./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0ed9222f 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/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c -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 3428809e66c8ffa9373e37ec3d02a46642c7f8bc ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 01:18:53,230 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 01:18:53,233 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 01:18:53,246 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 01:18:53,247 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 01:18:53,248 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 01:18:53,252 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 01:18:53,254 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 01:18:53,256 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 01:18:53,257 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 01:18:53,265 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 01:18:53,266 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 01:18:53,267 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 01:18:53,272 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 01:18:53,273 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 01:18:53,274 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 01:18:53,274 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 01:18:53,278 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 01:18:53,281 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 01:18:53,285 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 01:18:53,286 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 01:18:53,288 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 01:18:53,293 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 01:18:53,293 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 01:18:53,293 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 01:18:53,294 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 01:18:53,296 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 01:18:53,297 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 01:18:53,297 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 01:18:53,298 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 01:18:53,299 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 01:18:53,299 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 01:18:53,299 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 01:18:53,299 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 01:18:53,300 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 01:18:53,301 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 01:18:53,301 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-01-14 01:18:53,322 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 01:18:53,323 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 01:18:53,324 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 01:18:53,324 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 01:18:53,324 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 01:18:53,324 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 01:18:53,325 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 01:18:53,325 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 01:18:53,326 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 01:18:53,326 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 01:18:53,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 01:18:53,326 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 01:18:53,326 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2019-01-14 01:18:53,326 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 01:18:53,327 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 01:18:53,328 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 01:18:53,328 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 01:18:53,328 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 01:18:53,328 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 01:18:53,328 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 01:18:53,329 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 01:18:53,329 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 01:18:53,329 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 01:18:53,329 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 01:18:53,329 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 01:18:53,329 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 01:18:53,330 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 01:18:53,331 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 -> 3428809e66c8ffa9373e37ec3d02a46642c7f8bc [2019-01-14 01:18:53,366 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 01:18:53,379 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 01:18:53,382 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 01:18:53,384 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 01:18:53,384 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 01:18:53,385 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2019-01-14 01:18:53,440 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86e2e158d/81638ab251854eb6ab1e385c60f924c0/FLAG291df1170 [2019-01-14 01:18:53,845 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 01:18:53,845 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2019-01-14 01:18:53,853 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86e2e158d/81638ab251854eb6ab1e385c60f924c0/FLAG291df1170 [2019-01-14 01:18:54,222 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86e2e158d/81638ab251854eb6ab1e385c60f924c0 [2019-01-14 01:18:54,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 01:18:54,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 01:18:54,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 01:18:54,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 01:18:54,231 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 01:18:54,232 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30207e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54, skipping insertion in model container [2019-01-14 01:18:54,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 01:18:54,258 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 01:18:54,476 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:18:54,482 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 01:18:54,510 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 01:18:54,537 INFO L195 MainTranslator]: Completed translation [2019-01-14 01:18:54,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54 WrapperNode [2019-01-14 01:18:54,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 01:18:54,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 01:18:54,539 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 01:18:54,540 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 01:18:54,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 01:18:54,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 01:18:54,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 01:18:54,587 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 01:18:54,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,597 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (1/1) ... [2019-01-14 01:18:54,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 01:18:54,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 01:18:54,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 01:18:54,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 01:18:54,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (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 [2019-01-14 01:18:54,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 01:18:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 01:18:54,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 01:18:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 01:18:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 01:18:54,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 01:18:55,097 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 01:18:55,098 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-14 01:18:55,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:18:55 BoogieIcfgContainer [2019-01-14 01:18:55,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 01:18:55,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 01:18:55,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 01:18:55,103 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 01:18:55,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 01:18:54" (1/3) ... [2019-01-14 01:18:55,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12545b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:18:55, skipping insertion in model container [2019-01-14 01:18:55,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 01:18:54" (2/3) ... [2019-01-14 01:18:55,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12545b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 01:18:55, skipping insertion in model container [2019-01-14 01:18:55,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:18:55" (3/3) ... [2019-01-14 01:18:55,106 INFO L112 eAbstractionObserver]: Analyzing ICFG HeizmannHoenickeLeikePodelski-ATVA2013-Fig7_false-no-overflow.c [2019-01-14 01:18:55,116 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 01:18:55,124 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2019-01-14 01:18:55,138 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-01-14 01:18:55,168 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 01:18:55,169 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 01:18:55,169 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 01:18:55,169 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 01:18:55,169 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 01:18:55,169 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 01:18:55,170 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 01:18:55,170 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 01:18:55,170 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 01:18:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-01-14 01:18:55,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 01:18:55,190 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:18:55,190 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 01:18:55,192 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:18:55,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:18:55,197 INFO L82 PathProgramCache]: Analyzing trace with hash 889574220, now seen corresponding path program 1 times [2019-01-14 01:18:55,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:18:55,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:18:55,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:55,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:55,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:18:55,389 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:18:55,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 01:18:55,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 01:18:55,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 01:18:55,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 01:18:55,404 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2019-01-14 01:18:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:18:55,510 INFO L93 Difference]: Finished difference Result 60 states and 71 transitions. [2019-01-14 01:18:55,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 01:18:55,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-01-14 01:18:55,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:18:55,521 INFO L225 Difference]: With dead ends: 60 [2019-01-14 01:18:55,521 INFO L226 Difference]: Without dead ends: 35 [2019-01-14 01:18:55,524 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 01:18:55,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-01-14 01:18:55,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 24. [2019-01-14 01:18:55,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-14 01:18:55,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2019-01-14 01:18:55,557 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 6 [2019-01-14 01:18:55,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:18:55,557 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2019-01-14 01:18:55,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 01:18:55,558 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2019-01-14 01:18:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 01:18:55,558 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:18:55,559 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:18:55,560 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:18:55,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:18:55,560 INFO L82 PathProgramCache]: Analyzing trace with hash 180741427, now seen corresponding path program 1 times [2019-01-14 01:18:55,560 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:18:55,560 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:18:55,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:55,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:55,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:55,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:18:55,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:18:55,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 01:18:55,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:18:55,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:18:55,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:18:55,636 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 3 states. [2019-01-14 01:18:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:18:55,721 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2019-01-14 01:18:55,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:18:55,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-01-14 01:18:55,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:18:55,726 INFO L225 Difference]: With dead ends: 35 [2019-01-14 01:18:55,726 INFO L226 Difference]: Without dead ends: 24 [2019-01-14 01:18:55,728 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 [2019-01-14 01:18:55,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-01-14 01:18:55,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-01-14 01:18:55,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-01-14 01:18:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-01-14 01:18:55,732 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2019-01-14 01:18:55,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:18:55,732 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-01-14 01:18:55,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:18:55,732 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-01-14 01:18:55,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 01:18:55,733 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:18:55,733 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2019-01-14 01:18:55,734 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:18:55,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:18:55,734 INFO L82 PathProgramCache]: Analyzing trace with hash -869586168, now seen corresponding path program 1 times [2019-01-14 01:18:55,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:18:55,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:18:55,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:55,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:55,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:55,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:55,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:18:55,924 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 01:18:55,924 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 01:18:55,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:55,977 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 01:18:56,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:18:56,227 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 01:18:56,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2019-01-14 01:18:56,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-14 01:18:56,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-14 01:18:56,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-01-14 01:18:56,230 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2019-01-14 01:18:56,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:18:56,409 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2019-01-14 01:18:56,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-14 01:18:56,410 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-01-14 01:18:56,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:18:56,411 INFO L225 Difference]: With dead ends: 41 [2019-01-14 01:18:56,412 INFO L226 Difference]: Without dead ends: 40 [2019-01-14 01:18:56,412 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-14 01:18:56,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-01-14 01:18:56,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 27. [2019-01-14 01:18:56,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-01-14 01:18:56,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-01-14 01:18:56,418 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 10 [2019-01-14 01:18:56,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:18:56,418 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-01-14 01:18:56,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-14 01:18:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-01-14 01:18:56,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 01:18:56,419 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:18:56,419 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2019-01-14 01:18:56,420 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:18:56,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:18:56,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1187367381, now seen corresponding path program 1 times [2019-01-14 01:18:56,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:18:56,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:18:56,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:56,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:56,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:18:56,525 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 01:18:56,525 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 01:18:56,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:56,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 01:18:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:18:56,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 01:18:56,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2019-01-14 01:18:56,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-01-14 01:18:56,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-01-14 01:18:56,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-01-14 01:18:56,727 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 8 states. [2019-01-14 01:18:56,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:18:56,816 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2019-01-14 01:18:56,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 01:18:56,817 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-01-14 01:18:56,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:18:56,819 INFO L225 Difference]: With dead ends: 27 [2019-01-14 01:18:56,819 INFO L226 Difference]: Without dead ends: 26 [2019-01-14 01:18:56,819 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2019-01-14 01:18:56,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-01-14 01:18:56,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-01-14 01:18:56,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-01-14 01:18:56,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2019-01-14 01:18:56,823 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 11 [2019-01-14 01:18:56,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:18:56,824 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2019-01-14 01:18:56,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-01-14 01:18:56,824 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2019-01-14 01:18:56,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 01:18:56,825 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:18:56,825 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:18:56,825 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:18:56,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:18:56,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1844723183, now seen corresponding path program 1 times [2019-01-14 01:18:56,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:18:56,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:18:56,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:56,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:56,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:56,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 01:18:56,943 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 01:18:56,943 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 01:18:56,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:56,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 01:18:57,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-14 01:18:57,226 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-01-14 01:18:57,227 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2019-01-14 01:18:57,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-14 01:18:57,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-14 01:18:57,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-01-14 01:18:57,231 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 9 states. [2019-01-14 01:18:57,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:18:57,568 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2019-01-14 01:18:57,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-14 01:18:57,569 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-01-14 01:18:57,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:18:57,570 INFO L225 Difference]: With dead ends: 48 [2019-01-14 01:18:57,570 INFO L226 Difference]: Without dead ends: 47 [2019-01-14 01:18:57,572 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2019-01-14 01:18:57,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-01-14 01:18:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 36. [2019-01-14 01:18:57,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-01-14 01:18:57,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2019-01-14 01:18:57,578 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 12 [2019-01-14 01:18:57,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:18:57,579 INFO L480 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2019-01-14 01:18:57,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-14 01:18:57,579 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2019-01-14 01:18:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-14 01:18:57,581 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:18:57,581 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:18:57,581 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:18:57,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:18:57,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1351843898, now seen corresponding path program 1 times [2019-01-14 01:18:57,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:18:57,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:18:57,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:57,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:57,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:57,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 01:18:57,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-14 01:18:57,654 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 01:18:57,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 01:18:57,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 01:18:57,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 01:18:57,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 01:18:57,655 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand 3 states. [2019-01-14 01:18:57,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 01:18:57,695 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2019-01-14 01:18:57,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 01:18:57,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-01-14 01:18:57,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 01:18:57,698 INFO L225 Difference]: With dead ends: 48 [2019-01-14 01:18:57,699 INFO L226 Difference]: Without dead ends: 47 [2019-01-14 01:18:57,699 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 [2019-01-14 01:18:57,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2019-01-14 01:18:57,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2019-01-14 01:18:57,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2019-01-14 01:18:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2019-01-14 01:18:57,705 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 13 [2019-01-14 01:18:57,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 01:18:57,705 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2019-01-14 01:18:57,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 01:18:57,705 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2019-01-14 01:18:57,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-01-14 01:18:57,706 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 01:18:57,706 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 01:18:57,707 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-01-14 01:18:57,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 01:18:57,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1042512047, now seen corresponding path program 1 times [2019-01-14 01:18:57,707 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 01:18:57,707 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 01:18:57,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:57,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 01:18:57,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 01:18:57,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:18:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 01:18:57,768 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 01:18:57,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 01:18:57 BoogieIcfgContainer [2019-01-14 01:18:57,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 01:18:57,801 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 01:18:57,801 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 01:18:57,802 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 01:18:57,802 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 01:18:55" (3/4) ... [2019-01-14 01:18:57,804 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 01:18:57,851 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 01:18:57,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 01:18:57,852 INFO L168 Benchmark]: Toolchain (without parser) took 3626.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 946.0 MB in the beginning and 981.1 MB in the end (delta: -35.1 MB). Peak memory consumption was 97.0 MB. Max. memory is 11.5 GB. [2019-01-14 01:18:57,854 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:18:57,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.70 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:18:57,855 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.97 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:18:57,856 INFO L168 Benchmark]: Boogie Preprocessor took 87.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-01-14 01:18:57,857 INFO L168 Benchmark]: RCFGBuilder took 424.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2019-01-14 01:18:57,858 INFO L168 Benchmark]: TraceAbstraction took 2701.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.1 MB in the end (delta: 127.1 MB). Peak memory consumption was 127.1 MB. Max. memory is 11.5 GB. [2019-01-14 01:18:57,858 INFO L168 Benchmark]: Witness Printer took 50.17 ms. Allocated memory is still 1.2 GB. Free memory is still 981.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 01:18:57,863 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.70 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 47.97 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 87.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -192.3 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 424.15 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2701.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.1 MB in the end (delta: 127.1 MB). Peak memory consumption was 127.1 MB. Max. memory is 11.5 GB. * Witness Printer took 50.17 ms. Allocated memory is still 1.2 GB. Free memory is still 981.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 26]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int a_length = __VERIFIER_nondet_int(); [L13] COND FALSE !(a_length < 1) [L16] int a[a_length]; [L17] int j = 0; [L17] COND TRUE j < a_length [L18] a[j] = __VERIFIER_nondet_int() [L17] j++ [L17] COND FALSE !(j < a_length) [L20] int offset = 1; [L21] int i = 0; [L22] COND TRUE i < a_length [L23] EXPR a[i] [L23] COND FALSE !(a[i] < 0) [L26] EXPR i + offset [L26] EXPR a[i] [L26] i + offset + a[i] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. UNSAFE Result, 2.6s OverallTime, 7 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 92 SDtfs, 145 SDslu, 183 SDs, 0 SdLazy, 202 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=6, 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: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 41 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 2282 SizeOfPredicates, 4 NumberOfNonLiveVariables, 121 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 6/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...