./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/bitvector/modulus_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/bitvector/modulus_true-unreach-call_true-no-overflow.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c028dc478ad08c52f1db2e76a15a3094442b18a8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-30 15:56:58,973 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-30 15:56:58,976 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-30 15:56:58,989 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-30 15:56:58,990 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-30 15:56:58,991 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-30 15:56:58,992 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-30 15:56:58,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-30 15:56:58,997 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-30 15:56:59,001 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-30 15:56:59,002 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-30 15:56:59,005 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-30 15:56:59,006 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-30 15:56:59,006 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-30 15:56:59,008 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-30 15:56:59,011 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-30 15:56:59,012 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-30 15:56:59,013 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-30 15:56:59,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-30 15:56:59,020 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-30 15:56:59,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-30 15:56:59,024 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-30 15:56:59,030 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-30 15:56:59,030 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-30 15:56:59,030 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-30 15:56:59,031 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-30 15:56:59,032 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-30 15:56:59,035 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-30 15:56:59,036 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-30 15:56:59,039 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-30 15:56:59,039 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-30 15:56:59,040 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-30 15:56:59,041 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-30 15:56:59,041 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-30 15:56:59,042 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-30 15:56:59,043 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-30 15:56:59,044 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-30 15:56:59,059 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-30 15:56:59,060 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-30 15:56:59,061 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-30 15:56:59,061 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-30 15:56:59,061 INFO L133 SettingsManager]: * Use SBE=true [2018-12-30 15:56:59,061 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-30 15:56:59,062 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-30 15:56:59,062 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-30 15:56:59,062 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-30 15:56:59,062 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-30 15:56:59,062 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-30 15:56:59,063 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-30 15:56:59,063 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-30 15:56:59,063 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-30 15:56:59,063 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-30 15:56:59,063 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-30 15:56:59,063 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-30 15:56:59,064 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-30 15:56:59,064 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-30 15:56:59,064 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-30 15:56:59,064 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-30 15:56:59,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-30 15:56:59,065 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-30 15:56:59,065 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-30 15:56:59,065 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-30 15:56:59,065 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-30 15:56:59,065 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-30 15:56:59,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-30 15:56:59,066 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2018-12-30 15:56:59,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-30 15:56:59,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-30 15:56:59,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-30 15:56:59,117 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-30 15:56:59,117 INFO L276 PluginConnector]: CDTParser initialized [2018-12-30 15:56:59,118 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-12-30 15:56:59,176 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facc33b1d/b9874e60a63f4c6c9c5e68f829ae2e93/FLAGf6efb12dc [2018-12-30 15:56:59,643 INFO L307 CDTParser]: Found 1 translation units. [2018-12-30 15:56:59,644 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/bitvector/modulus_true-unreach-call_true-no-overflow.i [2018-12-30 15:56:59,650 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facc33b1d/b9874e60a63f4c6c9c5e68f829ae2e93/FLAGf6efb12dc [2018-12-30 15:57:00,029 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/facc33b1d/b9874e60a63f4c6c9c5e68f829ae2e93 [2018-12-30 15:57:00,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-30 15:57:00,036 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-30 15:57:00,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-30 15:57:00,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-30 15:57:00,047 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-30 15:57:00,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3277d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00, skipping insertion in model container [2018-12-30 15:57:00,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,062 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-30 15:57:00,086 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-30 15:57:00,325 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 15:57:00,329 INFO L191 MainTranslator]: Completed pre-run [2018-12-30 15:57:00,350 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-30 15:57:00,366 INFO L195 MainTranslator]: Completed translation [2018-12-30 15:57:00,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00 WrapperNode [2018-12-30 15:57:00,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-30 15:57:00,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-30 15:57:00,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-30 15:57:00,368 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-30 15:57:00,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,413 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-30 15:57:00,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-30 15:57:00,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-30 15:57:00,414 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-30 15:57:00,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (1/1) ... [2018-12-30 15:57:00,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-30 15:57:00,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-30 15:57:00,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-30 15:57:00,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-30 15:57:00,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (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 [2018-12-30 15:57:00,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-30 15:57:00,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-30 15:57:00,837 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-30 15:57:00,838 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-30 15:57:00,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 03:57:00 BoogieIcfgContainer [2018-12-30 15:57:00,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-30 15:57:00,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-30 15:57:00,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-30 15:57:00,843 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-30 15:57:00,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.12 03:57:00" (1/3) ... [2018-12-30 15:57:00,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79743abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 03:57:00, skipping insertion in model container [2018-12-30 15:57:00,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.12 03:57:00" (2/3) ... [2018-12-30 15:57:00,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79743abe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.12 03:57:00, skipping insertion in model container [2018-12-30 15:57:00,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 03:57:00" (3/3) ... [2018-12-30 15:57:00,848 INFO L112 eAbstractionObserver]: Analyzing ICFG modulus_true-unreach-call_true-no-overflow.i [2018-12-30 15:57:00,860 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-30 15:57:00,875 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-30 15:57:00,901 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-30 15:57:00,941 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-30 15:57:00,942 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-30 15:57:00,942 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-30 15:57:00,942 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-30 15:57:00,945 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-30 15:57:00,945 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-30 15:57:00,945 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-30 15:57:00,945 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-30 15:57:00,945 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-30 15:57:00,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2018-12-30 15:57:00,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-30 15:57:00,974 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 15:57:00,975 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-30 15:57:00,977 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 15:57:00,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 15:57:00,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2018-12-30 15:57:00,986 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 15:57:00,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 15:57:01,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:01,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:01,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:01,088 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-30 15:57:01,088 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-30 15:57:01,088 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-30 15:57:01,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:01,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 15:57:01,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 15:57:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 15:57:01,793 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 15:57:01,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-30 15:57:01,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-30 15:57:01,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-30 15:57:01,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-30 15:57:01,812 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 5 states. [2018-12-30 15:57:02,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 15:57:02,243 INFO L93 Difference]: Finished difference Result 42 states and 56 transitions. [2018-12-30 15:57:02,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-30 15:57:02,244 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2018-12-30 15:57:02,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 15:57:02,253 INFO L225 Difference]: With dead ends: 42 [2018-12-30 15:57:02,254 INFO L226 Difference]: Without dead ends: 16 [2018-12-30 15:57:02,257 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-30 15:57:02,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-12-30 15:57:02,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2018-12-30 15:57:02,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-30 15:57:02,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-12-30 15:57:02,290 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 15 transitions. Word has length 7 [2018-12-30 15:57:02,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 15:57:02,290 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-12-30 15:57:02,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-30 15:57:02,291 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2018-12-30 15:57:02,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-30 15:57:02,291 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 15:57:02,291 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-30 15:57:02,292 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 15:57:02,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 15:57:02,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1538929205, now seen corresponding path program 1 times [2018-12-30 15:57:02,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 15:57:02,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 15:57:02,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:02,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:02,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:02,307 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-30 15:57:02,309 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-30 15:57:02,309 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-30 15:57:02,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 15:57:02,360 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 15:57:02,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 15:57:02,617 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 15:57:02,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-30 15:57:02,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-30 15:57:02,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-30 15:57:02,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-30 15:57:02,619 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. Second operand 6 states. [2018-12-30 15:57:02,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 15:57:02,769 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-30 15:57:02,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-30 15:57:02,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2018-12-30 15:57:02,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 15:57:02,770 INFO L225 Difference]: With dead ends: 16 [2018-12-30 15:57:02,770 INFO L226 Difference]: Without dead ends: 11 [2018-12-30 15:57:02,772 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-30 15:57:02,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-30 15:57:02,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-30 15:57:02,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-30 15:57:02,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-12-30 15:57:02,775 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2018-12-30 15:57:02,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 15:57:02,776 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-12-30 15:57:02,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-30 15:57:02,776 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-30 15:57:02,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-30 15:57:02,777 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 15:57:02,777 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-30 15:57:02,777 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 15:57:02,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 15:57:02,777 INFO L82 PathProgramCache]: Analyzing trace with hash 1874060002, now seen corresponding path program 1 times [2018-12-30 15:57:02,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 15:57:02,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 15:57:02,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:02,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:02,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:02,791 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-30 15:57:02,791 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-30 15:57:02,791 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-30 15:57:02,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:02,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 15:57:02,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 15:57:02,868 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-30 15:57:02,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 15:57:02,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-30 15:57:02,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-30 15:57:02,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-30 15:57:02,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-30 15:57:02,888 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 4 states. [2018-12-30 15:57:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 15:57:02,969 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2018-12-30 15:57:02,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-30 15:57:02,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-12-30 15:57:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 15:57:02,970 INFO L225 Difference]: With dead ends: 20 [2018-12-30 15:57:02,970 INFO L226 Difference]: Without dead ends: 12 [2018-12-30 15:57:02,971 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-30 15:57:02,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-30 15:57:02,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-30 15:57:02,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-30 15:57:02,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-12-30 15:57:02,975 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 10 [2018-12-30 15:57:02,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 15:57:02,975 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-12-30 15:57:02,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-30 15:57:02,976 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-30 15:57:02,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-30 15:57:02,976 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 15:57:02,976 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-30 15:57:02,977 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 15:57:02,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 15:57:02,977 INFO L82 PathProgramCache]: Analyzing trace with hash 831805054, now seen corresponding path program 1 times [2018-12-30 15:57:02,977 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 15:57:02,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 15:57:02,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:02,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:02,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:02,988 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-30 15:57:02,988 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-30 15:57:02,988 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-30 15:57:03,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 15:57:03,024 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 15:57:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-30 15:57:05,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 15:57:05,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-30 15:57:05,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-30 15:57:05,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-30 15:57:05,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-30 15:57:05,070 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 6 states. [2018-12-30 15:57:05,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 15:57:05,341 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2018-12-30 15:57:05,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-30 15:57:05,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-30 15:57:05,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 15:57:05,342 INFO L225 Difference]: With dead ends: 16 [2018-12-30 15:57:05,343 INFO L226 Difference]: Without dead ends: 12 [2018-12-30 15:57:05,343 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-12-30 15:57:05,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-12-30 15:57:05,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-12-30 15:57:05,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-12-30 15:57:05,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2018-12-30 15:57:05,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 11 [2018-12-30 15:57:05,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 15:57:05,346 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-12-30 15:57:05,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-30 15:57:05,347 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-30 15:57:05,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-30 15:57:05,347 INFO L394 BasicCegarLoop]: Found error trace [2018-12-30 15:57:05,347 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-30 15:57:05,348 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-30 15:57:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-30 15:57:05,348 INFO L82 PathProgramCache]: Analyzing trace with hash 831864636, now seen corresponding path program 1 times [2018-12-30 15:57:05,348 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-30 15:57:05,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-30 15:57:05,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:05,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:05,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-30 15:57:05,358 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-12-30 15:57:05,358 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-12-30 15:57:05,358 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-12-30 15:57:05,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-30 15:57:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-30 15:57:10,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-30 15:57:10,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-30 15:57:10,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-30 15:57:10,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-30 15:57:10,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-30 15:57:10,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-30 15:57:10,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-30 15:57:10,718 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 7 states. [2018-12-30 15:57:10,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-30 15:57:10,783 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-12-30 15:57:10,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-30 15:57:10,784 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-12-30 15:57:10,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-30 15:57:10,784 INFO L225 Difference]: With dead ends: 12 [2018-12-30 15:57:10,784 INFO L226 Difference]: Without dead ends: 0 [2018-12-30 15:57:10,785 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2018-12-30 15:57:10,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-30 15:57:10,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-30 15:57:10,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-30 15:57:10,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-30 15:57:10,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-12-30 15:57:10,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-30 15:57:10,786 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-30 15:57:10,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-30 15:57:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-30 15:57:10,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-30 15:57:10,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-30 15:57:10,821 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-30 15:57:10,821 INFO L448 ceAbstractionStarter]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2018-12-30 15:57:10,821 INFO L448 ceAbstractionStarter]: For program point L7(line 7) no Hoare annotation was computed. [2018-12-30 15:57:10,821 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2018-12-30 15:57:10,822 INFO L444 ceAbstractionStarter]: At program point L34-2(lines 34 37) the Hoare annotation is: (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) [2018-12-30 15:57:10,822 INFO L448 ceAbstractionStarter]: For program point L34-3(lines 34 37) no Hoare annotation was computed. [2018-12-30 15:57:10,822 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 44) no Hoare annotation was computed. [2018-12-30 15:57:10,822 INFO L444 ceAbstractionStarter]: At program point L32-2(lines 32 39) the Hoare annotation is: (and (< 0 (mod ULTIMATE.start_main_~d~0 4294967296)) (= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~m~0)) [2018-12-30 15:57:10,822 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-30 15:57:10,823 INFO L448 ceAbstractionStarter]: For program point L32-3(lines 30 44) no Hoare annotation was computed. [2018-12-30 15:57:10,823 INFO L451 ceAbstractionStarter]: At program point L30-1(lines 30 44) the Hoare annotation is: true [2018-12-30 15:57:10,823 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-30 15:57:10,823 INFO L451 ceAbstractionStarter]: At program point L45(lines 22 46) the Hoare annotation is: true [2018-12-30 15:57:10,823 INFO L448 ceAbstractionStarter]: For program point L6(lines 6 8) no Hoare annotation was computed. [2018-12-30 15:57:10,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.12 03:57:10 BoogieIcfgContainer [2018-12-30 15:57:10,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-30 15:57:10,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-30 15:57:10,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-30 15:57:10,837 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-30 15:57:10,837 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.12 03:57:00" (3/4) ... [2018-12-30 15:57:10,841 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-30 15:57:10,852 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-30 15:57:10,852 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-30 15:57:10,901 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-30 15:57:10,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-30 15:57:10,902 INFO L168 Benchmark]: Toolchain (without parser) took 10867.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 951.3 MB in the beginning and 945.5 MB in the end (delta: 5.8 MB). Peak memory consumption was 143.2 MB. Max. memory is 11.5 GB. [2018-12-30 15:57:10,904 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 15:57:10,905 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-30 15:57:10,905 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.35 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 15:57:10,906 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-30 15:57:10,909 INFO L168 Benchmark]: RCFGBuilder took 398.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-30 15:57:10,910 INFO L168 Benchmark]: TraceAbstraction took 9997.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.5 MB in the end (delta: 167.1 MB). Peak memory consumption was 167.1 MB. Max. memory is 11.5 GB. [2018-12-30 15:57:10,910 INFO L168 Benchmark]: Witness Printer took 64.83 ms. Allocated memory is still 1.2 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-30 15:57:10,914 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.91 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 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 45.35 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 398.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9997.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 945.5 MB in the end (delta: 167.1 MB). Peak memory consumption was 167.1 MB. Max. memory is 11.5 GB. * Witness Printer took 64.83 ms. Allocated memory is still 1.2 GB. Free memory is still 945.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 < d % 4294967296 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 < d % 4294967296 && n == m - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 9.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 45 SDslu, 56 SDs, 0 SdLazy, 124 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 13 NumberOfFragments, 16 HoareAnnotationTreeSize, 4 FomulaSimplifications, 21 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 5.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 41 ConstructedInterpolants, 1 QuantifiedInterpolants, 2042 SizeOfPredicates, 26 NumberOfNonLiveVariables, 124 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...