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/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-18e5b2d-m [2018-11-18 22:26:11,810 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 22:26:11,812 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 22:26:11,824 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 22:26:11,825 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 22:26:11,826 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 22:26:11,827 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 22:26:11,829 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 22:26:11,831 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 22:26:11,832 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 22:26:11,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 22:26:11,833 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 22:26:11,834 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 22:26:11,835 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 22:26:11,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 22:26:11,837 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 22:26:11,838 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 22:26:11,840 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 22:26:11,842 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 22:26:11,844 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 22:26:11,845 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 22:26:11,854 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 22:26:11,860 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 22:26:11,860 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 22:26:11,860 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 22:26:11,861 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 22:26:11,863 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 22:26:11,864 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 22:26:11,865 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 22:26:11,871 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 22:26:11,871 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 22:26:11,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 22:26:11,873 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 22:26:11,873 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 22:26:11,874 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 22:26:11,875 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 22:26:11,875 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 [2018-11-18 22:26:11,890 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 22:26:11,890 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 22:26:11,891 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 22:26:11,891 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 22:26:11,892 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 22:26:11,892 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 22:26:11,892 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 22:26:11,892 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 22:26:11,893 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 22:26:11,893 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 22:26:11,893 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 22:26:11,893 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 22:26:11,893 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 22:26:11,894 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 22:26:11,894 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 22:26:11,894 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 22:26:11,894 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 22:26:11,894 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 22:26:11,894 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 22:26:11,895 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 22:26:11,895 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 22:26:11,895 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 22:26:11,895 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 22:26:11,895 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 22:26:11,896 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 22:26:11,896 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 22:26:11,896 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 22:26:11,896 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 22:26:11,896 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 22:26:11,897 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 22:26:11,897 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 22:26:11,897 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 22:26:11,897 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 22:26:11,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 22:26:11,965 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 22:26:11,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 22:26:11,971 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 22:26:11,971 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 22:26:11,972 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 22:26:12,039 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5b34f51/57bddf0172484b3295b95cd1de710ca7/FLAG206929a0b [2018-11-18 22:26:12,536 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 22:26:12,537 INFO L161 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 22:26:12,546 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5b34f51/57bddf0172484b3295b95cd1de710ca7/FLAG206929a0b [2018-11-18 22:26:12,893 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b5b34f51/57bddf0172484b3295b95cd1de710ca7 [2018-11-18 22:26:12,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 22:26:12,906 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-18 22:26:12,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 22:26:12,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 22:26:12,913 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 22:26:12,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:12" (1/1) ... [2018-11-18 22:26:12,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3014c986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:12, skipping insertion in model container [2018-11-18 22:26:12,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:26:12" (1/1) ... [2018-11-18 22:26:12,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 22:26:12,970 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 22:26:13,259 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 22:26:13,265 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 22:26:13,324 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 22:26:13,339 INFO L195 MainTranslator]: Completed translation [2018-11-18 22:26:13,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13 WrapperNode [2018-11-18 22:26:13,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 22:26:13,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 22:26:13,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 22:26:13,341 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 22:26:13,352 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (1/1) ... [2018-11-18 22:26:13,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (1/1) ... [2018-11-18 22:26:13,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (1/1) ... [2018-11-18 22:26:13,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (1/1) ... [2018-11-18 22:26:13,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (1/1) ... [2018-11-18 22:26:13,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (1/1) ... [2018-11-18 22:26:13,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (1/1) ... [2018-11-18 22:26:13,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 22:26:13,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 22:26:13,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 22:26:13,392 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 22:26:13,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (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 [2018-11-18 22:26:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 22:26:13,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 22:26:13,522 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 22:26:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 22:26:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 22:26:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 22:26:13,522 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 22:26:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 22:26:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 22:26:13,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 22:26:14,531 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 22:26:14,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:14 BoogieIcfgContainer [2018-11-18 22:26:14,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 22:26:14,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 22:26:14,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 22:26:14,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 22:26:14,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:26:12" (1/3) ... [2018-11-18 22:26:14,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aee7612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:14, skipping insertion in model container [2018-11-18 22:26:14,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:26:13" (2/3) ... [2018-11-18 22:26:14,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aee7612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:26:14, skipping insertion in model container [2018-11-18 22:26:14,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:26:14" (3/3) ... [2018-11-18 22:26:14,540 INFO L112 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop_true-unreach-call.i.v+cfa-reducer.c [2018-11-18 22:26:14,551 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 22:26:14,561 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2018-11-18 22:26:14,579 INFO L257 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2018-11-18 22:26:14,613 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 22:26:14,614 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 22:26:14,614 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 22:26:14,614 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 22:26:14,614 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 22:26:14,615 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 22:26:14,615 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 22:26:14,615 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 22:26:14,615 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 22:26:14,637 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-11-18 22:26:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 22:26:14,643 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:14,644 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:14,647 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:14,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:14,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1118366569, now seen corresponding path program 1 times [2018-11-18 22:26:14,656 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:14,657 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 [2018-11-18 22:26:14,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:14,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:14,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:14,917 INFO L256 TraceCheckUtils]: 0: Hoare triple {68#true} call ULTIMATE.init(); {68#true} is VALID [2018-11-18 22:26:14,921 INFO L273 TraceCheckUtils]: 1: Hoare triple {68#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {68#true} is VALID [2018-11-18 22:26:14,921 INFO L273 TraceCheckUtils]: 2: Hoare triple {68#true} assume true; {68#true} is VALID [2018-11-18 22:26:14,922 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {68#true} {68#true} #139#return; {68#true} is VALID [2018-11-18 22:26:14,922 INFO L256 TraceCheckUtils]: 4: Hoare triple {68#true} call #t~ret4 := main(); {68#true} is VALID [2018-11-18 22:26:14,922 INFO L273 TraceCheckUtils]: 5: Hoare triple {68#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {68#true} is VALID [2018-11-18 22:26:14,923 INFO L273 TraceCheckUtils]: 6: Hoare triple {68#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {68#true} is VALID [2018-11-18 22:26:14,923 INFO L273 TraceCheckUtils]: 7: Hoare triple {68#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {68#true} is VALID [2018-11-18 22:26:14,923 INFO L273 TraceCheckUtils]: 8: Hoare triple {68#true} assume ~bvslt32(~main__i~0, ~main__len~0); {68#true} is VALID [2018-11-18 22:26:14,924 INFO L273 TraceCheckUtils]: 9: Hoare triple {68#true} assume ~bvslt32(~main__j~0, ~main__limit~0); {68#true} is VALID [2018-11-18 22:26:14,925 INFO L273 TraceCheckUtils]: 10: Hoare triple {68#true} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {103#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:14,927 INFO L273 TraceCheckUtils]: 11: Hoare triple {103#(= (bvadd main_~__VERIFIER_assert__cond~0 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~0; {69#false} is VALID [2018-11-18 22:26:14,927 INFO L273 TraceCheckUtils]: 12: Hoare triple {69#false} assume !false; {69#false} is VALID [2018-11-18 22:26:14,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:14,931 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:14,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:14,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 22:26:14,940 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 22:26:14,943 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:14,946 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-18 22:26:14,995 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:14,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 22:26:15,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 22:26:15,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 22:26:15,006 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 3 states. [2018-11-18 22:26:15,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:15,521 INFO L93 Difference]: Finished difference Result 88 states and 116 transitions. [2018-11-18 22:26:15,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 22:26:15,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-11-18 22:26:15,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 22:26:15,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2018-11-18 22:26:15,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 22:26:15,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2018-11-18 22:26:15,555 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 116 transitions. [2018-11-18 22:26:16,160 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 116 edges. 116 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:16,177 INFO L225 Difference]: With dead ends: 88 [2018-11-18 22:26:16,177 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 22:26:16,181 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 22:26:16,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 22:26:16,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2018-11-18 22:26:16,271 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:16,272 INFO L82 GeneralOperation]: Start isEquivalent. First operand 76 states. Second operand 59 states. [2018-11-18 22:26:16,273 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 59 states. [2018-11-18 22:26:16,273 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 59 states. [2018-11-18 22:26:16,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:16,281 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2018-11-18 22:26:16,281 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2018-11-18 22:26:16,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:16,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:16,283 INFO L74 IsIncluded]: Start isIncluded. First operand 59 states. Second operand 76 states. [2018-11-18 22:26:16,283 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 76 states. [2018-11-18 22:26:16,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:16,291 INFO L93 Difference]: Finished difference Result 76 states and 83 transitions. [2018-11-18 22:26:16,291 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 83 transitions. [2018-11-18 22:26:16,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:16,292 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:16,292 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:16,293 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:16,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-11-18 22:26:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 63 transitions. [2018-11-18 22:26:16,299 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 63 transitions. Word has length 13 [2018-11-18 22:26:16,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:16,299 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 63 transitions. [2018-11-18 22:26:16,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 22:26:16,300 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 63 transitions. [2018-11-18 22:26:16,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 22:26:16,301 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:16,301 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:16,302 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:16,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:16,302 INFO L82 PathProgramCache]: Analyzing trace with hash -306453431, now seen corresponding path program 1 times [2018-11-18 22:26:16,303 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:16,303 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 [2018-11-18 22:26:16,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:16,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:16,361 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:16,473 INFO L256 TraceCheckUtils]: 0: Hoare triple {425#true} call ULTIMATE.init(); {425#true} is VALID [2018-11-18 22:26:16,473 INFO L273 TraceCheckUtils]: 1: Hoare triple {425#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {425#true} is VALID [2018-11-18 22:26:16,473 INFO L273 TraceCheckUtils]: 2: Hoare triple {425#true} assume true; {425#true} is VALID [2018-11-18 22:26:16,474 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {425#true} {425#true} #139#return; {425#true} is VALID [2018-11-18 22:26:16,474 INFO L256 TraceCheckUtils]: 4: Hoare triple {425#true} call #t~ret4 := main(); {425#true} is VALID [2018-11-18 22:26:16,474 INFO L273 TraceCheckUtils]: 5: Hoare triple {425#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {425#true} is VALID [2018-11-18 22:26:16,475 INFO L273 TraceCheckUtils]: 6: Hoare triple {425#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {425#true} is VALID [2018-11-18 22:26:16,492 INFO L273 TraceCheckUtils]: 7: Hoare triple {425#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {451#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:16,501 INFO L273 TraceCheckUtils]: 8: Hoare triple {451#(bvslt main_~main__i~0 main_~main__len~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {451#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:16,503 INFO L273 TraceCheckUtils]: 9: Hoare triple {451#(bvslt main_~main__i~0 main_~main__len~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {451#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:16,506 INFO L273 TraceCheckUtils]: 10: Hoare triple {451#(bvslt main_~main__i~0 main_~main__len~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {451#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:16,511 INFO L273 TraceCheckUtils]: 11: Hoare triple {451#(bvslt main_~main__i~0 main_~main__len~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {464#(= (bvadd main_~__VERIFIER_assert__cond~2 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:16,512 INFO L273 TraceCheckUtils]: 12: Hoare triple {464#(= (bvadd main_~__VERIFIER_assert__cond~2 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~2; {426#false} is VALID [2018-11-18 22:26:16,512 INFO L273 TraceCheckUtils]: 13: Hoare triple {426#false} assume !false; {426#false} is VALID [2018-11-18 22:26:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:16,514 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:16,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:16,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 22:26:16,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 22:26:16,522 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:16,522 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 22:26:16,571 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:16,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 22:26:16,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 22:26:16,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 22:26:16,573 INFO L87 Difference]: Start difference. First operand 59 states and 63 transitions. Second operand 4 states. [2018-11-18 22:26:17,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:17,346 INFO L93 Difference]: Finished difference Result 153 states and 168 transitions. [2018-11-18 22:26:17,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 22:26:17,346 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 22:26:17,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2018-11-18 22:26:17,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2018-11-18 22:26:17,357 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 168 transitions. [2018-11-18 22:26:17,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:17,735 INFO L225 Difference]: With dead ends: 153 [2018-11-18 22:26:17,735 INFO L226 Difference]: Without dead ends: 101 [2018-11-18 22:26:17,736 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:17,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-18 22:26:17,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 58. [2018-11-18 22:26:17,780 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:17,780 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 58 states. [2018-11-18 22:26:17,780 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 58 states. [2018-11-18 22:26:17,780 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 58 states. [2018-11-18 22:26:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:17,786 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2018-11-18 22:26:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2018-11-18 22:26:17,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:17,788 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:17,788 INFO L74 IsIncluded]: Start isIncluded. First operand 58 states. Second operand 101 states. [2018-11-18 22:26:17,788 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 101 states. [2018-11-18 22:26:17,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:17,794 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2018-11-18 22:26:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2018-11-18 22:26:17,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:17,795 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:17,796 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:17,796 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-18 22:26:17,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-11-18 22:26:17,799 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 14 [2018-11-18 22:26:17,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:17,800 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-11-18 22:26:17,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 22:26:17,800 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-11-18 22:26:17,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 22:26:17,801 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:17,801 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:17,802 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:17,802 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:17,802 INFO L82 PathProgramCache]: Analyzing trace with hash -309622200, now seen corresponding path program 1 times [2018-11-18 22:26:17,802 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:17,803 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 [2018-11-18 22:26:17,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:17,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:17,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:17,953 INFO L256 TraceCheckUtils]: 0: Hoare triple {910#true} call ULTIMATE.init(); {910#true} is VALID [2018-11-18 22:26:17,953 INFO L273 TraceCheckUtils]: 1: Hoare triple {910#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {910#true} is VALID [2018-11-18 22:26:17,953 INFO L273 TraceCheckUtils]: 2: Hoare triple {910#true} assume true; {910#true} is VALID [2018-11-18 22:26:17,954 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {910#true} {910#true} #139#return; {910#true} is VALID [2018-11-18 22:26:17,954 INFO L256 TraceCheckUtils]: 4: Hoare triple {910#true} call #t~ret4 := main(); {910#true} is VALID [2018-11-18 22:26:17,954 INFO L273 TraceCheckUtils]: 5: Hoare triple {910#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {910#true} is VALID [2018-11-18 22:26:17,957 INFO L273 TraceCheckUtils]: 6: Hoare triple {910#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {933#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:17,957 INFO L273 TraceCheckUtils]: 7: Hoare triple {933#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {933#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:17,959 INFO L273 TraceCheckUtils]: 8: Hoare triple {933#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {933#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:17,959 INFO L273 TraceCheckUtils]: 9: Hoare triple {933#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {933#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:17,961 INFO L273 TraceCheckUtils]: 10: Hoare triple {933#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {933#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:17,961 INFO L273 TraceCheckUtils]: 11: Hoare triple {933#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {949#(= (_ bv1 32) main_~__VERIFIER_assert__cond~1)} is VALID [2018-11-18 22:26:17,963 INFO L273 TraceCheckUtils]: 12: Hoare triple {949#(= (_ bv1 32) main_~__VERIFIER_assert__cond~1)} assume 0bv32 == ~__VERIFIER_assert__cond~1; {911#false} is VALID [2018-11-18 22:26:17,963 INFO L273 TraceCheckUtils]: 13: Hoare triple {911#false} assume !false; {911#false} is VALID [2018-11-18 22:26:17,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:17,966 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 (4)] Exception during sending of exit command (exit): Broken pipe [2018-11-18 22:26:17,969 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:17,969 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 22:26:17,969 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 22:26:17,970 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:17,970 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 22:26:17,993 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:17,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 22:26:17,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 22:26:17,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 22:26:17,995 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 4 states. [2018-11-18 22:26:18,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:18,631 INFO L93 Difference]: Finished difference Result 136 states and 146 transitions. [2018-11-18 22:26:18,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 22:26:18,632 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 22:26:18,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:18,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2018-11-18 22:26:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:18,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 144 transitions. [2018-11-18 22:26:18,639 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 144 transitions. [2018-11-18 22:26:18,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 144 edges. 144 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:18,920 INFO L225 Difference]: With dead ends: 136 [2018-11-18 22:26:18,920 INFO L226 Difference]: Without dead ends: 134 [2018-11-18 22:26:18,921 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:18,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2018-11-18 22:26:19,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 64. [2018-11-18 22:26:19,037 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:19,037 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 64 states. [2018-11-18 22:26:19,038 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 64 states. [2018-11-18 22:26:19,038 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 64 states. [2018-11-18 22:26:19,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:19,043 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2018-11-18 22:26:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2018-11-18 22:26:19,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:19,045 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:19,045 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 134 states. [2018-11-18 22:26:19,046 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 134 states. [2018-11-18 22:26:19,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:19,052 INFO L93 Difference]: Finished difference Result 134 states and 144 transitions. [2018-11-18 22:26:19,052 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 144 transitions. [2018-11-18 22:26:19,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:19,053 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:19,053 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:19,053 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:19,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-11-18 22:26:19,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 70 transitions. [2018-11-18 22:26:19,057 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 70 transitions. Word has length 14 [2018-11-18 22:26:19,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:19,057 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 70 transitions. [2018-11-18 22:26:19,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 22:26:19,057 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 70 transitions. [2018-11-18 22:26:19,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 22:26:19,058 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:19,058 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:19,059 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:19,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:19,059 INFO L82 PathProgramCache]: Analyzing trace with hash -910118681, now seen corresponding path program 1 times [2018-11-18 22:26:19,060 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:19,060 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 [2018-11-18 22:26:19,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:19,117 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:19,180 INFO L256 TraceCheckUtils]: 0: Hoare triple {1451#true} call ULTIMATE.init(); {1451#true} is VALID [2018-11-18 22:26:19,180 INFO L273 TraceCheckUtils]: 1: Hoare triple {1451#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {1451#true} is VALID [2018-11-18 22:26:19,181 INFO L273 TraceCheckUtils]: 2: Hoare triple {1451#true} assume true; {1451#true} is VALID [2018-11-18 22:26:19,181 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1451#true} {1451#true} #139#return; {1451#true} is VALID [2018-11-18 22:26:19,181 INFO L256 TraceCheckUtils]: 4: Hoare triple {1451#true} call #t~ret4 := main(); {1451#true} is VALID [2018-11-18 22:26:19,181 INFO L273 TraceCheckUtils]: 5: Hoare triple {1451#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {1451#true} is VALID [2018-11-18 22:26:19,182 INFO L273 TraceCheckUtils]: 6: Hoare triple {1451#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {1474#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:19,186 INFO L273 TraceCheckUtils]: 7: Hoare triple {1474#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {1474#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:19,186 INFO L273 TraceCheckUtils]: 8: Hoare triple {1474#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {1474#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:19,189 INFO L273 TraceCheckUtils]: 9: Hoare triple {1474#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {1474#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:19,192 INFO L273 TraceCheckUtils]: 10: Hoare triple {1474#(= (_ bv0 32) main_~main__i~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {1474#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:19,194 INFO L273 TraceCheckUtils]: 11: Hoare triple {1474#(= (_ bv0 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {1474#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:19,196 INFO L273 TraceCheckUtils]: 12: Hoare triple {1474#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {1493#(= (_ bv1 32) main_~__VERIFIER_assert__cond~3)} is VALID [2018-11-18 22:26:19,197 INFO L273 TraceCheckUtils]: 13: Hoare triple {1493#(= (_ bv1 32) main_~__VERIFIER_assert__cond~3)} assume 0bv32 == ~__VERIFIER_assert__cond~3; {1452#false} is VALID [2018-11-18 22:26:19,197 INFO L273 TraceCheckUtils]: 14: Hoare triple {1452#false} assume !false; {1452#false} is VALID [2018-11-18 22:26:19,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:19,199 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:19,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:19,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 22:26:19,201 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-18 22:26:19,201 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:19,201 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 22:26:19,241 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:19,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 22:26:19,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 22:26:19,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 22:26:19,242 INFO L87 Difference]: Start difference. First operand 64 states and 70 transitions. Second operand 4 states. [2018-11-18 22:26:19,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:19,738 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2018-11-18 22:26:19,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 22:26:19,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-11-18 22:26:19,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2018-11-18 22:26:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:19,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2018-11-18 22:26:19,744 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 139 transitions. [2018-11-18 22:26:19,939 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 139 edges. 139 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:19,943 INFO L225 Difference]: With dead ends: 130 [2018-11-18 22:26:19,943 INFO L226 Difference]: Without dead ends: 128 [2018-11-18 22:26:19,944 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:19,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-11-18 22:26:19,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 68. [2018-11-18 22:26:19,978 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:19,978 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 68 states. [2018-11-18 22:26:19,978 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 68 states. [2018-11-18 22:26:19,979 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 68 states. [2018-11-18 22:26:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:19,983 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2018-11-18 22:26:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2018-11-18 22:26:19,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:19,984 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:19,985 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 128 states. [2018-11-18 22:26:19,985 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 128 states. [2018-11-18 22:26:19,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:19,990 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2018-11-18 22:26:19,990 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 139 transitions. [2018-11-18 22:26:19,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:19,991 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:19,991 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:19,991 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:19,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 22:26:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 75 transitions. [2018-11-18 22:26:19,994 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 75 transitions. Word has length 15 [2018-11-18 22:26:19,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:19,995 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 75 transitions. [2018-11-18 22:26:19,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 22:26:19,995 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 75 transitions. [2018-11-18 22:26:19,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 22:26:19,996 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:19,996 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:19,997 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:19,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:19,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1851095055, now seen corresponding path program 1 times [2018-11-18 22:26:19,997 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:19,998 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:20,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:20,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:20,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:20,205 INFO L256 TraceCheckUtils]: 0: Hoare triple {1981#true} call ULTIMATE.init(); {1981#true} is VALID [2018-11-18 22:26:20,205 INFO L273 TraceCheckUtils]: 1: Hoare triple {1981#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {1981#true} is VALID [2018-11-18 22:26:20,205 INFO L273 TraceCheckUtils]: 2: Hoare triple {1981#true} assume true; {1981#true} is VALID [2018-11-18 22:26:20,206 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {1981#true} {1981#true} #139#return; {1981#true} is VALID [2018-11-18 22:26:20,206 INFO L256 TraceCheckUtils]: 4: Hoare triple {1981#true} call #t~ret4 := main(); {1981#true} is VALID [2018-11-18 22:26:20,206 INFO L273 TraceCheckUtils]: 5: Hoare triple {1981#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {1981#true} is VALID [2018-11-18 22:26:20,209 INFO L273 TraceCheckUtils]: 6: Hoare triple {1981#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {2004#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:20,210 INFO L273 TraceCheckUtils]: 7: Hoare triple {2004#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {2008#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:20,213 INFO L273 TraceCheckUtils]: 8: Hoare triple {2008#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {2008#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:20,215 INFO L273 TraceCheckUtils]: 9: Hoare triple {2008#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:20,218 INFO L273 TraceCheckUtils]: 10: Hoare triple {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:20,221 INFO L273 TraceCheckUtils]: 11: Hoare triple {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:20,223 INFO L273 TraceCheckUtils]: 12: Hoare triple {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:20,225 INFO L273 TraceCheckUtils]: 13: Hoare triple {2015#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {2028#(= (bvadd main_~__VERIFIER_assert__cond~4 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:20,227 INFO L273 TraceCheckUtils]: 14: Hoare triple {2028#(= (bvadd main_~__VERIFIER_assert__cond~4 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~4; {1982#false} is VALID [2018-11-18 22:26:20,227 INFO L273 TraceCheckUtils]: 15: Hoare triple {1982#false} assume !false; {1982#false} is VALID [2018-11-18 22:26:20,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:20,229 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:20,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:20,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 22:26:20,234 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-18 22:26:20,234 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:20,234 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-18 22:26:20,261 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:20,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 22:26:20,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 22:26:20,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 22:26:20,262 INFO L87 Difference]: Start difference. First operand 68 states and 75 transitions. Second operand 6 states. [2018-11-18 22:26:21,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:21,948 INFO L93 Difference]: Finished difference Result 170 states and 187 transitions. [2018-11-18 22:26:21,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 22:26:21,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-18 22:26:21,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:21,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:21,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2018-11-18 22:26:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 173 transitions. [2018-11-18 22:26:21,955 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 173 transitions. [2018-11-18 22:26:22,367 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:22,371 INFO L225 Difference]: With dead ends: 170 [2018-11-18 22:26:22,371 INFO L226 Difference]: Without dead ends: 168 [2018-11-18 22:26:22,372 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-18 22:26:22,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2018-11-18 22:26:22,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 77. [2018-11-18 22:26:22,424 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:22,424 INFO L82 GeneralOperation]: Start isEquivalent. First operand 168 states. Second operand 77 states. [2018-11-18 22:26:22,424 INFO L74 IsIncluded]: Start isIncluded. First operand 168 states. Second operand 77 states. [2018-11-18 22:26:22,424 INFO L87 Difference]: Start difference. First operand 168 states. Second operand 77 states. [2018-11-18 22:26:22,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:22,430 INFO L93 Difference]: Finished difference Result 168 states and 185 transitions. [2018-11-18 22:26:22,430 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 185 transitions. [2018-11-18 22:26:22,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:22,431 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:22,431 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 168 states. [2018-11-18 22:26:22,431 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 168 states. [2018-11-18 22:26:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:22,437 INFO L93 Difference]: Finished difference Result 168 states and 185 transitions. [2018-11-18 22:26:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 185 transitions. [2018-11-18 22:26:22,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:22,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:22,438 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:22,438 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:22,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 22:26:22,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2018-11-18 22:26:22,440 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 16 [2018-11-18 22:26:22,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:22,441 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2018-11-18 22:26:22,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 22:26:22,441 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2018-11-18 22:26:22,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 22:26:22,441 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:22,442 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:22,442 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:22,443 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:22,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1194066488, now seen corresponding path program 1 times [2018-11-18 22:26:22,443 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:22,443 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:22,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:22,515 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:22,629 INFO L256 TraceCheckUtils]: 0: Hoare triple {2657#true} call ULTIMATE.init(); {2657#true} is VALID [2018-11-18 22:26:22,629 INFO L273 TraceCheckUtils]: 1: Hoare triple {2657#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {2657#true} is VALID [2018-11-18 22:26:22,629 INFO L273 TraceCheckUtils]: 2: Hoare triple {2657#true} assume true; {2657#true} is VALID [2018-11-18 22:26:22,630 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {2657#true} {2657#true} #139#return; {2657#true} is VALID [2018-11-18 22:26:22,630 INFO L256 TraceCheckUtils]: 4: Hoare triple {2657#true} call #t~ret4 := main(); {2657#true} is VALID [2018-11-18 22:26:22,630 INFO L273 TraceCheckUtils]: 5: Hoare triple {2657#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {2657#true} is VALID [2018-11-18 22:26:22,630 INFO L273 TraceCheckUtils]: 6: Hoare triple {2657#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {2657#true} is VALID [2018-11-18 22:26:22,631 INFO L273 TraceCheckUtils]: 7: Hoare triple {2657#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {2683#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:22,632 INFO L273 TraceCheckUtils]: 8: Hoare triple {2683#(bvslt main_~main__i~0 main_~main__len~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {2683#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:22,632 INFO L273 TraceCheckUtils]: 9: Hoare triple {2683#(bvslt main_~main__i~0 main_~main__len~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {2683#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:22,635 INFO L273 TraceCheckUtils]: 10: Hoare triple {2683#(bvslt main_~main__i~0 main_~main__len~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {2683#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:22,635 INFO L273 TraceCheckUtils]: 11: Hoare triple {2683#(bvslt main_~main__i~0 main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {2683#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:22,638 INFO L273 TraceCheckUtils]: 12: Hoare triple {2683#(bvslt main_~main__i~0 main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {2683#(bvslt main_~main__i~0 main_~main__len~0)} is VALID [2018-11-18 22:26:22,640 INFO L273 TraceCheckUtils]: 13: Hoare triple {2683#(bvslt main_~main__i~0 main_~main__len~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {2702#(= (bvadd main_~__VERIFIER_assert__cond~6 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:22,640 INFO L273 TraceCheckUtils]: 14: Hoare triple {2702#(= (bvadd main_~__VERIFIER_assert__cond~6 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~6; {2658#false} is VALID [2018-11-18 22:26:22,641 INFO L273 TraceCheckUtils]: 15: Hoare triple {2658#false} assume !false; {2658#false} is VALID [2018-11-18 22:26:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:22,641 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:22,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:22,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 22:26:22,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-18 22:26:22,644 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:22,644 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 22:26:22,677 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:22,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 22:26:22,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 22:26:22,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 22:26:22,678 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand 4 states. [2018-11-18 22:26:23,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:23,232 INFO L93 Difference]: Finished difference Result 110 states and 131 transitions. [2018-11-18 22:26:23,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 22:26:23,232 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-11-18 22:26:23,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:23,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:23,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2018-11-18 22:26:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:23,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 89 transitions. [2018-11-18 22:26:23,236 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 89 transitions. [2018-11-18 22:26:23,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 89 edges. 89 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:23,405 INFO L225 Difference]: With dead ends: 110 [2018-11-18 22:26:23,405 INFO L226 Difference]: Without dead ends: 108 [2018-11-18 22:26:23,406 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2018-11-18 22:26:23,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2018-11-18 22:26:23,470 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:23,471 INFO L82 GeneralOperation]: Start isEquivalent. First operand 108 states. Second operand 75 states. [2018-11-18 22:26:23,471 INFO L74 IsIncluded]: Start isIncluded. First operand 108 states. Second operand 75 states. [2018-11-18 22:26:23,471 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 75 states. [2018-11-18 22:26:23,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:23,476 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2018-11-18 22:26:23,476 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2018-11-18 22:26:23,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:23,477 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:23,477 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 108 states. [2018-11-18 22:26:23,477 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 108 states. [2018-11-18 22:26:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:23,481 INFO L93 Difference]: Finished difference Result 108 states and 129 transitions. [2018-11-18 22:26:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2018-11-18 22:26:23,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:23,481 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:23,482 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:23,482 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:23,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-11-18 22:26:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 87 transitions. [2018-11-18 22:26:23,484 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 87 transitions. Word has length 16 [2018-11-18 22:26:23,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:23,485 INFO L480 AbstractCegarLoop]: Abstraction has 75 states and 87 transitions. [2018-11-18 22:26:23,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 22:26:23,485 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2018-11-18 22:26:23,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 22:26:23,485 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:23,486 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:23,486 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:23,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:23,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1549374957, now seen corresponding path program 1 times [2018-11-18 22:26:23,487 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:23,487 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:23,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:23,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:23,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:23,614 INFO L256 TraceCheckUtils]: 0: Hoare triple {3143#true} call ULTIMATE.init(); {3143#true} is VALID [2018-11-18 22:26:23,614 INFO L273 TraceCheckUtils]: 1: Hoare triple {3143#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {3143#true} is VALID [2018-11-18 22:26:23,615 INFO L273 TraceCheckUtils]: 2: Hoare triple {3143#true} assume true; {3143#true} is VALID [2018-11-18 22:26:23,615 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {3143#true} {3143#true} #139#return; {3143#true} is VALID [2018-11-18 22:26:23,615 INFO L256 TraceCheckUtils]: 4: Hoare triple {3143#true} call #t~ret4 := main(); {3143#true} is VALID [2018-11-18 22:26:23,615 INFO L273 TraceCheckUtils]: 5: Hoare triple {3143#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {3143#true} is VALID [2018-11-18 22:26:23,616 INFO L273 TraceCheckUtils]: 6: Hoare triple {3143#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {3143#true} is VALID [2018-11-18 22:26:23,618 INFO L273 TraceCheckUtils]: 7: Hoare triple {3143#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {3169#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:23,618 INFO L273 TraceCheckUtils]: 8: Hoare triple {3169#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {3169#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:23,619 INFO L273 TraceCheckUtils]: 9: Hoare triple {3169#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {3169#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:23,620 INFO L273 TraceCheckUtils]: 10: Hoare triple {3169#(= (_ bv0 32) main_~main__j~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {3169#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:23,623 INFO L273 TraceCheckUtils]: 11: Hoare triple {3169#(= (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {3169#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:23,623 INFO L273 TraceCheckUtils]: 12: Hoare triple {3169#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {3169#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:23,625 INFO L273 TraceCheckUtils]: 13: Hoare triple {3169#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {3169#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:23,625 INFO L273 TraceCheckUtils]: 14: Hoare triple {3169#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {3191#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:23,627 INFO L273 TraceCheckUtils]: 15: Hoare triple {3191#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~5; {3144#false} is VALID [2018-11-18 22:26:23,627 INFO L273 TraceCheckUtils]: 16: Hoare triple {3144#false} assume !false; {3144#false} is VALID [2018-11-18 22:26:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:23,628 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:23,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:23,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 22:26:23,636 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-18 22:26:23,636 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:23,636 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 22:26:23,655 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:23,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 22:26:23,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 22:26:23,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 22:26:23,656 INFO L87 Difference]: Start difference. First operand 75 states and 87 transitions. Second operand 4 states. [2018-11-18 22:26:24,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:24,293 INFO L93 Difference]: Finished difference Result 164 states and 181 transitions. [2018-11-18 22:26:24,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 22:26:24,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-18 22:26:24,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:24,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:24,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2018-11-18 22:26:24,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:24,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2018-11-18 22:26:24,300 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 167 transitions. [2018-11-18 22:26:24,830 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 167 edges. 167 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:24,834 INFO L225 Difference]: With dead ends: 164 [2018-11-18 22:26:24,834 INFO L226 Difference]: Without dead ends: 162 [2018-11-18 22:26:24,835 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:24,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2018-11-18 22:26:24,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 76. [2018-11-18 22:26:24,882 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:24,883 INFO L82 GeneralOperation]: Start isEquivalent. First operand 162 states. Second operand 76 states. [2018-11-18 22:26:24,883 INFO L74 IsIncluded]: Start isIncluded. First operand 162 states. Second operand 76 states. [2018-11-18 22:26:24,883 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 76 states. [2018-11-18 22:26:24,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:24,889 INFO L93 Difference]: Finished difference Result 162 states and 179 transitions. [2018-11-18 22:26:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 179 transitions. [2018-11-18 22:26:24,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:24,890 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:24,890 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 162 states. [2018-11-18 22:26:24,890 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 162 states. [2018-11-18 22:26:24,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:24,895 INFO L93 Difference]: Finished difference Result 162 states and 179 transitions. [2018-11-18 22:26:24,895 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 179 transitions. [2018-11-18 22:26:24,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:24,895 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:24,896 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:24,896 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-11-18 22:26:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 88 transitions. [2018-11-18 22:26:24,898 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 88 transitions. Word has length 17 [2018-11-18 22:26:24,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:24,899 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 88 transitions. [2018-11-18 22:26:24,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 22:26:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 88 transitions. [2018-11-18 22:26:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-18 22:26:24,900 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:24,900 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:24,900 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:24,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:24,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1638647651, now seen corresponding path program 1 times [2018-11-18 22:26:24,901 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:24,901 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:24,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:24,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:24,971 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:25,216 INFO L256 TraceCheckUtils]: 0: Hoare triple {3795#true} call ULTIMATE.init(); {3795#true} is VALID [2018-11-18 22:26:25,216 INFO L273 TraceCheckUtils]: 1: Hoare triple {3795#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {3795#true} is VALID [2018-11-18 22:26:25,217 INFO L273 TraceCheckUtils]: 2: Hoare triple {3795#true} assume true; {3795#true} is VALID [2018-11-18 22:26:25,217 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {3795#true} {3795#true} #139#return; {3795#true} is VALID [2018-11-18 22:26:25,217 INFO L256 TraceCheckUtils]: 4: Hoare triple {3795#true} call #t~ret4 := main(); {3795#true} is VALID [2018-11-18 22:26:25,217 INFO L273 TraceCheckUtils]: 5: Hoare triple {3795#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {3795#true} is VALID [2018-11-18 22:26:25,217 INFO L273 TraceCheckUtils]: 6: Hoare triple {3795#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {3795#true} is VALID [2018-11-18 22:26:25,218 INFO L273 TraceCheckUtils]: 7: Hoare triple {3795#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {3795#true} is VALID [2018-11-18 22:26:25,218 INFO L273 TraceCheckUtils]: 8: Hoare triple {3795#true} assume ~bvslt32(~main__i~0, ~main__len~0); {3795#true} is VALID [2018-11-18 22:26:25,218 INFO L273 TraceCheckUtils]: 9: Hoare triple {3795#true} assume ~bvslt32(~main__j~0, ~main__limit~0); {3795#true} is VALID [2018-11-18 22:26:25,218 INFO L273 TraceCheckUtils]: 10: Hoare triple {3795#true} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {3795#true} is VALID [2018-11-18 22:26:25,234 INFO L273 TraceCheckUtils]: 11: Hoare triple {3795#true} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {3833#(or (and (not (bvsle (_ bv0 32) main_~main__i~0)) (= main_~__VERIFIER_assert__cond~1 (_ bv0 32))) (and (= (bvadd main_~__VERIFIER_assert__cond~1 (_ bv4294967295 32)) (_ bv0 32)) (bvsle (_ bv0 32) main_~main__i~0)))} is VALID [2018-11-18 22:26:25,248 INFO L273 TraceCheckUtils]: 12: Hoare triple {3833#(or (and (not (bvsle (_ bv0 32) main_~main__i~0)) (= main_~__VERIFIER_assert__cond~1 (_ bv0 32))) (and (= (bvadd main_~__VERIFIER_assert__cond~1 (_ bv4294967295 32)) (_ bv0 32)) (bvsle (_ bv0 32) main_~main__i~0)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {3837#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:25,257 INFO L273 TraceCheckUtils]: 13: Hoare triple {3837#(bvsle (_ bv0 32) main_~main__i~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {3837#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:25,258 INFO L273 TraceCheckUtils]: 14: Hoare triple {3837#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {3844#(= (bvadd main_~__VERIFIER_assert__cond~7 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:25,258 INFO L273 TraceCheckUtils]: 15: Hoare triple {3844#(= (bvadd main_~__VERIFIER_assert__cond~7 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~7; {3796#false} is VALID [2018-11-18 22:26:25,258 INFO L273 TraceCheckUtils]: 16: Hoare triple {3796#false} assume !false; {3796#false} is VALID [2018-11-18 22:26:25,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:25,259 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:25,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:25,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 22:26:25,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-18 22:26:25,274 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:25,274 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 22:26:25,294 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:25,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 22:26:25,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 22:26:25,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:25,295 INFO L87 Difference]: Start difference. First operand 76 states and 88 transitions. Second operand 5 states. [2018-11-18 22:26:26,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:26,148 INFO L93 Difference]: Finished difference Result 145 states and 168 transitions. [2018-11-18 22:26:26,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 22:26:26,148 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-11-18 22:26:26,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 22:26:26,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 119 transitions. [2018-11-18 22:26:26,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 22:26:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 119 transitions. [2018-11-18 22:26:26,154 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 119 transitions. [2018-11-18 22:26:26,371 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 119 edges. 119 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:26,375 INFO L225 Difference]: With dead ends: 145 [2018-11-18 22:26:26,375 INFO L226 Difference]: Without dead ends: 143 [2018-11-18 22:26:26,376 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 22:26:26,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2018-11-18 22:26:26,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 74. [2018-11-18 22:26:26,514 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:26,515 INFO L82 GeneralOperation]: Start isEquivalent. First operand 143 states. Second operand 74 states. [2018-11-18 22:26:26,515 INFO L74 IsIncluded]: Start isIncluded. First operand 143 states. Second operand 74 states. [2018-11-18 22:26:26,515 INFO L87 Difference]: Start difference. First operand 143 states. Second operand 74 states. [2018-11-18 22:26:26,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:26,521 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2018-11-18 22:26:26,521 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2018-11-18 22:26:26,522 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:26,522 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:26,522 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 143 states. [2018-11-18 22:26:26,522 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 143 states. [2018-11-18 22:26:26,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:26,528 INFO L93 Difference]: Finished difference Result 143 states and 166 transitions. [2018-11-18 22:26:26,528 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 166 transitions. [2018-11-18 22:26:26,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:26,529 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:26,529 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:26,529 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 22:26:26,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 86 transitions. [2018-11-18 22:26:26,532 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 86 transitions. Word has length 17 [2018-11-18 22:26:26,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:26,532 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 86 transitions. [2018-11-18 22:26:26,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 22:26:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 86 transitions. [2018-11-18 22:26:26,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 22:26:26,533 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:26,533 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:26,533 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:26,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:26,534 INFO L82 PathProgramCache]: Analyzing trace with hash -741527250, now seen corresponding path program 1 times [2018-11-18 22:26:26,534 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:26,534 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:26,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:26,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:26,590 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:26,720 INFO L256 TraceCheckUtils]: 0: Hoare triple {4395#true} call ULTIMATE.init(); {4395#true} is VALID [2018-11-18 22:26:26,720 INFO L273 TraceCheckUtils]: 1: Hoare triple {4395#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {4395#true} is VALID [2018-11-18 22:26:26,720 INFO L273 TraceCheckUtils]: 2: Hoare triple {4395#true} assume true; {4395#true} is VALID [2018-11-18 22:26:26,721 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {4395#true} {4395#true} #139#return; {4395#true} is VALID [2018-11-18 22:26:26,721 INFO L256 TraceCheckUtils]: 4: Hoare triple {4395#true} call #t~ret4 := main(); {4395#true} is VALID [2018-11-18 22:26:26,721 INFO L273 TraceCheckUtils]: 5: Hoare triple {4395#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {4395#true} is VALID [2018-11-18 22:26:26,723 INFO L273 TraceCheckUtils]: 6: Hoare triple {4395#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {4418#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:26,723 INFO L273 TraceCheckUtils]: 7: Hoare triple {4418#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {4422#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:26,724 INFO L273 TraceCheckUtils]: 8: Hoare triple {4422#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {4422#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:26,725 INFO L273 TraceCheckUtils]: 9: Hoare triple {4422#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:26,728 INFO L273 TraceCheckUtils]: 10: Hoare triple {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:26,730 INFO L273 TraceCheckUtils]: 11: Hoare triple {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:26,732 INFO L273 TraceCheckUtils]: 12: Hoare triple {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:26,734 INFO L273 TraceCheckUtils]: 13: Hoare triple {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:26,737 INFO L273 TraceCheckUtils]: 14: Hoare triple {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:26,739 INFO L273 TraceCheckUtils]: 15: Hoare triple {4429#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {4448#(= (bvadd main_~__VERIFIER_assert__cond~8 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:26,740 INFO L273 TraceCheckUtils]: 16: Hoare triple {4448#(= (bvadd main_~__VERIFIER_assert__cond~8 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~8; {4396#false} is VALID [2018-11-18 22:26:26,740 INFO L273 TraceCheckUtils]: 17: Hoare triple {4396#false} assume !false; {4396#false} is VALID [2018-11-18 22:26:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:26,742 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:26,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:26,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 22:26:26,747 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-18 22:26:26,747 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:26,747 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-18 22:26:26,821 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:26,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 22:26:26,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 22:26:26,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 22:26:26,823 INFO L87 Difference]: Start difference. First operand 74 states and 86 transitions. Second operand 6 states. [2018-11-18 22:26:28,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:28,301 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2018-11-18 22:26:28,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 22:26:28,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2018-11-18 22:26:28,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:28,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2018-11-18 22:26:28,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:28,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2018-11-18 22:26:28,307 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 149 transitions. [2018-11-18 22:26:28,631 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 149 edges. 149 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:28,635 INFO L225 Difference]: With dead ends: 146 [2018-11-18 22:26:28,635 INFO L226 Difference]: Without dead ends: 144 [2018-11-18 22:26:28,636 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2018-11-18 22:26:28,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-11-18 22:26:28,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 77. [2018-11-18 22:26:28,780 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:28,780 INFO L82 GeneralOperation]: Start isEquivalent. First operand 144 states. Second operand 77 states. [2018-11-18 22:26:28,780 INFO L74 IsIncluded]: Start isIncluded. First operand 144 states. Second operand 77 states. [2018-11-18 22:26:28,780 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 77 states. [2018-11-18 22:26:28,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:28,786 INFO L93 Difference]: Finished difference Result 144 states and 161 transitions. [2018-11-18 22:26:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 161 transitions. [2018-11-18 22:26:28,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:28,787 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:28,787 INFO L74 IsIncluded]: Start isIncluded. First operand 77 states. Second operand 144 states. [2018-11-18 22:26:28,787 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 144 states. [2018-11-18 22:26:28,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:28,792 INFO L93 Difference]: Finished difference Result 144 states and 161 transitions. [2018-11-18 22:26:28,792 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 161 transitions. [2018-11-18 22:26:28,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:28,793 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:28,793 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:28,793 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-11-18 22:26:28,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 89 transitions. [2018-11-18 22:26:28,796 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 89 transitions. Word has length 18 [2018-11-18 22:26:28,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:28,796 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 89 transitions. [2018-11-18 22:26:28,796 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 22:26:28,796 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 89 transitions. [2018-11-18 22:26:28,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 22:26:28,797 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:28,797 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:28,798 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:28,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:28,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1512505143, now seen corresponding path program 1 times [2018-11-18 22:26:28,798 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:28,798 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:28,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:28,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:28,917 INFO L256 TraceCheckUtils]: 0: Hoare triple {5005#true} call ULTIMATE.init(); {5005#true} is VALID [2018-11-18 22:26:28,918 INFO L273 TraceCheckUtils]: 1: Hoare triple {5005#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {5005#true} is VALID [2018-11-18 22:26:28,918 INFO L273 TraceCheckUtils]: 2: Hoare triple {5005#true} assume true; {5005#true} is VALID [2018-11-18 22:26:28,918 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {5005#true} {5005#true} #139#return; {5005#true} is VALID [2018-11-18 22:26:28,919 INFO L256 TraceCheckUtils]: 4: Hoare triple {5005#true} call #t~ret4 := main(); {5005#true} is VALID [2018-11-18 22:26:28,919 INFO L273 TraceCheckUtils]: 5: Hoare triple {5005#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {5005#true} is VALID [2018-11-18 22:26:28,919 INFO L273 TraceCheckUtils]: 6: Hoare triple {5005#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {5005#true} is VALID [2018-11-18 22:26:28,920 INFO L273 TraceCheckUtils]: 7: Hoare triple {5005#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,920 INFO L273 TraceCheckUtils]: 8: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,920 INFO L273 TraceCheckUtils]: 9: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,921 INFO L273 TraceCheckUtils]: 10: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,921 INFO L273 TraceCheckUtils]: 11: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,922 INFO L273 TraceCheckUtils]: 12: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,922 INFO L273 TraceCheckUtils]: 13: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,923 INFO L273 TraceCheckUtils]: 14: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,924 INFO L273 TraceCheckUtils]: 15: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {5031#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:28,925 INFO L273 TraceCheckUtils]: 16: Hoare triple {5031#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {5059#(= (bvadd main_~__VERIFIER_assert__cond~9 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:28,926 INFO L273 TraceCheckUtils]: 17: Hoare triple {5059#(= (bvadd main_~__VERIFIER_assert__cond~9 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~9; {5006#false} is VALID [2018-11-18 22:26:28,926 INFO L273 TraceCheckUtils]: 18: Hoare triple {5006#false} assume !false; {5006#false} is VALID [2018-11-18 22:26:28,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:28,927 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:28,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:28,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 22:26:28,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-11-18 22:26:28,930 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:28,930 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-18 22:26:28,957 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:28,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 22:26:28,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 22:26:28,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 22:26:28,958 INFO L87 Difference]: Start difference. First operand 77 states and 89 transitions. Second operand 4 states. [2018-11-18 22:26:29,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:29,503 INFO L93 Difference]: Finished difference Result 148 states and 165 transitions. [2018-11-18 22:26:29,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 22:26:29,503 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-11-18 22:26:29,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:29,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2018-11-18 22:26:29,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 22:26:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2018-11-18 22:26:29,509 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 151 transitions. [2018-11-18 22:26:29,717 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 151 edges. 151 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:29,721 INFO L225 Difference]: With dead ends: 148 [2018-11-18 22:26:29,721 INFO L226 Difference]: Without dead ends: 146 [2018-11-18 22:26:29,722 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:29,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-11-18 22:26:29,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 78. [2018-11-18 22:26:29,789 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:29,789 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states. Second operand 78 states. [2018-11-18 22:26:29,789 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 78 states. [2018-11-18 22:26:29,789 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 78 states. [2018-11-18 22:26:29,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:29,795 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2018-11-18 22:26:29,795 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2018-11-18 22:26:29,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:29,795 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:29,796 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 146 states. [2018-11-18 22:26:29,796 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 146 states. [2018-11-18 22:26:29,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:29,801 INFO L93 Difference]: Finished difference Result 146 states and 163 transitions. [2018-11-18 22:26:29,801 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 163 transitions. [2018-11-18 22:26:29,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:29,802 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:29,802 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:29,802 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:29,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2018-11-18 22:26:29,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 90 transitions. [2018-11-18 22:26:29,805 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 90 transitions. Word has length 19 [2018-11-18 22:26:29,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:29,806 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 90 transitions. [2018-11-18 22:26:29,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 22:26:29,806 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 90 transitions. [2018-11-18 22:26:29,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 22:26:29,806 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:29,807 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:29,807 INFO L423 AbstractCegarLoop]: === Iteration 11 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:29,807 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:29,808 INFO L82 PathProgramCache]: Analyzing trace with hash 356983956, now seen corresponding path program 1 times [2018-11-18 22:26:29,808 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:29,808 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:29,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:29,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:29,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:29,985 INFO L256 TraceCheckUtils]: 0: Hoare triple {5617#true} call ULTIMATE.init(); {5617#true} is VALID [2018-11-18 22:26:29,985 INFO L273 TraceCheckUtils]: 1: Hoare triple {5617#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {5617#true} is VALID [2018-11-18 22:26:29,986 INFO L273 TraceCheckUtils]: 2: Hoare triple {5617#true} assume true; {5617#true} is VALID [2018-11-18 22:26:29,986 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {5617#true} {5617#true} #139#return; {5617#true} is VALID [2018-11-18 22:26:29,986 INFO L256 TraceCheckUtils]: 4: Hoare triple {5617#true} call #t~ret4 := main(); {5617#true} is VALID [2018-11-18 22:26:29,987 INFO L273 TraceCheckUtils]: 5: Hoare triple {5617#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {5617#true} is VALID [2018-11-18 22:26:29,988 INFO L273 TraceCheckUtils]: 6: Hoare triple {5617#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {5640#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:29,988 INFO L273 TraceCheckUtils]: 7: Hoare triple {5640#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {5644#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:29,989 INFO L273 TraceCheckUtils]: 8: Hoare triple {5644#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {5644#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:29,989 INFO L273 TraceCheckUtils]: 9: Hoare triple {5644#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {5644#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:29,990 INFO L273 TraceCheckUtils]: 10: Hoare triple {5644#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:29,992 INFO L273 TraceCheckUtils]: 11: Hoare triple {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:29,993 INFO L273 TraceCheckUtils]: 12: Hoare triple {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:29,994 INFO L273 TraceCheckUtils]: 13: Hoare triple {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:29,996 INFO L273 TraceCheckUtils]: 14: Hoare triple {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:29,997 INFO L273 TraceCheckUtils]: 15: Hoare triple {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:29,999 INFO L273 TraceCheckUtils]: 16: Hoare triple {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:30,001 INFO L273 TraceCheckUtils]: 17: Hoare triple {5654#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {5676#(= (bvadd main_~__VERIFIER_assert__cond~10 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:30,002 INFO L273 TraceCheckUtils]: 18: Hoare triple {5676#(= (bvadd main_~__VERIFIER_assert__cond~10 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~10; {5618#false} is VALID [2018-11-18 22:26:30,003 INFO L273 TraceCheckUtils]: 19: Hoare triple {5618#false} assume !false; {5618#false} is VALID [2018-11-18 22:26:30,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:30,004 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:30,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:30,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 22:26:30,006 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-18 22:26:30,007 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:30,007 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-18 22:26:30,034 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:30,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 22:26:30,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 22:26:30,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 22:26:30,035 INFO L87 Difference]: Start difference. First operand 78 states and 90 transitions. Second operand 6 states. [2018-11-18 22:26:31,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:31,107 INFO L93 Difference]: Finished difference Result 151 states and 172 transitions. [2018-11-18 22:26:31,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 22:26:31,108 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2018-11-18 22:26:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:31,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2018-11-18 22:26:31,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:31,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2018-11-18 22:26:31,111 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 132 transitions. [2018-11-18 22:26:31,397 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:31,401 INFO L225 Difference]: With dead ends: 151 [2018-11-18 22:26:31,401 INFO L226 Difference]: Without dead ends: 149 [2018-11-18 22:26:31,402 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 22:26:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2018-11-18 22:26:31,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 83. [2018-11-18 22:26:31,703 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:31,703 INFO L82 GeneralOperation]: Start isEquivalent. First operand 149 states. Second operand 83 states. [2018-11-18 22:26:31,703 INFO L74 IsIncluded]: Start isIncluded. First operand 149 states. Second operand 83 states. [2018-11-18 22:26:31,703 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 83 states. [2018-11-18 22:26:31,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:31,707 INFO L93 Difference]: Finished difference Result 149 states and 170 transitions. [2018-11-18 22:26:31,707 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 170 transitions. [2018-11-18 22:26:31,708 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:31,708 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:31,708 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 149 states. [2018-11-18 22:26:31,708 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 149 states. [2018-11-18 22:26:31,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:31,711 INFO L93 Difference]: Finished difference Result 149 states and 170 transitions. [2018-11-18 22:26:31,711 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 170 transitions. [2018-11-18 22:26:31,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:31,712 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:31,712 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:31,712 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:31,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2018-11-18 22:26:31,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 95 transitions. [2018-11-18 22:26:31,713 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 95 transitions. Word has length 20 [2018-11-18 22:26:31,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:31,714 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 95 transitions. [2018-11-18 22:26:31,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 22:26:31,714 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 95 transitions. [2018-11-18 22:26:31,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 22:26:31,714 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:31,714 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:31,715 INFO L423 AbstractCegarLoop]: === Iteration 12 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:31,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:31,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1818396113, now seen corresponding path program 1 times [2018-11-18 22:26:31,715 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:31,715 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:31,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:31,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:31,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:31,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:31,919 INFO L256 TraceCheckUtils]: 0: Hoare triple {6245#true} call ULTIMATE.init(); {6245#true} is VALID [2018-11-18 22:26:31,919 INFO L273 TraceCheckUtils]: 1: Hoare triple {6245#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {6245#true} is VALID [2018-11-18 22:26:31,920 INFO L273 TraceCheckUtils]: 2: Hoare triple {6245#true} assume true; {6245#true} is VALID [2018-11-18 22:26:31,920 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {6245#true} {6245#true} #139#return; {6245#true} is VALID [2018-11-18 22:26:31,920 INFO L256 TraceCheckUtils]: 4: Hoare triple {6245#true} call #t~ret4 := main(); {6245#true} is VALID [2018-11-18 22:26:31,920 INFO L273 TraceCheckUtils]: 5: Hoare triple {6245#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {6245#true} is VALID [2018-11-18 22:26:31,921 INFO L273 TraceCheckUtils]: 6: Hoare triple {6245#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,921 INFO L273 TraceCheckUtils]: 7: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,922 INFO L273 TraceCheckUtils]: 8: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,922 INFO L273 TraceCheckUtils]: 9: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,923 INFO L273 TraceCheckUtils]: 10: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,923 INFO L273 TraceCheckUtils]: 11: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,924 INFO L273 TraceCheckUtils]: 12: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,928 INFO L273 TraceCheckUtils]: 13: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,928 INFO L273 TraceCheckUtils]: 14: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,929 INFO L273 TraceCheckUtils]: 15: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,935 INFO L273 TraceCheckUtils]: 16: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {6268#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,937 INFO L273 TraceCheckUtils]: 17: Hoare triple {6268#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {6302#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:31,938 INFO L273 TraceCheckUtils]: 18: Hoare triple {6302#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {6306#(= (bvadd main_~__VERIFIER_assert__cond~11 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:31,938 INFO L273 TraceCheckUtils]: 19: Hoare triple {6306#(= (bvadd main_~__VERIFIER_assert__cond~11 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~11; {6246#false} is VALID [2018-11-18 22:26:31,939 INFO L273 TraceCheckUtils]: 20: Hoare triple {6246#false} assume !false; {6246#false} is VALID [2018-11-18 22:26:31,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:31,940 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:31,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:31,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 22:26:31,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-11-18 22:26:31,942 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:31,943 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 22:26:31,966 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:31,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 22:26:31,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 22:26:31,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:31,967 INFO L87 Difference]: Start difference. First operand 83 states and 95 transitions. Second operand 5 states. [2018-11-18 22:26:33,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:33,557 INFO L93 Difference]: Finished difference Result 189 states and 219 transitions. [2018-11-18 22:26:33,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 22:26:33,557 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-11-18 22:26:33,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:33,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 22:26:33,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2018-11-18 22:26:33,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 22:26:33,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 159 transitions. [2018-11-18 22:26:33,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 159 transitions. [2018-11-18 22:26:34,215 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 159 edges. 159 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:34,219 INFO L225 Difference]: With dead ends: 189 [2018-11-18 22:26:34,220 INFO L226 Difference]: Without dead ends: 187 [2018-11-18 22:26:34,220 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 22:26:34,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2018-11-18 22:26:34,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 84. [2018-11-18 22:26:34,502 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:34,502 INFO L82 GeneralOperation]: Start isEquivalent. First operand 187 states. Second operand 84 states. [2018-11-18 22:26:34,502 INFO L74 IsIncluded]: Start isIncluded. First operand 187 states. Second operand 84 states. [2018-11-18 22:26:34,503 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 84 states. [2018-11-18 22:26:34,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:34,507 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2018-11-18 22:26:34,507 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 217 transitions. [2018-11-18 22:26:34,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:34,508 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:34,508 INFO L74 IsIncluded]: Start isIncluded. First operand 84 states. Second operand 187 states. [2018-11-18 22:26:34,508 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 187 states. [2018-11-18 22:26:34,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:34,512 INFO L93 Difference]: Finished difference Result 187 states and 217 transitions. [2018-11-18 22:26:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 217 transitions. [2018-11-18 22:26:34,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:34,513 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:34,513 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:34,514 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:34,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2018-11-18 22:26:34,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2018-11-18 22:26:34,516 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 21 [2018-11-18 22:26:34,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:34,516 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2018-11-18 22:26:34,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 22:26:34,516 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2018-11-18 22:26:34,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 22:26:34,517 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:34,517 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:34,518 INFO L423 AbstractCegarLoop]: === Iteration 13 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:34,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:34,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1663733890, now seen corresponding path program 1 times [2018-11-18 22:26:34,518 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:34,520 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:34,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:34,613 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:35,214 INFO L256 TraceCheckUtils]: 0: Hoare triple {6995#true} call ULTIMATE.init(); {6995#true} is VALID [2018-11-18 22:26:35,215 INFO L273 TraceCheckUtils]: 1: Hoare triple {6995#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {6995#true} is VALID [2018-11-18 22:26:35,215 INFO L273 TraceCheckUtils]: 2: Hoare triple {6995#true} assume true; {6995#true} is VALID [2018-11-18 22:26:35,216 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {6995#true} {6995#true} #139#return; {6995#true} is VALID [2018-11-18 22:26:35,216 INFO L256 TraceCheckUtils]: 4: Hoare triple {6995#true} call #t~ret4 := main(); {6995#true} is VALID [2018-11-18 22:26:35,216 INFO L273 TraceCheckUtils]: 5: Hoare triple {6995#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {6995#true} is VALID [2018-11-18 22:26:35,222 INFO L273 TraceCheckUtils]: 6: Hoare triple {6995#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {7018#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:35,223 INFO L273 TraceCheckUtils]: 7: Hoare triple {7018#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {7022#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,224 INFO L273 TraceCheckUtils]: 8: Hoare triple {7022#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {7022#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,224 INFO L273 TraceCheckUtils]: 9: Hoare triple {7022#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {7022#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,224 INFO L273 TraceCheckUtils]: 10: Hoare triple {7022#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,225 INFO L273 TraceCheckUtils]: 11: Hoare triple {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,242 INFO L273 TraceCheckUtils]: 12: Hoare triple {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,256 INFO L273 TraceCheckUtils]: 13: Hoare triple {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,265 INFO L273 TraceCheckUtils]: 14: Hoare triple {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,280 INFO L273 TraceCheckUtils]: 15: Hoare triple {7032#(and (not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)) (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {7048#(and (bvslt (_ bv0 32) main_~main__len~0) (not (bvslt (_ bv1 32) main_~main__len~0)) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:26:35,294 INFO L273 TraceCheckUtils]: 16: Hoare triple {7048#(and (bvslt (_ bv0 32) main_~main__len~0) (not (bvslt (_ bv1 32) main_~main__len~0)) (= (_ bv1 32) main_~main__i~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {6996#false} is VALID [2018-11-18 22:26:35,294 INFO L273 TraceCheckUtils]: 17: Hoare triple {6996#false} assume ~bvslt32(~main__j~0, ~main__limit~0); {6996#false} is VALID [2018-11-18 22:26:35,294 INFO L273 TraceCheckUtils]: 18: Hoare triple {6996#false} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {6996#false} is VALID [2018-11-18 22:26:35,295 INFO L273 TraceCheckUtils]: 19: Hoare triple {6996#false} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {6996#false} is VALID [2018-11-18 22:26:35,295 INFO L273 TraceCheckUtils]: 20: Hoare triple {6996#false} assume 0bv32 == ~__VERIFIER_assert__cond~1; {6996#false} is VALID [2018-11-18 22:26:35,295 INFO L273 TraceCheckUtils]: 21: Hoare triple {6996#false} assume !false; {6996#false} is VALID [2018-11-18 22:26:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:35,297 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:26:35,763 INFO L273 TraceCheckUtils]: 21: Hoare triple {6996#false} assume !false; {6996#false} is VALID [2018-11-18 22:26:35,764 INFO L273 TraceCheckUtils]: 20: Hoare triple {6996#false} assume 0bv32 == ~__VERIFIER_assert__cond~1; {6996#false} is VALID [2018-11-18 22:26:35,764 INFO L273 TraceCheckUtils]: 19: Hoare triple {6996#false} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {6996#false} is VALID [2018-11-18 22:26:35,764 INFO L273 TraceCheckUtils]: 18: Hoare triple {6996#false} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {6996#false} is VALID [2018-11-18 22:26:35,764 INFO L273 TraceCheckUtils]: 17: Hoare triple {6996#false} assume ~bvslt32(~main__j~0, ~main__limit~0); {6996#false} is VALID [2018-11-18 22:26:35,765 INFO L273 TraceCheckUtils]: 16: Hoare triple {7082#(not (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {6996#false} is VALID [2018-11-18 22:26:35,775 INFO L273 TraceCheckUtils]: 15: Hoare triple {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {7082#(not (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:26:35,776 INFO L273 TraceCheckUtils]: 14: Hoare triple {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:35,776 INFO L273 TraceCheckUtils]: 13: Hoare triple {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:35,777 INFO L273 TraceCheckUtils]: 12: Hoare triple {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:35,777 INFO L273 TraceCheckUtils]: 11: Hoare triple {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:35,777 INFO L273 TraceCheckUtils]: 10: Hoare triple {6995#true} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {7086#(not (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:26:35,778 INFO L273 TraceCheckUtils]: 9: Hoare triple {6995#true} assume ~bvslt32(~main__j~0, ~main__limit~0); {6995#true} is VALID [2018-11-18 22:26:35,778 INFO L273 TraceCheckUtils]: 8: Hoare triple {6995#true} assume ~bvslt32(~main__i~0, ~main__len~0); {6995#true} is VALID [2018-11-18 22:26:35,778 INFO L273 TraceCheckUtils]: 7: Hoare triple {6995#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {6995#true} is VALID [2018-11-18 22:26:35,778 INFO L273 TraceCheckUtils]: 6: Hoare triple {6995#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {6995#true} is VALID [2018-11-18 22:26:35,778 INFO L273 TraceCheckUtils]: 5: Hoare triple {6995#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {6995#true} is VALID [2018-11-18 22:26:35,778 INFO L256 TraceCheckUtils]: 4: Hoare triple {6995#true} call #t~ret4 := main(); {6995#true} is VALID [2018-11-18 22:26:35,778 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {6995#true} {6995#true} #139#return; {6995#true} is VALID [2018-11-18 22:26:35,779 INFO L273 TraceCheckUtils]: 2: Hoare triple {6995#true} assume true; {6995#true} is VALID [2018-11-18 22:26:35,779 INFO L273 TraceCheckUtils]: 1: Hoare triple {6995#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {6995#true} is VALID [2018-11-18 22:26:35,779 INFO L256 TraceCheckUtils]: 0: Hoare triple {6995#true} call ULTIMATE.init(); {6995#true} is VALID [2018-11-18 22:26:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:35,781 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 22:26:35,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2018-11-18 22:26:35,782 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-11-18 22:26:35,782 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:35,782 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-18 22:26:35,828 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:35,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 22:26:35,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 22:26:35,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 22:26:35,829 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand 8 states. [2018-11-18 22:26:36,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:36,791 INFO L93 Difference]: Finished difference Result 173 states and 197 transitions. [2018-11-18 22:26:36,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 22:26:36,791 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2018-11-18 22:26:36,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:36,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:26:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2018-11-18 22:26:36,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:26:36,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 149 transitions. [2018-11-18 22:26:36,795 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 149 transitions. [2018-11-18 22:26:37,387 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 149 edges. 149 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:37,389 INFO L225 Difference]: With dead ends: 173 [2018-11-18 22:26:37,390 INFO L226 Difference]: Without dead ends: 101 [2018-11-18 22:26:37,390 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 22:26:37,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2018-11-18 22:26:37,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 92. [2018-11-18 22:26:37,488 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:37,488 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 92 states. [2018-11-18 22:26:37,488 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 92 states. [2018-11-18 22:26:37,488 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 92 states. [2018-11-18 22:26:37,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:37,492 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2018-11-18 22:26:37,492 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2018-11-18 22:26:37,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:37,492 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:37,493 INFO L74 IsIncluded]: Start isIncluded. First operand 92 states. Second operand 101 states. [2018-11-18 22:26:37,493 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 101 states. [2018-11-18 22:26:37,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:37,495 INFO L93 Difference]: Finished difference Result 101 states and 110 transitions. [2018-11-18 22:26:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2018-11-18 22:26:37,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:37,496 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:37,496 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:37,496 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-18 22:26:37,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 104 transitions. [2018-11-18 22:26:37,498 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 104 transitions. Word has length 22 [2018-11-18 22:26:37,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:37,498 INFO L480 AbstractCegarLoop]: Abstraction has 92 states and 104 transitions. [2018-11-18 22:26:37,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 22:26:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 104 transitions. [2018-11-18 22:26:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 22:26:37,499 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:37,499 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:37,500 INFO L423 AbstractCegarLoop]: === Iteration 14 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:37,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:37,500 INFO L82 PathProgramCache]: Analyzing trace with hash -535701510, now seen corresponding path program 1 times [2018-11-18 22:26:37,500 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:37,500 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 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 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:37,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:37,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:37,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:37,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:38,178 WARN L180 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 22:26:38,294 INFO L256 TraceCheckUtils]: 0: Hoare triple {7640#true} call ULTIMATE.init(); {7640#true} is VALID [2018-11-18 22:26:38,295 INFO L273 TraceCheckUtils]: 1: Hoare triple {7640#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {7640#true} is VALID [2018-11-18 22:26:38,295 INFO L273 TraceCheckUtils]: 2: Hoare triple {7640#true} assume true; {7640#true} is VALID [2018-11-18 22:26:38,295 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {7640#true} {7640#true} #139#return; {7640#true} is VALID [2018-11-18 22:26:38,295 INFO L256 TraceCheckUtils]: 4: Hoare triple {7640#true} call #t~ret4 := main(); {7640#true} is VALID [2018-11-18 22:26:38,296 INFO L273 TraceCheckUtils]: 5: Hoare triple {7640#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {7640#true} is VALID [2018-11-18 22:26:38,298 INFO L273 TraceCheckUtils]: 6: Hoare triple {7640#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {7663#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:38,306 INFO L273 TraceCheckUtils]: 7: Hoare triple {7663#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {7667#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:38,306 INFO L273 TraceCheckUtils]: 8: Hoare triple {7667#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {7667#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:38,308 INFO L273 TraceCheckUtils]: 9: Hoare triple {7667#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,311 INFO L273 TraceCheckUtils]: 10: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,315 INFO L273 TraceCheckUtils]: 11: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,317 INFO L273 TraceCheckUtils]: 12: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,318 INFO L273 TraceCheckUtils]: 13: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,320 INFO L273 TraceCheckUtils]: 14: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,321 INFO L273 TraceCheckUtils]: 15: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,323 INFO L273 TraceCheckUtils]: 16: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:38,324 INFO L273 TraceCheckUtils]: 17: Hoare triple {7674#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {7699#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:38,324 INFO L273 TraceCheckUtils]: 18: Hoare triple {7699#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {7699#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:38,326 INFO L273 TraceCheckUtils]: 19: Hoare triple {7699#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {7706#(= (bvadd main_~__VERIFIER_assert__cond~12 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:38,334 INFO L273 TraceCheckUtils]: 20: Hoare triple {7706#(= (bvadd main_~__VERIFIER_assert__cond~12 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~12; {7641#false} is VALID [2018-11-18 22:26:38,335 INFO L273 TraceCheckUtils]: 21: Hoare triple {7641#false} assume !false; {7641#false} is VALID [2018-11-18 22:26:38,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:38,337 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:38,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:38,340 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 22:26:38,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 22:26:38,341 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:38,341 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-18 22:26:38,375 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:38,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 22:26:38,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 22:26:38,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 22:26:38,377 INFO L87 Difference]: Start difference. First operand 92 states and 104 transitions. Second operand 7 states. [2018-11-18 22:26:41,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:41,040 INFO L93 Difference]: Finished difference Result 321 states and 362 transitions. [2018-11-18 22:26:41,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 22:26:41,041 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 22:26:41,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:41,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 22:26:41,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 279 transitions. [2018-11-18 22:26:41,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 22:26:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 279 transitions. [2018-11-18 22:26:41,046 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 279 transitions. [2018-11-18 22:26:41,569 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 279 edges. 279 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:41,575 INFO L225 Difference]: With dead ends: 321 [2018-11-18 22:26:41,576 INFO L226 Difference]: Without dead ends: 252 [2018-11-18 22:26:41,576 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-18 22:26:41,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2018-11-18 22:26:41,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 100. [2018-11-18 22:26:41,699 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:41,699 INFO L82 GeneralOperation]: Start isEquivalent. First operand 252 states. Second operand 100 states. [2018-11-18 22:26:41,699 INFO L74 IsIncluded]: Start isIncluded. First operand 252 states. Second operand 100 states. [2018-11-18 22:26:41,699 INFO L87 Difference]: Start difference. First operand 252 states. Second operand 100 states. [2018-11-18 22:26:41,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:41,704 INFO L93 Difference]: Finished difference Result 252 states and 280 transitions. [2018-11-18 22:26:41,705 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 280 transitions. [2018-11-18 22:26:41,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:41,705 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:41,705 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 252 states. [2018-11-18 22:26:41,705 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 252 states. [2018-11-18 22:26:41,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:41,710 INFO L93 Difference]: Finished difference Result 252 states and 280 transitions. [2018-11-18 22:26:41,710 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 280 transitions. [2018-11-18 22:26:41,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:41,710 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:41,710 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:41,711 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:41,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-11-18 22:26:41,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2018-11-18 22:26:41,712 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 22 [2018-11-18 22:26:41,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:41,712 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2018-11-18 22:26:41,712 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 22:26:41,713 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2018-11-18 22:26:41,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 22:26:41,713 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:41,713 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:41,714 INFO L423 AbstractCegarLoop]: === Iteration 15 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:41,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:41,714 INFO L82 PathProgramCache]: Analyzing trace with hash 573125525, now seen corresponding path program 1 times [2018-11-18 22:26:41,714 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:41,714 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:41,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:41,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:41,835 INFO L256 TraceCheckUtils]: 0: Hoare triple {8707#true} call ULTIMATE.init(); {8707#true} is VALID [2018-11-18 22:26:41,836 INFO L273 TraceCheckUtils]: 1: Hoare triple {8707#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {8707#true} is VALID [2018-11-18 22:26:41,836 INFO L273 TraceCheckUtils]: 2: Hoare triple {8707#true} assume true; {8707#true} is VALID [2018-11-18 22:26:41,836 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {8707#true} {8707#true} #139#return; {8707#true} is VALID [2018-11-18 22:26:41,837 INFO L256 TraceCheckUtils]: 4: Hoare triple {8707#true} call #t~ret4 := main(); {8707#true} is VALID [2018-11-18 22:26:41,837 INFO L273 TraceCheckUtils]: 5: Hoare triple {8707#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {8707#true} is VALID [2018-11-18 22:26:41,837 INFO L273 TraceCheckUtils]: 6: Hoare triple {8707#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {8707#true} is VALID [2018-11-18 22:26:41,838 INFO L273 TraceCheckUtils]: 7: Hoare triple {8707#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,838 INFO L273 TraceCheckUtils]: 8: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,838 INFO L273 TraceCheckUtils]: 9: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,839 INFO L273 TraceCheckUtils]: 10: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,839 INFO L273 TraceCheckUtils]: 11: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,840 INFO L273 TraceCheckUtils]: 12: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,840 INFO L273 TraceCheckUtils]: 13: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,840 INFO L273 TraceCheckUtils]: 14: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,841 INFO L273 TraceCheckUtils]: 15: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,841 INFO L273 TraceCheckUtils]: 16: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {8733#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,842 INFO L273 TraceCheckUtils]: 17: Hoare triple {8733#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {8764#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,843 INFO L273 TraceCheckUtils]: 18: Hoare triple {8764#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {8764#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,844 INFO L273 TraceCheckUtils]: 19: Hoare triple {8764#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {8764#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:26:41,844 INFO L273 TraceCheckUtils]: 20: Hoare triple {8764#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {8774#(= (bvadd main_~__VERIFIER_assert__cond~13 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:41,845 INFO L273 TraceCheckUtils]: 21: Hoare triple {8774#(= (bvadd main_~__VERIFIER_assert__cond~13 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~13; {8708#false} is VALID [2018-11-18 22:26:41,846 INFO L273 TraceCheckUtils]: 22: Hoare triple {8708#false} assume !false; {8708#false} is VALID [2018-11-18 22:26:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:41,847 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:41,849 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:41,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 22:26:41,849 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-11-18 22:26:41,849 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:41,850 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-18 22:26:41,880 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:41,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 22:26:41,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 22:26:41,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 22:26:41,881 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 5 states. [2018-11-18 22:26:43,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:43,659 INFO L93 Difference]: Finished difference Result 256 states and 284 transitions. [2018-11-18 22:26:43,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 22:26:43,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-11-18 22:26:43,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 22:26:43,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2018-11-18 22:26:43,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 22:26:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 227 transitions. [2018-11-18 22:26:43,663 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 227 transitions. [2018-11-18 22:26:43,945 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 227 edges. 227 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:43,949 INFO L225 Difference]: With dead ends: 256 [2018-11-18 22:26:43,950 INFO L226 Difference]: Without dead ends: 254 [2018-11-18 22:26:43,950 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 22:26:43,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2018-11-18 22:26:44,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 101. [2018-11-18 22:26:44,109 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:44,109 INFO L82 GeneralOperation]: Start isEquivalent. First operand 254 states. Second operand 101 states. [2018-11-18 22:26:44,109 INFO L74 IsIncluded]: Start isIncluded. First operand 254 states. Second operand 101 states. [2018-11-18 22:26:44,110 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 101 states. [2018-11-18 22:26:44,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:44,115 INFO L93 Difference]: Finished difference Result 254 states and 282 transitions. [2018-11-18 22:26:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 282 transitions. [2018-11-18 22:26:44,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:44,116 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:44,116 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 254 states. [2018-11-18 22:26:44,116 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 254 states. [2018-11-18 22:26:44,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:44,121 INFO L93 Difference]: Finished difference Result 254 states and 282 transitions. [2018-11-18 22:26:44,121 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 282 transitions. [2018-11-18 22:26:44,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:44,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:44,122 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:44,122 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:44,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2018-11-18 22:26:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 116 transitions. [2018-11-18 22:26:44,123 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 116 transitions. Word has length 23 [2018-11-18 22:26:44,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:44,124 INFO L480 AbstractCegarLoop]: Abstraction has 101 states and 116 transitions. [2018-11-18 22:26:44,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 22:26:44,124 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 116 transitions. [2018-11-18 22:26:44,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 22:26:44,124 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:44,124 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:44,125 INFO L423 AbstractCegarLoop]: === Iteration 16 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:44,125 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:44,125 INFO L82 PathProgramCache]: Analyzing trace with hash 587025248, now seen corresponding path program 1 times [2018-11-18 22:26:44,125 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:44,126 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 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 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:44,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:44,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:44,367 INFO L256 TraceCheckUtils]: 0: Hoare triple {9700#true} call ULTIMATE.init(); {9700#true} is VALID [2018-11-18 22:26:44,368 INFO L273 TraceCheckUtils]: 1: Hoare triple {9700#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {9700#true} is VALID [2018-11-18 22:26:44,368 INFO L273 TraceCheckUtils]: 2: Hoare triple {9700#true} assume true; {9700#true} is VALID [2018-11-18 22:26:44,368 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {9700#true} {9700#true} #139#return; {9700#true} is VALID [2018-11-18 22:26:44,368 INFO L256 TraceCheckUtils]: 4: Hoare triple {9700#true} call #t~ret4 := main(); {9700#true} is VALID [2018-11-18 22:26:44,368 INFO L273 TraceCheckUtils]: 5: Hoare triple {9700#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {9700#true} is VALID [2018-11-18 22:26:44,369 INFO L273 TraceCheckUtils]: 6: Hoare triple {9700#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {9723#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:44,369 INFO L273 TraceCheckUtils]: 7: Hoare triple {9723#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {9727#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:44,370 INFO L273 TraceCheckUtils]: 8: Hoare triple {9727#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {9727#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:44,371 INFO L273 TraceCheckUtils]: 9: Hoare triple {9727#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,374 INFO L273 TraceCheckUtils]: 10: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,376 INFO L273 TraceCheckUtils]: 11: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,379 INFO L273 TraceCheckUtils]: 12: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,381 INFO L273 TraceCheckUtils]: 13: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,383 INFO L273 TraceCheckUtils]: 14: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,386 INFO L273 TraceCheckUtils]: 15: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,388 INFO L273 TraceCheckUtils]: 16: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:44,389 INFO L273 TraceCheckUtils]: 17: Hoare triple {9734#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:44,391 INFO L273 TraceCheckUtils]: 18: Hoare triple {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:44,393 INFO L273 TraceCheckUtils]: 19: Hoare triple {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:44,393 INFO L273 TraceCheckUtils]: 20: Hoare triple {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:44,395 INFO L273 TraceCheckUtils]: 21: Hoare triple {9759#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {9772#(= (bvadd main_~__VERIFIER_assert__cond~14 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:44,403 INFO L273 TraceCheckUtils]: 22: Hoare triple {9772#(= (bvadd main_~__VERIFIER_assert__cond~14 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~14; {9701#false} is VALID [2018-11-18 22:26:44,403 INFO L273 TraceCheckUtils]: 23: Hoare triple {9701#false} assume !false; {9701#false} is VALID [2018-11-18 22:26:44,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:44,405 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:44,412 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:44,413 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 22:26:44,413 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 22:26:44,413 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:44,413 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2018-11-18 22:26:44,463 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:44,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 22:26:44,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 22:26:44,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 22:26:44,464 INFO L87 Difference]: Start difference. First operand 101 states and 116 transitions. Second operand 7 states. [2018-11-18 22:26:47,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:47,271 INFO L93 Difference]: Finished difference Result 258 states and 286 transitions. [2018-11-18 22:26:47,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 22:26:47,272 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 22:26:47,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 22:26:47,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 233 transitions. [2018-11-18 22:26:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 22:26:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 233 transitions. [2018-11-18 22:26:47,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 233 transitions. [2018-11-18 22:26:47,744 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 233 edges. 233 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:47,749 INFO L225 Difference]: With dead ends: 258 [2018-11-18 22:26:47,749 INFO L226 Difference]: Without dead ends: 256 [2018-11-18 22:26:47,749 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-18 22:26:47,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-11-18 22:26:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 102. [2018-11-18 22:26:47,890 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:47,890 INFO L82 GeneralOperation]: Start isEquivalent. First operand 256 states. Second operand 102 states. [2018-11-18 22:26:47,890 INFO L74 IsIncluded]: Start isIncluded. First operand 256 states. Second operand 102 states. [2018-11-18 22:26:47,890 INFO L87 Difference]: Start difference. First operand 256 states. Second operand 102 states. [2018-11-18 22:26:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:47,896 INFO L93 Difference]: Finished difference Result 256 states and 284 transitions. [2018-11-18 22:26:47,896 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 284 transitions. [2018-11-18 22:26:47,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:47,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:47,897 INFO L74 IsIncluded]: Start isIncluded. First operand 102 states. Second operand 256 states. [2018-11-18 22:26:47,897 INFO L87 Difference]: Start difference. First operand 102 states. Second operand 256 states. [2018-11-18 22:26:47,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:47,902 INFO L93 Difference]: Finished difference Result 256 states and 284 transitions. [2018-11-18 22:26:47,903 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 284 transitions. [2018-11-18 22:26:47,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:47,903 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:47,903 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:47,903 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:47,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-11-18 22:26:47,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2018-11-18 22:26:47,906 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 24 [2018-11-18 22:26:47,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:47,906 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2018-11-18 22:26:47,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 22:26:47,906 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2018-11-18 22:26:47,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 22:26:47,907 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:47,907 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:47,907 INFO L423 AbstractCegarLoop]: === Iteration 17 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:47,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:47,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1017916667, now seen corresponding path program 1 times [2018-11-18 22:26:47,908 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:47,908 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:47,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:47,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:47,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:47,998 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:48,098 INFO L256 TraceCheckUtils]: 0: Hoare triple {10713#true} call ULTIMATE.init(); {10713#true} is VALID [2018-11-18 22:26:48,098 INFO L273 TraceCheckUtils]: 1: Hoare triple {10713#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {10713#true} is VALID [2018-11-18 22:26:48,098 INFO L273 TraceCheckUtils]: 2: Hoare triple {10713#true} assume true; {10713#true} is VALID [2018-11-18 22:26:48,099 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {10713#true} {10713#true} #139#return; {10713#true} is VALID [2018-11-18 22:26:48,099 INFO L256 TraceCheckUtils]: 4: Hoare triple {10713#true} call #t~ret4 := main(); {10713#true} is VALID [2018-11-18 22:26:48,099 INFO L273 TraceCheckUtils]: 5: Hoare triple {10713#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {10713#true} is VALID [2018-11-18 22:26:48,099 INFO L273 TraceCheckUtils]: 6: Hoare triple {10713#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {10713#true} is VALID [2018-11-18 22:26:48,100 INFO L273 TraceCheckUtils]: 7: Hoare triple {10713#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,100 INFO L273 TraceCheckUtils]: 8: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,102 INFO L273 TraceCheckUtils]: 9: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,102 INFO L273 TraceCheckUtils]: 10: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,107 INFO L273 TraceCheckUtils]: 11: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,107 INFO L273 TraceCheckUtils]: 12: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,109 INFO L273 TraceCheckUtils]: 13: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,109 INFO L273 TraceCheckUtils]: 14: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,112 INFO L273 TraceCheckUtils]: 15: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,112 INFO L273 TraceCheckUtils]: 16: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {10739#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,114 INFO L273 TraceCheckUtils]: 17: Hoare triple {10739#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {10770#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,114 INFO L273 TraceCheckUtils]: 18: Hoare triple {10770#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {10770#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,116 INFO L273 TraceCheckUtils]: 19: Hoare triple {10770#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {10770#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,116 INFO L273 TraceCheckUtils]: 20: Hoare triple {10770#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {10770#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,118 INFO L273 TraceCheckUtils]: 21: Hoare triple {10770#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {10783#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:26:48,118 INFO L273 TraceCheckUtils]: 22: Hoare triple {10783#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {10787#(= (bvadd main_~__VERIFIER_assert__cond~15 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:48,120 INFO L273 TraceCheckUtils]: 23: Hoare triple {10787#(= (bvadd main_~__VERIFIER_assert__cond~15 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~15; {10714#false} is VALID [2018-11-18 22:26:48,120 INFO L273 TraceCheckUtils]: 24: Hoare triple {10714#false} assume !false; {10714#false} is VALID [2018-11-18 22:26:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:48,121 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 22:26:48,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 22:26:48,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 22:26:48,123 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 22:26:48,124 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:48,124 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2018-11-18 22:26:48,191 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:48,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 22:26:48,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 22:26:48,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 22:26:48,191 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 6 states. [2018-11-18 22:26:50,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:50,519 INFO L93 Difference]: Finished difference Result 350 states and 388 transitions. [2018-11-18 22:26:50,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 22:26:50,519 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 22:26:50,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:50,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:50,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 317 transitions. [2018-11-18 22:26:50,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-18 22:26:50,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 317 transitions. [2018-11-18 22:26:50,523 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 317 transitions. [2018-11-18 22:26:50,906 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 317 edges. 317 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:50,914 INFO L225 Difference]: With dead ends: 350 [2018-11-18 22:26:50,914 INFO L226 Difference]: Without dead ends: 348 [2018-11-18 22:26:50,914 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 22:26:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-11-18 22:26:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 103. [2018-11-18 22:26:51,137 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:51,137 INFO L82 GeneralOperation]: Start isEquivalent. First operand 348 states. Second operand 103 states. [2018-11-18 22:26:51,137 INFO L74 IsIncluded]: Start isIncluded. First operand 348 states. Second operand 103 states. [2018-11-18 22:26:51,137 INFO L87 Difference]: Start difference. First operand 348 states. Second operand 103 states. [2018-11-18 22:26:51,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:51,148 INFO L93 Difference]: Finished difference Result 348 states and 386 transitions. [2018-11-18 22:26:51,148 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 386 transitions. [2018-11-18 22:26:51,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:51,149 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:51,149 INFO L74 IsIncluded]: Start isIncluded. First operand 103 states. Second operand 348 states. [2018-11-18 22:26:51,149 INFO L87 Difference]: Start difference. First operand 103 states. Second operand 348 states. [2018-11-18 22:26:51,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:51,160 INFO L93 Difference]: Finished difference Result 348 states and 386 transitions. [2018-11-18 22:26:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 386 transitions. [2018-11-18 22:26:51,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:51,161 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:51,161 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:51,161 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:51,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2018-11-18 22:26:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 118 transitions. [2018-11-18 22:26:51,163 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 118 transitions. Word has length 25 [2018-11-18 22:26:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:51,163 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 118 transitions. [2018-11-18 22:26:51,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 22:26:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 118 transitions. [2018-11-18 22:26:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 22:26:51,164 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:51,164 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:51,164 INFO L423 AbstractCegarLoop]: === Iteration 18 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:51,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:51,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1002377772, now seen corresponding path program 1 times [2018-11-18 22:26:51,165 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:51,165 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 19 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 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:51,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:51,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:51,297 INFO L256 TraceCheckUtils]: 0: Hoare triple {12007#true} call ULTIMATE.init(); {12007#true} is VALID [2018-11-18 22:26:51,297 INFO L273 TraceCheckUtils]: 1: Hoare triple {12007#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {12007#true} is VALID [2018-11-18 22:26:51,298 INFO L273 TraceCheckUtils]: 2: Hoare triple {12007#true} assume true; {12007#true} is VALID [2018-11-18 22:26:51,298 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {12007#true} {12007#true} #139#return; {12007#true} is VALID [2018-11-18 22:26:51,298 INFO L256 TraceCheckUtils]: 4: Hoare triple {12007#true} call #t~ret4 := main(); {12007#true} is VALID [2018-11-18 22:26:51,298 INFO L273 TraceCheckUtils]: 5: Hoare triple {12007#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {12007#true} is VALID [2018-11-18 22:26:51,299 INFO L273 TraceCheckUtils]: 6: Hoare triple {12007#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,299 INFO L273 TraceCheckUtils]: 7: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,300 INFO L273 TraceCheckUtils]: 8: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,300 INFO L273 TraceCheckUtils]: 9: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,300 INFO L273 TraceCheckUtils]: 10: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,301 INFO L273 TraceCheckUtils]: 11: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,301 INFO L273 TraceCheckUtils]: 12: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,301 INFO L273 TraceCheckUtils]: 13: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,302 INFO L273 TraceCheckUtils]: 14: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,303 INFO L273 TraceCheckUtils]: 15: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,303 INFO L273 TraceCheckUtils]: 16: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,304 INFO L273 TraceCheckUtils]: 17: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {12030#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,304 INFO L273 TraceCheckUtils]: 18: Hoare triple {12030#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {12067#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,305 INFO L273 TraceCheckUtils]: 19: Hoare triple {12067#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {12067#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,306 INFO L273 TraceCheckUtils]: 20: Hoare triple {12067#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {12067#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,306 INFO L273 TraceCheckUtils]: 21: Hoare triple {12067#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {12067#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,307 INFO L273 TraceCheckUtils]: 22: Hoare triple {12067#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {12080#(= (_ bv1 32) main_~__VERIFIER_assert__cond~1)} is VALID [2018-11-18 22:26:51,307 INFO L273 TraceCheckUtils]: 23: Hoare triple {12080#(= (_ bv1 32) main_~__VERIFIER_assert__cond~1)} assume 0bv32 == ~__VERIFIER_assert__cond~1; {12008#false} is VALID [2018-11-18 22:26:51,308 INFO L273 TraceCheckUtils]: 24: Hoare triple {12008#false} assume !false; {12008#false} is VALID [2018-11-18 22:26:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:51,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:26:51,360 INFO L273 TraceCheckUtils]: 24: Hoare triple {12008#false} assume !false; {12008#false} is VALID [2018-11-18 22:26:51,361 INFO L273 TraceCheckUtils]: 23: Hoare triple {12090#(not (= main_~__VERIFIER_assert__cond~1 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~1; {12008#false} is VALID [2018-11-18 22:26:51,362 INFO L273 TraceCheckUtils]: 22: Hoare triple {12094#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {12090#(not (= main_~__VERIFIER_assert__cond~1 (_ bv0 32)))} is VALID [2018-11-18 22:26:51,362 INFO L273 TraceCheckUtils]: 21: Hoare triple {12094#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {12094#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,363 INFO L273 TraceCheckUtils]: 20: Hoare triple {12094#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {12094#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,363 INFO L273 TraceCheckUtils]: 19: Hoare triple {12094#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {12094#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,367 INFO L273 TraceCheckUtils]: 18: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {12094#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:51,367 INFO L273 TraceCheckUtils]: 17: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,367 INFO L273 TraceCheckUtils]: 16: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,368 INFO L273 TraceCheckUtils]: 15: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,368 INFO L273 TraceCheckUtils]: 14: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,368 INFO L273 TraceCheckUtils]: 13: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,369 INFO L273 TraceCheckUtils]: 12: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,369 INFO L273 TraceCheckUtils]: 11: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,369 INFO L273 TraceCheckUtils]: 10: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,372 INFO L273 TraceCheckUtils]: 9: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,373 INFO L273 TraceCheckUtils]: 8: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,373 INFO L273 TraceCheckUtils]: 7: Hoare triple {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,373 INFO L273 TraceCheckUtils]: 6: Hoare triple {12007#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {12107#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:51,374 INFO L273 TraceCheckUtils]: 5: Hoare triple {12007#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {12007#true} is VALID [2018-11-18 22:26:51,374 INFO L256 TraceCheckUtils]: 4: Hoare triple {12007#true} call #t~ret4 := main(); {12007#true} is VALID [2018-11-18 22:26:51,374 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {12007#true} {12007#true} #139#return; {12007#true} is VALID [2018-11-18 22:26:51,374 INFO L273 TraceCheckUtils]: 2: Hoare triple {12007#true} assume true; {12007#true} is VALID [2018-11-18 22:26:51,374 INFO L273 TraceCheckUtils]: 1: Hoare triple {12007#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {12007#true} is VALID [2018-11-18 22:26:51,375 INFO L256 TraceCheckUtils]: 0: Hoare triple {12007#true} call ULTIMATE.init(); {12007#true} is VALID [2018-11-18 22:26:51,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:51,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:26:51,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-18 22:26:51,379 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-18 22:26:51,379 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:51,379 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-18 22:26:51,437 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:51,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 22:26:51,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 22:26:51,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 22:26:51,438 INFO L87 Difference]: Start difference. First operand 103 states and 118 transitions. Second operand 8 states. [2018-11-18 22:26:53,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:53,210 INFO L93 Difference]: Finished difference Result 287 states and 330 transitions. [2018-11-18 22:26:53,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 22:26:53,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-11-18 22:26:53,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:53,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:26:53,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 195 transitions. [2018-11-18 22:26:53,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:26:53,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 195 transitions. [2018-11-18 22:26:53,216 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 195 transitions. [2018-11-18 22:26:53,660 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 195 edges. 195 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:53,666 INFO L225 Difference]: With dead ends: 287 [2018-11-18 22:26:53,666 INFO L226 Difference]: Without dead ends: 285 [2018-11-18 22:26:53,666 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-11-18 22:26:53,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2018-11-18 22:26:53,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 166. [2018-11-18 22:26:53,972 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:53,972 INFO L82 GeneralOperation]: Start isEquivalent. First operand 285 states. Second operand 166 states. [2018-11-18 22:26:53,972 INFO L74 IsIncluded]: Start isIncluded. First operand 285 states. Second operand 166 states. [2018-11-18 22:26:53,972 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 166 states. [2018-11-18 22:26:53,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:53,977 INFO L93 Difference]: Finished difference Result 285 states and 325 transitions. [2018-11-18 22:26:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 325 transitions. [2018-11-18 22:26:53,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:53,978 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:53,978 INFO L74 IsIncluded]: Start isIncluded. First operand 166 states. Second operand 285 states. [2018-11-18 22:26:53,978 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 285 states. [2018-11-18 22:26:53,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:53,983 INFO L93 Difference]: Finished difference Result 285 states and 325 transitions. [2018-11-18 22:26:53,983 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 325 transitions. [2018-11-18 22:26:53,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:53,984 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:53,984 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:53,984 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:53,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2018-11-18 22:26:53,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 207 transitions. [2018-11-18 22:26:53,987 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 207 transitions. Word has length 25 [2018-11-18 22:26:53,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:53,987 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 207 transitions. [2018-11-18 22:26:53,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 22:26:53,988 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 207 transitions. [2018-11-18 22:26:53,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-18 22:26:53,988 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:53,988 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:53,989 INFO L423 AbstractCegarLoop]: === Iteration 19 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:53,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:53,989 INFO L82 PathProgramCache]: Analyzing trace with hash -910704933, now seen corresponding path program 1 times [2018-11-18 22:26:53,989 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:53,989 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 20 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 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:54,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:54,070 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:54,123 INFO L256 TraceCheckUtils]: 0: Hoare triple {13264#true} call ULTIMATE.init(); {13264#true} is VALID [2018-11-18 22:26:54,124 INFO L273 TraceCheckUtils]: 1: Hoare triple {13264#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {13264#true} is VALID [2018-11-18 22:26:54,124 INFO L273 TraceCheckUtils]: 2: Hoare triple {13264#true} assume true; {13264#true} is VALID [2018-11-18 22:26:54,124 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {13264#true} {13264#true} #139#return; {13264#true} is VALID [2018-11-18 22:26:54,124 INFO L256 TraceCheckUtils]: 4: Hoare triple {13264#true} call #t~ret4 := main(); {13264#true} is VALID [2018-11-18 22:26:54,124 INFO L273 TraceCheckUtils]: 5: Hoare triple {13264#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {13264#true} is VALID [2018-11-18 22:26:54,125 INFO L273 TraceCheckUtils]: 6: Hoare triple {13264#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,126 INFO L273 TraceCheckUtils]: 7: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,126 INFO L273 TraceCheckUtils]: 8: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,127 INFO L273 TraceCheckUtils]: 9: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,127 INFO L273 TraceCheckUtils]: 10: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,128 INFO L273 TraceCheckUtils]: 11: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,128 INFO L273 TraceCheckUtils]: 12: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,128 INFO L273 TraceCheckUtils]: 13: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,128 INFO L273 TraceCheckUtils]: 14: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,129 INFO L273 TraceCheckUtils]: 15: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,129 INFO L273 TraceCheckUtils]: 16: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,130 INFO L273 TraceCheckUtils]: 17: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {13287#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,130 INFO L273 TraceCheckUtils]: 18: Hoare triple {13287#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {13324#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,131 INFO L273 TraceCheckUtils]: 19: Hoare triple {13324#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {13324#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,131 INFO L273 TraceCheckUtils]: 20: Hoare triple {13324#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {13324#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,132 INFO L273 TraceCheckUtils]: 21: Hoare triple {13324#(= (_ bv1 32) main_~main__i~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {13324#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,133 INFO L273 TraceCheckUtils]: 22: Hoare triple {13324#(= (_ bv1 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {13324#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,134 INFO L273 TraceCheckUtils]: 23: Hoare triple {13324#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {13340#(= (_ bv1 32) main_~__VERIFIER_assert__cond~3)} is VALID [2018-11-18 22:26:54,134 INFO L273 TraceCheckUtils]: 24: Hoare triple {13340#(= (_ bv1 32) main_~__VERIFIER_assert__cond~3)} assume 0bv32 == ~__VERIFIER_assert__cond~3; {13265#false} is VALID [2018-11-18 22:26:54,135 INFO L273 TraceCheckUtils]: 25: Hoare triple {13265#false} assume !false; {13265#false} is VALID [2018-11-18 22:26:54,136 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:54,136 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:26:54,246 INFO L273 TraceCheckUtils]: 25: Hoare triple {13265#false} assume !false; {13265#false} is VALID [2018-11-18 22:26:54,247 INFO L273 TraceCheckUtils]: 24: Hoare triple {13350#(not (= main_~__VERIFIER_assert__cond~3 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~3; {13265#false} is VALID [2018-11-18 22:26:54,247 INFO L273 TraceCheckUtils]: 23: Hoare triple {13354#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {13350#(not (= main_~__VERIFIER_assert__cond~3 (_ bv0 32)))} is VALID [2018-11-18 22:26:54,247 INFO L273 TraceCheckUtils]: 22: Hoare triple {13354#(bvsle (_ bv0 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {13354#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,248 INFO L273 TraceCheckUtils]: 21: Hoare triple {13354#(bvsle (_ bv0 32) main_~main__i~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {13354#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,248 INFO L273 TraceCheckUtils]: 20: Hoare triple {13354#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {13354#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,249 INFO L273 TraceCheckUtils]: 19: Hoare triple {13354#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {13354#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,252 INFO L273 TraceCheckUtils]: 18: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {13354#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:26:54,253 INFO L273 TraceCheckUtils]: 17: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,253 INFO L273 TraceCheckUtils]: 16: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,253 INFO L273 TraceCheckUtils]: 15: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,254 INFO L273 TraceCheckUtils]: 14: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,254 INFO L273 TraceCheckUtils]: 13: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,256 INFO L273 TraceCheckUtils]: 12: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,257 INFO L273 TraceCheckUtils]: 11: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,257 INFO L273 TraceCheckUtils]: 10: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,257 INFO L273 TraceCheckUtils]: 9: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,258 INFO L273 TraceCheckUtils]: 8: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,258 INFO L273 TraceCheckUtils]: 7: Hoare triple {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,258 INFO L273 TraceCheckUtils]: 6: Hoare triple {13264#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {13370#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:26:54,259 INFO L273 TraceCheckUtils]: 5: Hoare triple {13264#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {13264#true} is VALID [2018-11-18 22:26:54,259 INFO L256 TraceCheckUtils]: 4: Hoare triple {13264#true} call #t~ret4 := main(); {13264#true} is VALID [2018-11-18 22:26:54,259 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {13264#true} {13264#true} #139#return; {13264#true} is VALID [2018-11-18 22:26:54,259 INFO L273 TraceCheckUtils]: 2: Hoare triple {13264#true} assume true; {13264#true} is VALID [2018-11-18 22:26:54,259 INFO L273 TraceCheckUtils]: 1: Hoare triple {13264#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {13264#true} is VALID [2018-11-18 22:26:54,259 INFO L256 TraceCheckUtils]: 0: Hoare triple {13264#true} call ULTIMATE.init(); {13264#true} is VALID [2018-11-18 22:26:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:54,262 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:26:54,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-18 22:26:54,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-11-18 22:26:54,264 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:54,264 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-18 22:26:54,326 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:54,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 22:26:54,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 22:26:54,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 22:26:54,327 INFO L87 Difference]: Start difference. First operand 166 states and 207 transitions. Second operand 8 states. [2018-11-18 22:26:56,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:56,544 INFO L93 Difference]: Finished difference Result 419 states and 483 transitions. [2018-11-18 22:26:56,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 22:26:56,545 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-11-18 22:26:56,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:26:56,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:26:56,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 280 transitions. [2018-11-18 22:26:56,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:26:56,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 280 transitions. [2018-11-18 22:26:56,549 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 280 transitions. [2018-11-18 22:26:56,918 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 280 edges. 280 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:56,929 INFO L225 Difference]: With dead ends: 419 [2018-11-18 22:26:56,929 INFO L226 Difference]: Without dead ends: 409 [2018-11-18 22:26:56,929 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2018-11-18 22:26:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2018-11-18 22:26:57,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 169. [2018-11-18 22:26:57,274 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:26:57,274 INFO L82 GeneralOperation]: Start isEquivalent. First operand 409 states. Second operand 169 states. [2018-11-18 22:26:57,274 INFO L74 IsIncluded]: Start isIncluded. First operand 409 states. Second operand 169 states. [2018-11-18 22:26:57,274 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 169 states. [2018-11-18 22:26:57,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:57,285 INFO L93 Difference]: Finished difference Result 409 states and 465 transitions. [2018-11-18 22:26:57,285 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 465 transitions. [2018-11-18 22:26:57,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:57,286 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:57,286 INFO L74 IsIncluded]: Start isIncluded. First operand 169 states. Second operand 409 states. [2018-11-18 22:26:57,286 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 409 states. [2018-11-18 22:26:57,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:26:57,296 INFO L93 Difference]: Finished difference Result 409 states and 465 transitions. [2018-11-18 22:26:57,296 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 465 transitions. [2018-11-18 22:26:57,297 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:26:57,297 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:26:57,297 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:26:57,297 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:26:57,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-11-18 22:26:57,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 206 transitions. [2018-11-18 22:26:57,300 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 206 transitions. Word has length 26 [2018-11-18 22:26:57,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:26:57,300 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 206 transitions. [2018-11-18 22:26:57,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 22:26:57,301 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 206 transitions. [2018-11-18 22:26:57,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-18 22:26:57,301 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:26:57,301 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:26:57,302 INFO L423 AbstractCegarLoop]: === Iteration 20 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:26:57,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:26:57,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1832921243, now seen corresponding path program 1 times [2018-11-18 22:26:57,302 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:26:57,302 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 21 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 21 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:26:57,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:26:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:26:57,366 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:26:57,519 INFO L256 TraceCheckUtils]: 0: Hoare triple {14929#true} call ULTIMATE.init(); {14929#true} is VALID [2018-11-18 22:26:57,519 INFO L273 TraceCheckUtils]: 1: Hoare triple {14929#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {14929#true} is VALID [2018-11-18 22:26:57,519 INFO L273 TraceCheckUtils]: 2: Hoare triple {14929#true} assume true; {14929#true} is VALID [2018-11-18 22:26:57,520 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {14929#true} {14929#true} #139#return; {14929#true} is VALID [2018-11-18 22:26:57,520 INFO L256 TraceCheckUtils]: 4: Hoare triple {14929#true} call #t~ret4 := main(); {14929#true} is VALID [2018-11-18 22:26:57,520 INFO L273 TraceCheckUtils]: 5: Hoare triple {14929#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {14929#true} is VALID [2018-11-18 22:26:57,520 INFO L273 TraceCheckUtils]: 6: Hoare triple {14929#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {14952#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:57,521 INFO L273 TraceCheckUtils]: 7: Hoare triple {14952#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {14956#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:57,521 INFO L273 TraceCheckUtils]: 8: Hoare triple {14956#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {14956#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:57,522 INFO L273 TraceCheckUtils]: 9: Hoare triple {14956#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,525 INFO L273 TraceCheckUtils]: 10: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,527 INFO L273 TraceCheckUtils]: 11: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,529 INFO L273 TraceCheckUtils]: 12: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,532 INFO L273 TraceCheckUtils]: 13: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,534 INFO L273 TraceCheckUtils]: 14: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,535 INFO L273 TraceCheckUtils]: 15: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,536 INFO L273 TraceCheckUtils]: 16: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,538 INFO L273 TraceCheckUtils]: 17: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:26:57,539 INFO L273 TraceCheckUtils]: 18: Hoare triple {14963#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:57,540 INFO L273 TraceCheckUtils]: 19: Hoare triple {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__i~0, ~main__len~0); {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:57,541 INFO L273 TraceCheckUtils]: 20: Hoare triple {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__j~0, ~main__limit~0); {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:57,541 INFO L273 TraceCheckUtils]: 21: Hoare triple {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:57,542 INFO L273 TraceCheckUtils]: 22: Hoare triple {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:57,543 INFO L273 TraceCheckUtils]: 23: Hoare triple {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:26:57,545 INFO L273 TraceCheckUtils]: 24: Hoare triple {14991#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {15010#(= (bvadd main_~__VERIFIER_assert__cond~4 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:26:57,546 INFO L273 TraceCheckUtils]: 25: Hoare triple {15010#(= (bvadd main_~__VERIFIER_assert__cond~4 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~4; {14930#false} is VALID [2018-11-18 22:26:57,546 INFO L273 TraceCheckUtils]: 26: Hoare triple {14930#false} assume !false; {14930#false} is VALID [2018-11-18 22:26:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:57,548 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:26:57,825 INFO L273 TraceCheckUtils]: 26: Hoare triple {14930#false} assume !false; {14930#false} is VALID [2018-11-18 22:26:57,826 INFO L273 TraceCheckUtils]: 25: Hoare triple {15020#(not (= main_~__VERIFIER_assert__cond~4 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~4; {14930#false} is VALID [2018-11-18 22:26:57,827 INFO L273 TraceCheckUtils]: 24: Hoare triple {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {15020#(not (= main_~__VERIFIER_assert__cond~4 (_ bv0 32)))} is VALID [2018-11-18 22:26:57,827 INFO L273 TraceCheckUtils]: 23: Hoare triple {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,828 INFO L273 TraceCheckUtils]: 22: Hoare triple {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,828 INFO L273 TraceCheckUtils]: 21: Hoare triple {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,829 INFO L273 TraceCheckUtils]: 20: Hoare triple {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,830 INFO L273 TraceCheckUtils]: 19: Hoare triple {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,830 INFO L273 TraceCheckUtils]: 18: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {15024#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,831 INFO L273 TraceCheckUtils]: 17: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,831 INFO L273 TraceCheckUtils]: 16: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,832 INFO L273 TraceCheckUtils]: 15: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,832 INFO L273 TraceCheckUtils]: 14: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,833 INFO L273 TraceCheckUtils]: 13: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,833 INFO L273 TraceCheckUtils]: 12: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,834 INFO L273 TraceCheckUtils]: 11: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,834 INFO L273 TraceCheckUtils]: 10: Hoare triple {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,835 INFO L273 TraceCheckUtils]: 9: Hoare triple {15071#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {15043#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:26:57,836 INFO L273 TraceCheckUtils]: 8: Hoare triple {15071#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {15071#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:57,836 INFO L273 TraceCheckUtils]: 7: Hoare triple {15078#(or (bvslt (_ bv1 32) main_~main__bufsize~0) (not (bvslt (_ bv0 32) main_~main__limit~0)))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {15071#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:26:57,838 INFO L273 TraceCheckUtils]: 6: Hoare triple {14929#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {15078#(or (bvslt (_ bv1 32) main_~main__bufsize~0) (not (bvslt (_ bv0 32) main_~main__limit~0)))} is VALID [2018-11-18 22:26:57,839 INFO L273 TraceCheckUtils]: 5: Hoare triple {14929#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {14929#true} is VALID [2018-11-18 22:26:57,839 INFO L256 TraceCheckUtils]: 4: Hoare triple {14929#true} call #t~ret4 := main(); {14929#true} is VALID [2018-11-18 22:26:57,839 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {14929#true} {14929#true} #139#return; {14929#true} is VALID [2018-11-18 22:26:57,839 INFO L273 TraceCheckUtils]: 2: Hoare triple {14929#true} assume true; {14929#true} is VALID [2018-11-18 22:26:57,840 INFO L273 TraceCheckUtils]: 1: Hoare triple {14929#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {14929#true} is VALID [2018-11-18 22:26:57,840 INFO L256 TraceCheckUtils]: 0: Hoare triple {14929#true} call ULTIMATE.init(); {14929#true} is VALID [2018-11-18 22:26:57,841 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:26:57,843 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:26:57,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-18 22:26:57,843 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-11-18 22:26:57,843 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:26:57,843 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2018-11-18 22:26:57,915 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:26:57,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 22:26:57,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 22:26:57,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-11-18 22:26:57,916 INFO L87 Difference]: Start difference. First operand 169 states and 206 transitions. Second operand 12 states. [2018-11-18 22:27:01,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:01,481 INFO L93 Difference]: Finished difference Result 354 states and 413 transitions. [2018-11-18 22:27:01,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 22:27:01,481 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-11-18 22:27:01,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:01,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 22:27:01,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 225 transitions. [2018-11-18 22:27:01,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 22:27:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 225 transitions. [2018-11-18 22:27:01,484 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 225 transitions. [2018-11-18 22:27:02,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 225 edges. 225 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:02,161 INFO L225 Difference]: With dead ends: 354 [2018-11-18 22:27:02,161 INFO L226 Difference]: Without dead ends: 352 [2018-11-18 22:27:02,162 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2018-11-18 22:27:02,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-11-18 22:27:02,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 167. [2018-11-18 22:27:02,470 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:02,470 INFO L82 GeneralOperation]: Start isEquivalent. First operand 352 states. Second operand 167 states. [2018-11-18 22:27:02,470 INFO L74 IsIncluded]: Start isIncluded. First operand 352 states. Second operand 167 states. [2018-11-18 22:27:02,470 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 167 states. [2018-11-18 22:27:02,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:02,477 INFO L93 Difference]: Finished difference Result 352 states and 406 transitions. [2018-11-18 22:27:02,477 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 406 transitions. [2018-11-18 22:27:02,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:02,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:02,478 INFO L74 IsIncluded]: Start isIncluded. First operand 167 states. Second operand 352 states. [2018-11-18 22:27:02,478 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 352 states. [2018-11-18 22:27:02,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:02,485 INFO L93 Difference]: Finished difference Result 352 states and 406 transitions. [2018-11-18 22:27:02,485 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 406 transitions. [2018-11-18 22:27:02,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:02,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:02,486 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:02,486 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:02,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-18 22:27:02,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 202 transitions. [2018-11-18 22:27:02,489 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 202 transitions. Word has length 27 [2018-11-18 22:27:02,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:02,490 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 202 transitions. [2018-11-18 22:27:02,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 22:27:02,490 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 202 transitions. [2018-11-18 22:27:02,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 22:27:02,490 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:02,490 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:02,491 INFO L423 AbstractCegarLoop]: === Iteration 21 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:02,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:02,491 INFO L82 PathProgramCache]: Analyzing trace with hash 985986785, now seen corresponding path program 1 times [2018-11-18 22:27:02,492 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:02,492 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 22 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 22 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:02,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:02,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:02,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:02,643 INFO L256 TraceCheckUtils]: 0: Hoare triple {16437#true} call ULTIMATE.init(); {16437#true} is VALID [2018-11-18 22:27:02,644 INFO L273 TraceCheckUtils]: 1: Hoare triple {16437#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {16437#true} is VALID [2018-11-18 22:27:02,644 INFO L273 TraceCheckUtils]: 2: Hoare triple {16437#true} assume true; {16437#true} is VALID [2018-11-18 22:27:02,644 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {16437#true} {16437#true} #139#return; {16437#true} is VALID [2018-11-18 22:27:02,644 INFO L256 TraceCheckUtils]: 4: Hoare triple {16437#true} call #t~ret4 := main(); {16437#true} is VALID [2018-11-18 22:27:02,644 INFO L273 TraceCheckUtils]: 5: Hoare triple {16437#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {16437#true} is VALID [2018-11-18 22:27:02,645 INFO L273 TraceCheckUtils]: 6: Hoare triple {16437#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {16437#true} is VALID [2018-11-18 22:27:02,645 INFO L273 TraceCheckUtils]: 7: Hoare triple {16437#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,646 INFO L273 TraceCheckUtils]: 8: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,646 INFO L273 TraceCheckUtils]: 9: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,647 INFO L273 TraceCheckUtils]: 10: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,647 INFO L273 TraceCheckUtils]: 11: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,647 INFO L273 TraceCheckUtils]: 12: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,648 INFO L273 TraceCheckUtils]: 13: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,648 INFO L273 TraceCheckUtils]: 14: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,648 INFO L273 TraceCheckUtils]: 15: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,649 INFO L273 TraceCheckUtils]: 16: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,649 INFO L273 TraceCheckUtils]: 17: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {16463#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,651 INFO L273 TraceCheckUtils]: 18: Hoare triple {16463#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {16497#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,651 INFO L273 TraceCheckUtils]: 19: Hoare triple {16497#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {16497#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,652 INFO L273 TraceCheckUtils]: 20: Hoare triple {16497#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {16497#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,652 INFO L273 TraceCheckUtils]: 21: Hoare triple {16497#(= (_ bv1 32) main_~main__j~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {16497#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,666 INFO L273 TraceCheckUtils]: 22: Hoare triple {16497#(= (_ bv1 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {16497#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,667 INFO L273 TraceCheckUtils]: 23: Hoare triple {16497#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {16497#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,667 INFO L273 TraceCheckUtils]: 24: Hoare triple {16497#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {16497#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,668 INFO L273 TraceCheckUtils]: 25: Hoare triple {16497#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {16519#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:02,668 INFO L273 TraceCheckUtils]: 26: Hoare triple {16519#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~5; {16438#false} is VALID [2018-11-18 22:27:02,668 INFO L273 TraceCheckUtils]: 27: Hoare triple {16438#false} assume !false; {16438#false} is VALID [2018-11-18 22:27:02,669 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:02,669 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:02,735 INFO L273 TraceCheckUtils]: 27: Hoare triple {16438#false} assume !false; {16438#false} is VALID [2018-11-18 22:27:02,735 INFO L273 TraceCheckUtils]: 26: Hoare triple {16529#(not (= main_~__VERIFIER_assert__cond~5 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~5; {16438#false} is VALID [2018-11-18 22:27:02,736 INFO L273 TraceCheckUtils]: 25: Hoare triple {16533#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {16529#(not (= main_~__VERIFIER_assert__cond~5 (_ bv0 32)))} is VALID [2018-11-18 22:27:02,737 INFO L273 TraceCheckUtils]: 24: Hoare triple {16533#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {16533#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,737 INFO L273 TraceCheckUtils]: 23: Hoare triple {16533#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {16533#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,738 INFO L273 TraceCheckUtils]: 22: Hoare triple {16533#(bvsle (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {16533#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,738 INFO L273 TraceCheckUtils]: 21: Hoare triple {16533#(bvsle (_ bv0 32) main_~main__j~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {16533#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,739 INFO L273 TraceCheckUtils]: 20: Hoare triple {16533#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {16533#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,739 INFO L273 TraceCheckUtils]: 19: Hoare triple {16533#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {16533#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,740 INFO L273 TraceCheckUtils]: 18: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {16533#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:02,740 INFO L273 TraceCheckUtils]: 17: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,741 INFO L273 TraceCheckUtils]: 16: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,742 INFO L273 TraceCheckUtils]: 15: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,742 INFO L273 TraceCheckUtils]: 14: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,742 INFO L273 TraceCheckUtils]: 13: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,743 INFO L273 TraceCheckUtils]: 12: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,743 INFO L273 TraceCheckUtils]: 11: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,744 INFO L273 TraceCheckUtils]: 10: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,744 INFO L273 TraceCheckUtils]: 9: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,745 INFO L273 TraceCheckUtils]: 8: Hoare triple {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,746 INFO L273 TraceCheckUtils]: 7: Hoare triple {16437#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {16555#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:02,746 INFO L273 TraceCheckUtils]: 6: Hoare triple {16437#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {16437#true} is VALID [2018-11-18 22:27:02,746 INFO L273 TraceCheckUtils]: 5: Hoare triple {16437#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {16437#true} is VALID [2018-11-18 22:27:02,746 INFO L256 TraceCheckUtils]: 4: Hoare triple {16437#true} call #t~ret4 := main(); {16437#true} is VALID [2018-11-18 22:27:02,746 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {16437#true} {16437#true} #139#return; {16437#true} is VALID [2018-11-18 22:27:02,747 INFO L273 TraceCheckUtils]: 2: Hoare triple {16437#true} assume true; {16437#true} is VALID [2018-11-18 22:27:02,747 INFO L273 TraceCheckUtils]: 1: Hoare triple {16437#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {16437#true} is VALID [2018-11-18 22:27:02,747 INFO L256 TraceCheckUtils]: 0: Hoare triple {16437#true} call ULTIMATE.init(); {16437#true} is VALID [2018-11-18 22:27:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:02,750 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:02,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-18 22:27:02,751 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-11-18 22:27:02,751 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:02,751 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-18 22:27:02,808 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 48 edges. 48 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:02,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 22:27:02,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 22:27:02,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 22:27:02,809 INFO L87 Difference]: Start difference. First operand 167 states and 202 transitions. Second operand 8 states. [2018-11-18 22:27:06,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:06,334 INFO L93 Difference]: Finished difference Result 584 states and 664 transitions. [2018-11-18 22:27:06,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 22:27:06,334 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 28 [2018-11-18 22:27:06,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:06,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:27:06,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 406 transitions. [2018-11-18 22:27:06,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:27:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 406 transitions. [2018-11-18 22:27:06,340 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 406 transitions. [2018-11-18 22:27:06,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 406 edges. 406 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:06,892 INFO L225 Difference]: With dead ends: 584 [2018-11-18 22:27:06,892 INFO L226 Difference]: Without dead ends: 567 [2018-11-18 22:27:06,893 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2018-11-18 22:27:06,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2018-11-18 22:27:07,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 189. [2018-11-18 22:27:07,357 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:07,357 INFO L82 GeneralOperation]: Start isEquivalent. First operand 567 states. Second operand 189 states. [2018-11-18 22:27:07,357 INFO L74 IsIncluded]: Start isIncluded. First operand 567 states. Second operand 189 states. [2018-11-18 22:27:07,357 INFO L87 Difference]: Start difference. First operand 567 states. Second operand 189 states. [2018-11-18 22:27:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:07,371 INFO L93 Difference]: Finished difference Result 567 states and 636 transitions. [2018-11-18 22:27:07,371 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 636 transitions. [2018-11-18 22:27:07,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:07,372 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:07,372 INFO L74 IsIncluded]: Start isIncluded. First operand 189 states. Second operand 567 states. [2018-11-18 22:27:07,373 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 567 states. [2018-11-18 22:27:07,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:07,390 INFO L93 Difference]: Finished difference Result 567 states and 636 transitions. [2018-11-18 22:27:07,390 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 636 transitions. [2018-11-18 22:27:07,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:07,391 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:07,391 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:07,391 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:07,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-11-18 22:27:07,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 230 transitions. [2018-11-18 22:27:07,394 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 230 transitions. Word has length 28 [2018-11-18 22:27:07,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:07,395 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 230 transitions. [2018-11-18 22:27:07,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 22:27:07,395 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 230 transitions. [2018-11-18 22:27:07,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-18 22:27:07,395 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:07,396 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:07,396 INFO L423 AbstractCegarLoop]: === Iteration 22 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:07,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:07,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1026691398, now seen corresponding path program 1 times [2018-11-18 22:27:07,397 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:07,397 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 23 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 23 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:07,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:07,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:07,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:07,633 INFO L256 TraceCheckUtils]: 0: Hoare triple {18656#true} call ULTIMATE.init(); {18656#true} is VALID [2018-11-18 22:27:07,634 INFO L273 TraceCheckUtils]: 1: Hoare triple {18656#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {18656#true} is VALID [2018-11-18 22:27:07,634 INFO L273 TraceCheckUtils]: 2: Hoare triple {18656#true} assume true; {18656#true} is VALID [2018-11-18 22:27:07,634 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {18656#true} {18656#true} #139#return; {18656#true} is VALID [2018-11-18 22:27:07,634 INFO L256 TraceCheckUtils]: 4: Hoare triple {18656#true} call #t~ret4 := main(); {18656#true} is VALID [2018-11-18 22:27:07,634 INFO L273 TraceCheckUtils]: 5: Hoare triple {18656#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {18656#true} is VALID [2018-11-18 22:27:07,635 INFO L273 TraceCheckUtils]: 6: Hoare triple {18656#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {18679#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:07,636 INFO L273 TraceCheckUtils]: 7: Hoare triple {18679#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {18683#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:07,637 INFO L273 TraceCheckUtils]: 8: Hoare triple {18683#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {18683#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:07,639 INFO L273 TraceCheckUtils]: 9: Hoare triple {18683#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,642 INFO L273 TraceCheckUtils]: 10: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,644 INFO L273 TraceCheckUtils]: 11: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,646 INFO L273 TraceCheckUtils]: 12: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,648 INFO L273 TraceCheckUtils]: 13: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,650 INFO L273 TraceCheckUtils]: 14: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,652 INFO L273 TraceCheckUtils]: 15: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,654 INFO L273 TraceCheckUtils]: 16: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,656 INFO L273 TraceCheckUtils]: 17: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:07,657 INFO L273 TraceCheckUtils]: 18: Hoare triple {18690#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,658 INFO L273 TraceCheckUtils]: 19: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__i~0, ~main__len~0); {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,658 INFO L273 TraceCheckUtils]: 20: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__j~0, ~main__limit~0); {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,659 INFO L273 TraceCheckUtils]: 21: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,660 INFO L273 TraceCheckUtils]: 22: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,661 INFO L273 TraceCheckUtils]: 23: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,662 INFO L273 TraceCheckUtils]: 24: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,663 INFO L273 TraceCheckUtils]: 25: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:07,665 INFO L273 TraceCheckUtils]: 26: Hoare triple {18718#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {18743#(= (bvadd main_~__VERIFIER_assert__cond~8 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:07,666 INFO L273 TraceCheckUtils]: 27: Hoare triple {18743#(= (bvadd main_~__VERIFIER_assert__cond~8 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~8; {18657#false} is VALID [2018-11-18 22:27:07,666 INFO L273 TraceCheckUtils]: 28: Hoare triple {18657#false} assume !false; {18657#false} is VALID [2018-11-18 22:27:07,668 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:07,668 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:07,861 INFO L273 TraceCheckUtils]: 28: Hoare triple {18657#false} assume !false; {18657#false} is VALID [2018-11-18 22:27:07,861 INFO L273 TraceCheckUtils]: 27: Hoare triple {18753#(not (= main_~__VERIFIER_assert__cond~8 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~8; {18657#false} is VALID [2018-11-18 22:27:07,862 INFO L273 TraceCheckUtils]: 26: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {18753#(not (= main_~__VERIFIER_assert__cond~8 (_ bv0 32)))} is VALID [2018-11-18 22:27:07,863 INFO L273 TraceCheckUtils]: 25: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,863 INFO L273 TraceCheckUtils]: 24: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,864 INFO L273 TraceCheckUtils]: 23: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,864 INFO L273 TraceCheckUtils]: 22: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,865 INFO L273 TraceCheckUtils]: 21: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,865 INFO L273 TraceCheckUtils]: 20: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,866 INFO L273 TraceCheckUtils]: 19: Hoare triple {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,867 INFO L273 TraceCheckUtils]: 18: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {18757#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,867 INFO L273 TraceCheckUtils]: 17: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,868 INFO L273 TraceCheckUtils]: 16: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,868 INFO L273 TraceCheckUtils]: 15: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,869 INFO L273 TraceCheckUtils]: 14: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,870 INFO L273 TraceCheckUtils]: 13: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,870 INFO L273 TraceCheckUtils]: 12: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,871 INFO L273 TraceCheckUtils]: 11: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,871 INFO L273 TraceCheckUtils]: 10: Hoare triple {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,872 INFO L273 TraceCheckUtils]: 9: Hoare triple {18810#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {18782#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:07,872 INFO L273 TraceCheckUtils]: 8: Hoare triple {18810#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {18810#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:07,873 INFO L273 TraceCheckUtils]: 7: Hoare triple {18817#(or (bvslt (_ bv1 32) main_~main__bufsize~0) (not (bvslt (_ bv0 32) main_~main__limit~0)))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {18810#(or (not (bvslt main_~main__j~0 main_~main__limit~0)) (bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:07,876 INFO L273 TraceCheckUtils]: 6: Hoare triple {18656#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {18817#(or (bvslt (_ bv1 32) main_~main__bufsize~0) (not (bvslt (_ bv0 32) main_~main__limit~0)))} is VALID [2018-11-18 22:27:07,876 INFO L273 TraceCheckUtils]: 5: Hoare triple {18656#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {18656#true} is VALID [2018-11-18 22:27:07,876 INFO L256 TraceCheckUtils]: 4: Hoare triple {18656#true} call #t~ret4 := main(); {18656#true} is VALID [2018-11-18 22:27:07,876 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {18656#true} {18656#true} #139#return; {18656#true} is VALID [2018-11-18 22:27:07,877 INFO L273 TraceCheckUtils]: 2: Hoare triple {18656#true} assume true; {18656#true} is VALID [2018-11-18 22:27:07,877 INFO L273 TraceCheckUtils]: 1: Hoare triple {18656#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {18656#true} is VALID [2018-11-18 22:27:07,877 INFO L256 TraceCheckUtils]: 0: Hoare triple {18656#true} call ULTIMATE.init(); {18656#true} is VALID [2018-11-18 22:27:07,878 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:07,880 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:07,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-18 22:27:07,880 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-11-18 22:27:07,880 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:07,881 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2018-11-18 22:27:07,960 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:07,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 22:27:07,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 22:27:07,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-11-18 22:27:07,962 INFO L87 Difference]: Start difference. First operand 189 states and 230 transitions. Second operand 12 states. [2018-11-18 22:27:11,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:11,396 INFO L93 Difference]: Finished difference Result 311 states and 363 transitions. [2018-11-18 22:27:11,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-18 22:27:11,396 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-11-18 22:27:11,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:11,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 22:27:11,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 196 transitions. [2018-11-18 22:27:11,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 22:27:11,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 196 transitions. [2018-11-18 22:27:11,400 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 196 transitions. [2018-11-18 22:27:11,932 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 196 edges. 196 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:11,939 INFO L225 Difference]: With dead ends: 311 [2018-11-18 22:27:11,939 INFO L226 Difference]: Without dead ends: 309 [2018-11-18 22:27:11,939 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2018-11-18 22:27:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2018-11-18 22:27:12,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 187. [2018-11-18 22:27:12,303 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:12,304 INFO L82 GeneralOperation]: Start isEquivalent. First operand 309 states. Second operand 187 states. [2018-11-18 22:27:12,304 INFO L74 IsIncluded]: Start isIncluded. First operand 309 states. Second operand 187 states. [2018-11-18 22:27:12,304 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 187 states. [2018-11-18 22:27:12,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:12,311 INFO L93 Difference]: Finished difference Result 309 states and 359 transitions. [2018-11-18 22:27:12,311 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 359 transitions. [2018-11-18 22:27:12,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:12,312 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:12,312 INFO L74 IsIncluded]: Start isIncluded. First operand 187 states. Second operand 309 states. [2018-11-18 22:27:12,312 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 309 states. [2018-11-18 22:27:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:12,318 INFO L93 Difference]: Finished difference Result 309 states and 359 transitions. [2018-11-18 22:27:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 359 transitions. [2018-11-18 22:27:12,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:12,319 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:12,319 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:12,319 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:12,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-11-18 22:27:12,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 227 transitions. [2018-11-18 22:27:12,323 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 227 transitions. Word has length 29 [2018-11-18 22:27:12,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:12,323 INFO L480 AbstractCegarLoop]: Abstraction has 187 states and 227 transitions. [2018-11-18 22:27:12,323 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 22:27:12,323 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 227 transitions. [2018-11-18 22:27:12,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-18 22:27:12,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:12,324 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:12,324 INFO L423 AbstractCegarLoop]: === Iteration 23 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:12,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:12,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1762659139, now seen corresponding path program 1 times [2018-11-18 22:27:12,325 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:12,325 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 24 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 24 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:12,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:12,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:12,602 INFO L256 TraceCheckUtils]: 0: Hoare triple {20070#true} call ULTIMATE.init(); {20070#true} is VALID [2018-11-18 22:27:12,602 INFO L273 TraceCheckUtils]: 1: Hoare triple {20070#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {20070#true} is VALID [2018-11-18 22:27:12,602 INFO L273 TraceCheckUtils]: 2: Hoare triple {20070#true} assume true; {20070#true} is VALID [2018-11-18 22:27:12,605 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {20070#true} {20070#true} #139#return; {20070#true} is VALID [2018-11-18 22:27:12,605 INFO L256 TraceCheckUtils]: 4: Hoare triple {20070#true} call #t~ret4 := main(); {20070#true} is VALID [2018-11-18 22:27:12,605 INFO L273 TraceCheckUtils]: 5: Hoare triple {20070#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {20070#true} is VALID [2018-11-18 22:27:12,605 INFO L273 TraceCheckUtils]: 6: Hoare triple {20070#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {20070#true} is VALID [2018-11-18 22:27:12,606 INFO L273 TraceCheckUtils]: 7: Hoare triple {20070#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,606 INFO L273 TraceCheckUtils]: 8: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,607 INFO L273 TraceCheckUtils]: 9: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,607 INFO L273 TraceCheckUtils]: 10: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,607 INFO L273 TraceCheckUtils]: 11: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,608 INFO L273 TraceCheckUtils]: 12: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,608 INFO L273 TraceCheckUtils]: 13: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,608 INFO L273 TraceCheckUtils]: 14: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,609 INFO L273 TraceCheckUtils]: 15: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,609 INFO L273 TraceCheckUtils]: 16: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,609 INFO L273 TraceCheckUtils]: 17: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {20096#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,610 INFO L273 TraceCheckUtils]: 18: Hoare triple {20096#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,610 INFO L273 TraceCheckUtils]: 19: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,611 INFO L273 TraceCheckUtils]: 20: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,611 INFO L273 TraceCheckUtils]: 21: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,612 INFO L273 TraceCheckUtils]: 22: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,612 INFO L273 TraceCheckUtils]: 23: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,613 INFO L273 TraceCheckUtils]: 24: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,613 INFO L273 TraceCheckUtils]: 25: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,614 INFO L273 TraceCheckUtils]: 26: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {20130#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,615 INFO L273 TraceCheckUtils]: 27: Hoare triple {20130#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {20158#(= (bvadd main_~__VERIFIER_assert__cond~9 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:12,615 INFO L273 TraceCheckUtils]: 28: Hoare triple {20158#(= (bvadd main_~__VERIFIER_assert__cond~9 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~9; {20071#false} is VALID [2018-11-18 22:27:12,616 INFO L273 TraceCheckUtils]: 29: Hoare triple {20071#false} assume !false; {20071#false} is VALID [2018-11-18 22:27:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:12,617 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:12,676 INFO L273 TraceCheckUtils]: 29: Hoare triple {20071#false} assume !false; {20071#false} is VALID [2018-11-18 22:27:12,677 INFO L273 TraceCheckUtils]: 28: Hoare triple {20168#(not (= main_~__VERIFIER_assert__cond~9 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~9; {20071#false} is VALID [2018-11-18 22:27:12,678 INFO L273 TraceCheckUtils]: 27: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {20168#(not (= main_~__VERIFIER_assert__cond~9 (_ bv0 32)))} is VALID [2018-11-18 22:27:12,678 INFO L273 TraceCheckUtils]: 26: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,679 INFO L273 TraceCheckUtils]: 25: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,679 INFO L273 TraceCheckUtils]: 24: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,680 INFO L273 TraceCheckUtils]: 23: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,680 INFO L273 TraceCheckUtils]: 22: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,681 INFO L273 TraceCheckUtils]: 21: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,681 INFO L273 TraceCheckUtils]: 20: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,682 INFO L273 TraceCheckUtils]: 19: Hoare triple {20172#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,683 INFO L273 TraceCheckUtils]: 18: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {20172#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:12,683 INFO L273 TraceCheckUtils]: 17: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,684 INFO L273 TraceCheckUtils]: 16: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,684 INFO L273 TraceCheckUtils]: 15: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,685 INFO L273 TraceCheckUtils]: 14: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,685 INFO L273 TraceCheckUtils]: 13: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,686 INFO L273 TraceCheckUtils]: 12: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,686 INFO L273 TraceCheckUtils]: 11: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,687 INFO L273 TraceCheckUtils]: 10: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,687 INFO L273 TraceCheckUtils]: 9: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,688 INFO L273 TraceCheckUtils]: 8: Hoare triple {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,688 INFO L273 TraceCheckUtils]: 7: Hoare triple {20070#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {20200#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:12,688 INFO L273 TraceCheckUtils]: 6: Hoare triple {20070#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {20070#true} is VALID [2018-11-18 22:27:12,689 INFO L273 TraceCheckUtils]: 5: Hoare triple {20070#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {20070#true} is VALID [2018-11-18 22:27:12,689 INFO L256 TraceCheckUtils]: 4: Hoare triple {20070#true} call #t~ret4 := main(); {20070#true} is VALID [2018-11-18 22:27:12,689 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {20070#true} {20070#true} #139#return; {20070#true} is VALID [2018-11-18 22:27:12,690 INFO L273 TraceCheckUtils]: 2: Hoare triple {20070#true} assume true; {20070#true} is VALID [2018-11-18 22:27:12,690 INFO L273 TraceCheckUtils]: 1: Hoare triple {20070#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {20070#true} is VALID [2018-11-18 22:27:12,690 INFO L256 TraceCheckUtils]: 0: Hoare triple {20070#true} call ULTIMATE.init(); {20070#true} is VALID [2018-11-18 22:27:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:12,698 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:12,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-11-18 22:27:12,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2018-11-18 22:27:12,699 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:12,699 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-18 22:27:12,776 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 52 edges. 52 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:12,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 22:27:12,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 22:27:12,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 22:27:12,777 INFO L87 Difference]: Start difference. First operand 187 states and 227 transitions. Second operand 8 states. [2018-11-18 22:27:15,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:15,690 INFO L93 Difference]: Finished difference Result 431 states and 492 transitions. [2018-11-18 22:27:15,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-18 22:27:15,690 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 30 [2018-11-18 22:27:15,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:15,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:27:15,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 324 transitions. [2018-11-18 22:27:15,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 22:27:15,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 324 transitions. [2018-11-18 22:27:15,695 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 324 transitions. [2018-11-18 22:27:16,143 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 324 edges. 324 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:16,157 INFO L225 Difference]: With dead ends: 431 [2018-11-18 22:27:16,157 INFO L226 Difference]: Without dead ends: 429 [2018-11-18 22:27:16,157 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2018-11-18 22:27:16,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2018-11-18 22:27:16,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 191. [2018-11-18 22:27:16,668 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:16,668 INFO L82 GeneralOperation]: Start isEquivalent. First operand 429 states. Second operand 191 states. [2018-11-18 22:27:16,668 INFO L74 IsIncluded]: Start isIncluded. First operand 429 states. Second operand 191 states. [2018-11-18 22:27:16,668 INFO L87 Difference]: Start difference. First operand 429 states. Second operand 191 states. [2018-11-18 22:27:16,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:16,677 INFO L93 Difference]: Finished difference Result 429 states and 488 transitions. [2018-11-18 22:27:16,677 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 488 transitions. [2018-11-18 22:27:16,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:16,678 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:16,678 INFO L74 IsIncluded]: Start isIncluded. First operand 191 states. Second operand 429 states. [2018-11-18 22:27:16,678 INFO L87 Difference]: Start difference. First operand 191 states. Second operand 429 states. [2018-11-18 22:27:16,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:16,689 INFO L93 Difference]: Finished difference Result 429 states and 488 transitions. [2018-11-18 22:27:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 488 transitions. [2018-11-18 22:27:16,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:16,690 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:16,690 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:16,690 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:16,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2018-11-18 22:27:16,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 230 transitions. [2018-11-18 22:27:16,693 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 230 transitions. Word has length 30 [2018-11-18 22:27:16,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:16,694 INFO L480 AbstractCegarLoop]: Abstraction has 191 states and 230 transitions. [2018-11-18 22:27:16,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 22:27:16,694 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 230 transitions. [2018-11-18 22:27:16,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 22:27:16,694 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:16,694 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:16,694 INFO L423 AbstractCegarLoop]: === Iteration 24 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:16,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:16,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1192144672, now seen corresponding path program 1 times [2018-11-18 22:27:16,695 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:16,695 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 25 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 25 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:16,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:16,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:16,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:16,945 INFO L256 TraceCheckUtils]: 0: Hoare triple {21865#true} call ULTIMATE.init(); {21865#true} is VALID [2018-11-18 22:27:16,945 INFO L273 TraceCheckUtils]: 1: Hoare triple {21865#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {21865#true} is VALID [2018-11-18 22:27:16,945 INFO L273 TraceCheckUtils]: 2: Hoare triple {21865#true} assume true; {21865#true} is VALID [2018-11-18 22:27:16,946 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21865#true} {21865#true} #139#return; {21865#true} is VALID [2018-11-18 22:27:16,946 INFO L256 TraceCheckUtils]: 4: Hoare triple {21865#true} call #t~ret4 := main(); {21865#true} is VALID [2018-11-18 22:27:16,946 INFO L273 TraceCheckUtils]: 5: Hoare triple {21865#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {21865#true} is VALID [2018-11-18 22:27:16,947 INFO L273 TraceCheckUtils]: 6: Hoare triple {21865#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {21888#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:16,948 INFO L273 TraceCheckUtils]: 7: Hoare triple {21888#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {21892#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:27:16,948 INFO L273 TraceCheckUtils]: 8: Hoare triple {21892#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {21892#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:27:16,949 INFO L273 TraceCheckUtils]: 9: Hoare triple {21892#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {21892#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} is VALID [2018-11-18 22:27:16,950 INFO L273 TraceCheckUtils]: 10: Hoare triple {21892#(and (= (_ bv0 32) main_~main__i~0) (bvslt main_~main__i~0 main_~main__len~0))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,951 INFO L273 TraceCheckUtils]: 11: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,952 INFO L273 TraceCheckUtils]: 12: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,954 INFO L273 TraceCheckUtils]: 13: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,955 INFO L273 TraceCheckUtils]: 14: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,956 INFO L273 TraceCheckUtils]: 15: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,958 INFO L273 TraceCheckUtils]: 16: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,959 INFO L273 TraceCheckUtils]: 17: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} is VALID [2018-11-18 22:27:16,963 INFO L273 TraceCheckUtils]: 18: Hoare triple {21902#(and (= (_ bv0 32) main_~main__i~0) (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {21927#(and (bvslt (_ bv1 32) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,964 INFO L273 TraceCheckUtils]: 19: Hoare triple {21927#(and (bvslt (_ bv1 32) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {21927#(and (bvslt (_ bv1 32) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,964 INFO L273 TraceCheckUtils]: 20: Hoare triple {21927#(and (bvslt (_ bv1 32) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {21927#(and (bvslt (_ bv1 32) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,965 INFO L273 TraceCheckUtils]: 21: Hoare triple {21927#(and (bvslt (_ bv1 32) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,965 INFO L273 TraceCheckUtils]: 22: Hoare triple {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,966 INFO L273 TraceCheckUtils]: 23: Hoare triple {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,966 INFO L273 TraceCheckUtils]: 24: Hoare triple {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,967 INFO L273 TraceCheckUtils]: 25: Hoare triple {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,968 INFO L273 TraceCheckUtils]: 26: Hoare triple {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,969 INFO L273 TraceCheckUtils]: 27: Hoare triple {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} is VALID [2018-11-18 22:27:16,971 INFO L273 TraceCheckUtils]: 28: Hoare triple {21937#(and (bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0) (= (_ bv1 32) main_~main__i~0))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {21959#(= (bvadd main_~__VERIFIER_assert__cond~10 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:16,972 INFO L273 TraceCheckUtils]: 29: Hoare triple {21959#(= (bvadd main_~__VERIFIER_assert__cond~10 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~10; {21866#false} is VALID [2018-11-18 22:27:16,972 INFO L273 TraceCheckUtils]: 30: Hoare triple {21866#false} assume !false; {21866#false} is VALID [2018-11-18 22:27:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:16,976 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:17,056 INFO L273 TraceCheckUtils]: 30: Hoare triple {21866#false} assume !false; {21866#false} is VALID [2018-11-18 22:27:17,056 INFO L273 TraceCheckUtils]: 29: Hoare triple {21969#(not (= main_~__VERIFIER_assert__cond~10 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~10; {21866#false} is VALID [2018-11-18 22:27:17,057 INFO L273 TraceCheckUtils]: 28: Hoare triple {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {21969#(not (= main_~__VERIFIER_assert__cond~10 (_ bv0 32)))} is VALID [2018-11-18 22:27:17,058 INFO L273 TraceCheckUtils]: 27: Hoare triple {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} is VALID [2018-11-18 22:27:17,058 INFO L273 TraceCheckUtils]: 26: Hoare triple {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} is VALID [2018-11-18 22:27:17,059 INFO L273 TraceCheckUtils]: 25: Hoare triple {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} is VALID [2018-11-18 22:27:17,060 INFO L273 TraceCheckUtils]: 24: Hoare triple {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} is VALID [2018-11-18 22:27:17,060 INFO L273 TraceCheckUtils]: 23: Hoare triple {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} is VALID [2018-11-18 22:27:17,061 INFO L273 TraceCheckUtils]: 22: Hoare triple {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} is VALID [2018-11-18 22:27:17,061 INFO L273 TraceCheckUtils]: 21: Hoare triple {21865#true} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {21973#(bvslt (bvadd main_~main__i~0 (_ bv1 32)) main_~main__len~0)} is VALID [2018-11-18 22:27:17,062 INFO L273 TraceCheckUtils]: 20: Hoare triple {21865#true} assume ~bvslt32(~main__j~0, ~main__limit~0); {21865#true} is VALID [2018-11-18 22:27:17,062 INFO L273 TraceCheckUtils]: 19: Hoare triple {21865#true} assume ~bvslt32(~main__i~0, ~main__len~0); {21865#true} is VALID [2018-11-18 22:27:17,062 INFO L273 TraceCheckUtils]: 18: Hoare triple {21865#true} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {21865#true} is VALID [2018-11-18 22:27:17,063 INFO L273 TraceCheckUtils]: 17: Hoare triple {21865#true} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {21865#true} is VALID [2018-11-18 22:27:17,063 INFO L273 TraceCheckUtils]: 16: Hoare triple {21865#true} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {21865#true} is VALID [2018-11-18 22:27:17,063 INFO L273 TraceCheckUtils]: 15: Hoare triple {21865#true} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {21865#true} is VALID [2018-11-18 22:27:17,063 INFO L273 TraceCheckUtils]: 14: Hoare triple {21865#true} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {21865#true} is VALID [2018-11-18 22:27:17,064 INFO L273 TraceCheckUtils]: 13: Hoare triple {21865#true} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {21865#true} is VALID [2018-11-18 22:27:17,064 INFO L273 TraceCheckUtils]: 12: Hoare triple {21865#true} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {21865#true} is VALID [2018-11-18 22:27:17,064 INFO L273 TraceCheckUtils]: 11: Hoare triple {21865#true} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {21865#true} is VALID [2018-11-18 22:27:17,064 INFO L273 TraceCheckUtils]: 10: Hoare triple {21865#true} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {21865#true} is VALID [2018-11-18 22:27:17,065 INFO L273 TraceCheckUtils]: 9: Hoare triple {21865#true} assume ~bvslt32(~main__j~0, ~main__limit~0); {21865#true} is VALID [2018-11-18 22:27:17,065 INFO L273 TraceCheckUtils]: 8: Hoare triple {21865#true} assume ~bvslt32(~main__i~0, ~main__len~0); {21865#true} is VALID [2018-11-18 22:27:17,065 INFO L273 TraceCheckUtils]: 7: Hoare triple {21865#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {21865#true} is VALID [2018-11-18 22:27:17,065 INFO L273 TraceCheckUtils]: 6: Hoare triple {21865#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {21865#true} is VALID [2018-11-18 22:27:17,066 INFO L273 TraceCheckUtils]: 5: Hoare triple {21865#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {21865#true} is VALID [2018-11-18 22:27:17,066 INFO L256 TraceCheckUtils]: 4: Hoare triple {21865#true} call #t~ret4 := main(); {21865#true} is VALID [2018-11-18 22:27:17,066 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21865#true} {21865#true} #139#return; {21865#true} is VALID [2018-11-18 22:27:17,067 INFO L273 TraceCheckUtils]: 2: Hoare triple {21865#true} assume true; {21865#true} is VALID [2018-11-18 22:27:17,067 INFO L273 TraceCheckUtils]: 1: Hoare triple {21865#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {21865#true} is VALID [2018-11-18 22:27:17,067 INFO L256 TraceCheckUtils]: 0: Hoare triple {21865#true} call ULTIMATE.init(); {21865#true} is VALID [2018-11-18 22:27:17,068 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 22:27:17,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 22:27:17,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2018-11-18 22:27:17,070 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-11-18 22:27:17,070 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:17,070 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2018-11-18 22:27:17,145 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:17,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 22:27:17,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 22:27:17,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-11-18 22:27:17,147 INFO L87 Difference]: Start difference. First operand 191 states and 230 transitions. Second operand 10 states. [2018-11-18 22:27:18,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:18,881 INFO L93 Difference]: Finished difference Result 244 states and 286 transitions. [2018-11-18 22:27:18,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 22:27:18,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-11-18 22:27:18,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:18,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 22:27:18,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 119 transitions. [2018-11-18 22:27:18,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 22:27:18,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 119 transitions. [2018-11-18 22:27:18,884 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 119 transitions. [2018-11-18 22:27:19,126 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 119 edges. 119 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:19,131 INFO L225 Difference]: With dead ends: 244 [2018-11-18 22:27:19,131 INFO L226 Difference]: Without dead ends: 242 [2018-11-18 22:27:19,132 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-11-18 22:27:19,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-11-18 22:27:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 189. [2018-11-18 22:27:19,800 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:19,800 INFO L82 GeneralOperation]: Start isEquivalent. First operand 242 states. Second operand 189 states. [2018-11-18 22:27:19,801 INFO L74 IsIncluded]: Start isIncluded. First operand 242 states. Second operand 189 states. [2018-11-18 22:27:19,801 INFO L87 Difference]: Start difference. First operand 242 states. Second operand 189 states. [2018-11-18 22:27:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:19,805 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2018-11-18 22:27:19,805 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 281 transitions. [2018-11-18 22:27:19,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:19,806 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:19,806 INFO L74 IsIncluded]: Start isIncluded. First operand 189 states. Second operand 242 states. [2018-11-18 22:27:19,806 INFO L87 Difference]: Start difference. First operand 189 states. Second operand 242 states. [2018-11-18 22:27:19,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:19,812 INFO L93 Difference]: Finished difference Result 242 states and 281 transitions. [2018-11-18 22:27:19,812 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 281 transitions. [2018-11-18 22:27:19,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:19,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:19,813 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:19,813 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:19,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-11-18 22:27:19,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 225 transitions. [2018-11-18 22:27:19,816 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 225 transitions. Word has length 31 [2018-11-18 22:27:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:19,817 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 225 transitions. [2018-11-18 22:27:19,817 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 22:27:19,817 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 225 transitions. [2018-11-18 22:27:19,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 22:27:19,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:19,817 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:19,818 INFO L423 AbstractCegarLoop]: === Iteration 25 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:19,818 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:19,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1698217693, now seen corresponding path program 1 times [2018-11-18 22:27:19,819 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:19,819 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 26 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 26 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:19,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:19,905 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:19,966 INFO L256 TraceCheckUtils]: 0: Hoare triple {23059#true} call ULTIMATE.init(); {23059#true} is VALID [2018-11-18 22:27:19,966 INFO L273 TraceCheckUtils]: 1: Hoare triple {23059#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {23059#true} is VALID [2018-11-18 22:27:19,966 INFO L273 TraceCheckUtils]: 2: Hoare triple {23059#true} assume true; {23059#true} is VALID [2018-11-18 22:27:19,967 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {23059#true} {23059#true} #139#return; {23059#true} is VALID [2018-11-18 22:27:19,967 INFO L256 TraceCheckUtils]: 4: Hoare triple {23059#true} call #t~ret4 := main(); {23059#true} is VALID [2018-11-18 22:27:19,967 INFO L273 TraceCheckUtils]: 5: Hoare triple {23059#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {23059#true} is VALID [2018-11-18 22:27:19,968 INFO L273 TraceCheckUtils]: 6: Hoare triple {23059#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,968 INFO L273 TraceCheckUtils]: 7: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,969 INFO L273 TraceCheckUtils]: 8: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,969 INFO L273 TraceCheckUtils]: 9: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,969 INFO L273 TraceCheckUtils]: 10: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,970 INFO L273 TraceCheckUtils]: 11: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,970 INFO L273 TraceCheckUtils]: 12: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,970 INFO L273 TraceCheckUtils]: 13: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,971 INFO L273 TraceCheckUtils]: 14: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,971 INFO L273 TraceCheckUtils]: 15: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,972 INFO L273 TraceCheckUtils]: 16: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,972 INFO L273 TraceCheckUtils]: 17: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {23082#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,973 INFO L273 TraceCheckUtils]: 18: Hoare triple {23082#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,973 INFO L273 TraceCheckUtils]: 19: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,974 INFO L273 TraceCheckUtils]: 20: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,974 INFO L273 TraceCheckUtils]: 21: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,975 INFO L273 TraceCheckUtils]: 22: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,975 INFO L273 TraceCheckUtils]: 23: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,976 INFO L273 TraceCheckUtils]: 24: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,976 INFO L273 TraceCheckUtils]: 25: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,977 INFO L273 TraceCheckUtils]: 26: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,977 INFO L273 TraceCheckUtils]: 27: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {23119#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,978 INFO L273 TraceCheckUtils]: 28: Hoare triple {23119#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {23150#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:27:19,979 INFO L273 TraceCheckUtils]: 29: Hoare triple {23150#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {23154#(= (bvadd main_~__VERIFIER_assert__cond~11 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:19,980 INFO L273 TraceCheckUtils]: 30: Hoare triple {23154#(= (bvadd main_~__VERIFIER_assert__cond~11 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~11; {23060#false} is VALID [2018-11-18 22:27:19,980 INFO L273 TraceCheckUtils]: 31: Hoare triple {23060#false} assume !false; {23060#false} is VALID [2018-11-18 22:27:19,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:19,981 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:20,063 INFO L273 TraceCheckUtils]: 31: Hoare triple {23060#false} assume !false; {23060#false} is VALID [2018-11-18 22:27:20,064 INFO L273 TraceCheckUtils]: 30: Hoare triple {23164#(not (= main_~__VERIFIER_assert__cond~11 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~11; {23060#false} is VALID [2018-11-18 22:27:20,064 INFO L273 TraceCheckUtils]: 29: Hoare triple {23168#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {23164#(not (= main_~__VERIFIER_assert__cond~11 (_ bv0 32)))} is VALID [2018-11-18 22:27:20,065 INFO L273 TraceCheckUtils]: 28: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {23168#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:27:20,066 INFO L273 TraceCheckUtils]: 27: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,066 INFO L273 TraceCheckUtils]: 26: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,067 INFO L273 TraceCheckUtils]: 25: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,067 INFO L273 TraceCheckUtils]: 24: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,068 INFO L273 TraceCheckUtils]: 23: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,068 INFO L273 TraceCheckUtils]: 22: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,069 INFO L273 TraceCheckUtils]: 21: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,069 INFO L273 TraceCheckUtils]: 20: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,070 INFO L273 TraceCheckUtils]: 19: Hoare triple {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,074 INFO L273 TraceCheckUtils]: 18: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {23172#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:20,074 INFO L273 TraceCheckUtils]: 17: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,075 INFO L273 TraceCheckUtils]: 16: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,097 INFO L273 TraceCheckUtils]: 15: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,111 INFO L273 TraceCheckUtils]: 14: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,119 INFO L273 TraceCheckUtils]: 13: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,132 INFO L273 TraceCheckUtils]: 12: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,146 INFO L273 TraceCheckUtils]: 11: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,155 INFO L273 TraceCheckUtils]: 10: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,167 INFO L273 TraceCheckUtils]: 9: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,180 INFO L273 TraceCheckUtils]: 8: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,182 INFO L273 TraceCheckUtils]: 7: Hoare triple {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,182 INFO L273 TraceCheckUtils]: 6: Hoare triple {23059#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {23203#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:20,182 INFO L273 TraceCheckUtils]: 5: Hoare triple {23059#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {23059#true} is VALID [2018-11-18 22:27:20,183 INFO L256 TraceCheckUtils]: 4: Hoare triple {23059#true} call #t~ret4 := main(); {23059#true} is VALID [2018-11-18 22:27:20,183 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {23059#true} {23059#true} #139#return; {23059#true} is VALID [2018-11-18 22:27:20,183 INFO L273 TraceCheckUtils]: 2: Hoare triple {23059#true} assume true; {23059#true} is VALID [2018-11-18 22:27:20,183 INFO L273 TraceCheckUtils]: 1: Hoare triple {23059#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {23059#true} is VALID [2018-11-18 22:27:20,183 INFO L256 TraceCheckUtils]: 0: Hoare triple {23059#true} call ULTIMATE.init(); {23059#true} is VALID [2018-11-18 22:27:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:20,187 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:20,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-11-18 22:27:20,188 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-11-18 22:27:20,188 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:20,188 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2018-11-18 22:27:20,272 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:20,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 22:27:20,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 22:27:20,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 22:27:20,272 INFO L87 Difference]: Start difference. First operand 189 states and 225 transitions. Second operand 10 states. [2018-11-18 22:27:22,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:22,652 INFO L93 Difference]: Finished difference Result 376 states and 430 transitions. [2018-11-18 22:27:22,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 22:27:22,653 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-11-18 22:27:22,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:22,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 22:27:22,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2018-11-18 22:27:22,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 22:27:22,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 198 transitions. [2018-11-18 22:27:22,655 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 198 transitions. [2018-11-18 22:27:22,953 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 198 edges. 198 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:22,961 INFO L225 Difference]: With dead ends: 376 [2018-11-18 22:27:22,961 INFO L226 Difference]: Without dead ends: 374 [2018-11-18 22:27:22,961 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=179, Unknown=0, NotChecked=0, Total=272 [2018-11-18 22:27:22,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2018-11-18 22:27:23,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 181. [2018-11-18 22:27:23,471 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:23,471 INFO L82 GeneralOperation]: Start isEquivalent. First operand 374 states. Second operand 181 states. [2018-11-18 22:27:23,471 INFO L74 IsIncluded]: Start isIncluded. First operand 374 states. Second operand 181 states. [2018-11-18 22:27:23,471 INFO L87 Difference]: Start difference. First operand 374 states. Second operand 181 states. [2018-11-18 22:27:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:23,480 INFO L93 Difference]: Finished difference Result 374 states and 423 transitions. [2018-11-18 22:27:23,481 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 423 transitions. [2018-11-18 22:27:23,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:23,481 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:23,481 INFO L74 IsIncluded]: Start isIncluded. First operand 181 states. Second operand 374 states. [2018-11-18 22:27:23,482 INFO L87 Difference]: Start difference. First operand 181 states. Second operand 374 states. [2018-11-18 22:27:23,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:23,490 INFO L93 Difference]: Finished difference Result 374 states and 423 transitions. [2018-11-18 22:27:23,490 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 423 transitions. [2018-11-18 22:27:23,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:23,490 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:23,490 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:23,490 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:23,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2018-11-18 22:27:23,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 214 transitions. [2018-11-18 22:27:23,493 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 214 transitions. Word has length 32 [2018-11-18 22:27:23,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:23,494 INFO L480 AbstractCegarLoop]: Abstraction has 181 states and 214 transitions. [2018-11-18 22:27:23,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 22:27:23,494 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 214 transitions. [2018-11-18 22:27:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-18 22:27:23,494 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:23,494 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:23,494 INFO L423 AbstractCegarLoop]: === Iteration 26 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:23,495 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:23,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1105137786, now seen corresponding path program 1 times [2018-11-18 22:27:23,495 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:23,495 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 27 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 27 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:23,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:23,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:23,777 INFO L256 TraceCheckUtils]: 0: Hoare triple {24684#true} call ULTIMATE.init(); {24684#true} is VALID [2018-11-18 22:27:23,777 INFO L273 TraceCheckUtils]: 1: Hoare triple {24684#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {24684#true} is VALID [2018-11-18 22:27:23,777 INFO L273 TraceCheckUtils]: 2: Hoare triple {24684#true} assume true; {24684#true} is VALID [2018-11-18 22:27:23,777 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {24684#true} {24684#true} #139#return; {24684#true} is VALID [2018-11-18 22:27:23,778 INFO L256 TraceCheckUtils]: 4: Hoare triple {24684#true} call #t~ret4 := main(); {24684#true} is VALID [2018-11-18 22:27:23,778 INFO L273 TraceCheckUtils]: 5: Hoare triple {24684#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {24684#true} is VALID [2018-11-18 22:27:23,778 INFO L273 TraceCheckUtils]: 6: Hoare triple {24684#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {24707#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:23,779 INFO L273 TraceCheckUtils]: 7: Hoare triple {24707#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {24711#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:23,780 INFO L273 TraceCheckUtils]: 8: Hoare triple {24711#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {24711#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:23,782 INFO L273 TraceCheckUtils]: 9: Hoare triple {24711#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,784 INFO L273 TraceCheckUtils]: 10: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,786 INFO L273 TraceCheckUtils]: 11: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,787 INFO L273 TraceCheckUtils]: 12: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,788 INFO L273 TraceCheckUtils]: 13: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,790 INFO L273 TraceCheckUtils]: 14: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,792 INFO L273 TraceCheckUtils]: 15: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,794 INFO L273 TraceCheckUtils]: 16: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,795 INFO L273 TraceCheckUtils]: 17: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:23,796 INFO L273 TraceCheckUtils]: 18: Hoare triple {24718#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,796 INFO L273 TraceCheckUtils]: 19: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__i~0, ~main__len~0); {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,796 INFO L273 TraceCheckUtils]: 20: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__j~0, ~main__limit~0); {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,797 INFO L273 TraceCheckUtils]: 21: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,797 INFO L273 TraceCheckUtils]: 22: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,798 INFO L273 TraceCheckUtils]: 23: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,798 INFO L273 TraceCheckUtils]: 24: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,799 INFO L273 TraceCheckUtils]: 25: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,800 INFO L273 TraceCheckUtils]: 26: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,801 INFO L273 TraceCheckUtils]: 27: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,802 INFO L273 TraceCheckUtils]: 28: Hoare triple {24746#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {24777#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,803 INFO L273 TraceCheckUtils]: 29: Hoare triple {24777#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {24777#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:23,805 INFO L273 TraceCheckUtils]: 30: Hoare triple {24777#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {24784#(= (bvadd main_~__VERIFIER_assert__cond~12 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:23,805 INFO L273 TraceCheckUtils]: 31: Hoare triple {24784#(= (bvadd main_~__VERIFIER_assert__cond~12 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~12; {24685#false} is VALID [2018-11-18 22:27:23,805 INFO L273 TraceCheckUtils]: 32: Hoare triple {24685#false} assume !false; {24685#false} is VALID [2018-11-18 22:27:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:23,808 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:24,175 INFO L273 TraceCheckUtils]: 32: Hoare triple {24685#false} assume !false; {24685#false} is VALID [2018-11-18 22:27:24,177 INFO L273 TraceCheckUtils]: 31: Hoare triple {24794#(not (= main_~__VERIFIER_assert__cond~12 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~12; {24685#false} is VALID [2018-11-18 22:27:24,177 INFO L273 TraceCheckUtils]: 30: Hoare triple {24798#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {24794#(not (= main_~__VERIFIER_assert__cond~12 (_ bv0 32)))} is VALID [2018-11-18 22:27:24,179 INFO L273 TraceCheckUtils]: 29: Hoare triple {24798#(bvslt main_~main__j~0 main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {24798#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,179 INFO L273 TraceCheckUtils]: 28: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {24798#(bvslt main_~main__j~0 main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,181 INFO L273 TraceCheckUtils]: 27: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,181 INFO L273 TraceCheckUtils]: 26: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,183 INFO L273 TraceCheckUtils]: 25: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,185 INFO L273 TraceCheckUtils]: 24: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,187 INFO L273 TraceCheckUtils]: 23: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,187 INFO L273 TraceCheckUtils]: 22: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,189 INFO L273 TraceCheckUtils]: 21: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,189 INFO L273 TraceCheckUtils]: 20: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,191 INFO L273 TraceCheckUtils]: 19: Hoare triple {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,216 INFO L273 TraceCheckUtils]: 18: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {24805#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,222 INFO L273 TraceCheckUtils]: 17: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,224 INFO L273 TraceCheckUtils]: 16: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,224 INFO L273 TraceCheckUtils]: 15: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,226 INFO L273 TraceCheckUtils]: 14: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,226 INFO L273 TraceCheckUtils]: 13: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,228 INFO L273 TraceCheckUtils]: 12: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,228 INFO L273 TraceCheckUtils]: 11: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,230 INFO L273 TraceCheckUtils]: 10: Hoare triple {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,230 INFO L273 TraceCheckUtils]: 9: Hoare triple {24864#(or (bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {24836#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:24,232 INFO L273 TraceCheckUtils]: 8: Hoare triple {24864#(or (bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} assume ~bvslt32(~main__i~0, ~main__len~0); {24864#(or (bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} is VALID [2018-11-18 22:27:24,232 INFO L273 TraceCheckUtils]: 7: Hoare triple {24871#(or (not (bvslt (_ bv0 32) main_~main__limit~0)) (bvslt (_ bv2 32) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {24864#(or (bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} is VALID [2018-11-18 22:27:24,234 INFO L273 TraceCheckUtils]: 6: Hoare triple {24684#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {24871#(or (not (bvslt (_ bv0 32) main_~main__limit~0)) (bvslt (_ bv2 32) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:24,234 INFO L273 TraceCheckUtils]: 5: Hoare triple {24684#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {24684#true} is VALID [2018-11-18 22:27:24,234 INFO L256 TraceCheckUtils]: 4: Hoare triple {24684#true} call #t~ret4 := main(); {24684#true} is VALID [2018-11-18 22:27:24,234 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {24684#true} {24684#true} #139#return; {24684#true} is VALID [2018-11-18 22:27:24,234 INFO L273 TraceCheckUtils]: 2: Hoare triple {24684#true} assume true; {24684#true} is VALID [2018-11-18 22:27:24,234 INFO L273 TraceCheckUtils]: 1: Hoare triple {24684#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {24684#true} is VALID [2018-11-18 22:27:24,235 INFO L256 TraceCheckUtils]: 0: Hoare triple {24684#true} call ULTIMATE.init(); {24684#true} is VALID [2018-11-18 22:27:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:24,237 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:24,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-18 22:27:24,238 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-11-18 22:27:24,238 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:24,239 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-18 22:27:24,380 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 59 edges. 59 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:24,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 22:27:24,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 22:27:24,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-11-18 22:27:24,382 INFO L87 Difference]: Start difference. First operand 181 states and 214 transitions. Second operand 14 states. [2018-11-18 22:27:31,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:31,604 INFO L93 Difference]: Finished difference Result 467 states and 542 transitions. [2018-11-18 22:27:31,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 22:27:31,604 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 33 [2018-11-18 22:27:31,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:31,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:27:31,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 269 transitions. [2018-11-18 22:27:31,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:27:31,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 269 transitions. [2018-11-18 22:27:31,608 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 269 transitions. [2018-11-18 22:27:32,622 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:32,631 INFO L225 Difference]: With dead ends: 467 [2018-11-18 22:27:32,631 INFO L226 Difference]: Without dead ends: 352 [2018-11-18 22:27:32,632 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=205, Invalid=497, Unknown=0, NotChecked=0, Total=702 [2018-11-18 22:27:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2018-11-18 22:27:33,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 201. [2018-11-18 22:27:33,064 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:33,064 INFO L82 GeneralOperation]: Start isEquivalent. First operand 352 states. Second operand 201 states. [2018-11-18 22:27:33,064 INFO L74 IsIncluded]: Start isIncluded. First operand 352 states. Second operand 201 states. [2018-11-18 22:27:33,065 INFO L87 Difference]: Start difference. First operand 352 states. Second operand 201 states. [2018-11-18 22:27:33,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:33,072 INFO L93 Difference]: Finished difference Result 352 states and 401 transitions. [2018-11-18 22:27:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 401 transitions. [2018-11-18 22:27:33,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:33,072 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:33,072 INFO L74 IsIncluded]: Start isIncluded. First operand 201 states. Second operand 352 states. [2018-11-18 22:27:33,073 INFO L87 Difference]: Start difference. First operand 201 states. Second operand 352 states. [2018-11-18 22:27:33,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:33,079 INFO L93 Difference]: Finished difference Result 352 states and 401 transitions. [2018-11-18 22:27:33,079 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 401 transitions. [2018-11-18 22:27:33,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:33,079 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:33,080 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:33,080 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2018-11-18 22:27:33,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 240 transitions. [2018-11-18 22:27:33,083 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 240 transitions. Word has length 33 [2018-11-18 22:27:33,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:33,083 INFO L480 AbstractCegarLoop]: Abstraction has 201 states and 240 transitions. [2018-11-18 22:27:33,083 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 22:27:33,083 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 240 transitions. [2018-11-18 22:27:33,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 22:27:33,083 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:33,084 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:33,084 INFO L423 AbstractCegarLoop]: === Iteration 27 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:33,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:33,084 INFO L82 PathProgramCache]: Analyzing trace with hash 100470153, now seen corresponding path program 1 times [2018-11-18 22:27:33,085 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:33,085 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 28 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 28 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:33,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:33,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:33,275 INFO L256 TraceCheckUtils]: 0: Hoare triple {26419#true} call ULTIMATE.init(); {26419#true} is VALID [2018-11-18 22:27:33,275 INFO L273 TraceCheckUtils]: 1: Hoare triple {26419#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {26419#true} is VALID [2018-11-18 22:27:33,275 INFO L273 TraceCheckUtils]: 2: Hoare triple {26419#true} assume true; {26419#true} is VALID [2018-11-18 22:27:33,276 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {26419#true} {26419#true} #139#return; {26419#true} is VALID [2018-11-18 22:27:33,276 INFO L256 TraceCheckUtils]: 4: Hoare triple {26419#true} call #t~ret4 := main(); {26419#true} is VALID [2018-11-18 22:27:33,276 INFO L273 TraceCheckUtils]: 5: Hoare triple {26419#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {26419#true} is VALID [2018-11-18 22:27:33,276 INFO L273 TraceCheckUtils]: 6: Hoare triple {26419#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {26419#true} is VALID [2018-11-18 22:27:33,280 INFO L273 TraceCheckUtils]: 7: Hoare triple {26419#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,280 INFO L273 TraceCheckUtils]: 8: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,285 INFO L273 TraceCheckUtils]: 9: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,285 INFO L273 TraceCheckUtils]: 10: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,285 INFO L273 TraceCheckUtils]: 11: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,286 INFO L273 TraceCheckUtils]: 12: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,286 INFO L273 TraceCheckUtils]: 13: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,286 INFO L273 TraceCheckUtils]: 14: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,287 INFO L273 TraceCheckUtils]: 15: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,287 INFO L273 TraceCheckUtils]: 16: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,287 INFO L273 TraceCheckUtils]: 17: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {26445#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,288 INFO L273 TraceCheckUtils]: 18: Hoare triple {26445#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,288 INFO L273 TraceCheckUtils]: 19: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,288 INFO L273 TraceCheckUtils]: 20: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,289 INFO L273 TraceCheckUtils]: 21: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,289 INFO L273 TraceCheckUtils]: 22: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,290 INFO L273 TraceCheckUtils]: 23: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,290 INFO L273 TraceCheckUtils]: 24: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,291 INFO L273 TraceCheckUtils]: 25: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,291 INFO L273 TraceCheckUtils]: 26: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,292 INFO L273 TraceCheckUtils]: 27: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {26479#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,292 INFO L273 TraceCheckUtils]: 28: Hoare triple {26479#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {26510#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,293 INFO L273 TraceCheckUtils]: 29: Hoare triple {26510#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {26510#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,293 INFO L273 TraceCheckUtils]: 30: Hoare triple {26510#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {26510#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,294 INFO L273 TraceCheckUtils]: 31: Hoare triple {26510#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {26520#(= (bvadd main_~__VERIFIER_assert__cond~13 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:33,295 INFO L273 TraceCheckUtils]: 32: Hoare triple {26520#(= (bvadd main_~__VERIFIER_assert__cond~13 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~13; {26420#false} is VALID [2018-11-18 22:27:33,295 INFO L273 TraceCheckUtils]: 33: Hoare triple {26420#false} assume !false; {26420#false} is VALID [2018-11-18 22:27:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:33,296 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:33,386 INFO L273 TraceCheckUtils]: 33: Hoare triple {26420#false} assume !false; {26420#false} is VALID [2018-11-18 22:27:33,387 INFO L273 TraceCheckUtils]: 32: Hoare triple {26530#(not (= main_~__VERIFIER_assert__cond~13 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~13; {26420#false} is VALID [2018-11-18 22:27:33,388 INFO L273 TraceCheckUtils]: 31: Hoare triple {26534#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {26530#(not (= main_~__VERIFIER_assert__cond~13 (_ bv0 32)))} is VALID [2018-11-18 22:27:33,388 INFO L273 TraceCheckUtils]: 30: Hoare triple {26534#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {26534#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,389 INFO L273 TraceCheckUtils]: 29: Hoare triple {26534#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {26534#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,390 INFO L273 TraceCheckUtils]: 28: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {26534#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:33,390 INFO L273 TraceCheckUtils]: 27: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,391 INFO L273 TraceCheckUtils]: 26: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,392 INFO L273 TraceCheckUtils]: 25: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,393 INFO L273 TraceCheckUtils]: 24: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,393 INFO L273 TraceCheckUtils]: 23: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,393 INFO L273 TraceCheckUtils]: 22: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,393 INFO L273 TraceCheckUtils]: 21: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,394 INFO L273 TraceCheckUtils]: 20: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,394 INFO L273 TraceCheckUtils]: 19: Hoare triple {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,397 INFO L273 TraceCheckUtils]: 18: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {26544#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:33,398 INFO L273 TraceCheckUtils]: 17: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,398 INFO L273 TraceCheckUtils]: 16: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,398 INFO L273 TraceCheckUtils]: 15: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,399 INFO L273 TraceCheckUtils]: 14: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,399 INFO L273 TraceCheckUtils]: 13: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,399 INFO L273 TraceCheckUtils]: 12: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,400 INFO L273 TraceCheckUtils]: 11: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,400 INFO L273 TraceCheckUtils]: 10: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,401 INFO L273 TraceCheckUtils]: 9: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,401 INFO L273 TraceCheckUtils]: 8: Hoare triple {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,402 INFO L273 TraceCheckUtils]: 7: Hoare triple {26419#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {26575#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:33,402 INFO L273 TraceCheckUtils]: 6: Hoare triple {26419#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {26419#true} is VALID [2018-11-18 22:27:33,402 INFO L273 TraceCheckUtils]: 5: Hoare triple {26419#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {26419#true} is VALID [2018-11-18 22:27:33,402 INFO L256 TraceCheckUtils]: 4: Hoare triple {26419#true} call #t~ret4 := main(); {26419#true} is VALID [2018-11-18 22:27:33,403 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {26419#true} {26419#true} #139#return; {26419#true} is VALID [2018-11-18 22:27:33,403 INFO L273 TraceCheckUtils]: 2: Hoare triple {26419#true} assume true; {26419#true} is VALID [2018-11-18 22:27:33,403 INFO L273 TraceCheckUtils]: 1: Hoare triple {26419#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {26419#true} is VALID [2018-11-18 22:27:33,403 INFO L256 TraceCheckUtils]: 0: Hoare triple {26419#true} call ULTIMATE.init(); {26419#true} is VALID [2018-11-18 22:27:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:33,407 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:33,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2018-11-18 22:27:33,407 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-11-18 22:27:33,407 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:33,408 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2018-11-18 22:27:33,487 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 60 edges. 60 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:33,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 22:27:33,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 22:27:33,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 22:27:33,488 INFO L87 Difference]: Start difference. First operand 201 states and 240 transitions. Second operand 10 states. [2018-11-18 22:27:38,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:38,006 INFO L93 Difference]: Finished difference Result 636 states and 721 transitions. [2018-11-18 22:27:38,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 22:27:38,006 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 34 [2018-11-18 22:27:38,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 22:27:38,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 494 transitions. [2018-11-18 22:27:38,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 22:27:38,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 494 transitions. [2018-11-18 22:27:38,012 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 494 transitions. [2018-11-18 22:27:38,823 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 494 edges. 494 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:38,841 INFO L225 Difference]: With dead ends: 636 [2018-11-18 22:27:38,842 INFO L226 Difference]: Without dead ends: 634 [2018-11-18 22:27:38,842 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=371, Unknown=0, NotChecked=0, Total=552 [2018-11-18 22:27:38,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-11-18 22:27:39,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 238. [2018-11-18 22:27:39,670 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:39,671 INFO L82 GeneralOperation]: Start isEquivalent. First operand 634 states. Second operand 238 states. [2018-11-18 22:27:39,671 INFO L74 IsIncluded]: Start isIncluded. First operand 634 states. Second operand 238 states. [2018-11-18 22:27:39,671 INFO L87 Difference]: Start difference. First operand 634 states. Second operand 238 states. [2018-11-18 22:27:39,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:39,689 INFO L93 Difference]: Finished difference Result 634 states and 715 transitions. [2018-11-18 22:27:39,689 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 715 transitions. [2018-11-18 22:27:39,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:39,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:39,689 INFO L74 IsIncluded]: Start isIncluded. First operand 238 states. Second operand 634 states. [2018-11-18 22:27:39,690 INFO L87 Difference]: Start difference. First operand 238 states. Second operand 634 states. [2018-11-18 22:27:39,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:39,710 INFO L93 Difference]: Finished difference Result 634 states and 715 transitions. [2018-11-18 22:27:39,711 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 715 transitions. [2018-11-18 22:27:39,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:39,712 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:39,712 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:39,712 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:39,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-11-18 22:27:39,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 289 transitions. [2018-11-18 22:27:39,717 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 289 transitions. Word has length 34 [2018-11-18 22:27:39,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:39,717 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 289 transitions. [2018-11-18 22:27:39,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 22:27:39,717 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 289 transitions. [2018-11-18 22:27:39,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-11-18 22:27:39,718 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:39,718 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:39,718 INFO L423 AbstractCegarLoop]: === Iteration 28 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:39,719 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:39,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1180389396, now seen corresponding path program 1 times [2018-11-18 22:27:39,719 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:39,719 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 29 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 29 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:39,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:39,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:39,826 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:40,063 INFO L256 TraceCheckUtils]: 0: Hoare triple {28950#true} call ULTIMATE.init(); {28950#true} is VALID [2018-11-18 22:27:40,064 INFO L273 TraceCheckUtils]: 1: Hoare triple {28950#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {28950#true} is VALID [2018-11-18 22:27:40,064 INFO L273 TraceCheckUtils]: 2: Hoare triple {28950#true} assume true; {28950#true} is VALID [2018-11-18 22:27:40,064 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {28950#true} {28950#true} #139#return; {28950#true} is VALID [2018-11-18 22:27:40,064 INFO L256 TraceCheckUtils]: 4: Hoare triple {28950#true} call #t~ret4 := main(); {28950#true} is VALID [2018-11-18 22:27:40,064 INFO L273 TraceCheckUtils]: 5: Hoare triple {28950#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {28950#true} is VALID [2018-11-18 22:27:40,065 INFO L273 TraceCheckUtils]: 6: Hoare triple {28950#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {28973#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:40,066 INFO L273 TraceCheckUtils]: 7: Hoare triple {28973#(and (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {28977#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:40,067 INFO L273 TraceCheckUtils]: 8: Hoare triple {28977#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0); {28977#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:40,069 INFO L273 TraceCheckUtils]: 9: Hoare triple {28977#(and (= (_ bv0 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (= (bvadd main_~main__limit~0 (_ bv4 32)) main_~main__bufsize~0))} assume ~bvslt32(~main__j~0, ~main__limit~0); {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,071 INFO L273 TraceCheckUtils]: 10: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,072 INFO L273 TraceCheckUtils]: 11: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,073 INFO L273 TraceCheckUtils]: 12: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,075 INFO L273 TraceCheckUtils]: 13: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,077 INFO L273 TraceCheckUtils]: 14: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,079 INFO L273 TraceCheckUtils]: 15: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,081 INFO L273 TraceCheckUtils]: 16: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,083 INFO L273 TraceCheckUtils]: 17: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} is VALID [2018-11-18 22:27:40,084 INFO L273 TraceCheckUtils]: 18: Hoare triple {28984#(and (= (_ bv0 32) main_~main__j~0) (bvslt main_~main__j~0 (bvadd main_~main__bufsize~0 (_ bv4294967292 32))) (not (bvslt main_~main__bufsize~0 (_ bv0 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,084 INFO L273 TraceCheckUtils]: 19: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__i~0, ~main__len~0); {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,085 INFO L273 TraceCheckUtils]: 20: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~main__j~0, ~main__limit~0); {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,086 INFO L273 TraceCheckUtils]: 21: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,087 INFO L273 TraceCheckUtils]: 22: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,087 INFO L273 TraceCheckUtils]: 23: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,088 INFO L273 TraceCheckUtils]: 24: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,089 INFO L273 TraceCheckUtils]: 25: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,090 INFO L273 TraceCheckUtils]: 26: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,091 INFO L273 TraceCheckUtils]: 27: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,091 INFO L273 TraceCheckUtils]: 28: Hoare triple {29012#(and (= (_ bv1 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,092 INFO L273 TraceCheckUtils]: 29: Hoare triple {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,093 INFO L273 TraceCheckUtils]: 30: Hoare triple {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,094 INFO L273 TraceCheckUtils]: 31: Hoare triple {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} is VALID [2018-11-18 22:27:40,097 INFO L273 TraceCheckUtils]: 32: Hoare triple {29043#(and (= (_ bv2 32) main_~main__j~0) (not (bvslt main_~main__bufsize~0 (_ bv0 32))) (bvslt (_ bv0 32) (bvadd main_~main__bufsize~0 (_ bv4294967292 32))))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {29056#(= (bvadd main_~__VERIFIER_assert__cond~14 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:40,097 INFO L273 TraceCheckUtils]: 33: Hoare triple {29056#(= (bvadd main_~__VERIFIER_assert__cond~14 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~14; {28951#false} is VALID [2018-11-18 22:27:40,098 INFO L273 TraceCheckUtils]: 34: Hoare triple {28951#false} assume !false; {28951#false} is VALID [2018-11-18 22:27:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:40,101 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:40,453 INFO L273 TraceCheckUtils]: 34: Hoare triple {28951#false} assume !false; {28951#false} is VALID [2018-11-18 22:27:40,454 INFO L273 TraceCheckUtils]: 33: Hoare triple {29066#(not (= main_~__VERIFIER_assert__cond~14 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~14; {28951#false} is VALID [2018-11-18 22:27:40,456 INFO L273 TraceCheckUtils]: 32: Hoare triple {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {29066#(not (= main_~__VERIFIER_assert__cond~14 (_ bv0 32)))} is VALID [2018-11-18 22:27:40,457 INFO L273 TraceCheckUtils]: 31: Hoare triple {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,457 INFO L273 TraceCheckUtils]: 30: Hoare triple {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,457 INFO L273 TraceCheckUtils]: 29: Hoare triple {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,484 INFO L273 TraceCheckUtils]: 28: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {29070#(bvslt (bvadd main_~main__j~0 (_ bv1 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,484 INFO L273 TraceCheckUtils]: 27: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,484 INFO L273 TraceCheckUtils]: 26: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,485 INFO L273 TraceCheckUtils]: 25: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,485 INFO L273 TraceCheckUtils]: 24: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,485 INFO L273 TraceCheckUtils]: 23: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,486 INFO L273 TraceCheckUtils]: 22: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,486 INFO L273 TraceCheckUtils]: 21: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,486 INFO L273 TraceCheckUtils]: 20: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,487 INFO L273 TraceCheckUtils]: 19: Hoare triple {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,515 INFO L273 TraceCheckUtils]: 18: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {29083#(bvslt (bvadd main_~main__j~0 (_ bv2 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,516 INFO L273 TraceCheckUtils]: 17: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,516 INFO L273 TraceCheckUtils]: 16: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,517 INFO L273 TraceCheckUtils]: 15: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,517 INFO L273 TraceCheckUtils]: 14: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,517 INFO L273 TraceCheckUtils]: 13: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,518 INFO L273 TraceCheckUtils]: 12: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,518 INFO L273 TraceCheckUtils]: 11: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,518 INFO L273 TraceCheckUtils]: 10: Hoare triple {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,519 INFO L273 TraceCheckUtils]: 9: Hoare triple {29142#(or (bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {29114#(bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0)} is VALID [2018-11-18 22:27:40,519 INFO L273 TraceCheckUtils]: 8: Hoare triple {29142#(or (bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} assume ~bvslt32(~main__i~0, ~main__len~0); {29142#(or (bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} is VALID [2018-11-18 22:27:40,520 INFO L273 TraceCheckUtils]: 7: Hoare triple {29149#(or (not (bvslt (_ bv0 32) main_~main__limit~0)) (bvslt (_ bv3 32) main_~main__bufsize~0))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {29142#(or (bvslt (bvadd main_~main__j~0 (_ bv3 32)) main_~main__bufsize~0) (not (bvslt main_~main__j~0 main_~main__limit~0)))} is VALID [2018-11-18 22:27:40,522 INFO L273 TraceCheckUtils]: 6: Hoare triple {28950#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {29149#(or (not (bvslt (_ bv0 32) main_~main__limit~0)) (bvslt (_ bv3 32) main_~main__bufsize~0))} is VALID [2018-11-18 22:27:40,522 INFO L273 TraceCheckUtils]: 5: Hoare triple {28950#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {28950#true} is VALID [2018-11-18 22:27:40,522 INFO L256 TraceCheckUtils]: 4: Hoare triple {28950#true} call #t~ret4 := main(); {28950#true} is VALID [2018-11-18 22:27:40,522 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {28950#true} {28950#true} #139#return; {28950#true} is VALID [2018-11-18 22:27:40,522 INFO L273 TraceCheckUtils]: 2: Hoare triple {28950#true} assume true; {28950#true} is VALID [2018-11-18 22:27:40,523 INFO L273 TraceCheckUtils]: 1: Hoare triple {28950#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {28950#true} is VALID [2018-11-18 22:27:40,523 INFO L256 TraceCheckUtils]: 0: Hoare triple {28950#true} call ULTIMATE.init(); {28950#true} is VALID [2018-11-18 22:27:40,525 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:40,526 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:40,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-18 22:27:40,527 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2018-11-18 22:27:40,527 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:40,527 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-18 22:27:40,690 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:40,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 22:27:40,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 22:27:40,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2018-11-18 22:27:40,691 INFO L87 Difference]: Start difference. First operand 238 states and 289 transitions. Second operand 14 states. [2018-11-18 22:27:48,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:48,860 INFO L93 Difference]: Finished difference Result 378 states and 437 transitions. [2018-11-18 22:27:48,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-18 22:27:48,860 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 35 [2018-11-18 22:27:48,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:48,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:27:48,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 222 transitions. [2018-11-18 22:27:48,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:27:48,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 222 transitions. [2018-11-18 22:27:48,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 19 states and 222 transitions. [2018-11-18 22:27:50,286 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 222 edges. 222 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:50,296 INFO L225 Difference]: With dead ends: 378 [2018-11-18 22:27:50,296 INFO L226 Difference]: Without dead ends: 376 [2018-11-18 22:27:50,297 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=230, Invalid=582, Unknown=0, NotChecked=0, Total=812 [2018-11-18 22:27:50,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2018-11-18 22:27:50,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 236. [2018-11-18 22:27:50,856 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:27:50,856 INFO L82 GeneralOperation]: Start isEquivalent. First operand 376 states. Second operand 236 states. [2018-11-18 22:27:50,856 INFO L74 IsIncluded]: Start isIncluded. First operand 376 states. Second operand 236 states. [2018-11-18 22:27:50,857 INFO L87 Difference]: Start difference. First operand 376 states. Second operand 236 states. [2018-11-18 22:27:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:50,864 INFO L93 Difference]: Finished difference Result 376 states and 433 transitions. [2018-11-18 22:27:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 433 transitions. [2018-11-18 22:27:50,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:50,865 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:50,865 INFO L74 IsIncluded]: Start isIncluded. First operand 236 states. Second operand 376 states. [2018-11-18 22:27:50,865 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 376 states. [2018-11-18 22:27:50,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:50,872 INFO L93 Difference]: Finished difference Result 376 states and 433 transitions. [2018-11-18 22:27:50,872 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 433 transitions. [2018-11-18 22:27:50,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:27:50,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:27:50,873 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:27:50,873 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:27:50,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-11-18 22:27:50,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 285 transitions. [2018-11-18 22:27:50,876 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 285 transitions. Word has length 35 [2018-11-18 22:27:50,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:27:50,877 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 285 transitions. [2018-11-18 22:27:50,877 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 22:27:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 285 transitions. [2018-11-18 22:27:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 22:27:50,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:27:50,877 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:27:50,878 INFO L423 AbstractCegarLoop]: === Iteration 29 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:27:50,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:27:50,878 INFO L82 PathProgramCache]: Analyzing trace with hash 2062637551, now seen corresponding path program 1 times [2018-11-18 22:27:50,878 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:27:50,878 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 30 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 30 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:27:50,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:27:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:27:50,978 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:27:51,060 INFO L256 TraceCheckUtils]: 0: Hoare triple {30679#true} call ULTIMATE.init(); {30679#true} is VALID [2018-11-18 22:27:51,061 INFO L273 TraceCheckUtils]: 1: Hoare triple {30679#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {30679#true} is VALID [2018-11-18 22:27:51,061 INFO L273 TraceCheckUtils]: 2: Hoare triple {30679#true} assume true; {30679#true} is VALID [2018-11-18 22:27:51,061 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {30679#true} {30679#true} #139#return; {30679#true} is VALID [2018-11-18 22:27:51,061 INFO L256 TraceCheckUtils]: 4: Hoare triple {30679#true} call #t~ret4 := main(); {30679#true} is VALID [2018-11-18 22:27:51,062 INFO L273 TraceCheckUtils]: 5: Hoare triple {30679#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {30679#true} is VALID [2018-11-18 22:27:51,062 INFO L273 TraceCheckUtils]: 6: Hoare triple {30679#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {30679#true} is VALID [2018-11-18 22:27:51,062 INFO L273 TraceCheckUtils]: 7: Hoare triple {30679#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,063 INFO L273 TraceCheckUtils]: 8: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,063 INFO L273 TraceCheckUtils]: 9: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,063 INFO L273 TraceCheckUtils]: 10: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,064 INFO L273 TraceCheckUtils]: 11: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,064 INFO L273 TraceCheckUtils]: 12: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,064 INFO L273 TraceCheckUtils]: 13: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,065 INFO L273 TraceCheckUtils]: 14: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,065 INFO L273 TraceCheckUtils]: 15: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,066 INFO L273 TraceCheckUtils]: 16: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,066 INFO L273 TraceCheckUtils]: 17: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {30705#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,067 INFO L273 TraceCheckUtils]: 18: Hoare triple {30705#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,067 INFO L273 TraceCheckUtils]: 19: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,068 INFO L273 TraceCheckUtils]: 20: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,068 INFO L273 TraceCheckUtils]: 21: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,069 INFO L273 TraceCheckUtils]: 22: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,069 INFO L273 TraceCheckUtils]: 23: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,070 INFO L273 TraceCheckUtils]: 24: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,070 INFO L273 TraceCheckUtils]: 25: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,071 INFO L273 TraceCheckUtils]: 26: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,071 INFO L273 TraceCheckUtils]: 27: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {30739#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,072 INFO L273 TraceCheckUtils]: 28: Hoare triple {30739#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {30770#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,073 INFO L273 TraceCheckUtils]: 29: Hoare triple {30770#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {30770#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,073 INFO L273 TraceCheckUtils]: 30: Hoare triple {30770#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {30770#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,074 INFO L273 TraceCheckUtils]: 31: Hoare triple {30770#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {30770#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,074 INFO L273 TraceCheckUtils]: 32: Hoare triple {30770#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {30783#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,075 INFO L273 TraceCheckUtils]: 33: Hoare triple {30783#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {30787#(= (bvadd main_~__VERIFIER_assert__cond~15 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:27:51,076 INFO L273 TraceCheckUtils]: 34: Hoare triple {30787#(= (bvadd main_~__VERIFIER_assert__cond~15 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~15; {30680#false} is VALID [2018-11-18 22:27:51,076 INFO L273 TraceCheckUtils]: 35: Hoare triple {30680#false} assume !false; {30680#false} is VALID [2018-11-18 22:27:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:51,078 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:27:51,195 INFO L273 TraceCheckUtils]: 35: Hoare triple {30680#false} assume !false; {30680#false} is VALID [2018-11-18 22:27:51,196 INFO L273 TraceCheckUtils]: 34: Hoare triple {30797#(not (= main_~__VERIFIER_assert__cond~15 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~15; {30680#false} is VALID [2018-11-18 22:27:51,196 INFO L273 TraceCheckUtils]: 33: Hoare triple {30801#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {30797#(not (= main_~__VERIFIER_assert__cond~15 (_ bv0 32)))} is VALID [2018-11-18 22:27:51,197 INFO L273 TraceCheckUtils]: 32: Hoare triple {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {30801#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:27:51,198 INFO L273 TraceCheckUtils]: 31: Hoare triple {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:51,198 INFO L273 TraceCheckUtils]: 30: Hoare triple {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:51,199 INFO L273 TraceCheckUtils]: 29: Hoare triple {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:51,203 INFO L273 TraceCheckUtils]: 28: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {30805#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:27:51,203 INFO L273 TraceCheckUtils]: 27: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,203 INFO L273 TraceCheckUtils]: 26: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,204 INFO L273 TraceCheckUtils]: 25: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,204 INFO L273 TraceCheckUtils]: 24: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,204 INFO L273 TraceCheckUtils]: 23: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,205 INFO L273 TraceCheckUtils]: 22: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,205 INFO L273 TraceCheckUtils]: 21: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,206 INFO L273 TraceCheckUtils]: 20: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,206 INFO L273 TraceCheckUtils]: 19: Hoare triple {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,210 INFO L273 TraceCheckUtils]: 18: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {30818#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:27:51,210 INFO L273 TraceCheckUtils]: 17: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,211 INFO L273 TraceCheckUtils]: 16: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,211 INFO L273 TraceCheckUtils]: 15: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,212 INFO L273 TraceCheckUtils]: 14: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,212 INFO L273 TraceCheckUtils]: 13: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,212 INFO L273 TraceCheckUtils]: 12: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,212 INFO L273 TraceCheckUtils]: 11: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,213 INFO L273 TraceCheckUtils]: 10: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,213 INFO L273 TraceCheckUtils]: 9: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,214 INFO L273 TraceCheckUtils]: 8: Hoare triple {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,214 INFO L273 TraceCheckUtils]: 7: Hoare triple {30679#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {30849#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:27:51,214 INFO L273 TraceCheckUtils]: 6: Hoare triple {30679#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {30679#true} is VALID [2018-11-18 22:27:51,215 INFO L273 TraceCheckUtils]: 5: Hoare triple {30679#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {30679#true} is VALID [2018-11-18 22:27:51,215 INFO L256 TraceCheckUtils]: 4: Hoare triple {30679#true} call #t~ret4 := main(); {30679#true} is VALID [2018-11-18 22:27:51,215 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {30679#true} {30679#true} #139#return; {30679#true} is VALID [2018-11-18 22:27:51,215 INFO L273 TraceCheckUtils]: 2: Hoare triple {30679#true} assume true; {30679#true} is VALID [2018-11-18 22:27:51,215 INFO L273 TraceCheckUtils]: 1: Hoare triple {30679#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {30679#true} is VALID [2018-11-18 22:27:51,216 INFO L256 TraceCheckUtils]: 0: Hoare triple {30679#true} call ULTIMATE.init(); {30679#true} is VALID [2018-11-18 22:27:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:27:51,219 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:27:51,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-18 22:27:51,220 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-11-18 22:27:51,220 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:27:51,220 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2018-11-18 22:27:51,319 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 64 edges. 64 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:51,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 22:27:51,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 22:27:51,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2018-11-18 22:27:51,320 INFO L87 Difference]: Start difference. First operand 236 states and 285 transitions. Second operand 12 states. [2018-11-18 22:27:58,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:27:58,039 INFO L93 Difference]: Finished difference Result 918 states and 1050 transitions. [2018-11-18 22:27:58,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-18 22:27:58,039 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2018-11-18 22:27:58,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:27:58,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 22:27:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 668 transitions. [2018-11-18 22:27:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 22:27:58,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 668 transitions. [2018-11-18 22:27:58,045 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 28 states and 668 transitions. [2018-11-18 22:27:59,072 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 668 edges. 668 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:27:59,108 INFO L225 Difference]: With dead ends: 918 [2018-11-18 22:27:59,108 INFO L226 Difference]: Without dead ends: 916 [2018-11-18 22:27:59,109 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=294, Invalid=636, Unknown=0, NotChecked=0, Total=930 [2018-11-18 22:27:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2018-11-18 22:28:00,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 360. [2018-11-18 22:28:00,409 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:28:00,409 INFO L82 GeneralOperation]: Start isEquivalent. First operand 916 states. Second operand 360 states. [2018-11-18 22:28:00,410 INFO L74 IsIncluded]: Start isIncluded. First operand 916 states. Second operand 360 states. [2018-11-18 22:28:00,410 INFO L87 Difference]: Start difference. First operand 916 states. Second operand 360 states. [2018-11-18 22:28:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:00,443 INFO L93 Difference]: Finished difference Result 916 states and 1043 transitions. [2018-11-18 22:28:00,443 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1043 transitions. [2018-11-18 22:28:00,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:00,444 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:00,444 INFO L74 IsIncluded]: Start isIncluded. First operand 360 states. Second operand 916 states. [2018-11-18 22:28:00,444 INFO L87 Difference]: Start difference. First operand 360 states. Second operand 916 states. [2018-11-18 22:28:00,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:00,470 INFO L93 Difference]: Finished difference Result 916 states and 1043 transitions. [2018-11-18 22:28:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1043 transitions. [2018-11-18 22:28:00,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:00,471 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:00,471 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:28:00,471 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:28:00,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2018-11-18 22:28:00,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 446 transitions. [2018-11-18 22:28:00,477 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 446 transitions. Word has length 36 [2018-11-18 22:28:00,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:28:00,477 INFO L480 AbstractCegarLoop]: Abstraction has 360 states and 446 transitions. [2018-11-18 22:28:00,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 22:28:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 446 transitions. [2018-11-18 22:28:00,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 22:28:00,478 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:28:00,478 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:28:00,478 INFO L423 AbstractCegarLoop]: === Iteration 30 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:28:00,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:28:00,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1930990150, now seen corresponding path program 1 times [2018-11-18 22:28:00,479 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:28:00,479 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 31 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 31 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:28:00,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:28:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:00,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:28:00,700 INFO L256 TraceCheckUtils]: 0: Hoare triple {34263#true} call ULTIMATE.init(); {34263#true} is VALID [2018-11-18 22:28:00,700 INFO L273 TraceCheckUtils]: 1: Hoare triple {34263#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {34263#true} is VALID [2018-11-18 22:28:00,700 INFO L273 TraceCheckUtils]: 2: Hoare triple {34263#true} assume true; {34263#true} is VALID [2018-11-18 22:28:00,700 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {34263#true} {34263#true} #139#return; {34263#true} is VALID [2018-11-18 22:28:00,701 INFO L256 TraceCheckUtils]: 4: Hoare triple {34263#true} call #t~ret4 := main(); {34263#true} is VALID [2018-11-18 22:28:00,701 INFO L273 TraceCheckUtils]: 5: Hoare triple {34263#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {34263#true} is VALID [2018-11-18 22:28:00,701 INFO L273 TraceCheckUtils]: 6: Hoare triple {34263#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {34263#true} is VALID [2018-11-18 22:28:00,702 INFO L273 TraceCheckUtils]: 7: Hoare triple {34263#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,702 INFO L273 TraceCheckUtils]: 8: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,703 INFO L273 TraceCheckUtils]: 9: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,703 INFO L273 TraceCheckUtils]: 10: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,703 INFO L273 TraceCheckUtils]: 11: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,703 INFO L273 TraceCheckUtils]: 12: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,704 INFO L273 TraceCheckUtils]: 13: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,704 INFO L273 TraceCheckUtils]: 14: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,705 INFO L273 TraceCheckUtils]: 15: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,705 INFO L273 TraceCheckUtils]: 16: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,706 INFO L273 TraceCheckUtils]: 17: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {34289#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,706 INFO L273 TraceCheckUtils]: 18: Hoare triple {34289#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,707 INFO L273 TraceCheckUtils]: 19: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,708 INFO L273 TraceCheckUtils]: 20: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,708 INFO L273 TraceCheckUtils]: 21: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,709 INFO L273 TraceCheckUtils]: 22: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,709 INFO L273 TraceCheckUtils]: 23: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,710 INFO L273 TraceCheckUtils]: 24: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,710 INFO L273 TraceCheckUtils]: 25: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,711 INFO L273 TraceCheckUtils]: 26: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,711 INFO L273 TraceCheckUtils]: 27: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {34323#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,712 INFO L273 TraceCheckUtils]: 28: Hoare triple {34323#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {34354#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,713 INFO L273 TraceCheckUtils]: 29: Hoare triple {34354#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {34354#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,713 INFO L273 TraceCheckUtils]: 30: Hoare triple {34354#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {34354#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,714 INFO L273 TraceCheckUtils]: 31: Hoare triple {34354#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {34354#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,714 INFO L273 TraceCheckUtils]: 32: Hoare triple {34354#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {34367#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,715 INFO L273 TraceCheckUtils]: 33: Hoare triple {34367#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {34367#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,716 INFO L273 TraceCheckUtils]: 34: Hoare triple {34367#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {34374#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,716 INFO L273 TraceCheckUtils]: 35: Hoare triple {34374#(= (_ bv4 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {34374#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,717 INFO L273 TraceCheckUtils]: 36: Hoare triple {34374#(= (_ bv4 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {34374#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,717 INFO L273 TraceCheckUtils]: 37: Hoare triple {34374#(= (_ bv4 32) main_~main__j~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {34374#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,718 INFO L273 TraceCheckUtils]: 38: Hoare triple {34374#(= (_ bv4 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {34374#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,718 INFO L273 TraceCheckUtils]: 39: Hoare triple {34374#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {34374#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,719 INFO L273 TraceCheckUtils]: 40: Hoare triple {34374#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {34374#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,720 INFO L273 TraceCheckUtils]: 41: Hoare triple {34374#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {34396#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:28:00,721 INFO L273 TraceCheckUtils]: 42: Hoare triple {34396#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~5; {34264#false} is VALID [2018-11-18 22:28:00,721 INFO L273 TraceCheckUtils]: 43: Hoare triple {34264#false} assume !false; {34264#false} is VALID [2018-11-18 22:28:00,724 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:00,724 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:28:00,872 INFO L273 TraceCheckUtils]: 43: Hoare triple {34264#false} assume !false; {34264#false} is VALID [2018-11-18 22:28:00,873 INFO L273 TraceCheckUtils]: 42: Hoare triple {34406#(not (= main_~__VERIFIER_assert__cond~5 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~5; {34264#false} is VALID [2018-11-18 22:28:00,874 INFO L273 TraceCheckUtils]: 41: Hoare triple {34410#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {34406#(not (= main_~__VERIFIER_assert__cond~5 (_ bv0 32)))} is VALID [2018-11-18 22:28:00,874 INFO L273 TraceCheckUtils]: 40: Hoare triple {34410#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {34410#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,874 INFO L273 TraceCheckUtils]: 39: Hoare triple {34410#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {34410#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,875 INFO L273 TraceCheckUtils]: 38: Hoare triple {34410#(bvsle (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {34410#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,875 INFO L273 TraceCheckUtils]: 37: Hoare triple {34410#(bvsle (_ bv0 32) main_~main__j~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {34410#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,875 INFO L273 TraceCheckUtils]: 36: Hoare triple {34410#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {34410#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,875 INFO L273 TraceCheckUtils]: 35: Hoare triple {34410#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {34410#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,876 INFO L273 TraceCheckUtils]: 34: Hoare triple {34432#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {34410#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:00,877 INFO L273 TraceCheckUtils]: 33: Hoare triple {34432#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {34432#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:00,881 INFO L273 TraceCheckUtils]: 32: Hoare triple {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {34432#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:00,881 INFO L273 TraceCheckUtils]: 31: Hoare triple {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:00,882 INFO L273 TraceCheckUtils]: 30: Hoare triple {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:00,882 INFO L273 TraceCheckUtils]: 29: Hoare triple {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:00,885 INFO L273 TraceCheckUtils]: 28: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {34439#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:00,885 INFO L273 TraceCheckUtils]: 27: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,885 INFO L273 TraceCheckUtils]: 26: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,886 INFO L273 TraceCheckUtils]: 25: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,886 INFO L273 TraceCheckUtils]: 24: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,886 INFO L273 TraceCheckUtils]: 23: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,887 INFO L273 TraceCheckUtils]: 22: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,887 INFO L273 TraceCheckUtils]: 21: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,887 INFO L273 TraceCheckUtils]: 20: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,887 INFO L273 TraceCheckUtils]: 19: Hoare triple {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,891 INFO L273 TraceCheckUtils]: 18: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {34452#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:00,892 INFO L273 TraceCheckUtils]: 17: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,892 INFO L273 TraceCheckUtils]: 16: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,892 INFO L273 TraceCheckUtils]: 15: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,893 INFO L273 TraceCheckUtils]: 14: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,893 INFO L273 TraceCheckUtils]: 13: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,893 INFO L273 TraceCheckUtils]: 12: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,894 INFO L273 TraceCheckUtils]: 11: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,894 INFO L273 TraceCheckUtils]: 10: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,895 INFO L273 TraceCheckUtils]: 9: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,895 INFO L273 TraceCheckUtils]: 8: Hoare triple {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,896 INFO L273 TraceCheckUtils]: 7: Hoare triple {34263#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {34483#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:00,896 INFO L273 TraceCheckUtils]: 6: Hoare triple {34263#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {34263#true} is VALID [2018-11-18 22:28:00,896 INFO L273 TraceCheckUtils]: 5: Hoare triple {34263#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {34263#true} is VALID [2018-11-18 22:28:00,897 INFO L256 TraceCheckUtils]: 4: Hoare triple {34263#true} call #t~ret4 := main(); {34263#true} is VALID [2018-11-18 22:28:00,897 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {34263#true} {34263#true} #139#return; {34263#true} is VALID [2018-11-18 22:28:00,897 INFO L273 TraceCheckUtils]: 2: Hoare triple {34263#true} assume true; {34263#true} is VALID [2018-11-18 22:28:00,897 INFO L273 TraceCheckUtils]: 1: Hoare triple {34263#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {34263#true} is VALID [2018-11-18 22:28:00,897 INFO L256 TraceCheckUtils]: 0: Hoare triple {34263#true} call ULTIMATE.init(); {34263#true} is VALID [2018-11-18 22:28:00,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:00,907 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:28:00,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-18 22:28:00,908 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-11-18 22:28:00,908 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:28:00,908 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-18 22:28:01,043 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 80 edges. 80 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:01,044 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 22:28:01,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 22:28:01,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-18 22:28:01,045 INFO L87 Difference]: Start difference. First operand 360 states and 446 transitions. Second operand 14 states. [2018-11-18 22:28:08,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:08,783 INFO L93 Difference]: Finished difference Result 1070 states and 1244 transitions. [2018-11-18 22:28:08,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 22:28:08,783 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 44 [2018-11-18 22:28:08,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:28:08,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:08,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 641 transitions. [2018-11-18 22:28:08,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 641 transitions. [2018-11-18 22:28:08,790 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 641 transitions. [2018-11-18 22:28:09,752 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 641 edges. 641 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:09,796 INFO L225 Difference]: With dead ends: 1070 [2018-11-18 22:28:09,796 INFO L226 Difference]: Without dead ends: 1039 [2018-11-18 22:28:09,797 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=434, Invalid=972, Unknown=0, NotChecked=0, Total=1406 [2018-11-18 22:28:09,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2018-11-18 22:28:11,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 450. [2018-11-18 22:28:11,011 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:28:11,011 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1039 states. Second operand 450 states. [2018-11-18 22:28:11,011 INFO L74 IsIncluded]: Start isIncluded. First operand 1039 states. Second operand 450 states. [2018-11-18 22:28:11,011 INFO L87 Difference]: Start difference. First operand 1039 states. Second operand 450 states. [2018-11-18 22:28:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:11,051 INFO L93 Difference]: Finished difference Result 1039 states and 1187 transitions. [2018-11-18 22:28:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1187 transitions. [2018-11-18 22:28:11,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:11,052 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:11,052 INFO L74 IsIncluded]: Start isIncluded. First operand 450 states. Second operand 1039 states. [2018-11-18 22:28:11,052 INFO L87 Difference]: Start difference. First operand 450 states. Second operand 1039 states. [2018-11-18 22:28:11,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:11,086 INFO L93 Difference]: Finished difference Result 1039 states and 1187 transitions. [2018-11-18 22:28:11,086 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1187 transitions. [2018-11-18 22:28:11,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:11,087 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:11,087 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:28:11,088 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:28:11,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2018-11-18 22:28:11,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 556 transitions. [2018-11-18 22:28:11,096 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 556 transitions. Word has length 44 [2018-11-18 22:28:11,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:28:11,096 INFO L480 AbstractCegarLoop]: Abstraction has 450 states and 556 transitions. [2018-11-18 22:28:11,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 22:28:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 556 transitions. [2018-11-18 22:28:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 22:28:11,097 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:28:11,097 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:28:11,097 INFO L423 AbstractCegarLoop]: === Iteration 31 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:28:11,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:28:11,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1963559894, now seen corresponding path program 1 times [2018-11-18 22:28:11,098 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:28:11,098 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 32 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 32 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:28:11,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:28:11,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:11,247 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:28:11,322 INFO L256 TraceCheckUtils]: 0: Hoare triple {38422#true} call ULTIMATE.init(); {38422#true} is VALID [2018-11-18 22:28:11,322 INFO L273 TraceCheckUtils]: 1: Hoare triple {38422#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {38422#true} is VALID [2018-11-18 22:28:11,323 INFO L273 TraceCheckUtils]: 2: Hoare triple {38422#true} assume true; {38422#true} is VALID [2018-11-18 22:28:11,323 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {38422#true} {38422#true} #139#return; {38422#true} is VALID [2018-11-18 22:28:11,323 INFO L256 TraceCheckUtils]: 4: Hoare triple {38422#true} call #t~ret4 := main(); {38422#true} is VALID [2018-11-18 22:28:11,323 INFO L273 TraceCheckUtils]: 5: Hoare triple {38422#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {38422#true} is VALID [2018-11-18 22:28:11,324 INFO L273 TraceCheckUtils]: 6: Hoare triple {38422#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,324 INFO L273 TraceCheckUtils]: 7: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,325 INFO L273 TraceCheckUtils]: 8: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,325 INFO L273 TraceCheckUtils]: 9: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,325 INFO L273 TraceCheckUtils]: 10: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,326 INFO L273 TraceCheckUtils]: 11: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,326 INFO L273 TraceCheckUtils]: 12: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,326 INFO L273 TraceCheckUtils]: 13: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,327 INFO L273 TraceCheckUtils]: 14: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,327 INFO L273 TraceCheckUtils]: 15: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,327 INFO L273 TraceCheckUtils]: 16: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {38445#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,330 INFO L273 TraceCheckUtils]: 17: Hoare triple {38445#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {38479#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,331 INFO L273 TraceCheckUtils]: 18: Hoare triple {38479#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {38479#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,332 INFO L273 TraceCheckUtils]: 19: Hoare triple {38479#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {38479#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,332 INFO L273 TraceCheckUtils]: 20: Hoare triple {38479#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {38479#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,333 INFO L273 TraceCheckUtils]: 21: Hoare triple {38479#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,333 INFO L273 TraceCheckUtils]: 22: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,333 INFO L273 TraceCheckUtils]: 23: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,334 INFO L273 TraceCheckUtils]: 24: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,334 INFO L273 TraceCheckUtils]: 25: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,334 INFO L273 TraceCheckUtils]: 26: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,335 INFO L273 TraceCheckUtils]: 27: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,335 INFO L273 TraceCheckUtils]: 28: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,336 INFO L273 TraceCheckUtils]: 29: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,336 INFO L273 TraceCheckUtils]: 30: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,337 INFO L273 TraceCheckUtils]: 31: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,337 INFO L273 TraceCheckUtils]: 32: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {38492#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,338 INFO L273 TraceCheckUtils]: 33: Hoare triple {38492#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {38529#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,339 INFO L273 TraceCheckUtils]: 34: Hoare triple {38529#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {38529#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,339 INFO L273 TraceCheckUtils]: 35: Hoare triple {38529#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {38529#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,340 INFO L273 TraceCheckUtils]: 36: Hoare triple {38529#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {38529#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,341 INFO L273 TraceCheckUtils]: 37: Hoare triple {38529#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {38542#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,341 INFO L273 TraceCheckUtils]: 38: Hoare triple {38542#(= (_ bv4 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {38542#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,342 INFO L273 TraceCheckUtils]: 39: Hoare triple {38542#(= (_ bv4 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {38542#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,342 INFO L273 TraceCheckUtils]: 40: Hoare triple {38542#(= (_ bv4 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {38542#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,343 INFO L273 TraceCheckUtils]: 41: Hoare triple {38542#(= (_ bv4 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {38542#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,343 INFO L273 TraceCheckUtils]: 42: Hoare triple {38542#(= (_ bv4 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {38542#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,344 INFO L273 TraceCheckUtils]: 43: Hoare triple {38542#(= (_ bv4 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {38561#(= (_ bv1 32) main_~__VERIFIER_assert__cond~1)} is VALID [2018-11-18 22:28:11,345 INFO L273 TraceCheckUtils]: 44: Hoare triple {38561#(= (_ bv1 32) main_~__VERIFIER_assert__cond~1)} assume 0bv32 == ~__VERIFIER_assert__cond~1; {38423#false} is VALID [2018-11-18 22:28:11,345 INFO L273 TraceCheckUtils]: 45: Hoare triple {38423#false} assume !false; {38423#false} is VALID [2018-11-18 22:28:11,347 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:11,347 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:28:11,492 INFO L273 TraceCheckUtils]: 45: Hoare triple {38423#false} assume !false; {38423#false} is VALID [2018-11-18 22:28:11,493 INFO L273 TraceCheckUtils]: 44: Hoare triple {38571#(not (= main_~__VERIFIER_assert__cond~1 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~1; {38423#false} is VALID [2018-11-18 22:28:11,494 INFO L273 TraceCheckUtils]: 43: Hoare triple {38575#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {38571#(not (= main_~__VERIFIER_assert__cond~1 (_ bv0 32)))} is VALID [2018-11-18 22:28:11,494 INFO L273 TraceCheckUtils]: 42: Hoare triple {38575#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {38575#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,495 INFO L273 TraceCheckUtils]: 41: Hoare triple {38575#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {38575#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,495 INFO L273 TraceCheckUtils]: 40: Hoare triple {38575#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {38575#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,495 INFO L273 TraceCheckUtils]: 39: Hoare triple {38575#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {38575#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,496 INFO L273 TraceCheckUtils]: 38: Hoare triple {38575#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {38575#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,499 INFO L273 TraceCheckUtils]: 37: Hoare triple {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {38575#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:11,499 INFO L273 TraceCheckUtils]: 36: Hoare triple {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:11,500 INFO L273 TraceCheckUtils]: 35: Hoare triple {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:11,500 INFO L273 TraceCheckUtils]: 34: Hoare triple {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:11,503 INFO L273 TraceCheckUtils]: 33: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {38594#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:11,504 INFO L273 TraceCheckUtils]: 32: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,504 INFO L273 TraceCheckUtils]: 31: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,505 INFO L273 TraceCheckUtils]: 30: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,505 INFO L273 TraceCheckUtils]: 29: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,505 INFO L273 TraceCheckUtils]: 28: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,505 INFO L273 TraceCheckUtils]: 27: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,506 INFO L273 TraceCheckUtils]: 26: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,506 INFO L273 TraceCheckUtils]: 25: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,506 INFO L273 TraceCheckUtils]: 24: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,507 INFO L273 TraceCheckUtils]: 23: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,507 INFO L273 TraceCheckUtils]: 22: Hoare triple {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,511 INFO L273 TraceCheckUtils]: 21: Hoare triple {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {38607#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:11,511 INFO L273 TraceCheckUtils]: 20: Hoare triple {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:11,511 INFO L273 TraceCheckUtils]: 19: Hoare triple {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:11,512 INFO L273 TraceCheckUtils]: 18: Hoare triple {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:11,515 INFO L273 TraceCheckUtils]: 17: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {38644#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:11,515 INFO L273 TraceCheckUtils]: 16: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,516 INFO L273 TraceCheckUtils]: 15: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,516 INFO L273 TraceCheckUtils]: 14: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,516 INFO L273 TraceCheckUtils]: 13: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,517 INFO L273 TraceCheckUtils]: 12: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,517 INFO L273 TraceCheckUtils]: 11: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,517 INFO L273 TraceCheckUtils]: 10: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,518 INFO L273 TraceCheckUtils]: 9: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,518 INFO L273 TraceCheckUtils]: 8: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,519 INFO L273 TraceCheckUtils]: 7: Hoare triple {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,519 INFO L273 TraceCheckUtils]: 6: Hoare triple {38422#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {38657#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:11,519 INFO L273 TraceCheckUtils]: 5: Hoare triple {38422#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {38422#true} is VALID [2018-11-18 22:28:11,520 INFO L256 TraceCheckUtils]: 4: Hoare triple {38422#true} call #t~ret4 := main(); {38422#true} is VALID [2018-11-18 22:28:11,520 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {38422#true} {38422#true} #139#return; {38422#true} is VALID [2018-11-18 22:28:11,520 INFO L273 TraceCheckUtils]: 2: Hoare triple {38422#true} assume true; {38422#true} is VALID [2018-11-18 22:28:11,520 INFO L273 TraceCheckUtils]: 1: Hoare triple {38422#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {38422#true} is VALID [2018-11-18 22:28:11,520 INFO L256 TraceCheckUtils]: 0: Hoare triple {38422#true} call ULTIMATE.init(); {38422#true} is VALID [2018-11-18 22:28:11,524 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:11,526 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:28:11,526 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-18 22:28:11,526 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 46 [2018-11-18 22:28:11,527 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:28:11,527 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-18 22:28:11,652 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 85 edges. 85 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:11,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 22:28:11,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 22:28:11,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-18 22:28:11,653 INFO L87 Difference]: Start difference. First operand 450 states and 556 transitions. Second operand 14 states. [2018-11-18 22:28:18,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:18,736 INFO L93 Difference]: Finished difference Result 1583 states and 1923 transitions. [2018-11-18 22:28:18,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 22:28:18,736 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 46 [2018-11-18 22:28:18,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:28:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:18,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 259 transitions. [2018-11-18 22:28:18,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:18,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 259 transitions. [2018-11-18 22:28:18,739 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 259 transitions. [2018-11-18 22:28:19,156 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 259 edges. 259 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:19,249 INFO L225 Difference]: With dead ends: 1583 [2018-11-18 22:28:19,249 INFO L226 Difference]: Without dead ends: 1581 [2018-11-18 22:28:19,250 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2018-11-18 22:28:19,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2018-11-18 22:28:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 448. [2018-11-18 22:28:20,840 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:28:20,840 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1581 states. Second operand 448 states. [2018-11-18 22:28:20,840 INFO L74 IsIncluded]: Start isIncluded. First operand 1581 states. Second operand 448 states. [2018-11-18 22:28:20,841 INFO L87 Difference]: Start difference. First operand 1581 states. Second operand 448 states. [2018-11-18 22:28:20,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:20,931 INFO L93 Difference]: Finished difference Result 1581 states and 1881 transitions. [2018-11-18 22:28:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 1881 transitions. [2018-11-18 22:28:20,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:20,933 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:20,933 INFO L74 IsIncluded]: Start isIncluded. First operand 448 states. Second operand 1581 states. [2018-11-18 22:28:20,933 INFO L87 Difference]: Start difference. First operand 448 states. Second operand 1581 states. [2018-11-18 22:28:21,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:21,034 INFO L93 Difference]: Finished difference Result 1581 states and 1881 transitions. [2018-11-18 22:28:21,034 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 1881 transitions. [2018-11-18 22:28:21,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:21,036 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:21,036 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:28:21,036 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:28:21,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2018-11-18 22:28:21,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 540 transitions. [2018-11-18 22:28:21,046 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 540 transitions. Word has length 46 [2018-11-18 22:28:21,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:28:21,047 INFO L480 AbstractCegarLoop]: Abstraction has 448 states and 540 transitions. [2018-11-18 22:28:21,047 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 22:28:21,047 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 540 transitions. [2018-11-18 22:28:21,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 22:28:21,047 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:28:21,048 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:28:21,048 INFO L423 AbstractCegarLoop]: === Iteration 32 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:28:21,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:28:21,049 INFO L82 PathProgramCache]: Analyzing trace with hash -363849386, now seen corresponding path program 1 times [2018-11-18 22:28:21,049 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:28:21,049 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 33 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 33 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:28:21,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:28:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:21,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:28:21,273 INFO L256 TraceCheckUtils]: 0: Hoare triple {44233#true} call ULTIMATE.init(); {44233#true} is VALID [2018-11-18 22:28:21,273 INFO L273 TraceCheckUtils]: 1: Hoare triple {44233#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {44233#true} is VALID [2018-11-18 22:28:21,273 INFO L273 TraceCheckUtils]: 2: Hoare triple {44233#true} assume true; {44233#true} is VALID [2018-11-18 22:28:21,274 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {44233#true} {44233#true} #139#return; {44233#true} is VALID [2018-11-18 22:28:21,274 INFO L256 TraceCheckUtils]: 4: Hoare triple {44233#true} call #t~ret4 := main(); {44233#true} is VALID [2018-11-18 22:28:21,274 INFO L273 TraceCheckUtils]: 5: Hoare triple {44233#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {44233#true} is VALID [2018-11-18 22:28:21,274 INFO L273 TraceCheckUtils]: 6: Hoare triple {44233#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {44233#true} is VALID [2018-11-18 22:28:21,275 INFO L273 TraceCheckUtils]: 7: Hoare triple {44233#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,275 INFO L273 TraceCheckUtils]: 8: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,276 INFO L273 TraceCheckUtils]: 9: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,276 INFO L273 TraceCheckUtils]: 10: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,277 INFO L273 TraceCheckUtils]: 11: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,277 INFO L273 TraceCheckUtils]: 12: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,277 INFO L273 TraceCheckUtils]: 13: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,277 INFO L273 TraceCheckUtils]: 14: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,278 INFO L273 TraceCheckUtils]: 15: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,278 INFO L273 TraceCheckUtils]: 16: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,279 INFO L273 TraceCheckUtils]: 17: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {44259#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,279 INFO L273 TraceCheckUtils]: 18: Hoare triple {44259#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,280 INFO L273 TraceCheckUtils]: 19: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,280 INFO L273 TraceCheckUtils]: 20: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,281 INFO L273 TraceCheckUtils]: 21: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,281 INFO L273 TraceCheckUtils]: 22: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,282 INFO L273 TraceCheckUtils]: 23: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,282 INFO L273 TraceCheckUtils]: 24: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,283 INFO L273 TraceCheckUtils]: 25: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,283 INFO L273 TraceCheckUtils]: 26: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,284 INFO L273 TraceCheckUtils]: 27: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {44293#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,285 INFO L273 TraceCheckUtils]: 28: Hoare triple {44293#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {44324#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,285 INFO L273 TraceCheckUtils]: 29: Hoare triple {44324#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {44324#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,286 INFO L273 TraceCheckUtils]: 30: Hoare triple {44324#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {44324#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,286 INFO L273 TraceCheckUtils]: 31: Hoare triple {44324#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {44324#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,287 INFO L273 TraceCheckUtils]: 32: Hoare triple {44324#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {44337#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,287 INFO L273 TraceCheckUtils]: 33: Hoare triple {44337#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {44337#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,288 INFO L273 TraceCheckUtils]: 34: Hoare triple {44337#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,288 INFO L273 TraceCheckUtils]: 35: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,289 INFO L273 TraceCheckUtils]: 36: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,289 INFO L273 TraceCheckUtils]: 37: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,290 INFO L273 TraceCheckUtils]: 38: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,290 INFO L273 TraceCheckUtils]: 39: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,291 INFO L273 TraceCheckUtils]: 40: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,291 INFO L273 TraceCheckUtils]: 41: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,292 INFO L273 TraceCheckUtils]: 42: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {44344#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,293 INFO L273 TraceCheckUtils]: 43: Hoare triple {44344#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {44372#(= (bvadd main_~__VERIFIER_assert__cond~9 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:28:21,293 INFO L273 TraceCheckUtils]: 44: Hoare triple {44372#(= (bvadd main_~__VERIFIER_assert__cond~9 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~9; {44234#false} is VALID [2018-11-18 22:28:21,294 INFO L273 TraceCheckUtils]: 45: Hoare triple {44234#false} assume !false; {44234#false} is VALID [2018-11-18 22:28:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:21,296 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:28:21,440 INFO L273 TraceCheckUtils]: 45: Hoare triple {44234#false} assume !false; {44234#false} is VALID [2018-11-18 22:28:21,440 INFO L273 TraceCheckUtils]: 44: Hoare triple {44382#(not (= main_~__VERIFIER_assert__cond~9 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~9; {44234#false} is VALID [2018-11-18 22:28:21,441 INFO L273 TraceCheckUtils]: 43: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {44382#(not (= main_~__VERIFIER_assert__cond~9 (_ bv0 32)))} is VALID [2018-11-18 22:28:21,441 INFO L273 TraceCheckUtils]: 42: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,441 INFO L273 TraceCheckUtils]: 41: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,441 INFO L273 TraceCheckUtils]: 40: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,442 INFO L273 TraceCheckUtils]: 39: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,442 INFO L273 TraceCheckUtils]: 38: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,442 INFO L273 TraceCheckUtils]: 37: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,443 INFO L273 TraceCheckUtils]: 36: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,443 INFO L273 TraceCheckUtils]: 35: Hoare triple {44386#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,444 INFO L273 TraceCheckUtils]: 34: Hoare triple {44414#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {44386#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:21,444 INFO L273 TraceCheckUtils]: 33: Hoare triple {44414#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {44414#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:21,448 INFO L273 TraceCheckUtils]: 32: Hoare triple {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {44414#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:21,448 INFO L273 TraceCheckUtils]: 31: Hoare triple {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:21,448 INFO L273 TraceCheckUtils]: 30: Hoare triple {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:21,449 INFO L273 TraceCheckUtils]: 29: Hoare triple {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:21,451 INFO L273 TraceCheckUtils]: 28: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {44421#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:21,452 INFO L273 TraceCheckUtils]: 27: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,452 INFO L273 TraceCheckUtils]: 26: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,452 INFO L273 TraceCheckUtils]: 25: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,453 INFO L273 TraceCheckUtils]: 24: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,453 INFO L273 TraceCheckUtils]: 23: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,453 INFO L273 TraceCheckUtils]: 22: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,454 INFO L273 TraceCheckUtils]: 21: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,454 INFO L273 TraceCheckUtils]: 20: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,454 INFO L273 TraceCheckUtils]: 19: Hoare triple {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,458 INFO L273 TraceCheckUtils]: 18: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {44434#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:21,458 INFO L273 TraceCheckUtils]: 17: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,459 INFO L273 TraceCheckUtils]: 16: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,459 INFO L273 TraceCheckUtils]: 15: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,459 INFO L273 TraceCheckUtils]: 14: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,460 INFO L273 TraceCheckUtils]: 13: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,460 INFO L273 TraceCheckUtils]: 12: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,460 INFO L273 TraceCheckUtils]: 11: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,460 INFO L273 TraceCheckUtils]: 10: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,461 INFO L273 TraceCheckUtils]: 9: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,461 INFO L273 TraceCheckUtils]: 8: Hoare triple {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,461 INFO L273 TraceCheckUtils]: 7: Hoare triple {44233#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {44465#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:21,462 INFO L273 TraceCheckUtils]: 6: Hoare triple {44233#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {44233#true} is VALID [2018-11-18 22:28:21,462 INFO L273 TraceCheckUtils]: 5: Hoare triple {44233#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {44233#true} is VALID [2018-11-18 22:28:21,462 INFO L256 TraceCheckUtils]: 4: Hoare triple {44233#true} call #t~ret4 := main(); {44233#true} is VALID [2018-11-18 22:28:21,462 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {44233#true} {44233#true} #139#return; {44233#true} is VALID [2018-11-18 22:28:21,462 INFO L273 TraceCheckUtils]: 2: Hoare triple {44233#true} assume true; {44233#true} is VALID [2018-11-18 22:28:21,462 INFO L273 TraceCheckUtils]: 1: Hoare triple {44233#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {44233#true} is VALID [2018-11-18 22:28:21,462 INFO L256 TraceCheckUtils]: 0: Hoare triple {44233#true} call ULTIMATE.init(); {44233#true} is VALID [2018-11-18 22:28:21,466 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:21,474 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:28:21,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-18 22:28:21,474 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 46 [2018-11-18 22:28:21,475 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:28:21,475 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-18 22:28:21,601 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 84 edges. 84 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:21,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 22:28:21,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 22:28:21,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-18 22:28:21,602 INFO L87 Difference]: Start difference. First operand 448 states and 540 transitions. Second operand 14 states. [2018-11-18 22:28:29,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:29,699 INFO L93 Difference]: Finished difference Result 1007 states and 1166 transitions. [2018-11-18 22:28:29,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-11-18 22:28:29,699 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 46 [2018-11-18 22:28:29,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:28:29,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:29,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 671 transitions. [2018-11-18 22:28:29,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:29,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 671 transitions. [2018-11-18 22:28:29,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 34 states and 671 transitions. [2018-11-18 22:28:30,859 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 671 edges. 671 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:30,900 INFO L225 Difference]: With dead ends: 1007 [2018-11-18 22:28:30,901 INFO L226 Difference]: Without dead ends: 1005 [2018-11-18 22:28:30,901 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=434, Invalid=972, Unknown=0, NotChecked=0, Total=1406 [2018-11-18 22:28:30,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1005 states. [2018-11-18 22:28:31,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1005 to 362. [2018-11-18 22:28:31,663 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:28:31,663 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1005 states. Second operand 362 states. [2018-11-18 22:28:31,663 INFO L74 IsIncluded]: Start isIncluded. First operand 1005 states. Second operand 362 states. [2018-11-18 22:28:31,664 INFO L87 Difference]: Start difference. First operand 1005 states. Second operand 362 states. [2018-11-18 22:28:31,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:31,702 INFO L93 Difference]: Finished difference Result 1005 states and 1157 transitions. [2018-11-18 22:28:31,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1157 transitions. [2018-11-18 22:28:31,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:31,703 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:31,703 INFO L74 IsIncluded]: Start isIncluded. First operand 362 states. Second operand 1005 states. [2018-11-18 22:28:31,703 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 1005 states. [2018-11-18 22:28:31,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:31,737 INFO L93 Difference]: Finished difference Result 1005 states and 1157 transitions. [2018-11-18 22:28:31,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1157 transitions. [2018-11-18 22:28:31,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:31,738 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:31,738 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:28:31,738 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:28:31,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2018-11-18 22:28:31,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 427 transitions. [2018-11-18 22:28:31,744 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 427 transitions. Word has length 46 [2018-11-18 22:28:31,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:28:31,744 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 427 transitions. [2018-11-18 22:28:31,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 22:28:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 427 transitions. [2018-11-18 22:28:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-18 22:28:31,745 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:28:31,745 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:28:31,745 INFO L423 AbstractCegarLoop]: === Iteration 33 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:28:31,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:28:31,745 INFO L82 PathProgramCache]: Analyzing trace with hash 839049497, now seen corresponding path program 1 times [2018-11-18 22:28:31,746 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:28:31,746 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 34 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 34 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:28:31,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:28:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:31,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:31,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:28:31,982 INFO L256 TraceCheckUtils]: 0: Hoare triple {48188#true} call ULTIMATE.init(); {48188#true} is VALID [2018-11-18 22:28:31,982 INFO L273 TraceCheckUtils]: 1: Hoare triple {48188#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {48188#true} is VALID [2018-11-18 22:28:31,982 INFO L273 TraceCheckUtils]: 2: Hoare triple {48188#true} assume true; {48188#true} is VALID [2018-11-18 22:28:31,982 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {48188#true} {48188#true} #139#return; {48188#true} is VALID [2018-11-18 22:28:31,982 INFO L256 TraceCheckUtils]: 4: Hoare triple {48188#true} call #t~ret4 := main(); {48188#true} is VALID [2018-11-18 22:28:31,982 INFO L273 TraceCheckUtils]: 5: Hoare triple {48188#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {48188#true} is VALID [2018-11-18 22:28:31,983 INFO L273 TraceCheckUtils]: 6: Hoare triple {48188#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,983 INFO L273 TraceCheckUtils]: 7: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,983 INFO L273 TraceCheckUtils]: 8: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,984 INFO L273 TraceCheckUtils]: 9: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,984 INFO L273 TraceCheckUtils]: 10: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,984 INFO L273 TraceCheckUtils]: 11: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,985 INFO L273 TraceCheckUtils]: 12: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,985 INFO L273 TraceCheckUtils]: 13: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,985 INFO L273 TraceCheckUtils]: 14: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,986 INFO L273 TraceCheckUtils]: 15: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,986 INFO L273 TraceCheckUtils]: 16: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {48211#(= (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,989 INFO L273 TraceCheckUtils]: 17: Hoare triple {48211#(= (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {48245#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,990 INFO L273 TraceCheckUtils]: 18: Hoare triple {48245#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {48245#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,990 INFO L273 TraceCheckUtils]: 19: Hoare triple {48245#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {48245#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,991 INFO L273 TraceCheckUtils]: 20: Hoare triple {48245#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {48245#(= (_ bv1 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,991 INFO L273 TraceCheckUtils]: 21: Hoare triple {48245#(= (_ bv1 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,992 INFO L273 TraceCheckUtils]: 22: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,992 INFO L273 TraceCheckUtils]: 23: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,992 INFO L273 TraceCheckUtils]: 24: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,993 INFO L273 TraceCheckUtils]: 25: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,993 INFO L273 TraceCheckUtils]: 26: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,993 INFO L273 TraceCheckUtils]: 27: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,994 INFO L273 TraceCheckUtils]: 28: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,994 INFO L273 TraceCheckUtils]: 29: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,995 INFO L273 TraceCheckUtils]: 30: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,995 INFO L273 TraceCheckUtils]: 31: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,996 INFO L273 TraceCheckUtils]: 32: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {48258#(= (_ bv2 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,996 INFO L273 TraceCheckUtils]: 33: Hoare triple {48258#(= (_ bv2 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {48295#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,997 INFO L273 TraceCheckUtils]: 34: Hoare triple {48295#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {48295#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,997 INFO L273 TraceCheckUtils]: 35: Hoare triple {48295#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {48295#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,998 INFO L273 TraceCheckUtils]: 36: Hoare triple {48295#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {48295#(= (_ bv3 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,999 INFO L273 TraceCheckUtils]: 37: Hoare triple {48295#(= (_ bv3 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {48308#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:31,999 INFO L273 TraceCheckUtils]: 38: Hoare triple {48308#(= (_ bv4 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {48308#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,000 INFO L273 TraceCheckUtils]: 39: Hoare triple {48308#(= (_ bv4 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {48308#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,000 INFO L273 TraceCheckUtils]: 40: Hoare triple {48308#(= (_ bv4 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {48308#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,001 INFO L273 TraceCheckUtils]: 41: Hoare triple {48308#(= (_ bv4 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {48308#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,001 INFO L273 TraceCheckUtils]: 42: Hoare triple {48308#(= (_ bv4 32) main_~main__i~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {48308#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,002 INFO L273 TraceCheckUtils]: 43: Hoare triple {48308#(= (_ bv4 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {48308#(= (_ bv4 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,002 INFO L273 TraceCheckUtils]: 44: Hoare triple {48308#(= (_ bv4 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {48330#(= (_ bv1 32) main_~__VERIFIER_assert__cond~3)} is VALID [2018-11-18 22:28:32,003 INFO L273 TraceCheckUtils]: 45: Hoare triple {48330#(= (_ bv1 32) main_~__VERIFIER_assert__cond~3)} assume 0bv32 == ~__VERIFIER_assert__cond~3; {48189#false} is VALID [2018-11-18 22:28:32,003 INFO L273 TraceCheckUtils]: 46: Hoare triple {48189#false} assume !false; {48189#false} is VALID [2018-11-18 22:28:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:32,006 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:28:32,192 INFO L273 TraceCheckUtils]: 46: Hoare triple {48189#false} assume !false; {48189#false} is VALID [2018-11-18 22:28:32,193 INFO L273 TraceCheckUtils]: 45: Hoare triple {48340#(not (= main_~__VERIFIER_assert__cond~3 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~3; {48189#false} is VALID [2018-11-18 22:28:32,194 INFO L273 TraceCheckUtils]: 44: Hoare triple {48344#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {48340#(not (= main_~__VERIFIER_assert__cond~3 (_ bv0 32)))} is VALID [2018-11-18 22:28:32,194 INFO L273 TraceCheckUtils]: 43: Hoare triple {48344#(bvsle (_ bv0 32) main_~main__i~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {48344#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,195 INFO L273 TraceCheckUtils]: 42: Hoare triple {48344#(bvsle (_ bv0 32) main_~main__i~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {48344#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,195 INFO L273 TraceCheckUtils]: 41: Hoare triple {48344#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {48344#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,196 INFO L273 TraceCheckUtils]: 40: Hoare triple {48344#(bvsle (_ bv0 32) main_~main__i~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {48344#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,196 INFO L273 TraceCheckUtils]: 39: Hoare triple {48344#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {48344#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,197 INFO L273 TraceCheckUtils]: 38: Hoare triple {48344#(bvsle (_ bv0 32) main_~main__i~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {48344#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,199 INFO L273 TraceCheckUtils]: 37: Hoare triple {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {48344#(bvsle (_ bv0 32) main_~main__i~0)} is VALID [2018-11-18 22:28:32,200 INFO L273 TraceCheckUtils]: 36: Hoare triple {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:32,200 INFO L273 TraceCheckUtils]: 35: Hoare triple {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:32,201 INFO L273 TraceCheckUtils]: 34: Hoare triple {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:32,204 INFO L273 TraceCheckUtils]: 33: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {48366#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:32,204 INFO L273 TraceCheckUtils]: 32: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,205 INFO L273 TraceCheckUtils]: 31: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,205 INFO L273 TraceCheckUtils]: 30: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,205 INFO L273 TraceCheckUtils]: 29: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,206 INFO L273 TraceCheckUtils]: 28: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,206 INFO L273 TraceCheckUtils]: 27: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,224 INFO L273 TraceCheckUtils]: 26: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,232 INFO L273 TraceCheckUtils]: 25: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,235 INFO L273 TraceCheckUtils]: 24: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,235 INFO L273 TraceCheckUtils]: 23: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,235 INFO L273 TraceCheckUtils]: 22: Hoare triple {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,239 INFO L273 TraceCheckUtils]: 21: Hoare triple {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {48379#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:32,239 INFO L273 TraceCheckUtils]: 20: Hoare triple {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:32,239 INFO L273 TraceCheckUtils]: 19: Hoare triple {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:32,240 INFO L273 TraceCheckUtils]: 18: Hoare triple {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:32,243 INFO L273 TraceCheckUtils]: 17: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {48416#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:32,243 INFO L273 TraceCheckUtils]: 16: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,244 INFO L273 TraceCheckUtils]: 15: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,244 INFO L273 TraceCheckUtils]: 14: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,245 INFO L273 TraceCheckUtils]: 13: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,245 INFO L273 TraceCheckUtils]: 12: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,256 INFO L273 TraceCheckUtils]: 11: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,266 INFO L273 TraceCheckUtils]: 10: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,266 INFO L273 TraceCheckUtils]: 9: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,267 INFO L273 TraceCheckUtils]: 8: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,267 INFO L273 TraceCheckUtils]: 7: Hoare triple {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,267 INFO L273 TraceCheckUtils]: 6: Hoare triple {48188#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {48429#(bvsle (_ bv0 32) (bvadd main_~main__i~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:32,267 INFO L273 TraceCheckUtils]: 5: Hoare triple {48188#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {48188#true} is VALID [2018-11-18 22:28:32,268 INFO L256 TraceCheckUtils]: 4: Hoare triple {48188#true} call #t~ret4 := main(); {48188#true} is VALID [2018-11-18 22:28:32,268 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {48188#true} {48188#true} #139#return; {48188#true} is VALID [2018-11-18 22:28:32,268 INFO L273 TraceCheckUtils]: 2: Hoare triple {48188#true} assume true; {48188#true} is VALID [2018-11-18 22:28:32,268 INFO L273 TraceCheckUtils]: 1: Hoare triple {48188#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {48188#true} is VALID [2018-11-18 22:28:32,268 INFO L256 TraceCheckUtils]: 0: Hoare triple {48188#true} call ULTIMATE.init(); {48188#true} is VALID [2018-11-18 22:28:32,270 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:32,272 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:28:32,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2018-11-18 22:28:32,272 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 47 [2018-11-18 22:28:32,273 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:28:32,273 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2018-11-18 22:28:32,424 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 87 edges. 87 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:32,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-18 22:28:32,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-18 22:28:32,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-11-18 22:28:32,425 INFO L87 Difference]: Start difference. First operand 362 states and 427 transitions. Second operand 14 states. [2018-11-18 22:28:40,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:40,525 INFO L93 Difference]: Finished difference Result 1619 states and 1905 transitions. [2018-11-18 22:28:40,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-11-18 22:28:40,525 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 47 [2018-11-18 22:28:40,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:28:40,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:40,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 342 transitions. [2018-11-18 22:28:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 22:28:40,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 342 transitions. [2018-11-18 22:28:40,528 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states and 342 transitions. [2018-11-18 22:28:41,203 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 342 edges. 342 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:41,316 INFO L225 Difference]: With dead ends: 1619 [2018-11-18 22:28:41,316 INFO L226 Difference]: Without dead ends: 1596 [2018-11-18 22:28:41,317 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=249, Invalid=507, Unknown=0, NotChecked=0, Total=756 [2018-11-18 22:28:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2018-11-18 22:28:42,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 225. [2018-11-18 22:28:42,044 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:28:42,044 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1596 states. Second operand 225 states. [2018-11-18 22:28:42,044 INFO L74 IsIncluded]: Start isIncluded. First operand 1596 states. Second operand 225 states. [2018-11-18 22:28:42,044 INFO L87 Difference]: Start difference. First operand 1596 states. Second operand 225 states. [2018-11-18 22:28:42,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:42,126 INFO L93 Difference]: Finished difference Result 1596 states and 1799 transitions. [2018-11-18 22:28:42,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 1799 transitions. [2018-11-18 22:28:42,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:42,127 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:42,127 INFO L74 IsIncluded]: Start isIncluded. First operand 225 states. Second operand 1596 states. [2018-11-18 22:28:42,127 INFO L87 Difference]: Start difference. First operand 225 states. Second operand 1596 states. [2018-11-18 22:28:42,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:42,213 INFO L93 Difference]: Finished difference Result 1596 states and 1799 transitions. [2018-11-18 22:28:42,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1596 states and 1799 transitions. [2018-11-18 22:28:42,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:28:42,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:28:42,215 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:28:42,215 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:28:42,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-11-18 22:28:42,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 250 transitions. [2018-11-18 22:28:42,218 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 250 transitions. Word has length 47 [2018-11-18 22:28:42,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:28:42,218 INFO L480 AbstractCegarLoop]: Abstraction has 225 states and 250 transitions. [2018-11-18 22:28:42,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-18 22:28:42,218 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 250 transitions. [2018-11-18 22:28:42,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-11-18 22:28:42,219 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:28:42,219 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:28:42,219 INFO L423 AbstractCegarLoop]: === Iteration 34 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:28:42,219 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:28:42,220 INFO L82 PathProgramCache]: Analyzing trace with hash -224849465, now seen corresponding path program 1 times [2018-11-18 22:28:42,220 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:28:42,220 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 35 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 35 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:28:42,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:28:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:28:42,397 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:28:42,553 INFO L256 TraceCheckUtils]: 0: Hoare triple {53822#true} call ULTIMATE.init(); {53822#true} is VALID [2018-11-18 22:28:42,553 INFO L273 TraceCheckUtils]: 1: Hoare triple {53822#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {53822#true} is VALID [2018-11-18 22:28:42,554 INFO L273 TraceCheckUtils]: 2: Hoare triple {53822#true} assume true; {53822#true} is VALID [2018-11-18 22:28:42,554 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {53822#true} {53822#true} #139#return; {53822#true} is VALID [2018-11-18 22:28:42,554 INFO L256 TraceCheckUtils]: 4: Hoare triple {53822#true} call #t~ret4 := main(); {53822#true} is VALID [2018-11-18 22:28:42,554 INFO L273 TraceCheckUtils]: 5: Hoare triple {53822#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {53822#true} is VALID [2018-11-18 22:28:42,554 INFO L273 TraceCheckUtils]: 6: Hoare triple {53822#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {53822#true} is VALID [2018-11-18 22:28:42,555 INFO L273 TraceCheckUtils]: 7: Hoare triple {53822#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,555 INFO L273 TraceCheckUtils]: 8: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,555 INFO L273 TraceCheckUtils]: 9: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,556 INFO L273 TraceCheckUtils]: 10: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,556 INFO L273 TraceCheckUtils]: 11: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,556 INFO L273 TraceCheckUtils]: 12: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,557 INFO L273 TraceCheckUtils]: 13: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,557 INFO L273 TraceCheckUtils]: 14: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,557 INFO L273 TraceCheckUtils]: 15: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,558 INFO L273 TraceCheckUtils]: 16: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {53848#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,558 INFO L273 TraceCheckUtils]: 17: Hoare triple {53848#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {53879#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,558 INFO L273 TraceCheckUtils]: 18: Hoare triple {53879#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {53879#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,559 INFO L273 TraceCheckUtils]: 19: Hoare triple {53879#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {53879#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,559 INFO L273 TraceCheckUtils]: 20: Hoare triple {53879#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {53879#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,560 INFO L273 TraceCheckUtils]: 21: Hoare triple {53879#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {53892#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,560 INFO L273 TraceCheckUtils]: 22: Hoare triple {53892#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {53892#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,561 INFO L273 TraceCheckUtils]: 23: Hoare triple {53892#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,561 INFO L273 TraceCheckUtils]: 24: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,562 INFO L273 TraceCheckUtils]: 25: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,562 INFO L273 TraceCheckUtils]: 26: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,563 INFO L273 TraceCheckUtils]: 27: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,563 INFO L273 TraceCheckUtils]: 28: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,564 INFO L273 TraceCheckUtils]: 29: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,564 INFO L273 TraceCheckUtils]: 30: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,564 INFO L273 TraceCheckUtils]: 31: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,565 INFO L273 TraceCheckUtils]: 32: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {53899#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,566 INFO L273 TraceCheckUtils]: 33: Hoare triple {53899#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {53930#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,566 INFO L273 TraceCheckUtils]: 34: Hoare triple {53930#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {53930#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,567 INFO L273 TraceCheckUtils]: 35: Hoare triple {53930#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {53930#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,567 INFO L273 TraceCheckUtils]: 36: Hoare triple {53930#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {53930#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,568 INFO L273 TraceCheckUtils]: 37: Hoare triple {53930#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {53943#(= (_ bv5 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,568 INFO L273 TraceCheckUtils]: 38: Hoare triple {53943#(= (_ bv5 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {53943#(= (_ bv5 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,569 INFO L273 TraceCheckUtils]: 39: Hoare triple {53943#(= (_ bv5 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,570 INFO L273 TraceCheckUtils]: 40: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,570 INFO L273 TraceCheckUtils]: 41: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,571 INFO L273 TraceCheckUtils]: 42: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,571 INFO L273 TraceCheckUtils]: 43: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,571 INFO L273 TraceCheckUtils]: 44: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,572 INFO L273 TraceCheckUtils]: 45: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,572 INFO L273 TraceCheckUtils]: 46: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,573 INFO L273 TraceCheckUtils]: 47: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,573 INFO L273 TraceCheckUtils]: 48: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {53950#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,574 INFO L273 TraceCheckUtils]: 49: Hoare triple {53950#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {53981#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,575 INFO L273 TraceCheckUtils]: 50: Hoare triple {53981#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {53981#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,575 INFO L273 TraceCheckUtils]: 51: Hoare triple {53981#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {53981#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,576 INFO L273 TraceCheckUtils]: 52: Hoare triple {53981#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {53991#(= (bvadd main_~__VERIFIER_assert__cond~13 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:28:42,576 INFO L273 TraceCheckUtils]: 53: Hoare triple {53991#(= (bvadd main_~__VERIFIER_assert__cond~13 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~13; {53823#false} is VALID [2018-11-18 22:28:42,577 INFO L273 TraceCheckUtils]: 54: Hoare triple {53823#false} assume !false; {53823#false} is VALID [2018-11-18 22:28:42,580 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:42,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:28:42,827 INFO L273 TraceCheckUtils]: 54: Hoare triple {53823#false} assume !false; {53823#false} is VALID [2018-11-18 22:28:42,828 INFO L273 TraceCheckUtils]: 53: Hoare triple {54001#(not (= main_~__VERIFIER_assert__cond~13 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~13; {53823#false} is VALID [2018-11-18 22:28:42,829 INFO L273 TraceCheckUtils]: 52: Hoare triple {54005#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {54001#(not (= main_~__VERIFIER_assert__cond~13 (_ bv0 32)))} is VALID [2018-11-18 22:28:42,829 INFO L273 TraceCheckUtils]: 51: Hoare triple {54005#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {54005#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,830 INFO L273 TraceCheckUtils]: 50: Hoare triple {54005#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {54005#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,830 INFO L273 TraceCheckUtils]: 49: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {54005#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:28:42,831 INFO L273 TraceCheckUtils]: 48: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,831 INFO L273 TraceCheckUtils]: 47: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,832 INFO L273 TraceCheckUtils]: 46: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,832 INFO L273 TraceCheckUtils]: 45: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,833 INFO L273 TraceCheckUtils]: 44: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,833 INFO L273 TraceCheckUtils]: 43: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,834 INFO L273 TraceCheckUtils]: 42: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,834 INFO L273 TraceCheckUtils]: 41: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,835 INFO L273 TraceCheckUtils]: 40: Hoare triple {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,838 INFO L273 TraceCheckUtils]: 39: Hoare triple {54046#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {54015#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:28:42,838 INFO L273 TraceCheckUtils]: 38: Hoare triple {54046#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {54046#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:42,841 INFO L273 TraceCheckUtils]: 37: Hoare triple {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {54046#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:28:42,842 INFO L273 TraceCheckUtils]: 36: Hoare triple {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:42,842 INFO L273 TraceCheckUtils]: 35: Hoare triple {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:42,842 INFO L273 TraceCheckUtils]: 34: Hoare triple {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:42,845 INFO L273 TraceCheckUtils]: 33: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {54053#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:28:42,845 INFO L273 TraceCheckUtils]: 32: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,846 INFO L273 TraceCheckUtils]: 31: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,846 INFO L273 TraceCheckUtils]: 30: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,846 INFO L273 TraceCheckUtils]: 29: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,846 INFO L273 TraceCheckUtils]: 28: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,847 INFO L273 TraceCheckUtils]: 27: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,847 INFO L273 TraceCheckUtils]: 26: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,847 INFO L273 TraceCheckUtils]: 25: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,848 INFO L273 TraceCheckUtils]: 24: Hoare triple {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,851 INFO L273 TraceCheckUtils]: 23: Hoare triple {54097#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {54066#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:28:42,851 INFO L273 TraceCheckUtils]: 22: Hoare triple {54097#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {54097#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:28:42,854 INFO L273 TraceCheckUtils]: 21: Hoare triple {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {54097#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:28:42,855 INFO L273 TraceCheckUtils]: 20: Hoare triple {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:28:42,855 INFO L273 TraceCheckUtils]: 19: Hoare triple {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:28:42,855 INFO L273 TraceCheckUtils]: 18: Hoare triple {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:28:42,858 INFO L273 TraceCheckUtils]: 17: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {54104#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:28:42,858 INFO L273 TraceCheckUtils]: 16: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,858 INFO L273 TraceCheckUtils]: 15: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,859 INFO L273 TraceCheckUtils]: 14: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,859 INFO L273 TraceCheckUtils]: 13: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,859 INFO L273 TraceCheckUtils]: 12: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,860 INFO L273 TraceCheckUtils]: 11: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,860 INFO L273 TraceCheckUtils]: 10: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,860 INFO L273 TraceCheckUtils]: 9: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,861 INFO L273 TraceCheckUtils]: 8: Hoare triple {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,861 INFO L273 TraceCheckUtils]: 7: Hoare triple {53822#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {54117#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:28:42,861 INFO L273 TraceCheckUtils]: 6: Hoare triple {53822#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {53822#true} is VALID [2018-11-18 22:28:42,861 INFO L273 TraceCheckUtils]: 5: Hoare triple {53822#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {53822#true} is VALID [2018-11-18 22:28:42,862 INFO L256 TraceCheckUtils]: 4: Hoare triple {53822#true} call #t~ret4 := main(); {53822#true} is VALID [2018-11-18 22:28:42,862 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {53822#true} {53822#true} #139#return; {53822#true} is VALID [2018-11-18 22:28:42,862 INFO L273 TraceCheckUtils]: 2: Hoare triple {53822#true} assume true; {53822#true} is VALID [2018-11-18 22:28:42,862 INFO L273 TraceCheckUtils]: 1: Hoare triple {53822#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {53822#true} is VALID [2018-11-18 22:28:42,862 INFO L256 TraceCheckUtils]: 0: Hoare triple {53822#true} call ULTIMATE.init(); {53822#true} is VALID [2018-11-18 22:28:42,866 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:28:42,868 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:28:42,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2018-11-18 22:28:42,869 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 55 [2018-11-18 22:28:42,869 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:28:42,869 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states. [2018-11-18 22:28:43,024 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 102 edges. 102 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:28:43,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-18 22:28:43,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 22:28:43,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2018-11-18 22:28:43,025 INFO L87 Difference]: Start difference. First operand 225 states and 250 transitions. Second operand 20 states. [2018-11-18 22:28:58,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:28:58,624 INFO L93 Difference]: Finished difference Result 1301 states and 1443 transitions. [2018-11-18 22:28:58,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-11-18 22:28:58,624 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 55 [2018-11-18 22:28:58,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:28:58,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 22:28:58,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 1122 transitions. [2018-11-18 22:28:58,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 22:28:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 1122 transitions. [2018-11-18 22:28:58,636 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 52 states and 1122 transitions. [2018-11-18 22:29:00,487 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1122 edges. 1122 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:29:00,549 INFO L225 Difference]: With dead ends: 1301 [2018-11-18 22:29:00,549 INFO L226 Difference]: Without dead ends: 1299 [2018-11-18 22:29:00,550 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 770 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1016, Invalid=2406, Unknown=0, NotChecked=0, Total=3422 [2018-11-18 22:29:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2018-11-18 22:29:01,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 359. [2018-11-18 22:29:01,773 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:29:01,773 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1299 states. Second operand 359 states. [2018-11-18 22:29:01,774 INFO L74 IsIncluded]: Start isIncluded. First operand 1299 states. Second operand 359 states. [2018-11-18 22:29:01,774 INFO L87 Difference]: Start difference. First operand 1299 states. Second operand 359 states. [2018-11-18 22:29:01,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:29:01,829 INFO L93 Difference]: Finished difference Result 1299 states and 1433 transitions. [2018-11-18 22:29:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1433 transitions. [2018-11-18 22:29:01,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:29:01,831 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:29:01,831 INFO L74 IsIncluded]: Start isIncluded. First operand 359 states. Second operand 1299 states. [2018-11-18 22:29:01,831 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 1299 states. [2018-11-18 22:29:01,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:29:01,883 INFO L93 Difference]: Finished difference Result 1299 states and 1433 transitions. [2018-11-18 22:29:01,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1299 states and 1433 transitions. [2018-11-18 22:29:01,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:29:01,884 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:29:01,884 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:29:01,884 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:29:01,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2018-11-18 22:29:01,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 412 transitions. [2018-11-18 22:29:01,889 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 412 transitions. Word has length 55 [2018-11-18 22:29:01,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:29:01,890 INFO L480 AbstractCegarLoop]: Abstraction has 359 states and 412 transitions. [2018-11-18 22:29:01,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-18 22:29:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 412 transitions. [2018-11-18 22:29:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-18 22:29:01,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:29:01,890 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:29:01,891 INFO L423 AbstractCegarLoop]: === Iteration 35 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:29:01,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:29:01,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1331870035, now seen corresponding path program 1 times [2018-11-18 22:29:01,891 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:29:01,891 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 36 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 36 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:29:01,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 22:29:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:29:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:29:02,072 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:29:02,226 INFO L256 TraceCheckUtils]: 0: Hoare triple {58743#true} call ULTIMATE.init(); {58743#true} is VALID [2018-11-18 22:29:02,226 INFO L273 TraceCheckUtils]: 1: Hoare triple {58743#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {58743#true} is VALID [2018-11-18 22:29:02,227 INFO L273 TraceCheckUtils]: 2: Hoare triple {58743#true} assume true; {58743#true} is VALID [2018-11-18 22:29:02,227 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {58743#true} {58743#true} #139#return; {58743#true} is VALID [2018-11-18 22:29:02,227 INFO L256 TraceCheckUtils]: 4: Hoare triple {58743#true} call #t~ret4 := main(); {58743#true} is VALID [2018-11-18 22:29:02,227 INFO L273 TraceCheckUtils]: 5: Hoare triple {58743#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {58743#true} is VALID [2018-11-18 22:29:02,227 INFO L273 TraceCheckUtils]: 6: Hoare triple {58743#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {58743#true} is VALID [2018-11-18 22:29:02,228 INFO L273 TraceCheckUtils]: 7: Hoare triple {58743#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,228 INFO L273 TraceCheckUtils]: 8: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,229 INFO L273 TraceCheckUtils]: 9: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,229 INFO L273 TraceCheckUtils]: 10: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,229 INFO L273 TraceCheckUtils]: 11: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,230 INFO L273 TraceCheckUtils]: 12: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,230 INFO L273 TraceCheckUtils]: 13: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,230 INFO L273 TraceCheckUtils]: 14: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,231 INFO L273 TraceCheckUtils]: 15: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,231 INFO L273 TraceCheckUtils]: 16: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {58769#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,232 INFO L273 TraceCheckUtils]: 17: Hoare triple {58769#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {58800#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,232 INFO L273 TraceCheckUtils]: 18: Hoare triple {58800#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {58800#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,233 INFO L273 TraceCheckUtils]: 19: Hoare triple {58800#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {58800#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,233 INFO L273 TraceCheckUtils]: 20: Hoare triple {58800#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {58800#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,234 INFO L273 TraceCheckUtils]: 21: Hoare triple {58800#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {58813#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,235 INFO L273 TraceCheckUtils]: 22: Hoare triple {58813#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {58813#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,235 INFO L273 TraceCheckUtils]: 23: Hoare triple {58813#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,236 INFO L273 TraceCheckUtils]: 24: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,236 INFO L273 TraceCheckUtils]: 25: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,237 INFO L273 TraceCheckUtils]: 26: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,237 INFO L273 TraceCheckUtils]: 27: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,238 INFO L273 TraceCheckUtils]: 28: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,238 INFO L273 TraceCheckUtils]: 29: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,239 INFO L273 TraceCheckUtils]: 30: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,239 INFO L273 TraceCheckUtils]: 31: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,240 INFO L273 TraceCheckUtils]: 32: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {58820#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,240 INFO L273 TraceCheckUtils]: 33: Hoare triple {58820#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {58851#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,241 INFO L273 TraceCheckUtils]: 34: Hoare triple {58851#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {58851#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,241 INFO L273 TraceCheckUtils]: 35: Hoare triple {58851#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {58851#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,242 INFO L273 TraceCheckUtils]: 36: Hoare triple {58851#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {58851#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,243 INFO L273 TraceCheckUtils]: 37: Hoare triple {58851#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {58864#(= (_ bv5 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,243 INFO L273 TraceCheckUtils]: 38: Hoare triple {58864#(= (_ bv5 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {58864#(= (_ bv5 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,244 INFO L273 TraceCheckUtils]: 39: Hoare triple {58864#(= (_ bv5 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,244 INFO L273 TraceCheckUtils]: 40: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,245 INFO L273 TraceCheckUtils]: 41: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,245 INFO L273 TraceCheckUtils]: 42: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,246 INFO L273 TraceCheckUtils]: 43: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,246 INFO L273 TraceCheckUtils]: 44: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,247 INFO L273 TraceCheckUtils]: 45: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,247 INFO L273 TraceCheckUtils]: 46: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,248 INFO L273 TraceCheckUtils]: 47: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,248 INFO L273 TraceCheckUtils]: 48: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {58871#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,249 INFO L273 TraceCheckUtils]: 49: Hoare triple {58871#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {58902#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,249 INFO L273 TraceCheckUtils]: 50: Hoare triple {58902#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {58902#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,250 INFO L273 TraceCheckUtils]: 51: Hoare triple {58902#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {58902#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,250 INFO L273 TraceCheckUtils]: 52: Hoare triple {58902#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {58902#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,251 INFO L273 TraceCheckUtils]: 53: Hoare triple {58902#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {58915#(= (_ bv8 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,252 INFO L273 TraceCheckUtils]: 54: Hoare triple {58915#(= (_ bv8 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {58919#(= (bvadd main_~__VERIFIER_assert__cond~15 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:29:02,253 INFO L273 TraceCheckUtils]: 55: Hoare triple {58919#(= (bvadd main_~__VERIFIER_assert__cond~15 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~15; {58744#false} is VALID [2018-11-18 22:29:02,253 INFO L273 TraceCheckUtils]: 56: Hoare triple {58744#false} assume !false; {58744#false} is VALID [2018-11-18 22:29:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:29:02,256 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:29:02,662 INFO L273 TraceCheckUtils]: 56: Hoare triple {58744#false} assume !false; {58744#false} is VALID [2018-11-18 22:29:02,663 INFO L273 TraceCheckUtils]: 55: Hoare triple {58929#(not (= main_~__VERIFIER_assert__cond~15 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~15; {58744#false} is VALID [2018-11-18 22:29:02,664 INFO L273 TraceCheckUtils]: 54: Hoare triple {58933#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {58929#(not (= main_~__VERIFIER_assert__cond~15 (_ bv0 32)))} is VALID [2018-11-18 22:29:02,665 INFO L273 TraceCheckUtils]: 53: Hoare triple {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {58933#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:02,665 INFO L273 TraceCheckUtils]: 52: Hoare triple {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:29:02,666 INFO L273 TraceCheckUtils]: 51: Hoare triple {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:29:02,666 INFO L273 TraceCheckUtils]: 50: Hoare triple {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:29:02,670 INFO L273 TraceCheckUtils]: 49: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {58937#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:29:02,671 INFO L273 TraceCheckUtils]: 48: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,671 INFO L273 TraceCheckUtils]: 47: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,672 INFO L273 TraceCheckUtils]: 46: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,672 INFO L273 TraceCheckUtils]: 45: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,672 INFO L273 TraceCheckUtils]: 44: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,673 INFO L273 TraceCheckUtils]: 43: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,673 INFO L273 TraceCheckUtils]: 42: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,673 INFO L273 TraceCheckUtils]: 41: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,673 INFO L273 TraceCheckUtils]: 40: Hoare triple {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,677 INFO L273 TraceCheckUtils]: 39: Hoare triple {58981#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {58950#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:02,677 INFO L273 TraceCheckUtils]: 38: Hoare triple {58981#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {58981#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:02,681 INFO L273 TraceCheckUtils]: 37: Hoare triple {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {58981#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:02,681 INFO L273 TraceCheckUtils]: 36: Hoare triple {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:02,681 INFO L273 TraceCheckUtils]: 35: Hoare triple {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:02,682 INFO L273 TraceCheckUtils]: 34: Hoare triple {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:02,684 INFO L273 TraceCheckUtils]: 33: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {58988#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:02,685 INFO L273 TraceCheckUtils]: 32: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,685 INFO L273 TraceCheckUtils]: 31: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,685 INFO L273 TraceCheckUtils]: 30: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,685 INFO L273 TraceCheckUtils]: 29: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,686 INFO L273 TraceCheckUtils]: 28: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,686 INFO L273 TraceCheckUtils]: 27: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,686 INFO L273 TraceCheckUtils]: 26: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,698 INFO L273 TraceCheckUtils]: 25: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,699 INFO L273 TraceCheckUtils]: 24: Hoare triple {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,701 INFO L273 TraceCheckUtils]: 23: Hoare triple {59032#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {59001#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:02,702 INFO L273 TraceCheckUtils]: 22: Hoare triple {59032#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {59032#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:29:02,705 INFO L273 TraceCheckUtils]: 21: Hoare triple {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {59032#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:29:02,706 INFO L273 TraceCheckUtils]: 20: Hoare triple {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:02,706 INFO L273 TraceCheckUtils]: 19: Hoare triple {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:02,706 INFO L273 TraceCheckUtils]: 18: Hoare triple {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:02,709 INFO L273 TraceCheckUtils]: 17: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {59039#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:02,709 INFO L273 TraceCheckUtils]: 16: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,709 INFO L273 TraceCheckUtils]: 15: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,710 INFO L273 TraceCheckUtils]: 14: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,710 INFO L273 TraceCheckUtils]: 13: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,710 INFO L273 TraceCheckUtils]: 12: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,710 INFO L273 TraceCheckUtils]: 11: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,711 INFO L273 TraceCheckUtils]: 10: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,711 INFO L273 TraceCheckUtils]: 9: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,711 INFO L273 TraceCheckUtils]: 8: Hoare triple {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,712 INFO L273 TraceCheckUtils]: 7: Hoare triple {58743#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {59052#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:02,712 INFO L273 TraceCheckUtils]: 6: Hoare triple {58743#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {58743#true} is VALID [2018-11-18 22:29:02,712 INFO L273 TraceCheckUtils]: 5: Hoare triple {58743#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {58743#true} is VALID [2018-11-18 22:29:02,713 INFO L256 TraceCheckUtils]: 4: Hoare triple {58743#true} call #t~ret4 := main(); {58743#true} is VALID [2018-11-18 22:29:02,713 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {58743#true} {58743#true} #139#return; {58743#true} is VALID [2018-11-18 22:29:02,713 INFO L273 TraceCheckUtils]: 2: Hoare triple {58743#true} assume true; {58743#true} is VALID [2018-11-18 22:29:02,713 INFO L273 TraceCheckUtils]: 1: Hoare triple {58743#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {58743#true} is VALID [2018-11-18 22:29:02,713 INFO L256 TraceCheckUtils]: 0: Hoare triple {58743#true} call ULTIMATE.init(); {58743#true} is VALID [2018-11-18 22:29:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:29:02,719 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:29:02,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2018-11-18 22:29:02,719 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-11-18 22:29:02,720 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:29:02,720 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 22 states. [2018-11-18 22:29:02,883 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 106 edges. 106 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:29:02,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-11-18 22:29:02,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-11-18 22:29:02,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2018-11-18 22:29:02,884 INFO L87 Difference]: Start difference. First operand 359 states and 412 transitions. Second operand 22 states. [2018-11-18 22:29:22,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:29:22,321 INFO L93 Difference]: Finished difference Result 1370 states and 1518 transitions. [2018-11-18 22:29:22,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-11-18 22:29:22,321 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 57 [2018-11-18 22:29:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 22:29:22,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 22:29:22,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 1318 transitions. [2018-11-18 22:29:22,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 22:29:22,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 1318 transitions. [2018-11-18 22:29:22,336 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 58 states and 1318 transitions. [2018-11-18 22:29:24,496 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 1318 edges. 1318 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:29:24,562 INFO L225 Difference]: With dead ends: 1370 [2018-11-18 22:29:24,563 INFO L226 Difference]: Without dead ends: 1368 [2018-11-18 22:29:24,564 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 999 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1264, Invalid=3026, Unknown=0, NotChecked=0, Total=4290 [2018-11-18 22:29:24,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1368 states. [2018-11-18 22:29:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1368 to 467. [2018-11-18 22:29:25,655 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-18 22:29:25,655 INFO L82 GeneralOperation]: Start isEquivalent. First operand 1368 states. Second operand 467 states. [2018-11-18 22:29:25,655 INFO L74 IsIncluded]: Start isIncluded. First operand 1368 states. Second operand 467 states. [2018-11-18 22:29:25,655 INFO L87 Difference]: Start difference. First operand 1368 states. Second operand 467 states. [2018-11-18 22:29:25,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:29:25,714 INFO L93 Difference]: Finished difference Result 1368 states and 1507 transitions. [2018-11-18 22:29:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1507 transitions. [2018-11-18 22:29:25,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:29:25,715 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:29:25,715 INFO L74 IsIncluded]: Start isIncluded. First operand 467 states. Second operand 1368 states. [2018-11-18 22:29:25,715 INFO L87 Difference]: Start difference. First operand 467 states. Second operand 1368 states. [2018-11-18 22:29:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 22:29:25,767 INFO L93 Difference]: Finished difference Result 1368 states and 1507 transitions. [2018-11-18 22:29:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1368 states and 1507 transitions. [2018-11-18 22:29:25,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 22:29:25,768 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-18 22:29:25,768 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-18 22:29:25,768 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-18 22:29:25,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2018-11-18 22:29:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 536 transitions. [2018-11-18 22:29:25,776 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 536 transitions. Word has length 57 [2018-11-18 22:29:25,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 22:29:25,777 INFO L480 AbstractCegarLoop]: Abstraction has 467 states and 536 transitions. [2018-11-18 22:29:25,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-11-18 22:29:25,777 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 536 transitions. [2018-11-18 22:29:25,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-11-18 22:29:25,777 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 22:29:25,778 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 22:29:25,779 INFO L423 AbstractCegarLoop]: === Iteration 36 === [mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 22:29:25,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 22:29:25,779 INFO L82 PathProgramCache]: Analyzing trace with hash -439565624, now seen corresponding path program 2 times [2018-11-18 22:29:25,779 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-18 22:29:25,780 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 37 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 37 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-18 22:29:25,807 INFO L101 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2018-11-18 22:29:25,996 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 22:29:25,996 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 22:29:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 22:29:26,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 22:29:26,284 INFO L256 TraceCheckUtils]: 0: Hoare triple {64023#true} call ULTIMATE.init(); {64023#true} is VALID [2018-11-18 22:29:26,285 INFO L273 TraceCheckUtils]: 1: Hoare triple {64023#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {64023#true} is VALID [2018-11-18 22:29:26,285 INFO L273 TraceCheckUtils]: 2: Hoare triple {64023#true} assume true; {64023#true} is VALID [2018-11-18 22:29:26,285 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {64023#true} {64023#true} #139#return; {64023#true} is VALID [2018-11-18 22:29:26,285 INFO L256 TraceCheckUtils]: 4: Hoare triple {64023#true} call #t~ret4 := main(); {64023#true} is VALID [2018-11-18 22:29:26,285 INFO L273 TraceCheckUtils]: 5: Hoare triple {64023#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {64023#true} is VALID [2018-11-18 22:29:26,285 INFO L273 TraceCheckUtils]: 6: Hoare triple {64023#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {64023#true} is VALID [2018-11-18 22:29:26,286 INFO L273 TraceCheckUtils]: 7: Hoare triple {64023#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,286 INFO L273 TraceCheckUtils]: 8: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,286 INFO L273 TraceCheckUtils]: 9: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,287 INFO L273 TraceCheckUtils]: 10: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,287 INFO L273 TraceCheckUtils]: 11: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,287 INFO L273 TraceCheckUtils]: 12: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,287 INFO L273 TraceCheckUtils]: 13: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,288 INFO L273 TraceCheckUtils]: 14: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,288 INFO L273 TraceCheckUtils]: 15: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,288 INFO L273 TraceCheckUtils]: 16: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {64049#(= (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,289 INFO L273 TraceCheckUtils]: 17: Hoare triple {64049#(= (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {64080#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,289 INFO L273 TraceCheckUtils]: 18: Hoare triple {64080#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {64080#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,290 INFO L273 TraceCheckUtils]: 19: Hoare triple {64080#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {64080#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,290 INFO L273 TraceCheckUtils]: 20: Hoare triple {64080#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {64080#(= (_ bv1 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,291 INFO L273 TraceCheckUtils]: 21: Hoare triple {64080#(= (_ bv1 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {64093#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,291 INFO L273 TraceCheckUtils]: 22: Hoare triple {64093#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {64093#(= (_ bv2 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,292 INFO L273 TraceCheckUtils]: 23: Hoare triple {64093#(= (_ bv2 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,292 INFO L273 TraceCheckUtils]: 24: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,293 INFO L273 TraceCheckUtils]: 25: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,293 INFO L273 TraceCheckUtils]: 26: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,294 INFO L273 TraceCheckUtils]: 27: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,294 INFO L273 TraceCheckUtils]: 28: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,295 INFO L273 TraceCheckUtils]: 29: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,295 INFO L273 TraceCheckUtils]: 30: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,296 INFO L273 TraceCheckUtils]: 31: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,296 INFO L273 TraceCheckUtils]: 32: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {64100#(= (_ bv3 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,297 INFO L273 TraceCheckUtils]: 33: Hoare triple {64100#(= (_ bv3 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {64131#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,297 INFO L273 TraceCheckUtils]: 34: Hoare triple {64131#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {64131#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,298 INFO L273 TraceCheckUtils]: 35: Hoare triple {64131#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {64131#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,298 INFO L273 TraceCheckUtils]: 36: Hoare triple {64131#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {64131#(= (_ bv4 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,299 INFO L273 TraceCheckUtils]: 37: Hoare triple {64131#(= (_ bv4 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {64144#(= (_ bv5 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,300 INFO L273 TraceCheckUtils]: 38: Hoare triple {64144#(= (_ bv5 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {64144#(= (_ bv5 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,300 INFO L273 TraceCheckUtils]: 39: Hoare triple {64144#(= (_ bv5 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,301 INFO L273 TraceCheckUtils]: 40: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,301 INFO L273 TraceCheckUtils]: 41: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,302 INFO L273 TraceCheckUtils]: 42: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,302 INFO L273 TraceCheckUtils]: 43: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,303 INFO L273 TraceCheckUtils]: 44: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,303 INFO L273 TraceCheckUtils]: 45: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,304 INFO L273 TraceCheckUtils]: 46: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,304 INFO L273 TraceCheckUtils]: 47: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,304 INFO L273 TraceCheckUtils]: 48: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,305 INFO L273 TraceCheckUtils]: 49: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {64151#(= (_ bv6 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,306 INFO L273 TraceCheckUtils]: 50: Hoare triple {64151#(= (_ bv6 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,306 INFO L273 TraceCheckUtils]: 51: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,307 INFO L273 TraceCheckUtils]: 52: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,307 INFO L273 TraceCheckUtils]: 53: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,308 INFO L273 TraceCheckUtils]: 54: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,308 INFO L273 TraceCheckUtils]: 55: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,309 INFO L273 TraceCheckUtils]: 56: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,309 INFO L273 TraceCheckUtils]: 57: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,309 INFO L273 TraceCheckUtils]: 58: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,310 INFO L273 TraceCheckUtils]: 59: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {64185#(= (_ bv7 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,311 INFO L273 TraceCheckUtils]: 60: Hoare triple {64185#(= (_ bv7 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {64216#(= (_ bv8 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,311 INFO L273 TraceCheckUtils]: 61: Hoare triple {64216#(= (_ bv8 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {64216#(= (_ bv8 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,312 INFO L273 TraceCheckUtils]: 62: Hoare triple {64216#(= (_ bv8 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {64216#(= (_ bv8 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,312 INFO L273 TraceCheckUtils]: 63: Hoare triple {64216#(= (_ bv8 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {64216#(= (_ bv8 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,313 INFO L273 TraceCheckUtils]: 64: Hoare triple {64216#(= (_ bv8 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {64229#(= (_ bv9 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,314 INFO L273 TraceCheckUtils]: 65: Hoare triple {64229#(= (_ bv9 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {64229#(= (_ bv9 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,315 INFO L273 TraceCheckUtils]: 66: Hoare triple {64229#(= (_ bv9 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {64236#(= (_ bv10 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,316 INFO L273 TraceCheckUtils]: 67: Hoare triple {64236#(= (_ bv10 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {64236#(= (_ bv10 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,316 INFO L273 TraceCheckUtils]: 68: Hoare triple {64236#(= (_ bv10 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {64236#(= (_ bv10 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,317 INFO L273 TraceCheckUtils]: 69: Hoare triple {64236#(= (_ bv10 32) main_~main__j~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {64236#(= (_ bv10 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,317 INFO L273 TraceCheckUtils]: 70: Hoare triple {64236#(= (_ bv10 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {64236#(= (_ bv10 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,318 INFO L273 TraceCheckUtils]: 71: Hoare triple {64236#(= (_ bv10 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {64236#(= (_ bv10 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,318 INFO L273 TraceCheckUtils]: 72: Hoare triple {64236#(= (_ bv10 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {64236#(= (_ bv10 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,318 INFO L273 TraceCheckUtils]: 73: Hoare triple {64236#(= (_ bv10 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {64258#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-18 22:29:26,319 INFO L273 TraceCheckUtils]: 74: Hoare triple {64258#(= (bvadd main_~__VERIFIER_assert__cond~5 (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == ~__VERIFIER_assert__cond~5; {64024#false} is VALID [2018-11-18 22:29:26,319 INFO L273 TraceCheckUtils]: 75: Hoare triple {64024#false} assume !false; {64024#false} is VALID [2018-11-18 22:29:26,324 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:29:26,324 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 22:29:26,873 INFO L273 TraceCheckUtils]: 75: Hoare triple {64024#false} assume !false; {64024#false} is VALID [2018-11-18 22:29:26,873 INFO L273 TraceCheckUtils]: 74: Hoare triple {64268#(not (= main_~__VERIFIER_assert__cond~5 (_ bv0 32)))} assume 0bv32 == ~__VERIFIER_assert__cond~5; {64024#false} is VALID [2018-11-18 22:29:26,876 INFO L273 TraceCheckUtils]: 73: Hoare triple {64272#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {64268#(not (= main_~__VERIFIER_assert__cond~5 (_ bv0 32)))} is VALID [2018-11-18 22:29:26,876 INFO L273 TraceCheckUtils]: 72: Hoare triple {64272#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {64272#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,879 INFO L273 TraceCheckUtils]: 71: Hoare triple {64272#(bvsle (_ bv0 32) main_~main__j~0)} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {64272#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,879 INFO L273 TraceCheckUtils]: 70: Hoare triple {64272#(bvsle (_ bv0 32) main_~main__j~0)} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {64272#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,882 INFO L273 TraceCheckUtils]: 69: Hoare triple {64272#(bvsle (_ bv0 32) main_~main__j~0)} assume !~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0); {64272#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,882 INFO L273 TraceCheckUtils]: 68: Hoare triple {64272#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__j~0, ~main__limit~0); {64272#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,885 INFO L273 TraceCheckUtils]: 67: Hoare triple {64272#(bvsle (_ bv0 32) main_~main__j~0)} assume ~bvslt32(~main__i~0, ~main__len~0); {64272#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,885 INFO L273 TraceCheckUtils]: 66: Hoare triple {64294#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {64272#(bvsle (_ bv0 32) main_~main__j~0)} is VALID [2018-11-18 22:29:26,888 INFO L273 TraceCheckUtils]: 65: Hoare triple {64294#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {64294#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:29:26,891 INFO L273 TraceCheckUtils]: 64: Hoare triple {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {64294#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv1 32)))} is VALID [2018-11-18 22:29:26,892 INFO L273 TraceCheckUtils]: 63: Hoare triple {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:26,892 INFO L273 TraceCheckUtils]: 62: Hoare triple {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:26,894 INFO L273 TraceCheckUtils]: 61: Hoare triple {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:26,896 INFO L273 TraceCheckUtils]: 60: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {64301#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv2 32)))} is VALID [2018-11-18 22:29:26,898 INFO L273 TraceCheckUtils]: 59: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,898 INFO L273 TraceCheckUtils]: 58: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,900 INFO L273 TraceCheckUtils]: 57: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,900 INFO L273 TraceCheckUtils]: 56: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,903 INFO L273 TraceCheckUtils]: 55: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,903 INFO L273 TraceCheckUtils]: 54: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,905 INFO L273 TraceCheckUtils]: 53: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,905 INFO L273 TraceCheckUtils]: 52: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,907 INFO L273 TraceCheckUtils]: 51: Hoare triple {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,910 INFO L273 TraceCheckUtils]: 50: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~5);~main____CPAchecker_TMP_6~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_7~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0); {64314#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv3 32)))} is VALID [2018-11-18 22:29:26,911 INFO L273 TraceCheckUtils]: 49: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~4);havoc ~__tmp_6~0;~__tmp_6~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~5;~__VERIFIER_assert__cond~5 := ~__tmp_6~0; {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,911 INFO L273 TraceCheckUtils]: 48: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~3);havoc ~__tmp_5~0;~__tmp_5~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~4;~__VERIFIER_assert__cond~4 := ~__tmp_5~0; {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,913 INFO L273 TraceCheckUtils]: 47: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~2);havoc ~__tmp_4~0;~__tmp_4~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~3;~__VERIFIER_assert__cond~3 := ~__tmp_4~0; {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,913 INFO L273 TraceCheckUtils]: 46: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} havoc ~__tmp_3~0;~__tmp_3~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~2;~__VERIFIER_assert__cond~2 := ~__tmp_3~0; {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,916 INFO L273 TraceCheckUtils]: 45: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~main____CPAchecker_TMP_0~0); {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,916 INFO L273 TraceCheckUtils]: 44: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,919 INFO L273 TraceCheckUtils]: 43: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,919 INFO L273 TraceCheckUtils]: 42: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,922 INFO L273 TraceCheckUtils]: 41: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,922 INFO L273 TraceCheckUtils]: 40: Hoare triple {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,924 INFO L273 TraceCheckUtils]: 39: Hoare triple {64379#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {64345#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv4 32)))} is VALID [2018-11-18 22:29:26,924 INFO L273 TraceCheckUtils]: 38: Hoare triple {64379#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {64379#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:26,928 INFO L273 TraceCheckUtils]: 37: Hoare triple {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {64379#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv5 32)))} is VALID [2018-11-18 22:29:26,928 INFO L273 TraceCheckUtils]: 36: Hoare triple {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:29:26,929 INFO L273 TraceCheckUtils]: 35: Hoare triple {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:29:26,929 INFO L273 TraceCheckUtils]: 34: Hoare triple {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:29:26,932 INFO L273 TraceCheckUtils]: 33: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {64386#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv6 32)))} is VALID [2018-11-18 22:29:26,932 INFO L273 TraceCheckUtils]: 32: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,933 INFO L273 TraceCheckUtils]: 31: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,933 INFO L273 TraceCheckUtils]: 30: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,936 INFO L273 TraceCheckUtils]: 29: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,936 INFO L273 TraceCheckUtils]: 28: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,939 INFO L273 TraceCheckUtils]: 27: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,939 INFO L273 TraceCheckUtils]: 26: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,942 INFO L273 TraceCheckUtils]: 25: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,942 INFO L273 TraceCheckUtils]: 24: Hoare triple {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,945 INFO L273 TraceCheckUtils]: 23: Hoare triple {64430#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~15);~main____CPAchecker_TMP_5~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0); {64399#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv7 32)))} is VALID [2018-11-18 22:29:26,945 INFO L273 TraceCheckUtils]: 22: Hoare triple {64430#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~14);havoc ~__tmp_16~0;~__tmp_16~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~15;~__VERIFIER_assert__cond~15 := ~__tmp_16~0; {64430#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:26,948 INFO L273 TraceCheckUtils]: 21: Hoare triple {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~13);~main____CPAchecker_TMP_3~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_4~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_15~0;~__tmp_15~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~14;~__VERIFIER_assert__cond~14 := ~__tmp_15~0; {64430#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv8 32)))} is VALID [2018-11-18 22:29:26,949 INFO L273 TraceCheckUtils]: 20: Hoare triple {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~12);havoc ~__tmp_14~0;~__tmp_14~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~13;~__VERIFIER_assert__cond~13 := ~__tmp_14~0; {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} is VALID [2018-11-18 22:29:26,951 INFO L273 TraceCheckUtils]: 19: Hoare triple {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~11);havoc ~__tmp_13~0;~__tmp_13~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~12;~__VERIFIER_assert__cond~12 := ~__tmp_13~0; {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} is VALID [2018-11-18 22:29:26,951 INFO L273 TraceCheckUtils]: 18: Hoare triple {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~10);havoc ~__tmp_12~0;~__tmp_12~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~11;~__VERIFIER_assert__cond~11 := ~__tmp_12~0; {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} is VALID [2018-11-18 22:29:26,954 INFO L273 TraceCheckUtils]: 17: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~9);~main____CPAchecker_TMP_1~0 := ~main__j~0;~main__j~0 := ~bvadd32(1bv32, ~main__j~0);~main____CPAchecker_TMP_2~0 := ~main__i~0;~main__i~0 := ~bvadd32(1bv32, ~main__i~0);havoc ~__tmp_11~0;~__tmp_11~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~10;~__VERIFIER_assert__cond~10 := ~__tmp_11~0; {64437#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv9 32)))} is VALID [2018-11-18 22:29:26,954 INFO L273 TraceCheckUtils]: 16: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~8);havoc ~__tmp_10~0;~__tmp_10~0 := (if ~bvsle32(0bv32, ~main__j~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~9;~__VERIFIER_assert__cond~9 := ~__tmp_10~0; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,955 INFO L273 TraceCheckUtils]: 15: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~7);havoc ~__tmp_9~0;~__tmp_9~0 := (if ~bvslt32(~main__j~0, ~main__bufsize~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~8;~__VERIFIER_assert__cond~8 := ~__tmp_9~0; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,955 INFO L273 TraceCheckUtils]: 14: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~6);havoc ~__tmp_8~0;~__tmp_8~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~7;~__VERIFIER_assert__cond~7 := ~__tmp_8~0; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,957 INFO L273 TraceCheckUtils]: 13: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume !!(0bv32 == ~main____CPAchecker_TMP_0~0);havoc ~__tmp_7~0;~__tmp_7~0 := (if ~bvslt32(~main__i~0, ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~6;~__VERIFIER_assert__cond~6 := ~__tmp_7~0; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,957 INFO L273 TraceCheckUtils]: 12: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~1);havoc ~main____CPAchecker_TMP_0~0;~main____CPAchecker_TMP_0~0 := #t~nondet3;havoc #t~nondet3; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,960 INFO L273 TraceCheckUtils]: 11: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume !(0bv32 == ~__VERIFIER_assert__cond~0);havoc ~__tmp_2~0;~__tmp_2~0 := (if ~bvsle32(0bv32, ~main__i~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~1;~__VERIFIER_assert__cond~1 := ~__tmp_2~0; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,960 INFO L273 TraceCheckUtils]: 10: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~bvslt32(~bvadd32(1bv32, ~main__i~0), ~main__len~0) then 1bv32 else 0bv32);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,962 INFO L273 TraceCheckUtils]: 9: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume ~bvslt32(~main__j~0, ~main__limit~0); {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,962 INFO L273 TraceCheckUtils]: 8: Hoare triple {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} assume ~bvslt32(~main__i~0, ~main__len~0); {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,964 INFO L273 TraceCheckUtils]: 7: Hoare triple {64023#true} assume ~bvslt32(~main__i~0, ~main__len~0);~main__j~0 := 0bv32; {64450#(bvsle (_ bv0 32) (bvadd main_~main__j~0 (_ bv10 32)))} is VALID [2018-11-18 22:29:26,964 INFO L273 TraceCheckUtils]: 6: Hoare triple {64023#true} assume !~bvslt32(~main__bufsize~0, 0bv32);~main__len~0 := #t~nondet2;havoc #t~nondet2;~main__limit~0 := ~bvsub32(~main__bufsize~0, 4bv32);~main__i~0 := 0bv32; {64023#true} is VALID [2018-11-18 22:29:26,964 INFO L273 TraceCheckUtils]: 5: Hoare triple {64023#true} havoc ~main__len~0;havoc ~main__i~0;havoc ~main__j~0;havoc ~main__bufsize~0;~main__bufsize~0 := #t~nondet1;havoc #t~nondet1; {64023#true} is VALID [2018-11-18 22:29:26,964 INFO L256 TraceCheckUtils]: 4: Hoare triple {64023#true} call #t~ret4 := main(); {64023#true} is VALID [2018-11-18 22:29:26,964 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {64023#true} {64023#true} #139#return; {64023#true} is VALID [2018-11-18 22:29:26,964 INFO L273 TraceCheckUtils]: 2: Hoare triple {64023#true} assume true; {64023#true} is VALID [2018-11-18 22:29:26,964 INFO L273 TraceCheckUtils]: 1: Hoare triple {64023#true} ~__return_main~0 := 0bv32;~__return_334~0 := 0bv32; {64023#true} is VALID [2018-11-18 22:29:26,964 INFO L256 TraceCheckUtils]: 0: Hoare triple {64023#true} call ULTIMATE.init(); {64023#true} is VALID [2018-11-18 22:29:26,970 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 22:29:26,974 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 22:29:26,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2018-11-18 22:29:26,974 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 76 [2018-11-18 22:29:26,974 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-18 22:29:26,975 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 26 states. [2018-11-18 22:29:27,254 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 144 edges. 144 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-18 22:29:27,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-11-18 22:29:27,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-11-18 22:29:27,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2018-11-18 22:29:27,255 INFO L87 Difference]: Start difference. First operand 467 states and 536 transitions. Second operand 26 states.