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_Bitvector.epf -i ../../../trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:29:08,966 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:29:08,968 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:29:08,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:29:08,981 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:29:08,982 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:29:08,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:29:08,985 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:29:08,987 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:29:08,988 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:29:08,989 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:29:08,989 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:29:08,990 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:29:08,991 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:29:08,992 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:29:08,993 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:29:08,994 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:29:08,996 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:29:08,998 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:29:09,000 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:29:09,001 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:29:09,003 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:29:09,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:29:09,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:29:09,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:29:09,007 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:29:09,008 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:29:09,009 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:29:09,010 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:29:09,011 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:29:09,012 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:29:09,012 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:29:09,013 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:29:09,013 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:29:09,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:29:09,015 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:29:09,015 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-23 11:29:09,031 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:29:09,032 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:29:09,032 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:29:09,033 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:29:09,033 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:29:09,034 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:29:09,034 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:29:09,034 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:29:09,034 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:29:09,034 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:29:09,035 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:29:09,035 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:29:09,035 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:29:09,035 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:29:09,035 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:29:09,036 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:29:09,036 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:29:09,036 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:29:09,036 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:29:09,036 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:29:09,037 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:29:09,037 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:29:09,037 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:29:09,037 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:29:09,037 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:29:09,038 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:29:09,038 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:29:09,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:29:09,038 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:29:09,038 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:29:09,039 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:29:09,039 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:29:09,039 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:29:09,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:29:09,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:29:09,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:29:09,103 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:29:09,103 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:29:09,104 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i [2018-11-23 11:29:09,164 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5581c48c3/608d94788c694f9e83ded332692fc294/FLAGc30143462 [2018-11-23 11:29:09,601 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:29:09,602 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/const_true-unreach-call1.i [2018-11-23 11:29:09,608 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5581c48c3/608d94788c694f9e83ded332692fc294/FLAGc30143462 [2018-11-23 11:29:09,978 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5581c48c3/608d94788c694f9e83ded332692fc294 [2018-11-23 11:29:09,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:29:09,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:29:09,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:29:09,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:29:09,996 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:29:09,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:29:09" (1/1) ... [2018-11-23 11:29:10,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2193ab3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:09, skipping insertion in model container [2018-11-23 11:29:10,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:29:09" (1/1) ... [2018-11-23 11:29:10,013 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:29:10,039 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:29:10,282 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:29:10,289 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:29:10,309 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:29:10,329 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:29:10,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10 WrapperNode [2018-11-23 11:29:10,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:29:10,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:29:10,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:29:10,331 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:29:10,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:29:10,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:29:10,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:29:10,360 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:29:10,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (1/1) ... [2018-11-23 11:29:10,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:29:10,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:29:10,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:29:10,399 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:29:10,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (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 11:29:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:29:10,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:29:10,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:29:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:29:10,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 11:29:10,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 11:29:10,963 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:29:10,963 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-23 11:29:10,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:29:10 BoogieIcfgContainer [2018-11-23 11:29:10,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:29:10,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:29:10,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:29:10,968 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:29:10,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:29:09" (1/3) ... [2018-11-23 11:29:10,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1185b91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:29:10, skipping insertion in model container [2018-11-23 11:29:10,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:29:10" (2/3) ... [2018-11-23 11:29:10,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1185b91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:29:10, skipping insertion in model container [2018-11-23 11:29:10,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:29:10" (3/3) ... [2018-11-23 11:29:10,972 INFO L112 eAbstractionObserver]: Analyzing ICFG const_true-unreach-call1.i [2018-11-23 11:29:10,981 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:29:10,989 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:29:11,010 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:29:11,047 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:29:11,047 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:29:11,048 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:29:11,048 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:29:11,048 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:29:11,048 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:29:11,048 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:29:11,049 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:29:11,049 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:29:11,066 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-23 11:29:11,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 11:29:11,072 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:29:11,074 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:29:11,076 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:29:11,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:29:11,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2018-11-23 11:29:11,087 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:29:11,088 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:29:11,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:29:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:29:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:29:11,154 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:29:11,270 INFO L256 TraceCheckUtils]: 0: Hoare triple {20#true} call ULTIMATE.init(); {20#true} is VALID [2018-11-23 11:29:11,275 INFO L273 TraceCheckUtils]: 1: Hoare triple {20#true} assume true; {20#true} is VALID [2018-11-23 11:29:11,276 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {20#true} {20#true} #31#return; {20#true} is VALID [2018-11-23 11:29:11,276 INFO L256 TraceCheckUtils]: 3: Hoare triple {20#true} call #t~ret1 := main(); {20#true} is VALID [2018-11-23 11:29:11,290 INFO L273 TraceCheckUtils]: 4: Hoare triple {20#true} ~x~0 := 1bv32;~y~0 := 0bv32; {37#(= main_~y~0 (_ bv0 32))} is VALID [2018-11-23 11:29:11,291 INFO L273 TraceCheckUtils]: 5: Hoare triple {37#(= main_~y~0 (_ bv0 32))} assume !~bvult32(~y~0, 1024bv32); {21#false} is VALID [2018-11-23 11:29:11,292 INFO L256 TraceCheckUtils]: 6: Hoare triple {21#false} call __VERIFIER_assert((if 0bv32 == ~x~0 then 1bv32 else 0bv32)); {21#false} is VALID [2018-11-23 11:29:11,292 INFO L273 TraceCheckUtils]: 7: Hoare triple {21#false} ~cond := #in~cond; {21#false} is VALID [2018-11-23 11:29:11,292 INFO L273 TraceCheckUtils]: 8: Hoare triple {21#false} assume 0bv32 == ~cond; {21#false} is VALID [2018-11-23 11:29:11,293 INFO L273 TraceCheckUtils]: 9: Hoare triple {21#false} assume !false; {21#false} is VALID [2018-11-23 11:29:11,295 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 11:29:11,296 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (2)] Exception during sending of exit command (exit): Broken pipe [2018-11-23 11:29:11,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:29:11,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 11:29:11,309 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 11:29:11,312 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:29:11,316 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-23 11:29:11,358 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:29:11,358 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 11:29:11,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 11:29:11,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 11:29:11,371 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2018-11-23 11:29:11,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:29:11,544 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2018-11-23 11:29:11,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 11:29:11,545 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-23 11:29:11,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:29:11,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 11:29:11,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2018-11-23 11:29:11,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 11:29:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2018-11-23 11:29:11,564 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 34 transitions. [2018-11-23 11:29:11,875 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:29:11,885 INFO L225 Difference]: With dead ends: 29 [2018-11-23 11:29:11,885 INFO L226 Difference]: Without dead ends: 12 [2018-11-23 11:29:11,889 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 11:29:11,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-23 11:29:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-23 11:29:11,948 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:29:11,948 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand 12 states. [2018-11-23 11:29:11,949 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2018-11-23 11:29:11,949 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2018-11-23 11:29:11,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:29:11,952 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-23 11:29:11,953 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-23 11:29:11,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:29:11,953 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:29:11,953 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2018-11-23 11:29:11,953 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2018-11-23 11:29:11,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:29:11,956 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-23 11:29:11,957 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-23 11:29:11,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:29:11,957 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:29:11,957 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:29:11,958 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:29:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-23 11:29:11,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-23 11:29:11,961 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-23 11:29:11,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:29:11,962 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-23 11:29:11,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 11:29:11,962 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-23 11:29:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-23 11:29:11,963 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:29:11,963 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:29:11,963 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:29:11,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:29:11,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2018-11-23 11:29:11,964 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:29:11,964 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:29:11,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:29:11,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:29:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:29:12,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:29:12,122 INFO L256 TraceCheckUtils]: 0: Hoare triple {135#true} call ULTIMATE.init(); {135#true} is VALID [2018-11-23 11:29:12,122 INFO L273 TraceCheckUtils]: 1: Hoare triple {135#true} assume true; {135#true} is VALID [2018-11-23 11:29:12,122 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {135#true} {135#true} #31#return; {135#true} is VALID [2018-11-23 11:29:12,123 INFO L256 TraceCheckUtils]: 3: Hoare triple {135#true} call #t~ret1 := main(); {135#true} is VALID [2018-11-23 11:29:12,123 INFO L273 TraceCheckUtils]: 4: Hoare triple {135#true} ~x~0 := 1bv32;~y~0 := 0bv32; {135#true} is VALID [2018-11-23 11:29:12,142 INFO L273 TraceCheckUtils]: 5: Hoare triple {135#true} assume !!~bvult32(~y~0, 1024bv32);~x~0 := 0bv32;#t~post0 := ~y~0;~y~0 := ~bvadd32(1bv32, #t~post0);havoc #t~post0; {155#(= main_~x~0 (_ bv0 32))} is VALID [2018-11-23 11:29:12,143 INFO L273 TraceCheckUtils]: 6: Hoare triple {155#(= main_~x~0 (_ bv0 32))} assume !~bvult32(~y~0, 1024bv32); {155#(= main_~x~0 (_ bv0 32))} is VALID [2018-11-23 11:29:12,146 INFO L256 TraceCheckUtils]: 7: Hoare triple {155#(= main_~x~0 (_ bv0 32))} call __VERIFIER_assert((if 0bv32 == ~x~0 then 1bv32 else 0bv32)); {162#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:29:12,147 INFO L273 TraceCheckUtils]: 8: Hoare triple {162#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} ~cond := #in~cond; {166#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:29:12,150 INFO L273 TraceCheckUtils]: 9: Hoare triple {166#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~cond; {136#false} is VALID [2018-11-23 11:29:12,150 INFO L273 TraceCheckUtils]: 10: Hoare triple {136#false} assume !false; {136#false} is VALID [2018-11-23 11:29:12,152 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 11:29:12,153 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:29:12,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:29:12,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 11:29:12,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-23 11:29:12,157 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:29:12,157 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-23 11:29:12,189 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 11:29:12,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 11:29:12,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 11:29:12,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 11:29:12,190 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-11-23 11:29:12,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:29:12,394 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-23 11:29:12,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 11:29:12,395 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-23 11:29:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:29:12,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 11:29:12,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2018-11-23 11:29:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 11:29:12,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2018-11-23 11:29:12,399 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 12 transitions. [2018-11-23 11:29:12,427 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:29:12,427 INFO L225 Difference]: With dead ends: 12 [2018-11-23 11:29:12,428 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 11:29:12,429 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-23 11:29:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 11:29:12,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 11:29:12,429 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:29:12,429 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-23 11:29:12,430 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:29:12,430 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:29:12,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:29:12,430 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:29:12,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:29:12,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:29:12,431 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:29:12,431 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-23 11:29:12,431 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-23 11:29:12,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:29:12,432 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 11:29:12,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:29:12,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:29:12,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:29:12,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:29:12,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:29:12,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 11:29:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 11:29:12,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-23 11:29:12,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:29:12,434 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 11:29:12,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 11:29:12,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 11:29:12,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:29:12,440 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 11:29:12,794 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 11:29:12,794 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:29:12,794 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 11:29:12,794 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 11:29:12,795 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 11:29:12,795 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 11:29:12,795 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 8 16) the Hoare annotation is: true [2018-11-23 11:29:12,795 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 8 16) no Hoare annotation was computed. [2018-11-23 11:29:12,795 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 8 16) no Hoare annotation was computed. [2018-11-23 11:29:12,795 INFO L444 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: (or (= main_~x~0 (_ bv0 32)) (= main_~y~0 (_ bv0 32))) [2018-11-23 11:29:12,796 INFO L444 ceAbstractionStarter]: At program point L11-3(lines 11 14) the Hoare annotation is: (= main_~x~0 (_ bv0 32)) [2018-11-23 11:29:12,796 INFO L448 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2018-11-23 11:29:12,796 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2018-11-23 11:29:12,796 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2018-11-23 11:29:12,796 INFO L448 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-11-23 11:29:12,796 INFO L448 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2018-11-23 11:29:12,797 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-11-23 11:29:12,798 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:29:12,801 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-23 11:29:12,801 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-23 11:29:12,802 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:29:12,806 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-23 11:29:12,806 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-23 11:29:12,806 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-23 11:29:12,806 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:29:12,807 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 11:29:12,807 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-23 11:29:12,807 WARN L170 areAnnotationChecker]: L3-2 has no Hoare annotation [2018-11-23 11:29:12,807 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-23 11:29:12,807 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-23 11:29:12,808 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-23 11:29:12,808 INFO L163 areAnnotationChecker]: CFG has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-23 11:29:12,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:29:12 BoogieIcfgContainer [2018-11-23 11:29:12,817 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 11:29:12,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 11:29:12,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 11:29:12,818 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 11:29:12,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:29:10" (3/4) ... [2018-11-23 11:29:12,822 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 11:29:12,828 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 11:29:12,828 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 11:29:12,829 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 11:29:12,833 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-23 11:29:12,833 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 11:29:12,833 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 11:29:12,873 INFO L145 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loop-acceleration/const_true-unreach-call1.i-witness.graphml [2018-11-23 11:29:12,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 11:29:12,875 INFO L168 Benchmark]: Toolchain (without parser) took 2885.24 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -662.2 MB). Peak memory consumption was 57.6 MB. Max. memory is 7.1 GB. [2018-11-23 11:29:12,877 INFO L168 Benchmark]: CDTParser took 0.26 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 11:29:12,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.49 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 11:29:12,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.14 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 11:29:12,879 INFO L168 Benchmark]: Boogie Preprocessor took 38.84 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 11:29:12,880 INFO L168 Benchmark]: RCFGBuilder took 565.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-23 11:29:12,881 INFO L168 Benchmark]: TraceAbstraction took 1851.86 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: 83.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2018-11-23 11:29:12,882 INFO L168 Benchmark]: Witness Printer took 56.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2018-11-23 11:29:12,887 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 0.26 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 338.49 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 28.14 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 38.84 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 565.67 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -769.8 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1851.86 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: 83.7 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * Witness Printer took 56.63 ms. Allocated memory is still 2.3 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 11]: Loop Invariant Derived loop invariant: x == 0bv32 || y == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 1 SDslu, 36 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 15 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 319 SizeOfPredicates, 3 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...