./Ultimate.py --spec /storage/repos/svcomp/c/properties/no-overflow.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c --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/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_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 b51d3ff9a76866bd9c6637bca261a8433dd4524e ............................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-91b1670 [2018-11-28 23:06:46,246 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:06:46,248 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:06:46,260 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:06:46,260 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:06:46,261 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:06:46,263 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:06:46,265 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:06:46,267 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:06:46,268 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:06:46,269 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:06:46,269 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:06:46,270 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:06:46,271 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:06:46,272 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:06:46,273 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:06:46,274 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:06:46,276 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:06:46,279 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:06:46,280 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:06:46,282 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:06:46,283 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:06:46,286 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:06:46,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:06:46,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:06:46,288 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:06:46,289 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:06:46,290 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:06:46,291 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:06:46,292 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:06:46,292 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:06:46,293 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:06:46,293 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:06:46,294 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:06:46,295 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:06:46,296 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:06:46,296 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 23:06:46,317 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:06:46,317 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:06:46,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 23:06:46,321 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 23:06:46,321 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:06:46,322 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:06:46,322 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:06:46,322 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:06:46,322 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:06:46,322 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:06:46,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:06:46,325 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 23:06:46,326 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 23:06:46,326 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 23:06:46,326 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 23:06:46,326 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:06:46,326 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:06:46,327 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 23:06:46,327 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:06:46,327 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:06:46,327 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 23:06:46,327 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 23:06:46,328 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 23:06:46,330 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:06:46,331 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 23:06:46,331 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 23:06:46,332 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:06:46,332 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 23:06:46,332 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 23:06:46,332 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 -> b51d3ff9a76866bd9c6637bca261a8433dd4524e [2018-11-28 23:06:46,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:06:46,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:06:46,410 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:06:46,412 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:06:46,412 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:06:46,413 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c [2018-11-28 23:06:46,473 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cf4df0ce/c3e8eec8a5bc4c01936a7cb399c197ae/FLAG5c61fd72c [2018-11-28 23:06:46,913 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:06:46,914 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c [2018-11-28 23:06:46,921 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cf4df0ce/c3e8eec8a5bc4c01936a7cb399c197ae/FLAG5c61fd72c [2018-11-28 23:06:47,277 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4cf4df0ce/c3e8eec8a5bc4c01936a7cb399c197ae [2018-11-28 23:06:47,281 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:06:47,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:06:47,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:47,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:06:47,288 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:06:47,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b94ef99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47, skipping insertion in model container [2018-11-28 23:06:47,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:06:47,318 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:06:47,554 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:47,562 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:06:47,584 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:06:47,603 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:06:47,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47 WrapperNode [2018-11-28 23:06:47,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:06:47,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:47,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:06:47,606 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:06:47,617 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:06:47,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:06:47,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:06:47,633 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:06:47,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (1/1) ... [2018-11-28 23:06:47,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:06:47,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:06:47,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:06:47,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:06:47,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (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 23:06:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 23:06:47,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 23:06:47,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:06:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:06:47,816 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 23:06:47,816 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 23:06:48,176 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:06:48,177 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-11-28 23:06:48,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:48 BoogieIcfgContainer [2018-11-28 23:06:48,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:06:48,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 23:06:48,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 23:06:48,182 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 23:06:48,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:06:47" (1/3) ... [2018-11-28 23:06:48,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2fc64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:48, skipping insertion in model container [2018-11-28 23:06:48,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:06:47" (2/3) ... [2018-11-28 23:06:48,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a2fc64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:06:48, skipping insertion in model container [2018-11-28 23:06:48,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:48" (3/3) ... [2018-11-28 23:06:48,188 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-counterex1b_false-no-overflow.c [2018-11-28 23:06:48,199 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 23:06:48,208 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-11-28 23:06:48,232 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-11-28 23:06:48,275 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:06:48,276 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 23:06:48,276 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 23:06:48,277 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 23:06:48,277 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:06:48,277 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:06:48,277 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 23:06:48,277 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:06:48,278 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 23:06:48,298 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-28 23:06:48,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 23:06:48,304 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:48,305 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:48,308 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:48,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:48,314 INFO L82 PathProgramCache]: Analyzing trace with hash 257117704, now seen corresponding path program 1 times [2018-11-28 23:06:48,317 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:48,318 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:48,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:48,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:48,442 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 23:06:48,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:48,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:48,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 23:06:48,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 23:06:48,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 23:06:48,469 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-11-28 23:06:48,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:48,494 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2018-11-28 23:06:48,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:06:48,496 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2018-11-28 23:06:48,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:48,507 INFO L225 Difference]: With dead ends: 53 [2018-11-28 23:06:48,507 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 23:06:48,511 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 23:06:48,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 23:06:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-28 23:06:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 23:06:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-11-28 23:06:48,554 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 8 [2018-11-28 23:06:48,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:48,555 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-11-28 23:06:48,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 23:06:48,555 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-28 23:06:48,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:06:48,556 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:48,556 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:48,556 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:48,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:48,557 INFO L82 PathProgramCache]: Analyzing trace with hash -2018510573, now seen corresponding path program 1 times [2018-11-28 23:06:48,558 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:48,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:48,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:48,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:48,626 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 23:06:48,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:48,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:48,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:48,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:48,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:48,631 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 3 states. [2018-11-28 23:06:48,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:48,688 INFO L93 Difference]: Finished difference Result 24 states and 28 transitions. [2018-11-28 23:06:48,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:48,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:06:48,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:48,692 INFO L225 Difference]: With dead ends: 24 [2018-11-28 23:06:48,692 INFO L226 Difference]: Without dead ends: 23 [2018-11-28 23:06:48,693 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 23:06:48,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-28 23:06:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-28 23:06:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 23:06:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2018-11-28 23:06:48,703 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2018-11-28 23:06:48,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:48,703 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2018-11-28 23:06:48,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:48,703 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2018-11-28 23:06:48,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 23:06:48,704 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:48,704 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:48,704 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:48,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:48,705 INFO L82 PathProgramCache]: Analyzing trace with hash -2018510518, now seen corresponding path program 1 times [2018-11-28 23:06:48,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:48,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:48,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:48,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:48,768 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 23:06:48,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:48,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:48,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:48,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:48,770 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 3 states. [2018-11-28 23:06:48,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:48,858 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2018-11-28 23:06:48,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:48,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-28 23:06:48,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:48,860 INFO L225 Difference]: With dead ends: 38 [2018-11-28 23:06:48,860 INFO L226 Difference]: Without dead ends: 37 [2018-11-28 23:06:48,861 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 23:06:48,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-28 23:06:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2018-11-28 23:06:48,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 23:06:48,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2018-11-28 23:06:48,868 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 10 [2018-11-28 23:06:48,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:48,868 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2018-11-28 23:06:48,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:48,869 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2018-11-28 23:06:48,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:06:48,869 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:48,869 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:48,870 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:48,870 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:48,870 INFO L82 PathProgramCache]: Analyzing trace with hash 1850681747, now seen corresponding path program 1 times [2018-11-28 23:06:48,870 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:48,871 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:48,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:48,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:48,914 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 23:06:48,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:48,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:06:48,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 23:06:48,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:06:48,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:06:48,916 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 3 states. [2018-11-28 23:06:48,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:48,946 INFO L93 Difference]: Finished difference Result 34 states and 44 transitions. [2018-11-28 23:06:48,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:06:48,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 23:06:48,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:48,949 INFO L225 Difference]: With dead ends: 34 [2018-11-28 23:06:48,949 INFO L226 Difference]: Without dead ends: 33 [2018-11-28 23:06:48,950 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 23:06:48,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-28 23:06:48,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-28 23:06:48,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-28 23:06:48,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2018-11-28 23:06:48,957 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 11 [2018-11-28 23:06:48,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:48,958 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2018-11-28 23:06:48,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 23:06:48,958 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2018-11-28 23:06:48,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 23:06:48,958 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:48,959 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:48,960 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:48,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:48,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1850683445, now seen corresponding path program 1 times [2018-11-28 23:06:48,960 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:48,961 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:48,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:48,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:06:49,045 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 23:06:49,045 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:06:49,045 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:06:49,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 23:06:49,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:06:49,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:06:49,046 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand 4 states. [2018-11-28 23:06:49,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:06:49,215 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2018-11-28 23:06:49,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:06:49,216 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 23:06:49,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 23:06:49,217 INFO L225 Difference]: With dead ends: 54 [2018-11-28 23:06:49,217 INFO L226 Difference]: Without dead ends: 52 [2018-11-28 23:06:49,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:06:49,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-11-28 23:06:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-11-28 23:06:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-11-28 23:06:49,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2018-11-28 23:06:49,228 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 69 transitions. Word has length 11 [2018-11-28 23:06:49,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 23:06:49,228 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 69 transitions. [2018-11-28 23:06:49,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 23:06:49,228 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2018-11-28 23:06:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 23:06:49,229 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 23:06:49,229 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:06:49,230 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 23:06:49,230 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:06:49,230 INFO L82 PathProgramCache]: Analyzing trace with hash -120754312, now seen corresponding path program 1 times [2018-11-28 23:06:49,230 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:06:49,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:06:49,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:49,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:06:49,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:06:49,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:06:49,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:06:49,272 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 23:06:49,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:06:49 BoogieIcfgContainer [2018-11-28 23:06:49,295 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 23:06:49,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:06:49,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:06:49,295 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:06:49,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:06:48" (3/4) ... [2018-11-28 23:06:49,298 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 23:06:49,344 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:06:49,344 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:06:49,345 INFO L168 Benchmark]: Toolchain (without parser) took 2063.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -112.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:49,347 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-28 23:06:49,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.17 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. [2018-11-28 23:06:49,349 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.47 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. [2018-11-28 23:06:49,349 INFO L168 Benchmark]: Boogie Preprocessor took 42.37 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. [2018-11-28 23:06:49,350 INFO L168 Benchmark]: RCFGBuilder took 502.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:49,351 INFO L168 Benchmark]: TraceAbstraction took 1115.90 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:06:49,351 INFO L168 Benchmark]: Witness Printer took 49.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:06:49,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 321.17 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 26.47 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 42.37 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. * RCFGBuilder took 502.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1115.90 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: 48.8 MB). Peak memory consumption was 48.8 MB. Max. memory is 11.5 GB. * Witness Printer took 49.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n; [L15] n = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] COND TRUE x >= 0 VAL [n=2147483647, x=0, y=2147483647] [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 VAL [__VERIFIER_nondet_int()=0, n=2147483647, x=0, y=2147483647, y >= 0 && __VERIFIER_nondet_int() != 0=0] [L19] COND FALSE !(y >= 0 && __VERIFIER_nondet_int() != 0) [L22] EXPR x - 1 [L22] x = x - 1 VAL [n=2147483647, x=-1, y=2147483647] [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] y <= n && __VERIFIER_nondet_int() != 0 VAL [__VERIFIER_nondet_int()=1, n=2147483647, x=-1, y=2147483647, y <= n && __VERIFIER_nondet_int() != 0=1] [L23] COND TRUE y <= n && __VERIFIER_nondet_int() != 0 [L24] y + 1 VAL [n=2147483647, x=-1, y=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 6 error locations. UNSAFE Result, 1.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 117 SDtfs, 67 SDslu, 44 SDs, 0 SdLazy, 43 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred in iteration=5, 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, 5 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 801 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...