark]: Boogie Preprocessor took 87.31 ms. Allocated memory is still 1.2 GB. Free memory is still 988.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:12:15,602 INFO L168 Benchmark]: RCFGBuilder took 1175.39 ms. Allocated memory is still 1.2 GB. Free memory was 988.8 MB in the beginning and 943.9 MB in the end (delta: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:12:15,603 INFO L168 Benchmark]: TraceAbstraction took 5819.31 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 77.1 MB). Free memory was 943.9 MB in the beginning and 1.0 GB in the end (delta: -59.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:12:15,603 INFO L168 Benchmark]: Witness Printer took 123.10 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-28 23:12:15,607 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 2024.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 944.5 MB in the beginning and 995.5 MB in the end (delta: -51.0 MB). Peak memory consumption was 116.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.05 ms. Allocated memory is still 1.2 GB. Free memory was 995.5 MB in the beginning and 988.8 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.31 ms. Allocated memory is still 1.2 GB. Free memory is still 988.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1175.39 ms. Allocated memory is still 1.2 GB. Free memory was 988.8 MB in the beginning and 943.9 MB in the end (delta: 44.8 MB). Peak memory consumption was 44.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5819.31 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 77.1 MB). Free memory was 943.9 MB in the beginning and 1.0 GB in the end (delta: -59.2 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * Witness Printer took 123.10 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1868]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1871]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1871]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1861]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1880]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1869]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1876]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1880]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1876]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 1876]: Loop Invariant Derived loop invariant: ((((0 <= i + 2147483648 && argc <= 10000) && 1 <= argc) && 0 <= j + 2147483648) && i <= 268435453) && 0 <= i + 2147483648 - InvariantResult [Line: 1880]: Loop Invariant Derived loop invariant: (((0 <= i + 2147483648 && argc <= 10000) && 1 <= argc) && 0 <= i + 2147483648) && 0 <= i + 2147483648 - InvariantResult [Line: 1861]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 1871]: Loop Invariant Derived loop invariant: ((((0 <= i + 2147483648 && argc <= 10000) && 1 <= argc) && 0 <= j + 2147483648) && 0 <= i + 2147483648) || (((0 <= i + 2147483648 && argc <= 10000) && 1 <= argc) && i == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 63 locations, 16 error locations. SAFE Result, 5.7s OverallTime, 15 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 693 SDtfs, 194 SDslu, 610 SDs, 0 SdLazy, 152 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 37 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 24 PreInvPairs, 31 NumberOfFragments, 117 HoareAnnotationTreeSize, 24 FomulaSimplifications, 1112 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 69 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 333 NumberOfCodeBlocks, 333 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 12270 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 PerfectInterpolantSequences, 36/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...