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-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-61f4311 [2018-11-23 11:40:14,945 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 11:40:14,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 11:40:14,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 11:40:14,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 11:40:14,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 11:40:14,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 11:40:14,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 11:40:14,965 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 11:40:14,966 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 11:40:14,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 11:40:14,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 11:40:14,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 11:40:14,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 11:40:14,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 11:40:14,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 11:40:14,972 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 11:40:14,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 11:40:14,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 11:40:14,977 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 11:40:14,978 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 11:40:14,980 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 11:40:14,982 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 11:40:14,982 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 11:40:14,983 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 11:40:14,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 11:40:14,985 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 11:40:14,985 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 11:40:14,986 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 11:40:14,987 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 11:40:14,987 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 11:40:14,988 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 11:40:14,988 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 11:40:14,989 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 11:40:14,990 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 11:40:14,990 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 11:40:14,991 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 11:40:15,006 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 11:40:15,006 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 11:40:15,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 11:40:15,007 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 11:40:15,008 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 11:40:15,008 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 11:40:15,008 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 11:40:15,008 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 11:40:15,009 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 11:40:15,009 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 11:40:15,009 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 11:40:15,009 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 11:40:15,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 11:40:15,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 11:40:15,010 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 11:40:15,010 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 11:40:15,010 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 11:40:15,010 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 11:40:15,010 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 11:40:15,011 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 11:40:15,011 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 11:40:15,011 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 11:40:15,011 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 11:40:15,011 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 11:40:15,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 11:40:15,012 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 11:40:15,012 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 11:40:15,012 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 11:40:15,012 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-23 11:40:15,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 11:40:15,013 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 11:40:15,013 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 11:40:15,013 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 11:40:15,059 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 11:40:15,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 11:40:15,085 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 11:40:15,086 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 11:40:15,087 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 11:40:15,088 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-23 11:40:15,165 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/294c9a0f7/dcdea8e31e5f4f8991e5da2d2fc3ad1d/FLAG9f8fb9946 [2018-11-23 11:40:15,661 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 11:40:15,662 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-23 11:40:15,668 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/294c9a0f7/dcdea8e31e5f4f8991e5da2d2fc3ad1d/FLAG9f8fb9946 [2018-11-23 11:40:16,009 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/294c9a0f7/dcdea8e31e5f4f8991e5da2d2fc3ad1d [2018-11-23 11:40:16,019 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 11:40:16,021 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 11:40:16,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 11:40:16,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 11:40:16,027 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 11:40:16,028 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d00cf4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16, skipping insertion in model container [2018-11-23 11:40:16,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 11:40:16,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 11:40:16,285 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:40:16,293 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 11:40:16,318 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 11:40:16,335 INFO L195 MainTranslator]: Completed translation [2018-11-23 11:40:16,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16 WrapperNode [2018-11-23 11:40:16,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 11:40:16,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 11:40:16,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 11:40:16,338 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 11:40:16,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 11:40:16,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 11:40:16,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 11:40:16,370 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 11:40:16,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (1/1) ... [2018-11-23 11:40:16,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 11:40:16,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 11:40:16,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 11:40:16,412 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 11:40:16,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (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 11:40:16,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 11:40:16,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 11:40:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 11:40:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 11:40:16,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 11:40:16,572 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 11:40:17,049 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 11:40:17,049 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 11:40:17,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:17 BoogieIcfgContainer [2018-11-23 11:40:17,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 11:40:17,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 11:40:17,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 11:40:17,055 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 11:40:17,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:40:16" (1/3) ... [2018-11-23 11:40:17,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5f2183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:17, skipping insertion in model container [2018-11-23 11:40:17,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:40:16" (2/3) ... [2018-11-23 11:40:17,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e5f2183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:40:17, skipping insertion in model container [2018-11-23 11:40:17,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:40:17" (3/3) ... [2018-11-23 11:40:17,059 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-23 11:40:17,069 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 11:40:17,077 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 11:40:17,096 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 11:40:17,128 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 11:40:17,129 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 11:40:17,129 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 11:40:17,129 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 11:40:17,130 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 11:40:17,130 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 11:40:17,130 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 11:40:17,130 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 11:40:17,130 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 11:40:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 11:40:17,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 11:40:17,157 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:17,158 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:40:17,161 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:17,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:17,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1883805102, now seen corresponding path program 1 times [2018-11-23 11:40:17,172 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:40:17,173 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 11:40:17,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:40:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:17,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:40:17,904 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-23 11:40:17,907 INFO L273 TraceCheckUtils]: 1: Hoare triple {21#true} ~__return_main~0 := 0bv32;~__tmp_55_0~0 := 0bv32;~__return_65~0 := 0bv32; {21#true} is VALID [2018-11-23 11:40:17,908 INFO L273 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-23 11:40:17,908 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #33#return; {21#true} is VALID [2018-11-23 11:40:17,908 INFO L256 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret2 := main(); {21#true} is VALID [2018-11-23 11:40:17,909 INFO L273 TraceCheckUtils]: 5: Hoare triple {21#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := 4294967246bv32;~main__y~0 := #t~nondet1;havoc #t~nondet1; {41#(= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32))} is VALID [2018-11-23 11:40:17,912 INFO L273 TraceCheckUtils]: 6: Hoare triple {41#(= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32))} assume !!~bvslt32(4294966296bv32, ~main__y~0); {45#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0))} is VALID [2018-11-23 11:40:17,919 INFO L273 TraceCheckUtils]: 7: Hoare triple {45#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0))} assume !!~bvslt32(~main__y~0, 1000000bv32); {49#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0) (bvslt main_~main__y~0 (_ bv1000000 32)))} is VALID [2018-11-23 11:40:17,963 INFO L273 TraceCheckUtils]: 8: Hoare triple {49#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0) (bvslt main_~main__y~0 (_ bv1000000 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {53#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:17,964 INFO L273 TraceCheckUtils]: 9: Hoare triple {53#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {53#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:17,967 INFO L273 TraceCheckUtils]: 10: Hoare triple {53#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} assume !~bvslt32(~main__x~0, 0bv32);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvsgt32(~main__y~0, 0bv32) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {60#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:40:17,968 INFO L273 TraceCheckUtils]: 11: Hoare triple {60#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~0; {22#false} is VALID [2018-11-23 11:40:17,968 INFO L273 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-23 11:40:17,973 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 11:40:17,974 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 11:40:17,978 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 11:40:17,978 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 11:40:17,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-23 11:40:17,987 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:40:17,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-23 11:40:18,093 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:40:18,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 11:40:18,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 11:40:18,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-23 11:40:18,103 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-23 11:40:19,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:19,035 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-23 11:40:19,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 11:40:19,035 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-23 11:40:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:40:19,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 11:40:19,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2018-11-23 11:40:19,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 11:40:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2018-11-23 11:40:19,056 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 38 transitions. [2018-11-23 11:40:19,439 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:40:19,455 INFO L225 Difference]: With dead ends: 33 [2018-11-23 11:40:19,455 INFO L226 Difference]: Without dead ends: 16 [2018-11-23 11:40:19,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-23 11:40:19,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-23 11:40:19,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-23 11:40:19,500 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:40:19,500 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2018-11-23 11:40:19,501 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-23 11:40:19,501 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-23 11:40:19,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:19,504 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-23 11:40:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-23 11:40:19,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:40:19,505 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:40:19,506 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-23 11:40:19,506 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-23 11:40:19,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:19,509 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-23 11:40:19,509 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-23 11:40:19,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:40:19,510 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:40:19,510 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:40:19,511 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:40:19,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-23 11:40:19,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-23 11:40:19,516 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-23 11:40:19,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:40:19,517 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-23 11:40:19,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 11:40:19,517 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-23 11:40:19,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-23 11:40:19,520 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:19,520 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:40:19,520 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:19,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:19,521 INFO L82 PathProgramCache]: Analyzing trace with hash -2141584271, now seen corresponding path program 1 times [2018-11-23 11:40:19,521 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:40:19,521 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 11:40:19,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 11:40:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:19,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:40:19,949 INFO L256 TraceCheckUtils]: 0: Hoare triple {161#true} call ULTIMATE.init(); {161#true} is VALID [2018-11-23 11:40:19,950 INFO L273 TraceCheckUtils]: 1: Hoare triple {161#true} ~__return_main~0 := 0bv32;~__tmp_55_0~0 := 0bv32;~__return_65~0 := 0bv32; {161#true} is VALID [2018-11-23 11:40:19,950 INFO L273 TraceCheckUtils]: 2: Hoare triple {161#true} assume true; {161#true} is VALID [2018-11-23 11:40:19,951 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {161#true} {161#true} #33#return; {161#true} is VALID [2018-11-23 11:40:19,951 INFO L256 TraceCheckUtils]: 4: Hoare triple {161#true} call #t~ret2 := main(); {161#true} is VALID [2018-11-23 11:40:19,958 INFO L273 TraceCheckUtils]: 5: Hoare triple {161#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := 4294967246bv32;~main__y~0 := #t~nondet1;havoc #t~nondet1; {181#(= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32))} is VALID [2018-11-23 11:40:19,959 INFO L273 TraceCheckUtils]: 6: Hoare triple {181#(= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32))} assume !!~bvslt32(4294966296bv32, ~main__y~0); {185#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0))} is VALID [2018-11-23 11:40:19,961 INFO L273 TraceCheckUtils]: 7: Hoare triple {185#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0))} assume !!~bvslt32(~main__y~0, 1000000bv32); {189#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0) (bvslt main_~main__y~0 (_ bv1000000 32)))} is VALID [2018-11-23 11:40:20,025 INFO L273 TraceCheckUtils]: 8: Hoare triple {189#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0) (bvslt main_~main__y~0 (_ bv1000000 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {193#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:20,026 INFO L273 TraceCheckUtils]: 9: Hoare triple {193#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {193#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:20,095 INFO L273 TraceCheckUtils]: 10: Hoare triple {193#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {200#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967244 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:20,096 INFO L273 TraceCheckUtils]: 11: Hoare triple {200#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967244 32)) (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {200#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967244 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:20,100 INFO L273 TraceCheckUtils]: 12: Hoare triple {200#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967244 32)) (_ bv0 32)))} assume !~bvslt32(~main__x~0, 0bv32);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvsgt32(~main__y~0, 0bv32) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {207#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:40:20,101 INFO L273 TraceCheckUtils]: 13: Hoare triple {207#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~0; {162#false} is VALID [2018-11-23 11:40:20,101 INFO L273 TraceCheckUtils]: 14: Hoare triple {162#false} assume !false; {162#false} is VALID [2018-11-23 11:40:20,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:40:20,103 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 11:40:20,793 INFO L273 TraceCheckUtils]: 14: Hoare triple {162#false} assume !false; {162#false} is VALID [2018-11-23 11:40:20,794 INFO L273 TraceCheckUtils]: 13: Hoare triple {217#(not (= main_~__VERIFIER_assert__cond~0 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~0; {162#false} is VALID [2018-11-23 11:40:20,796 INFO L273 TraceCheckUtils]: 12: Hoare triple {221#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} assume !~bvslt32(~main__x~0, 0bv32);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvsgt32(~main__y~0, 0bv32) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {217#(not (= main_~__VERIFIER_assert__cond~0 (_ bv0 32)))} is VALID [2018-11-23 11:40:20,796 INFO L273 TraceCheckUtils]: 11: Hoare triple {221#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {221#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} is VALID [2018-11-23 11:40:20,798 INFO L273 TraceCheckUtils]: 10: Hoare triple {228#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {221#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} is VALID [2018-11-23 11:40:20,799 INFO L273 TraceCheckUtils]: 9: Hoare triple {228#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {228#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:20,974 INFO L273 TraceCheckUtils]: 8: Hoare triple {235#(or (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {228#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:20,975 INFO L273 TraceCheckUtils]: 7: Hoare triple {239#(or (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)) (not (bvslt main_~main__y~0 (_ bv1000000 32))))} assume !!~bvslt32(~main__y~0, 1000000bv32); {235#(or (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:20,979 INFO L273 TraceCheckUtils]: 6: Hoare triple {243#(forall ((main_~main__y~0 (_ BitVec 32))) (or (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (_ bv4294966296 32) main_~main__y~0)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)) (not (bvslt main_~main__y~0 (_ bv1000000 32)))))} assume !!~bvslt32(4294966296bv32, ~main__y~0); {239#(or (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)) (not (bvslt main_~main__y~0 (_ bv1000000 32))))} is VALID [2018-11-23 11:40:20,983 INFO L273 TraceCheckUtils]: 5: Hoare triple {161#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := 4294967246bv32;~main__y~0 := #t~nondet1;havoc #t~nondet1; {243#(forall ((main_~main__y~0 (_ BitVec 32))) (or (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (_ bv4294966296 32) main_~main__y~0)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)) (not (bvslt main_~main__y~0 (_ bv1000000 32)))))} is VALID [2018-11-23 11:40:20,983 INFO L256 TraceCheckUtils]: 4: Hoare triple {161#true} call #t~ret2 := main(); {161#true} is VALID [2018-11-23 11:40:20,984 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {161#true} {161#true} #33#return; {161#true} is VALID [2018-11-23 11:40:20,984 INFO L273 TraceCheckUtils]: 2: Hoare triple {161#true} assume true; {161#true} is VALID [2018-11-23 11:40:20,985 INFO L273 TraceCheckUtils]: 1: Hoare triple {161#true} ~__return_main~0 := 0bv32;~__tmp_55_0~0 := 0bv32;~__return_65~0 := 0bv32; {161#true} is VALID [2018-11-23 11:40:20,985 INFO L256 TraceCheckUtils]: 0: Hoare triple {161#true} call ULTIMATE.init(); {161#true} is VALID [2018-11-23 11:40:20,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:40:20,988 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 11:40:20,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-23 11:40:20,990 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2018-11-23 11:40:20,991 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:40:20,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-23 11:40:21,334 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:40:21,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-23 11:40:21,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-23 11:40:21,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-23 11:40:21,335 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 14 states. [2018-11-23 11:40:22,241 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2018-11-23 11:40:23,255 WARN L180 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2018-11-23 11:40:23,670 WARN L180 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2018-11-23 11:40:23,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:23,965 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-11-23 11:40:23,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 11:40:23,966 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2018-11-23 11:40:23,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:40:23,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 11:40:23,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 32 transitions. [2018-11-23 11:40:23,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-23 11:40:23,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 32 transitions. [2018-11-23 11:40:23,972 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 32 transitions. [2018-11-23 11:40:24,353 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-23 11:40:24,355 INFO L225 Difference]: With dead ends: 29 [2018-11-23 11:40:24,355 INFO L226 Difference]: Without dead ends: 24 [2018-11-23 11:40:24,357 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2018-11-23 11:40:24,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-23 11:40:24,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-23 11:40:24,370 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:40:24,370 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand 24 states. [2018-11-23 11:40:24,370 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2018-11-23 11:40:24,370 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2018-11-23 11:40:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:24,373 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-23 11:40:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-23 11:40:24,374 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:40:24,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:40:24,375 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 24 states. [2018-11-23 11:40:24,375 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 24 states. [2018-11-23 11:40:24,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:40:24,377 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-11-23 11:40:24,377 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-23 11:40:24,378 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:40:24,378 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:40:24,378 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:40:24,379 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:40:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-23 11:40:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-23 11:40:24,381 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 15 [2018-11-23 11:40:24,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:40:24,381 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-23 11:40:24,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-23 11:40:24,382 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-23 11:40:24,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-23 11:40:24,382 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:40:24,383 INFO L402 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:40:24,383 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:40:24,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:40:24,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1992609795, now seen corresponding path program 2 times [2018-11-23 11:40:24,384 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:40:24,384 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:40:24,401 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-23 11:40:24,487 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-23 11:40:24,488 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 11:40:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:40:24,524 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:40:25,447 INFO L256 TraceCheckUtils]: 0: Hoare triple {397#true} call ULTIMATE.init(); {397#true} is VALID [2018-11-23 11:40:25,448 INFO L273 TraceCheckUtils]: 1: Hoare triple {397#true} ~__return_main~0 := 0bv32;~__tmp_55_0~0 := 0bv32;~__return_65~0 := 0bv32; {397#true} is VALID [2018-11-23 11:40:25,448 INFO L273 TraceCheckUtils]: 2: Hoare triple {397#true} assume true; {397#true} is VALID [2018-11-23 11:40:25,449 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {397#true} {397#true} #33#return; {397#true} is VALID [2018-11-23 11:40:25,449 INFO L256 TraceCheckUtils]: 4: Hoare triple {397#true} call #t~ret2 := main(); {397#true} is VALID [2018-11-23 11:40:25,452 INFO L273 TraceCheckUtils]: 5: Hoare triple {397#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := 4294967246bv32;~main__y~0 := #t~nondet1;havoc #t~nondet1; {417#(= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32))} is VALID [2018-11-23 11:40:25,452 INFO L273 TraceCheckUtils]: 6: Hoare triple {417#(= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32))} assume !!~bvslt32(4294966296bv32, ~main__y~0); {421#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0))} is VALID [2018-11-23 11:40:25,453 INFO L273 TraceCheckUtils]: 7: Hoare triple {421#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0))} assume !!~bvslt32(~main__y~0, 1000000bv32); {425#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0) (bvslt main_~main__y~0 (_ bv1000000 32)))} is VALID [2018-11-23 11:40:25,499 INFO L273 TraceCheckUtils]: 8: Hoare triple {425#(and (= (bvadd main_~main__x~0 (_ bv50 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) main_~main__y~0) (bvslt main_~main__y~0 (_ bv1000000 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {429#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:25,500 INFO L273 TraceCheckUtils]: 9: Hoare triple {429#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {429#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:25,566 INFO L273 TraceCheckUtils]: 10: Hoare triple {429#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967295 32))) (bvslt (bvadd main_~main__y~0 (_ bv4294967295 32)) (_ bv1000000 32)) (= (bvadd main_~main__y~0 (_ bv4294967245 32)) main_~main__x~0))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {436#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967294 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:25,567 INFO L273 TraceCheckUtils]: 11: Hoare triple {436#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967294 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {436#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967294 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:25,680 INFO L273 TraceCheckUtils]: 12: Hoare triple {436#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967294 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967294 32))) (= (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967243 32)) main_~main__x~0))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {443#(and (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967241 32)) (_ bv0 32)) (= (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967240 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967293 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967293 32))))} is VALID [2018-11-23 11:40:25,681 INFO L273 TraceCheckUtils]: 13: Hoare triple {443#(and (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967241 32)) (_ bv0 32)) (= (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967240 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967293 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967293 32))))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {443#(and (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967241 32)) (_ bv0 32)) (= (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967240 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967293 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967293 32))))} is VALID [2018-11-23 11:40:25,860 INFO L273 TraceCheckUtils]: 14: Hoare triple {443#(and (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) (_ bv4294967241 32)) (_ bv0 32)) (= (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967240 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967293 32)) (_ bv1000000 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967293 32))))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {450#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967292 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967237 32)) (_ bv0 32)) (bvslt (bvadd main_~main__y~0 (_ bv4294967292 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967236 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:25,861 INFO L273 TraceCheckUtils]: 15: Hoare triple {450#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967292 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967237 32)) (_ bv0 32)) (bvslt (bvadd main_~main__y~0 (_ bv4294967292 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967236 32)) main_~main__x~0))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {450#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967292 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967237 32)) (_ bv0 32)) (bvslt (bvadd main_~main__y~0 (_ bv4294967292 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967236 32)) main_~main__x~0))} is VALID [2018-11-23 11:40:26,063 INFO L273 TraceCheckUtils]: 16: Hoare triple {450#(and (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967292 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) (_ bv4294967237 32)) (_ bv0 32)) (bvslt (bvadd main_~main__y~0 (_ bv4294967292 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967236 32)) main_~main__x~0))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {457#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967291 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967231 32)) main_~main__x~0) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967291 32))) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967232 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:26,064 INFO L273 TraceCheckUtils]: 17: Hoare triple {457#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967291 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967231 32)) main_~main__x~0) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967291 32))) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967232 32)) (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {457#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967291 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967231 32)) main_~main__x~0) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967291 32))) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967232 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:26,266 INFO L273 TraceCheckUtils]: 18: Hoare triple {457#(and (bvslt (bvadd main_~main__y~0 (_ bv4294967291 32)) (_ bv1000000 32)) (= (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967231 32)) main_~main__x~0) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967291 32))) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) (_ bv4294967232 32)) (_ bv0 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {464#(and (= (bvadd (bvmul (_ bv6 32) main_~main__y~0) (_ bv4294967225 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967290 32)) (_ bv1000000 32)) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967226 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967290 32))))} is VALID [2018-11-23 11:40:26,268 INFO L273 TraceCheckUtils]: 19: Hoare triple {464#(and (= (bvadd (bvmul (_ bv6 32) main_~main__y~0) (_ bv4294967225 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967290 32)) (_ bv1000000 32)) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967226 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967290 32))))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {464#(and (= (bvadd (bvmul (_ bv6 32) main_~main__y~0) (_ bv4294967225 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967290 32)) (_ bv1000000 32)) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967226 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967290 32))))} is VALID [2018-11-23 11:40:26,273 INFO L273 TraceCheckUtils]: 20: Hoare triple {464#(and (= (bvadd (bvmul (_ bv6 32) main_~main__y~0) (_ bv4294967225 32)) main_~main__x~0) (bvslt (bvadd main_~main__y~0 (_ bv4294967290 32)) (_ bv1000000 32)) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) (_ bv4294967226 32)) (_ bv0 32)) (bvslt (_ bv4294966296 32) (bvadd main_~main__y~0 (_ bv4294967290 32))))} assume !~bvslt32(~main__x~0, 0bv32);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvsgt32(~main__y~0, 0bv32) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {471#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-23 11:40:26,274 INFO L273 TraceCheckUtils]: 21: Hoare triple {471#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~0; {398#false} is VALID [2018-11-23 11:40:26,275 INFO L273 TraceCheckUtils]: 22: Hoare triple {398#false} assume !false; {398#false} is VALID [2018-11-23 11:40:26,280 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:40:26,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 11:40:32,031 WARN L180 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-11-23 11:40:33,400 INFO L273 TraceCheckUtils]: 22: Hoare triple {398#false} assume !false; {398#false} is VALID [2018-11-23 11:40:33,401 INFO L273 TraceCheckUtils]: 21: Hoare triple {481#(not (= main_~__VERIFIER_assert__cond~0 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~0; {398#false} is VALID [2018-11-23 11:40:33,402 INFO L273 TraceCheckUtils]: 20: Hoare triple {485#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} assume !~bvslt32(~main__x~0, 0bv32);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvsgt32(~main__y~0, 0bv32) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {481#(not (= main_~__VERIFIER_assert__cond~0 (_ bv0 32)))} is VALID [2018-11-23 11:40:33,403 INFO L273 TraceCheckUtils]: 19: Hoare triple {485#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {485#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} is VALID [2018-11-23 11:40:33,406 INFO L273 TraceCheckUtils]: 18: Hoare triple {492#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {485#(or (bvsgt main_~main__y~0 (_ bv0 32)) (bvslt main_~main__x~0 (_ bv0 32)))} is VALID [2018-11-23 11:40:33,407 INFO L273 TraceCheckUtils]: 17: Hoare triple {492#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {492#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:33,526 INFO L273 TraceCheckUtils]: 16: Hoare triple {499#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {492#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:33,527 INFO L273 TraceCheckUtils]: 15: Hoare triple {499#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {499#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:35,533 INFO L273 TraceCheckUtils]: 14: Hoare triple {506#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv3 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {499#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv2 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32)))} is UNKNOWN [2018-11-23 11:40:35,534 INFO L273 TraceCheckUtils]: 13: Hoare triple {506#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv3 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {506#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv3 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} is VALID [2018-11-23 11:40:37,556 INFO L273 TraceCheckUtils]: 12: Hoare triple {513#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv4 32)) (_ bv0 32)) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {506#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32)) (bvsgt (bvadd main_~main__y~0 (_ bv3 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} is UNKNOWN [2018-11-23 11:40:37,557 INFO L273 TraceCheckUtils]: 11: Hoare triple {513#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv4 32)) (_ bv0 32)) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {513#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv4 32)) (_ bv0 32)) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} is VALID [2018-11-23 11:40:39,562 INFO L273 TraceCheckUtils]: 10: Hoare triple {520#(or (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv5 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32)))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {513#(or (not (bvslt main_~main__x~0 (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv4 32)) (_ bv0 32)) (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))))} is UNKNOWN [2018-11-23 11:40:39,563 INFO L273 TraceCheckUtils]: 9: Hoare triple {520#(or (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv5 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32)))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {520#(or (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv5 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32)))} is VALID [2018-11-23 11:40:41,569 INFO L273 TraceCheckUtils]: 8: Hoare triple {527#(or (bvslt (bvadd (bvmul (_ bv6 32) main_~main__y~0) main_~main__x~0 (_ bv15 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))))} assume ~bvslt32(~main__x~0, 0bv32);~main__x~0 := ~bvadd32(~main__x~0, ~main__y~0);~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~bvadd32(1bv32, ~main__y~0);~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {520#(or (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv5 32)) (_ bv0 32)) (not (bvslt (bvadd main_~main__y~0 main_~main__x~0) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))) (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32)))} is UNKNOWN [2018-11-23 11:40:41,570 INFO L273 TraceCheckUtils]: 7: Hoare triple {527#(or (bvslt (bvadd (bvmul (_ bv6 32) main_~main__y~0) main_~main__x~0 (_ bv15 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))))} assume !!~bvslt32(~main__y~0, 1000000bv32); {527#(or (bvslt (bvadd (bvmul (_ bv6 32) main_~main__y~0) main_~main__x~0 (_ bv15 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))))} is VALID [2018-11-23 11:40:41,576 INFO L273 TraceCheckUtils]: 6: Hoare triple {534#(forall ((main_~main__y~0 (_ BitVec 32))) (or (bvslt (bvadd (bvmul (_ bv6 32) main_~main__y~0) main_~main__x~0 (_ bv15 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32))) (not (bvslt (_ bv4294966296 32) main_~main__y~0)) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32)))))} assume !!~bvslt32(4294966296bv32, ~main__y~0); {527#(or (bvslt (bvadd (bvmul (_ bv6 32) main_~main__y~0) main_~main__x~0 (_ bv15 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32))))} is VALID [2018-11-23 11:40:41,583 INFO L273 TraceCheckUtils]: 5: Hoare triple {397#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := 4294967246bv32;~main__y~0 := #t~nondet1;havoc #t~nondet1; {534#(forall ((main_~main__y~0 (_ BitVec 32))) (or (bvslt (bvadd (bvmul (_ bv6 32) main_~main__y~0) main_~main__x~0 (_ bv15 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv3 32) main_~main__y~0) main_~main__x~0 (_ bv3 32)) (_ bv0 32))) (bvsgt (bvadd main_~main__y~0 (_ bv6 32)) (_ bv0 32)) (not (bvslt (bvadd (bvmul (_ bv2 32) main_~main__y~0) main_~main__x~0 (_ bv1 32)) (_ bv0 32))) (not (bvslt (bvadd (bvmul (_ bv5 32) main_~main__y~0) main_~main__x~0 (_ bv10 32)) (_ bv0 32))) (not (bvslt (_ bv4294966296 32) main_~main__y~0)) (not (bvslt (bvadd (bvmul (_ bv4 32) main_~main__y~0) main_~main__x~0 (_ bv6 32)) (_ bv0 32)))))} is VALID [2018-11-23 11:40:41,584 INFO L256 TraceCheckUtils]: 4: Hoare triple {397#true} call #t~ret2 := main(); {397#true} is VALID [2018-11-23 11:40:41,584 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {397#true} {397#true} #33#return; {397#true} is VALID [2018-11-23 11:40:41,584 INFO L273 TraceCheckUtils]: 2: Hoare triple {397#true} assume true; {397#true} is VALID [2018-11-23 11:40:41,585 INFO L273 TraceCheckUtils]: 1: Hoare triple {397#true} ~__return_main~0 := 0bv32;~__tmp_55_0~0 := 0bv32;~__return_65~0 := 0bv32; {397#true} is VALID [2018-11-23 11:40:41,585 INFO L256 TraceCheckUtils]: 0: Hoare triple {397#true} call ULTIMATE.init(); {397#true} is VALID [2018-11-23 11:40:41,590 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 11:40:41,593 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 11:40:41,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2018-11-23 11:40:41,594 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 23 [2018-11-23 11:40:41,595 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-23 11:40:41,595 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states. [2018-11-23 11:40:50,617 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 36 inductive. 0 not inductive. 4 times theorem prover too weak to decide inductivity. [2018-11-23 11:40:50,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-23 11:40:50,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-23 11:40:50,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2018-11-23 11:40:50,619 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 21 states. [2018-11-23 11:40:56,380 WARN L180 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2018-11-23 11:41:01,712 WARN L180 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2018-11-23 11:41:03,887 WARN L180 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2018-11-23 11:41:04,496 WARN L180 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 29 [2018-11-23 11:41:07,104 WARN L180 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2018-11-23 11:41:07,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:41:07,397 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-23 11:41:07,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 11:41:07,398 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 23 [2018-11-23 11:41:07,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 11:41:07,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 11:41:07,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 48 transitions. [2018-11-23 11:41:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 11:41:07,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 48 transitions. [2018-11-23 11:41:07,418 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 48 transitions. [2018-11-23 11:41:14,956 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 45 inductive. 0 not inductive. 3 times theorem prover too weak to decide inductivity. [2018-11-23 11:41:14,958 INFO L225 Difference]: With dead ends: 42 [2018-11-23 11:41:14,958 INFO L226 Difference]: Without dead ends: 38 [2018-11-23 11:41:14,960 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 10.8s TimeCoverageRelationStatistics Valid=238, Invalid=574, Unknown=0, NotChecked=0, Total=812 [2018-11-23 11:41:14,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-11-23 11:41:15,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-11-23 11:41:15,065 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-23 11:41:15,065 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand 38 states. [2018-11-23 11:41:15,065 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2018-11-23 11:41:15,065 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2018-11-23 11:41:15,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:41:15,068 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-23 11:41:15,068 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-11-23 11:41:15,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:41:15,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:41:15,069 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand 38 states. [2018-11-23 11:41:15,069 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 38 states. [2018-11-23 11:41:15,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 11:41:15,072 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2018-11-23 11:41:15,072 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-11-23 11:41:15,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 11:41:15,073 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-23 11:41:15,073 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-23 11:41:15,073 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-23 11:41:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-23 11:41:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2018-11-23 11:41:15,076 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 23 [2018-11-23 11:41:15,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 11:41:15,076 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2018-11-23 11:41:15,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-23 11:41:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2018-11-23 11:41:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-23 11:41:15,078 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 11:41:15,078 INFO L402 BasicCegarLoop]: trace histogram [13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 11:41:15,078 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 11:41:15,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 11:41:15,079 INFO L82 PathProgramCache]: Analyzing trace with hash -498299566, now seen corresponding path program 3 times [2018-11-23 11:41:15,082 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-23 11:41:15,082 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-23 11:41:15,106 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2018-11-23 11:41:15,852 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2018-11-23 11:41:15,852 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 11:41:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 11:41:15,956 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 11:41:17,665 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2018-11-23 11:41:59,912 WARN L180 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-11-23 11:42:35,312 WARN L180 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 40