java -ea -Xmx8000000000 -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 ../../../trunk/examples/toolchains/AutomizerCInline_WitnessPrinter.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 13:12:46,927 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:12:46,929 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:12:46,943 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:12:46,943 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:12:46,944 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:12:46,946 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:12:46,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:12:46,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:12:46,952 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:12:46,953 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:12:46,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:12:46,956 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:12:46,961 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:12:46,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:12:46,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:12:46,963 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:12:46,967 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:12:46,970 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:12:46,972 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:12:46,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:12:46,976 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:12:46,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:12:46,978 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:12:46,978 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:12:46,981 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:12:46,983 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:12:46,985 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:12:46,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:12:46,988 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:12:46,988 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:12:46,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:12:46,990 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:12:46,990 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:12:46,991 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:12:46,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:12:46,994 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 13:12:47,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:12:47,017 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:12:47,017 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 13:12:47,018 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 13:12:47,018 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:12:47,018 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:12:47,019 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:12:47,019 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:12:47,019 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:12:47,019 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:12:47,019 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:12:47,020 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:12:47,020 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 13:12:47,020 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 13:12:47,020 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 13:12:47,020 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:12:47,020 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:12:47,021 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:12:47,021 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 13:12:47,021 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:12:47,021 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:12:47,021 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 13:12:47,022 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 13:12:47,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 13:12:47,022 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:12:47,022 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 13:12:47,022 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 13:12:47,023 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:12:47,023 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 13:12:47,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 13:12:47,023 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 13:12:47,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:12:47,078 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:12:47,081 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:12:47,083 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:12:47,083 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:12:47,084 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-23 13:12:47,138 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89507ed56/924590cd9c484afaa39c58acd95decd7/FLAG595ce7dd6 [2018-11-23 13:12:47,561 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:12:47,562 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-23 13:12:47,567 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89507ed56/924590cd9c484afaa39c58acd95decd7/FLAG595ce7dd6 [2018-11-23 13:12:47,952 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89507ed56/924590cd9c484afaa39c58acd95decd7 [2018-11-23 13:12:47,961 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:12:47,963 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:12:47,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:12:47,964 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:12:47,967 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:12:47,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:12:47" (1/1) ... [2018-11-23 13:12:47,972 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b56cf7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:47, skipping insertion in model container [2018-11-23 13:12:47,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:12:47" (1/1) ... [2018-11-23 13:12:47,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:12:48,010 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:12:48,242 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:12:48,247 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:12:48,267 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:12:48,283 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:12:48,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48 WrapperNode [2018-11-23 13:12:48,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:12:48,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:12:48,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:12:48,285 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:12:48,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:12:48,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:12:48,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:12:48,304 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:12:48,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (1/1) ... [2018-11-23 13:12:48,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:12:48,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:12:48,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:12:48,323 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:12:48,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (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 [2018-11-23 13:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 13:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 13:12:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:12:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:12:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 13:12:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 13:12:48,880 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:12:48,880 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 13:12:48,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:12:48 BoogieIcfgContainer [2018-11-23 13:12:48,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:12:48,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 13:12:48,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 13:12:48,885 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 13:12:48,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:12:47" (1/3) ... [2018-11-23 13:12:48,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2918b80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:12:48, skipping insertion in model container [2018-11-23 13:12:48,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:12:48" (2/3) ... [2018-11-23 13:12:48,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2918b80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:12:48, skipping insertion in model container [2018-11-23 13:12:48,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:12:48" (3/3) ... [2018-11-23 13:12:48,889 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008_true-unreach-call.c.i.v+cfa-reducer.c [2018-11-23 13:12:48,898 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 13:12:48,904 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 13:12:48,920 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 13:12:48,949 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:12:48,950 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 13:12:48,950 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 13:12:48,951 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 13:12:48,951 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:12:48,951 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:12:48,951 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 13:12:48,951 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:12:48,951 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 13:12:48,970 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2018-11-23 13:12:48,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 13:12:48,976 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:12:48,977 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:12:48,979 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:12:48,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:12:48,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1277702393, now seen corresponding path program 1 times [2018-11-23 13:12:48,988 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:12:48,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:12:49,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:12:49,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:12:49,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:12:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:12:49,182 INFO L256 TraceCheckUtils]: 0: Hoare triple {19#true} call ULTIMATE.init(); {19#true} is VALID [2018-11-23 13:12:49,185 INFO L273 TraceCheckUtils]: 1: Hoare triple {19#true} ~__return_main~0 := 0;~__return_65~0 := 0; {19#true} is VALID [2018-11-23 13:12:49,186 INFO L273 TraceCheckUtils]: 2: Hoare triple {19#true} assume true; {19#true} is VALID [2018-11-23 13:12:49,186 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {19#true} {19#true} #28#return; {19#true} is VALID [2018-11-23 13:12:49,187 INFO L256 TraceCheckUtils]: 4: Hoare triple {19#true} call #t~ret2 := main(); {19#true} is VALID [2018-11-23 13:12:49,192 INFO L273 TraceCheckUtils]: 5: Hoare triple {19#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := -50;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~main__y~0 := #t~nondet1;havoc #t~nondet1; {21#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-23 13:12:49,192 INFO L273 TraceCheckUtils]: 6: Hoare triple {21#(<= (+ main_~main__x~0 50) 0)} assume !!(-1000 < ~main__y~0); {21#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-23 13:12:49,194 INFO L273 TraceCheckUtils]: 7: Hoare triple {21#(<= (+ main_~main__x~0 50) 0)} assume !!(~main__y~0 < 1000000); {21#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-23 13:12:49,195 INFO L273 TraceCheckUtils]: 8: Hoare triple {21#(<= (+ main_~main__x~0 50) 0)} assume !(~main__x~0 < 0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~main__y~0 > 0 then 1 else 0);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {20#false} is VALID [2018-11-23 13:12:49,195 INFO L273 TraceCheckUtils]: 9: Hoare triple {20#false} assume 0 == ~__VERIFIER_assert__cond~0; {20#false} is VALID [2018-11-23 13:12:49,196 INFO L273 TraceCheckUtils]: 10: Hoare triple {20#false} assume !false; {20#false} is VALID [2018-11-23 13:12:49,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:12:49,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:12:49,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 13:12:49,207 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-23 13:12:49,210 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 13:12:49,214 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 13:12:49,280 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:12:49,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 13:12:49,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 13:12:49,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:12:49,291 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2018-11-23 13:12:49,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:12:49,650 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2018-11-23 13:12:49,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 13:12:49,651 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-23 13:12:49,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:12:49,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:12:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2018-11-23 13:12:49,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:12:49,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 30 transitions. [2018-11-23 13:12:49,669 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 30 transitions. [2018-11-23 13:12:49,935 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:12:49,946 INFO L225 Difference]: With dead ends: 26 [2018-11-23 13:12:49,946 INFO L226 Difference]: Without dead ends: 13 [2018-11-23 13:12:49,949 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 13:12:49,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-11-23 13:12:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-23 13:12:50,023 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 13:12:50,023 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 13 states. [2018-11-23 13:12:50,024 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2018-11-23 13:12:50,024 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2018-11-23 13:12:50,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:12:50,028 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-11-23 13:12:50,029 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-23 13:12:50,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:12:50,029 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:12:50,029 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2018-11-23 13:12:50,030 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2018-11-23 13:12:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:12:50,033 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-11-23 13:12:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-23 13:12:50,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:12:50,033 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:12:50,033 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 13:12:50,034 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 13:12:50,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 13:12:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-11-23 13:12:50,039 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2018-11-23 13:12:50,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:12:50,039 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-11-23 13:12:50,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 13:12:50,039 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-11-23 13:12:50,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 13:12:50,040 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 13:12:50,040 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 13:12:50,040 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 13:12:50,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:12:50,041 INFO L82 PathProgramCache]: Analyzing trace with hash -954130992, now seen corresponding path program 1 times [2018-11-23 13:12:50,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:12:50,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:12:50,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:12:50,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:12:50,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:12:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:12:50,178 INFO L256 TraceCheckUtils]: 0: Hoare triple {101#true} call ULTIMATE.init(); {101#true} is VALID [2018-11-23 13:12:50,179 INFO L273 TraceCheckUtils]: 1: Hoare triple {101#true} ~__return_main~0 := 0;~__return_65~0 := 0; {101#true} is VALID [2018-11-23 13:12:50,179 INFO L273 TraceCheckUtils]: 2: Hoare triple {101#true} assume true; {101#true} is VALID [2018-11-23 13:12:50,179 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {101#true} {101#true} #28#return; {101#true} is VALID [2018-11-23 13:12:50,180 INFO L256 TraceCheckUtils]: 4: Hoare triple {101#true} call #t~ret2 := main(); {101#true} is VALID [2018-11-23 13:12:50,183 INFO L273 TraceCheckUtils]: 5: Hoare triple {101#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := -50;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~main__y~0 := #t~nondet1;havoc #t~nondet1; {103#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-23 13:12:50,184 INFO L273 TraceCheckUtils]: 6: Hoare triple {103#(<= (+ main_~main__x~0 50) 0)} assume !!(-1000 < ~main__y~0); {103#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-23 13:12:50,185 INFO L273 TraceCheckUtils]: 7: Hoare triple {103#(<= (+ main_~main__x~0 50) 0)} assume !!(~main__y~0 < 1000000); {103#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-23 13:12:50,186 INFO L273 TraceCheckUtils]: 8: Hoare triple {103#(<= (+ main_~main__x~0 50) 0)} assume ~main__x~0 < 0;~main__x~0 := ~main__x~0 + ~main__y~0;~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := 1 + ~main__y~0; {104#(<= (+ main_~main__x~0 51) main_~main__y~0)} is VALID [2018-11-23 13:12:50,188 INFO L273 TraceCheckUtils]: 9: Hoare triple {104#(<= (+ main_~main__x~0 51) main_~main__y~0)} assume !(~main__x~0 < 0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~main__y~0 > 0 then 1 else 0);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {105#(= main_~__VERIFIER_assert__cond~0 1)} is VALID [2018-11-23 13:12:50,191 INFO L273 TraceCheckUtils]: 10: Hoare triple {105#(= main_~__VERIFIER_assert__cond~0 1)} assume 0 == ~__VERIFIER_assert__cond~0; {102#false} is VALID [2018-11-23 13:12:50,191 INFO L273 TraceCheckUtils]: 11: Hoare triple {102#false} assume !false; {102#false} is VALID [2018-11-23 13:12:50,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:12:50,194 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 13:12:50,194 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 13:12:50,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:12:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:12:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:12:50,245 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:12:50,481 INFO L256 TraceCheckUtils]: 0: Hoare triple {101#true} call ULTIMATE.init(); {101#true} is VALID [2018-11-23 13:12:50,481 INFO L273 TraceCheckUtils]: 1: Hoare triple {101#true} ~__return_main~0 := 0;~__return_65~0 := 0; {101#true} is VALID [2018-11-23 13:12:50,482 INFO L273 TraceCheckUtils]: 2: Hoare triple {101#true} assume true; {101#true} is VALID [2018-11-23 13:12:50,482 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {101#true} {101#true} #28#return; {101#true} is VALID [2018-11-23 13:12:50,483 INFO L256 TraceCheckUtils]: 4: Hoare triple {101#true} call #t~ret2 := main(); {101#true} is VALID [2018-11-23 13:12:50,483 INFO L273 TraceCheckUtils]: 5: Hoare triple {101#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := -50;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~main__y~0 := #t~nondet1;havoc #t~nondet1; {101#true} is VALID [2018-11-23 13:12:50,483 INFO L273 TraceCheckUtils]: 6: Hoare triple {101#true} assume !!(-1000 < ~main__y~0); {101#true} is VALID [2018-11-23 13:12:50,484 INFO L273 TraceCheckUtils]: 7: Hoare triple {101#true} assume !!(~main__y~0 < 1000000); {101#true} is VALID [2018-11-23 13:12:50,485 INFO L273 TraceCheckUtils]: 8: Hoare triple {101#true} assume ~main__x~0 < 0;~main__x~0 := ~main__x~0 + ~main__y~0;~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := 1 + ~main__y~0; {133#(<= (+ main_~main__x~0 2) main_~main__y~0)} is VALID [2018-11-23 13:12:50,486 INFO L273 TraceCheckUtils]: 9: Hoare triple {133#(<= (+ main_~main__x~0 2) main_~main__y~0)} assume !(~main__x~0 < 0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~main__y~0 > 0 then 1 else 0);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {105#(= main_~__VERIFIER_assert__cond~0 1)} is VALID [2018-11-23 13:12:50,486 INFO L273 TraceCheckUtils]: 10: Hoare triple {105#(= main_~__VERIFIER_assert__cond~0 1)} assume 0 == ~__VERIFIER_assert__cond~0; {102#false} is VALID [2018-11-23 13:12:50,487 INFO L273 TraceCheckUtils]: 11: Hoare triple {102#false} assume !false; {102#false} is VALID [2018-11-23 13:12:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:12:50,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 13:12:50,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2018-11-23 13:12:50,512 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-23 13:12:50,512 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 13:12:50,512 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-23 13:12:50,547 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:12:50,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 13:12:50,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 13:12:50,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-23 13:12:50,548 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 6 states. [2018-11-23 13:12:50,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:12:50,995 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-23 13:12:50,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 13:12:50,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2018-11-23 13:12:51,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 13:12:51,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 13:12:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2018-11-23 13:12:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 13:12:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 16 transitions. [2018-11-23 13:12:51,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 16 transitions. [2018-11-23 13:12:51,157 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 13:12:51,157 INFO L225 Difference]: With dead ends: 15 [2018-11-23 13:12:51,157 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 13:12:51,158 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-23 13:12:51,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 13:12:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 13:12:51,159 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 13:12:51,160 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 13:12:51,160 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 13:12:51,160 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 13:12:51,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:12:51,160 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 13:12:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:12:51,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:12:51,161 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:12:51,161 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 13:12:51,161 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 13:12:51,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:12:51,161 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 13:12:51,162 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:12:51,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:12:51,162 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 13:12:51,162 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 13:12:51,162 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 13:12:51,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 13:12:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 13:12:51,163 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-11-23 13:12:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 13:12:51,163 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:12:51,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 13:12:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:12:51,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 13:12:51,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 13:12:51,331 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:12:51,331 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:12:51,332 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:12:51,332 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 13:12:51,332 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 13:12:51,332 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 13:12:51,332 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 13:12:51,333 INFO L444 ceAbstractionStarter]: At program point L32(lines 25 53) the Hoare annotation is: (or (<= (+ main_~main__x~0 2) main_~main__y~0) (<= (+ main_~main__x~0 50) 0)) [2018-11-23 13:12:51,333 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 55) the Hoare annotation is: true [2018-11-23 13:12:51,333 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 55) no Hoare annotation was computed. [2018-11-23 13:12:51,333 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 53) no Hoare annotation was computed. [2018-11-23 13:12:51,333 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 54) no Hoare annotation was computed. [2018-11-23 13:12:51,333 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 55) no Hoare annotation was computed. [2018-11-23 13:12:51,333 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 13:12:51,334 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2018-11-23 13:12:51,334 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-11-23 13:12:51,335 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 13:12:51,335 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-23 13:12:51,336 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-23 13:12:51,337 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 13:12:51,338 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2018-11-23 13:12:51,338 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2018-11-23 13:12:51,338 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2018-11-23 13:12:51,338 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2018-11-23 13:12:51,338 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2018-11-23 13:12:51,338 INFO L163 areAnnotationChecker]: CFG has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 13:12:51,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:12:51 BoogieIcfgContainer [2018-11-23 13:12:51,347 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 13:12:51,347 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:12:51,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:12:51,348 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:12:51,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:12:48" (3/4) ... [2018-11-23 13:12:51,352 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 13:12:51,357 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 13:12:51,358 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 13:12:51,363 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-23 13:12:51,363 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 13:12:51,413 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-lit/gsv2008_true-unreach-call.c.i.v+cfa-reducer.c-witness.graphml [2018-11-23 13:12:51,413 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:12:51,414 INFO L168 Benchmark]: Toolchain (without parser) took 3453.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -653.9 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2018-11-23 13:12:51,416 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:12:51,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-23 13:12:51,418 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:12:51,419 INFO L168 Benchmark]: Boogie Preprocessor took 18.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:12:51,419 INFO L168 Benchmark]: RCFGBuilder took 558.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -778.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2018-11-23 13:12:51,420 INFO L168 Benchmark]: TraceAbstraction took 2465.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. [2018-11-23 13:12:51,421 INFO L168 Benchmark]: Witness Printer took 65.68 ms. Allocated memory is still 2.3 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-23 13:12:51,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 320.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 19.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 558.19 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -778.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2465.35 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 113.7 MB). Peak memory consumption was 113.7 MB. Max. memory is 7.1 GB. * Witness Printer took 65.68 ms. Allocated memory is still 2.3 GB. Free memory is still 2.1 GB. There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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: 25]: Loop Invariant Derived loop invariant: main__x + 2 <= main__y || main__x + 50 <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 1 error locations. SAFE Result, 2.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 6 SDslu, 29 SDs, 0 SdLazy, 16 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 15 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 726 SizeOfPredicates, 4 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...