/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 23:38:04,378 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 23:38:04,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 23:38:04,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 23:38:04,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 23:38:04,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 23:38:04,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 23:38:04,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 23:38:04,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 23:38:04,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 23:38:04,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 23:38:04,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 23:38:04,404 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 23:38:04,405 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 23:38:04,406 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 23:38:04,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 23:38:04,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 23:38:04,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 23:38:04,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 23:38:04,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 23:38:04,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 23:38:04,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 23:38:04,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 23:38:04,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 23:38:04,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 23:38:04,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-08 23:38:04,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-08 23:38:04,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-08 23:38:04,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-08 23:38:04,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-08 23:38:04,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-08 23:38:04,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-08 23:38:04,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-08 23:38:04,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 23:38:04,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 23:38:04,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 23:38:04,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 23:38:04,440 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 23:38:04,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 23:38:04,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 23:38:04,442 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 23:38:04,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 23:38:04,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 23:38:04,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 23:38:04,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 23:38:04,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 23:38:04,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 23:38:04,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 23:38:04,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 23:38:04,444 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 23:38:04,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 23:38:04,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 23:38:04,444 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 23:38:04,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 23:38:04,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 23:38:04,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 23:38:04,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 23:38:04,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 23:38:04,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 23:38:04,446 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 23:38:04,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 23:38:04,739 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 23:38:04,743 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 23:38:04,744 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 23:38:04,745 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 23:38:04,745 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-08 23:38:04,824 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8306259/0f83eee84643462cb1a8515091894543/FLAG9601366e4 [2020-07-08 23:38:05,278 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 23:38:05,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-08 23:38:05,287 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8306259/0f83eee84643462cb1a8515091894543/FLAG9601366e4 [2020-07-08 23:38:05,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd8306259/0f83eee84643462cb1a8515091894543 [2020-07-08 23:38:05,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 23:38:05,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 23:38:05,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 23:38:05,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 23:38:05,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 23:38:05,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:05,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bec6492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05, skipping insertion in model container [2020-07-08 23:38:05,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:05,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 23:38:05,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 23:38:05,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:38:05,889 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 23:38:05,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 23:38:05,932 INFO L208 MainTranslator]: Completed translation [2020-07-08 23:38:05,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05 WrapperNode [2020-07-08 23:38:05,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 23:38:05,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 23:38:05,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 23:38:05,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 23:38:05,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:05,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:06,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:06,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:06,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:06,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:06,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (1/1) ... [2020-07-08 23:38:06,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 23:38:06,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 23:38:06,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 23:38:06,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 23:38:06,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (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 [2020-07-08 23:38:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 23:38:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 23:38:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 23:38:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 23:38:06,137 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 23:38:06,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 23:38:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 23:38:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 23:38:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 23:38:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 23:38:06,138 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 23:38:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 23:38:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 23:38:06,630 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 23:38:06,630 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-08 23:38:06,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:38:06 BoogieIcfgContainer [2020-07-08 23:38:06,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 23:38:06,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 23:38:06,637 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 23:38:06,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 23:38:06,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 11:38:05" (1/3) ... [2020-07-08 23:38:06,641 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e8ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:38:06, skipping insertion in model container [2020-07-08 23:38:06,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 11:38:05" (2/3) ... [2020-07-08 23:38:06,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e8ccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 11:38:06, skipping insertion in model container [2020-07-08 23:38:06,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 11:38:06" (3/3) ... [2020-07-08 23:38:06,644 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2020-07-08 23:38:06,655 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 23:38:06,662 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 23:38:06,676 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 23:38:06,699 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 23:38:06,700 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 23:38:06,700 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 23:38:06,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 23:38:06,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 23:38:06,701 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 23:38:06,701 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 23:38:06,701 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 23:38:06,719 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-08 23:38:06,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 23:38:06,732 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:06,733 INFO L422 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] [2020-07-08 23:38:06,733 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:06,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:06,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1441743938, now seen corresponding path program 1 times [2020-07-08 23:38:06,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:06,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142547415] [2020-07-08 23:38:06,747 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:07,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:07,060 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 23:38:07,061 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-08 23:38:07,065 INFO L263 TraceCheckUtils]: 0: Hoare triple {77#true} call ULTIMATE.init(); {77#true} is VALID [2020-07-08 23:38:07,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 23:38:07,067 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-08 23:38:07,067 INFO L263 TraceCheckUtils]: 3: Hoare triple {77#true} call #t~ret10 := main(); {77#true} is VALID [2020-07-08 23:38:07,068 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} havoc ~len~0; {77#true} is VALID [2020-07-08 23:38:07,069 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-08 23:38:07,069 INFO L280 TraceCheckUtils]: 6: Hoare triple {77#true} havoc ~j~0; {77#true} is VALID [2020-07-08 23:38:07,070 INFO L280 TraceCheckUtils]: 7: Hoare triple {77#true} havoc ~bufsize~0; {77#true} is VALID [2020-07-08 23:38:07,070 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-08 23:38:07,071 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~bufsize~0 := #t~nondet0; {77#true} is VALID [2020-07-08 23:38:07,071 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-08 23:38:07,071 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~bufsize~0 < 0); {77#true} is VALID [2020-07-08 23:38:07,072 INFO L280 TraceCheckUtils]: 12: Hoare triple {77#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {77#true} is VALID [2020-07-08 23:38:07,072 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~len~0 := #t~nondet1; {77#true} is VALID [2020-07-08 23:38:07,072 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} havoc #t~nondet1; {77#true} is VALID [2020-07-08 23:38:07,073 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} ~limit~0 := ~bufsize~0 - 4; {77#true} is VALID [2020-07-08 23:38:07,073 INFO L280 TraceCheckUtils]: 16: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-08 23:38:07,076 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} assume !!(~i~0 < ~len~0); {77#true} is VALID [2020-07-08 23:38:07,076 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#true} ~j~0 := 0; {77#true} is VALID [2020-07-08 23:38:07,077 INFO L280 TraceCheckUtils]: 19: Hoare triple {77#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {77#true} is VALID [2020-07-08 23:38:07,082 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} assume 1 + ~i~0 < ~len~0; {81#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:07,085 INFO L263 TraceCheckUtils]: 21: Hoare triple {81#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {82#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:07,089 INFO L280 TraceCheckUtils]: 22: Hoare triple {82#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {83#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:07,090 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {78#false} is VALID [2020-07-08 23:38:07,091 INFO L280 TraceCheckUtils]: 24: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-08 23:38:07,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:38:07,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142547415] [2020-07-08 23:38:07,106 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:07,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:38:07,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458596368] [2020-07-08 23:38:07,116 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 23:38:07,120 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:07,124 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:38:07,174 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:07,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:38:07,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:07,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:38:07,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:38:07,191 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-07-08 23:38:07,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:07,944 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2020-07-08 23:38:07,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:38:07,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 23:38:07,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:07,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:07,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-08 23:38:07,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:07,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-08 23:38:07,981 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 210 transitions. [2020-07-08 23:38:08,295 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:08,328 INFO L225 Difference]: With dead ends: 143 [2020-07-08 23:38:08,328 INFO L226 Difference]: Without dead ends: 81 [2020-07-08 23:38:08,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 23:38:08,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-08 23:38:08,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2020-07-08 23:38:08,491 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:08,492 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 73 states. [2020-07-08 23:38:08,493 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 73 states. [2020-07-08 23:38:08,493 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 73 states. [2020-07-08 23:38:08,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:08,518 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-08 23:38:08,521 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-08 23:38:08,524 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:08,524 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:08,525 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 81 states. [2020-07-08 23:38:08,525 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 81 states. [2020-07-08 23:38:08,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:08,540 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-08 23:38:08,541 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-08 23:38:08,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:08,550 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:08,550 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:08,551 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:08,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-08 23:38:08,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2020-07-08 23:38:08,563 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 25 [2020-07-08 23:38:08,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:08,563 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2020-07-08 23:38:08,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:38:08,565 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 91 transitions. [2020-07-08 23:38:08,707 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:08,707 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2020-07-08 23:38:08,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 23:38:08,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:08,708 INFO L422 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] [2020-07-08 23:38:08,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 23:38:08,709 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:08,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:08,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1406858677, now seen corresponding path program 1 times [2020-07-08 23:38:08,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:08,710 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1312691600] [2020-07-08 23:38:08,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:08,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:08,815 INFO L280 TraceCheckUtils]: 0: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-08 23:38:08,815 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-08 23:38:08,816 INFO L263 TraceCheckUtils]: 0: Hoare triple {682#true} call ULTIMATE.init(); {682#true} is VALID [2020-07-08 23:38:08,816 INFO L280 TraceCheckUtils]: 1: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-08 23:38:08,816 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-08 23:38:08,817 INFO L263 TraceCheckUtils]: 3: Hoare triple {682#true} call #t~ret10 := main(); {682#true} is VALID [2020-07-08 23:38:08,817 INFO L280 TraceCheckUtils]: 4: Hoare triple {682#true} havoc ~len~0; {682#true} is VALID [2020-07-08 23:38:08,817 INFO L280 TraceCheckUtils]: 5: Hoare triple {682#true} havoc ~i~0; {682#true} is VALID [2020-07-08 23:38:08,818 INFO L280 TraceCheckUtils]: 6: Hoare triple {682#true} havoc ~j~0; {682#true} is VALID [2020-07-08 23:38:08,818 INFO L280 TraceCheckUtils]: 7: Hoare triple {682#true} havoc ~bufsize~0; {682#true} is VALID [2020-07-08 23:38:08,818 INFO L280 TraceCheckUtils]: 8: Hoare triple {682#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {682#true} is VALID [2020-07-08 23:38:08,819 INFO L280 TraceCheckUtils]: 9: Hoare triple {682#true} ~bufsize~0 := #t~nondet0; {682#true} is VALID [2020-07-08 23:38:08,819 INFO L280 TraceCheckUtils]: 10: Hoare triple {682#true} havoc #t~nondet0; {682#true} is VALID [2020-07-08 23:38:08,819 INFO L280 TraceCheckUtils]: 11: Hoare triple {682#true} assume !(~bufsize~0 < 0); {682#true} is VALID [2020-07-08 23:38:08,819 INFO L280 TraceCheckUtils]: 12: Hoare triple {682#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {682#true} is VALID [2020-07-08 23:38:08,820 INFO L280 TraceCheckUtils]: 13: Hoare triple {682#true} ~len~0 := #t~nondet1; {682#true} is VALID [2020-07-08 23:38:08,820 INFO L280 TraceCheckUtils]: 14: Hoare triple {682#true} havoc #t~nondet1; {682#true} is VALID [2020-07-08 23:38:08,820 INFO L280 TraceCheckUtils]: 15: Hoare triple {682#true} ~limit~0 := ~bufsize~0 - 4; {682#true} is VALID [2020-07-08 23:38:08,821 INFO L280 TraceCheckUtils]: 16: Hoare triple {682#true} ~i~0 := 0; {682#true} is VALID [2020-07-08 23:38:08,823 INFO L280 TraceCheckUtils]: 17: Hoare triple {682#true} assume !!(~i~0 < ~len~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 23:38:08,824 INFO L280 TraceCheckUtils]: 18: Hoare triple {686#(< main_~i~0 main_~len~0)} ~j~0 := 0; {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 23:38:08,824 INFO L280 TraceCheckUtils]: 19: Hoare triple {686#(< main_~i~0 main_~len~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 23:38:08,825 INFO L280 TraceCheckUtils]: 20: Hoare triple {686#(< main_~i~0 main_~len~0)} assume !(1 + ~i~0 < ~len~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 23:38:08,827 INFO L263 TraceCheckUtils]: 21: Hoare triple {686#(< main_~i~0 main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {687#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:08,828 INFO L280 TraceCheckUtils]: 22: Hoare triple {687#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {688#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:08,828 INFO L280 TraceCheckUtils]: 23: Hoare triple {688#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {683#false} is VALID [2020-07-08 23:38:08,829 INFO L280 TraceCheckUtils]: 24: Hoare triple {683#false} assume !false; {683#false} is VALID [2020-07-08 23:38:08,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:38:08,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1312691600] [2020-07-08 23:38:08,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:08,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:38:08,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124312961] [2020-07-08 23:38:08,833 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 23:38:08,833 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:08,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:38:08,864 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:08,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:38:08,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:08,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:38:08,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:38:08,866 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 5 states. [2020-07-08 23:38:09,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:09,325 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-07-08 23:38:09,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:38:09,325 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 23:38:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:09,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:09,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-08 23:38:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-08 23:38:09,334 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 94 transitions. [2020-07-08 23:38:09,445 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:09,449 INFO L225 Difference]: With dead ends: 85 [2020-07-08 23:38:09,450 INFO L226 Difference]: Without dead ends: 83 [2020-07-08 23:38:09,451 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 23:38:09,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-08 23:38:09,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-07-08 23:38:09,545 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:09,546 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 81 states. [2020-07-08 23:38:09,546 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 81 states. [2020-07-08 23:38:09,546 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 81 states. [2020-07-08 23:38:09,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:09,552 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-08 23:38:09,552 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-08 23:38:09,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:09,553 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:09,554 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 83 states. [2020-07-08 23:38:09,554 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 83 states. [2020-07-08 23:38:09,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:09,560 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-08 23:38:09,560 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-08 23:38:09,560 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:09,561 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:09,561 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:09,561 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:09,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-08 23:38:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2020-07-08 23:38:09,566 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 25 [2020-07-08 23:38:09,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:09,567 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2020-07-08 23:38:09,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:38:09,567 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 97 transitions. [2020-07-08 23:38:09,683 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:09,684 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2020-07-08 23:38:09,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-08 23:38:09,685 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:09,686 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-07-08 23:38:09,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 23:38:09,687 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:09,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:09,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1771333938, now seen corresponding path program 1 times [2020-07-08 23:38:09,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:09,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931393749] [2020-07-08 23:38:09,688 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:09,759 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 23:38:09,759 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-08 23:38:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:09,779 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-08 23:38:09,780 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-08 23:38:09,780 INFO L280 TraceCheckUtils]: 2: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 23:38:09,781 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:09,781 INFO L263 TraceCheckUtils]: 0: Hoare triple {1191#true} call ULTIMATE.init(); {1191#true} is VALID [2020-07-08 23:38:09,781 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 23:38:09,781 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-08 23:38:09,782 INFO L263 TraceCheckUtils]: 3: Hoare triple {1191#true} call #t~ret10 := main(); {1191#true} is VALID [2020-07-08 23:38:09,782 INFO L280 TraceCheckUtils]: 4: Hoare triple {1191#true} havoc ~len~0; {1191#true} is VALID [2020-07-08 23:38:09,782 INFO L280 TraceCheckUtils]: 5: Hoare triple {1191#true} havoc ~i~0; {1191#true} is VALID [2020-07-08 23:38:09,783 INFO L280 TraceCheckUtils]: 6: Hoare triple {1191#true} havoc ~j~0; {1191#true} is VALID [2020-07-08 23:38:09,783 INFO L280 TraceCheckUtils]: 7: Hoare triple {1191#true} havoc ~bufsize~0; {1191#true} is VALID [2020-07-08 23:38:09,783 INFO L280 TraceCheckUtils]: 8: Hoare triple {1191#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1191#true} is VALID [2020-07-08 23:38:09,783 INFO L280 TraceCheckUtils]: 9: Hoare triple {1191#true} ~bufsize~0 := #t~nondet0; {1191#true} is VALID [2020-07-08 23:38:09,784 INFO L280 TraceCheckUtils]: 10: Hoare triple {1191#true} havoc #t~nondet0; {1191#true} is VALID [2020-07-08 23:38:09,784 INFO L280 TraceCheckUtils]: 11: Hoare triple {1191#true} assume !(~bufsize~0 < 0); {1191#true} is VALID [2020-07-08 23:38:09,784 INFO L280 TraceCheckUtils]: 12: Hoare triple {1191#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1191#true} is VALID [2020-07-08 23:38:09,785 INFO L280 TraceCheckUtils]: 13: Hoare triple {1191#true} ~len~0 := #t~nondet1; {1191#true} is VALID [2020-07-08 23:38:09,785 INFO L280 TraceCheckUtils]: 14: Hoare triple {1191#true} havoc #t~nondet1; {1191#true} is VALID [2020-07-08 23:38:09,785 INFO L280 TraceCheckUtils]: 15: Hoare triple {1191#true} ~limit~0 := ~bufsize~0 - 4; {1191#true} is VALID [2020-07-08 23:38:09,786 INFO L280 TraceCheckUtils]: 16: Hoare triple {1191#true} ~i~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:09,786 INFO L280 TraceCheckUtils]: 17: Hoare triple {1195#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:09,787 INFO L280 TraceCheckUtils]: 18: Hoare triple {1195#(<= 0 main_~i~0)} ~j~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:09,787 INFO L280 TraceCheckUtils]: 19: Hoare triple {1195#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:09,788 INFO L280 TraceCheckUtils]: 20: Hoare triple {1195#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:09,788 INFO L263 TraceCheckUtils]: 21: Hoare triple {1195#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {1191#true} is VALID [2020-07-08 23:38:09,788 INFO L280 TraceCheckUtils]: 22: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-08 23:38:09,788 INFO L280 TraceCheckUtils]: 23: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-08 23:38:09,789 INFO L280 TraceCheckUtils]: 24: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 23:38:09,791 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:09,792 INFO L263 TraceCheckUtils]: 26: Hoare triple {1195#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {1200#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:09,792 INFO L280 TraceCheckUtils]: 27: Hoare triple {1200#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1201#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:09,793 INFO L280 TraceCheckUtils]: 28: Hoare triple {1201#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1192#false} is VALID [2020-07-08 23:38:09,793 INFO L280 TraceCheckUtils]: 29: Hoare triple {1192#false} assume !false; {1192#false} is VALID [2020-07-08 23:38:09,796 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 23:38:09,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931393749] [2020-07-08 23:38:09,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:09,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:38:09,797 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432198514] [2020-07-08 23:38:09,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-08 23:38:09,798 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:09,798 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:38:09,839 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:09,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:38:09,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:09,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:38:09,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:38:09,840 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand 5 states. [2020-07-08 23:38:10,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:10,445 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2020-07-08 23:38:10,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:38:10,446 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-08 23:38:10,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:10,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-08 23:38:10,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:10,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-08 23:38:10,462 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 132 transitions. [2020-07-08 23:38:10,611 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:10,616 INFO L225 Difference]: With dead ends: 116 [2020-07-08 23:38:10,616 INFO L226 Difference]: Without dead ends: 114 [2020-07-08 23:38:10,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 23:38:10,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-08 23:38:10,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2020-07-08 23:38:10,743 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:10,744 INFO L82 GeneralOperation]: Start isEquivalent. First operand 114 states. Second operand 100 states. [2020-07-08 23:38:10,744 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 100 states. [2020-07-08 23:38:10,744 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 100 states. [2020-07-08 23:38:10,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:10,755 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-08 23:38:10,755 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-08 23:38:10,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:10,756 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:10,756 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 114 states. [2020-07-08 23:38:10,756 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 114 states. [2020-07-08 23:38:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:10,764 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-08 23:38:10,765 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-08 23:38:10,766 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:10,766 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:10,766 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:10,766 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:10,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-08 23:38:10,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2020-07-08 23:38:10,775 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 30 [2020-07-08 23:38:10,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:10,776 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2020-07-08 23:38:10,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:38:10,776 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 125 transitions. [2020-07-08 23:38:10,941 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2020-07-08 23:38:10,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-08 23:38:10,942 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:10,943 INFO L422 BasicCegarLoop]: trace histogram [3, 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, 1, 1] [2020-07-08 23:38:10,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 23:38:10,943 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:10,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:10,944 INFO L82 PathProgramCache]: Analyzing trace with hash 456630219, now seen corresponding path program 1 times [2020-07-08 23:38:10,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:10,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [563950092] [2020-07-08 23:38:10,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:11,033 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 23:38:11,033 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-08 23:38:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:11,043 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 23:38:11,043 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 23:38:11,043 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 23:38:11,044 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #147#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:11,061 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 23:38:11,061 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 23:38:11,062 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 23:38:11,062 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #149#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,063 INFO L263 TraceCheckUtils]: 0: Hoare triple {1866#true} call ULTIMATE.init(); {1866#true} is VALID [2020-07-08 23:38:11,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 23:38:11,063 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-08 23:38:11,064 INFO L263 TraceCheckUtils]: 3: Hoare triple {1866#true} call #t~ret10 := main(); {1866#true} is VALID [2020-07-08 23:38:11,064 INFO L280 TraceCheckUtils]: 4: Hoare triple {1866#true} havoc ~len~0; {1866#true} is VALID [2020-07-08 23:38:11,064 INFO L280 TraceCheckUtils]: 5: Hoare triple {1866#true} havoc ~i~0; {1866#true} is VALID [2020-07-08 23:38:11,064 INFO L280 TraceCheckUtils]: 6: Hoare triple {1866#true} havoc ~j~0; {1866#true} is VALID [2020-07-08 23:38:11,065 INFO L280 TraceCheckUtils]: 7: Hoare triple {1866#true} havoc ~bufsize~0; {1866#true} is VALID [2020-07-08 23:38:11,065 INFO L280 TraceCheckUtils]: 8: Hoare triple {1866#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1866#true} is VALID [2020-07-08 23:38:11,065 INFO L280 TraceCheckUtils]: 9: Hoare triple {1866#true} ~bufsize~0 := #t~nondet0; {1866#true} is VALID [2020-07-08 23:38:11,065 INFO L280 TraceCheckUtils]: 10: Hoare triple {1866#true} havoc #t~nondet0; {1866#true} is VALID [2020-07-08 23:38:11,066 INFO L280 TraceCheckUtils]: 11: Hoare triple {1866#true} assume !(~bufsize~0 < 0); {1866#true} is VALID [2020-07-08 23:38:11,066 INFO L280 TraceCheckUtils]: 12: Hoare triple {1866#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1866#true} is VALID [2020-07-08 23:38:11,066 INFO L280 TraceCheckUtils]: 13: Hoare triple {1866#true} ~len~0 := #t~nondet1; {1866#true} is VALID [2020-07-08 23:38:11,066 INFO L280 TraceCheckUtils]: 14: Hoare triple {1866#true} havoc #t~nondet1; {1866#true} is VALID [2020-07-08 23:38:11,068 INFO L280 TraceCheckUtils]: 15: Hoare triple {1866#true} ~limit~0 := ~bufsize~0 - 4; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,069 INFO L280 TraceCheckUtils]: 16: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~i~0 := 0; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,069 INFO L280 TraceCheckUtils]: 17: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0); {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,070 INFO L280 TraceCheckUtils]: 18: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~j~0 := 0; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,070 INFO L280 TraceCheckUtils]: 19: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,071 INFO L280 TraceCheckUtils]: 20: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} assume !(1 + ~i~0 < ~len~0); {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,071 INFO L263 TraceCheckUtils]: 21: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {1866#true} is VALID [2020-07-08 23:38:11,071 INFO L280 TraceCheckUtils]: 22: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 23:38:11,072 INFO L280 TraceCheckUtils]: 23: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 23:38:11,072 INFO L280 TraceCheckUtils]: 24: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 23:38:11,074 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #147#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,074 INFO L263 TraceCheckUtils]: 26: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {1866#true} is VALID [2020-07-08 23:38:11,075 INFO L280 TraceCheckUtils]: 27: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 23:38:11,075 INFO L280 TraceCheckUtils]: 28: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 23:38:11,076 INFO L280 TraceCheckUtils]: 29: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 23:38:11,077 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #149#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:11,078 INFO L263 TraceCheckUtils]: 31: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {1880#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:11,079 INFO L280 TraceCheckUtils]: 32: Hoare triple {1880#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1881#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:11,081 INFO L280 TraceCheckUtils]: 33: Hoare triple {1881#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1867#false} is VALID [2020-07-08 23:38:11,082 INFO L280 TraceCheckUtils]: 34: Hoare triple {1867#false} assume !false; {1867#false} is VALID [2020-07-08 23:38:11,084 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 23:38:11,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [563950092] [2020-07-08 23:38:11,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:11,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 23:38:11,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614083381] [2020-07-08 23:38:11,086 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-08 23:38:11,086 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:11,086 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 23:38:11,126 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:11,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 23:38:11,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:11,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 23:38:11,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-08 23:38:11,128 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand 6 states. [2020-07-08 23:38:11,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:11,786 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2020-07-08 23:38:11,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 23:38:11,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-08 23:38:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 23:38:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-08 23:38:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 23:38:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-08 23:38:11,792 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 91 transitions. [2020-07-08 23:38:11,897 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:11,902 INFO L225 Difference]: With dead ends: 106 [2020-07-08 23:38:11,902 INFO L226 Difference]: Without dead ends: 104 [2020-07-08 23:38:11,904 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-08 23:38:11,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-07-08 23:38:12,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-07-08 23:38:12,075 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:12,076 INFO L82 GeneralOperation]: Start isEquivalent. First operand 104 states. Second operand 104 states. [2020-07-08 23:38:12,076 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-08 23:38:12,076 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-08 23:38:12,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:12,083 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-08 23:38:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-08 23:38:12,084 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:12,084 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:12,084 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-08 23:38:12,085 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-08 23:38:12,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:12,090 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-08 23:38:12,091 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-08 23:38:12,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:12,091 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:12,092 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:12,092 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:12,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-08 23:38:12,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-07-08 23:38:12,097 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 35 [2020-07-08 23:38:12,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:12,098 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-07-08 23:38:12,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 23:38:12,098 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 128 transitions. [2020-07-08 23:38:12,276 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:12,276 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-08 23:38:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-08 23:38:12,278 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:12,278 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 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, 1, 1, 1, 1] [2020-07-08 23:38:12,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 23:38:12,278 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:12,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:12,279 INFO L82 PathProgramCache]: Analyzing trace with hash 364478305, now seen corresponding path program 1 times [2020-07-08 23:38:12,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:12,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [7774958] [2020-07-08 23:38:12,280 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:12,345 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,345 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-08 23:38:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:12,357 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 23:38:12,357 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 23:38:12,358 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,369 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:12,377 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 23:38:12,377 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 23:38:12,378 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,378 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:12,385 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 23:38:12,386 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 23:38:12,386 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,386 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,387 INFO L263 TraceCheckUtils]: 0: Hoare triple {2516#true} call ULTIMATE.init(); {2516#true} is VALID [2020-07-08 23:38:12,387 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,387 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-08 23:38:12,387 INFO L263 TraceCheckUtils]: 3: Hoare triple {2516#true} call #t~ret10 := main(); {2516#true} is VALID [2020-07-08 23:38:12,387 INFO L280 TraceCheckUtils]: 4: Hoare triple {2516#true} havoc ~len~0; {2516#true} is VALID [2020-07-08 23:38:12,388 INFO L280 TraceCheckUtils]: 5: Hoare triple {2516#true} havoc ~i~0; {2516#true} is VALID [2020-07-08 23:38:12,388 INFO L280 TraceCheckUtils]: 6: Hoare triple {2516#true} havoc ~j~0; {2516#true} is VALID [2020-07-08 23:38:12,388 INFO L280 TraceCheckUtils]: 7: Hoare triple {2516#true} havoc ~bufsize~0; {2516#true} is VALID [2020-07-08 23:38:12,388 INFO L280 TraceCheckUtils]: 8: Hoare triple {2516#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2516#true} is VALID [2020-07-08 23:38:12,388 INFO L280 TraceCheckUtils]: 9: Hoare triple {2516#true} ~bufsize~0 := #t~nondet0; {2516#true} is VALID [2020-07-08 23:38:12,388 INFO L280 TraceCheckUtils]: 10: Hoare triple {2516#true} havoc #t~nondet0; {2516#true} is VALID [2020-07-08 23:38:12,389 INFO L280 TraceCheckUtils]: 11: Hoare triple {2516#true} assume !(~bufsize~0 < 0); {2516#true} is VALID [2020-07-08 23:38:12,389 INFO L280 TraceCheckUtils]: 12: Hoare triple {2516#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2516#true} is VALID [2020-07-08 23:38:12,389 INFO L280 TraceCheckUtils]: 13: Hoare triple {2516#true} ~len~0 := #t~nondet1; {2516#true} is VALID [2020-07-08 23:38:12,389 INFO L280 TraceCheckUtils]: 14: Hoare triple {2516#true} havoc #t~nondet1; {2516#true} is VALID [2020-07-08 23:38:12,389 INFO L280 TraceCheckUtils]: 15: Hoare triple {2516#true} ~limit~0 := ~bufsize~0 - 4; {2516#true} is VALID [2020-07-08 23:38:12,390 INFO L280 TraceCheckUtils]: 16: Hoare triple {2516#true} ~i~0 := 0; {2516#true} is VALID [2020-07-08 23:38:12,390 INFO L280 TraceCheckUtils]: 17: Hoare triple {2516#true} assume !!(~i~0 < ~len~0); {2516#true} is VALID [2020-07-08 23:38:12,390 INFO L280 TraceCheckUtils]: 18: Hoare triple {2516#true} ~j~0 := 0; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,391 INFO L280 TraceCheckUtils]: 19: Hoare triple {2520#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,391 INFO L280 TraceCheckUtils]: 20: Hoare triple {2520#(<= 0 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,391 INFO L263 TraceCheckUtils]: 21: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {2516#true} is VALID [2020-07-08 23:38:12,391 INFO L280 TraceCheckUtils]: 22: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 23:38:12,392 INFO L280 TraceCheckUtils]: 23: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 23:38:12,392 INFO L280 TraceCheckUtils]: 24: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,398 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,399 INFO L263 TraceCheckUtils]: 26: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {2516#true} is VALID [2020-07-08 23:38:12,399 INFO L280 TraceCheckUtils]: 27: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 23:38:12,399 INFO L280 TraceCheckUtils]: 28: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 23:38:12,399 INFO L280 TraceCheckUtils]: 29: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,400 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,400 INFO L263 TraceCheckUtils]: 31: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {2516#true} is VALID [2020-07-08 23:38:12,400 INFO L280 TraceCheckUtils]: 32: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 23:38:12,400 INFO L280 TraceCheckUtils]: 33: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 23:38:12,401 INFO L280 TraceCheckUtils]: 34: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 23:38:12,401 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:12,402 INFO L263 TraceCheckUtils]: 36: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {2533#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:12,402 INFO L280 TraceCheckUtils]: 37: Hoare triple {2533#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {2534#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:12,403 INFO L280 TraceCheckUtils]: 38: Hoare triple {2534#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {2517#false} is VALID [2020-07-08 23:38:12,403 INFO L280 TraceCheckUtils]: 39: Hoare triple {2517#false} assume !false; {2517#false} is VALID [2020-07-08 23:38:12,405 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-08 23:38:12,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [7774958] [2020-07-08 23:38:12,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:12,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:38:12,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072475168] [2020-07-08 23:38:12,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-08 23:38:12,408 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:12,408 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:38:12,448 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:12,448 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:38:12,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:12,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:38:12,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:38:12,449 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 5 states. [2020-07-08 23:38:13,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:13,056 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-07-08 23:38:13,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:38:13,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-08 23:38:13,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:13,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:13,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-08 23:38:13,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:13,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-08 23:38:13,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 126 transitions. [2020-07-08 23:38:13,202 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:13,207 INFO L225 Difference]: With dead ends: 135 [2020-07-08 23:38:13,207 INFO L226 Difference]: Without dead ends: 133 [2020-07-08 23:38:13,208 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 23:38:13,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-08 23:38:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-07-08 23:38:13,467 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:13,467 INFO L82 GeneralOperation]: Start isEquivalent. First operand 133 states. Second operand 125 states. [2020-07-08 23:38:13,467 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 125 states. [2020-07-08 23:38:13,468 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 125 states. [2020-07-08 23:38:13,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:13,476 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-08 23:38:13,476 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-08 23:38:13,477 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:13,477 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:13,477 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 133 states. [2020-07-08 23:38:13,477 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 133 states. [2020-07-08 23:38:13,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:13,485 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-08 23:38:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-08 23:38:13,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:13,487 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:13,487 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:13,487 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:13,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-08 23:38:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2020-07-08 23:38:13,494 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 40 [2020-07-08 23:38:13,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:13,495 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2020-07-08 23:38:13,495 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:38:13,495 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 125 states and 162 transitions. [2020-07-08 23:38:13,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-07-08 23:38:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-08 23:38:13,734 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:13,734 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:13,734 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 23:38:13,735 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:13,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:13,735 INFO L82 PathProgramCache]: Analyzing trace with hash 914533499, now seen corresponding path program 1 times [2020-07-08 23:38:13,735 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:13,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41149771] [2020-07-08 23:38:13,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:13,822 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,822 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-08 23:38:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:13,836 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,837 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,837 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,840 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #147#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:13,848 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,848 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,848 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,849 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #149#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:13,864 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,865 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,865 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,866 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #151#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:13,891 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,892 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,892 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,893 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #153#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:13,912 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,912 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,912 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,913 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-08 23:38:13,913 INFO L263 TraceCheckUtils]: 0: Hoare triple {3325#true} call ULTIMATE.init(); {3325#true} is VALID [2020-07-08 23:38:13,913 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,914 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-08 23:38:13,914 INFO L263 TraceCheckUtils]: 3: Hoare triple {3325#true} call #t~ret10 := main(); {3325#true} is VALID [2020-07-08 23:38:13,914 INFO L280 TraceCheckUtils]: 4: Hoare triple {3325#true} havoc ~len~0; {3325#true} is VALID [2020-07-08 23:38:13,915 INFO L280 TraceCheckUtils]: 5: Hoare triple {3325#true} havoc ~i~0; {3325#true} is VALID [2020-07-08 23:38:13,915 INFO L280 TraceCheckUtils]: 6: Hoare triple {3325#true} havoc ~j~0; {3325#true} is VALID [2020-07-08 23:38:13,915 INFO L280 TraceCheckUtils]: 7: Hoare triple {3325#true} havoc ~bufsize~0; {3325#true} is VALID [2020-07-08 23:38:13,916 INFO L280 TraceCheckUtils]: 8: Hoare triple {3325#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3325#true} is VALID [2020-07-08 23:38:13,916 INFO L280 TraceCheckUtils]: 9: Hoare triple {3325#true} ~bufsize~0 := #t~nondet0; {3325#true} is VALID [2020-07-08 23:38:13,916 INFO L280 TraceCheckUtils]: 10: Hoare triple {3325#true} havoc #t~nondet0; {3325#true} is VALID [2020-07-08 23:38:13,917 INFO L280 TraceCheckUtils]: 11: Hoare triple {3325#true} assume !(~bufsize~0 < 0); {3325#true} is VALID [2020-07-08 23:38:13,917 INFO L280 TraceCheckUtils]: 12: Hoare triple {3325#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {3325#true} is VALID [2020-07-08 23:38:13,917 INFO L280 TraceCheckUtils]: 13: Hoare triple {3325#true} ~len~0 := #t~nondet1; {3325#true} is VALID [2020-07-08 23:38:13,918 INFO L280 TraceCheckUtils]: 14: Hoare triple {3325#true} havoc #t~nondet1; {3325#true} is VALID [2020-07-08 23:38:13,918 INFO L280 TraceCheckUtils]: 15: Hoare triple {3325#true} ~limit~0 := ~bufsize~0 - 4; {3325#true} is VALID [2020-07-08 23:38:13,919 INFO L280 TraceCheckUtils]: 16: Hoare triple {3325#true} ~i~0 := 0; {3325#true} is VALID [2020-07-08 23:38:13,919 INFO L280 TraceCheckUtils]: 17: Hoare triple {3325#true} assume !!(~i~0 < ~len~0); {3325#true} is VALID [2020-07-08 23:38:13,920 INFO L280 TraceCheckUtils]: 18: Hoare triple {3325#true} ~j~0 := 0; {3325#true} is VALID [2020-07-08 23:38:13,920 INFO L280 TraceCheckUtils]: 19: Hoare triple {3325#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {3325#true} is VALID [2020-07-08 23:38:13,921 INFO L280 TraceCheckUtils]: 20: Hoare triple {3325#true} assume !(1 + ~i~0 < ~len~0); {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,922 INFO L263 TraceCheckUtils]: 21: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 23:38:13,922 INFO L280 TraceCheckUtils]: 22: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,922 INFO L280 TraceCheckUtils]: 23: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,923 INFO L280 TraceCheckUtils]: 24: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,924 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #147#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,924 INFO L263 TraceCheckUtils]: 26: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 23:38:13,925 INFO L280 TraceCheckUtils]: 27: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,925 INFO L280 TraceCheckUtils]: 28: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,925 INFO L280 TraceCheckUtils]: 29: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,926 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #149#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,927 INFO L263 TraceCheckUtils]: 31: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 23:38:13,927 INFO L280 TraceCheckUtils]: 32: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,927 INFO L280 TraceCheckUtils]: 33: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,927 INFO L280 TraceCheckUtils]: 34: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,928 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #151#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,929 INFO L263 TraceCheckUtils]: 36: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 23:38:13,929 INFO L280 TraceCheckUtils]: 37: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,929 INFO L280 TraceCheckUtils]: 38: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,929 INFO L280 TraceCheckUtils]: 39: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,931 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #153#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,932 INFO L280 TraceCheckUtils]: 41: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} #t~post8 := ~j~0; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,935 INFO L280 TraceCheckUtils]: 42: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} ~j~0 := 1 + #t~post8; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,939 INFO L280 TraceCheckUtils]: 43: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} havoc #t~post8; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 23:38:13,945 INFO L280 TraceCheckUtils]: 44: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} #t~post9 := ~i~0; {3346#(<= main_~len~0 (+ |main_#t~post9| 1))} is VALID [2020-07-08 23:38:13,949 INFO L280 TraceCheckUtils]: 45: Hoare triple {3346#(<= main_~len~0 (+ |main_#t~post9| 1))} ~i~0 := 1 + #t~post9; {3347#(<= main_~len~0 main_~i~0)} is VALID [2020-07-08 23:38:13,950 INFO L280 TraceCheckUtils]: 46: Hoare triple {3347#(<= main_~len~0 main_~i~0)} havoc #t~post9; {3347#(<= main_~len~0 main_~i~0)} is VALID [2020-07-08 23:38:13,950 INFO L280 TraceCheckUtils]: 47: Hoare triple {3347#(<= main_~len~0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {3347#(<= main_~len~0 main_~i~0)} is VALID [2020-07-08 23:38:13,951 INFO L280 TraceCheckUtils]: 48: Hoare triple {3347#(<= main_~len~0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {3326#false} is VALID [2020-07-08 23:38:13,952 INFO L263 TraceCheckUtils]: 49: Hoare triple {3326#false} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 23:38:13,952 INFO L280 TraceCheckUtils]: 50: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 23:38:13,952 INFO L280 TraceCheckUtils]: 51: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 23:38:13,952 INFO L280 TraceCheckUtils]: 52: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 23:38:13,953 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-08 23:38:13,953 INFO L263 TraceCheckUtils]: 54: Hoare triple {3326#false} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {3326#false} is VALID [2020-07-08 23:38:13,953 INFO L280 TraceCheckUtils]: 55: Hoare triple {3326#false} ~cond := #in~cond; {3326#false} is VALID [2020-07-08 23:38:13,954 INFO L280 TraceCheckUtils]: 56: Hoare triple {3326#false} assume 0 == ~cond; {3326#false} is VALID [2020-07-08 23:38:13,954 INFO L280 TraceCheckUtils]: 57: Hoare triple {3326#false} assume !false; {3326#false} is VALID [2020-07-08 23:38:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-08 23:38:13,960 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41149771] [2020-07-08 23:38:13,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:13,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 23:38:13,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630231463] [2020-07-08 23:38:13,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-08 23:38:13,963 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:13,963 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 23:38:14,025 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:14,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 23:38:14,025 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:14,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 23:38:14,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 23:38:14,026 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand 5 states. [2020-07-08 23:38:14,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:14,605 INFO L93 Difference]: Finished difference Result 229 states and 302 transitions. [2020-07-08 23:38:14,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 23:38:14,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-08 23:38:14,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:14,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:14,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-08 23:38:14,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 23:38:14,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-08 23:38:14,620 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 172 transitions. [2020-07-08 23:38:14,789 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 172 edges. 172 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:14,796 INFO L225 Difference]: With dead ends: 229 [2020-07-08 23:38:14,796 INFO L226 Difference]: Without dead ends: 128 [2020-07-08 23:38:14,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-08 23:38:14,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-08 23:38:15,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-08 23:38:15,039 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:15,040 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 128 states. [2020-07-08 23:38:15,040 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-08 23:38:15,040 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-08 23:38:15,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:15,046 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-08 23:38:15,046 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-08 23:38:15,047 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:15,048 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:15,048 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-08 23:38:15,048 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-08 23:38:15,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:15,055 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-08 23:38:15,055 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-08 23:38:15,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:15,056 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:15,056 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:15,057 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-08 23:38:15,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 165 transitions. [2020-07-08 23:38:15,063 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 165 transitions. Word has length 58 [2020-07-08 23:38:15,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:15,063 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 165 transitions. [2020-07-08 23:38:15,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 23:38:15,063 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 128 states and 165 transitions. [2020-07-08 23:38:15,320 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:15,320 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-08 23:38:15,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-08 23:38:15,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:15,322 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:15,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 23:38:15,323 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:15,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:15,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1807369608, now seen corresponding path program 1 times [2020-07-08 23:38:15,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:15,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [820674992] [2020-07-08 23:38:15,324 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:15,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,431 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,431 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-08 23:38:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,438 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,438 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,439 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,440 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #123#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,446 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,446 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,447 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,447 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #125#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,454 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,455 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,455 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,456 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #127#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,462 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,462 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,462 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,463 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #129#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,469 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,470 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,470 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,471 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #131#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:15,478 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,478 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,479 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,479 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #133#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,480 INFO L263 TraceCheckUtils]: 0: Hoare triple {4328#true} call ULTIMATE.init(); {4328#true} is VALID [2020-07-08 23:38:15,480 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,480 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-08 23:38:15,481 INFO L263 TraceCheckUtils]: 3: Hoare triple {4328#true} call #t~ret10 := main(); {4328#true} is VALID [2020-07-08 23:38:15,481 INFO L280 TraceCheckUtils]: 4: Hoare triple {4328#true} havoc ~len~0; {4328#true} is VALID [2020-07-08 23:38:15,481 INFO L280 TraceCheckUtils]: 5: Hoare triple {4328#true} havoc ~i~0; {4328#true} is VALID [2020-07-08 23:38:15,481 INFO L280 TraceCheckUtils]: 6: Hoare triple {4328#true} havoc ~j~0; {4328#true} is VALID [2020-07-08 23:38:15,482 INFO L280 TraceCheckUtils]: 7: Hoare triple {4328#true} havoc ~bufsize~0; {4328#true} is VALID [2020-07-08 23:38:15,482 INFO L280 TraceCheckUtils]: 8: Hoare triple {4328#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4328#true} is VALID [2020-07-08 23:38:15,482 INFO L280 TraceCheckUtils]: 9: Hoare triple {4328#true} ~bufsize~0 := #t~nondet0; {4328#true} is VALID [2020-07-08 23:38:15,482 INFO L280 TraceCheckUtils]: 10: Hoare triple {4328#true} havoc #t~nondet0; {4328#true} is VALID [2020-07-08 23:38:15,483 INFO L280 TraceCheckUtils]: 11: Hoare triple {4328#true} assume !(~bufsize~0 < 0); {4328#true} is VALID [2020-07-08 23:38:15,483 INFO L280 TraceCheckUtils]: 12: Hoare triple {4328#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4328#true} is VALID [2020-07-08 23:38:15,483 INFO L280 TraceCheckUtils]: 13: Hoare triple {4328#true} ~len~0 := #t~nondet1; {4328#true} is VALID [2020-07-08 23:38:15,483 INFO L280 TraceCheckUtils]: 14: Hoare triple {4328#true} havoc #t~nondet1; {4328#true} is VALID [2020-07-08 23:38:15,484 INFO L280 TraceCheckUtils]: 15: Hoare triple {4328#true} ~limit~0 := ~bufsize~0 - 4; {4328#true} is VALID [2020-07-08 23:38:15,484 INFO L280 TraceCheckUtils]: 16: Hoare triple {4328#true} ~i~0 := 0; {4328#true} is VALID [2020-07-08 23:38:15,484 INFO L280 TraceCheckUtils]: 17: Hoare triple {4328#true} assume !!(~i~0 < ~len~0); {4328#true} is VALID [2020-07-08 23:38:15,484 INFO L280 TraceCheckUtils]: 18: Hoare triple {4328#true} ~j~0 := 0; {4328#true} is VALID [2020-07-08 23:38:15,484 INFO L280 TraceCheckUtils]: 19: Hoare triple {4328#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {4328#true} is VALID [2020-07-08 23:38:15,485 INFO L280 TraceCheckUtils]: 20: Hoare triple {4328#true} assume 1 + ~i~0 < ~len~0; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,486 INFO L263 TraceCheckUtils]: 21: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 23:38:15,486 INFO L280 TraceCheckUtils]: 22: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,486 INFO L280 TraceCheckUtils]: 23: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,486 INFO L280 TraceCheckUtils]: 24: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,487 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #123#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,487 INFO L263 TraceCheckUtils]: 26: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 23:38:15,488 INFO L280 TraceCheckUtils]: 27: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,488 INFO L280 TraceCheckUtils]: 28: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,488 INFO L280 TraceCheckUtils]: 29: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,489 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #125#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,490 INFO L280 TraceCheckUtils]: 31: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,490 INFO L280 TraceCheckUtils]: 32: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} assume !(0 != #t~nondet2); {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,491 INFO L280 TraceCheckUtils]: 33: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} havoc #t~nondet2; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,491 INFO L263 TraceCheckUtils]: 34: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 23:38:15,492 INFO L280 TraceCheckUtils]: 35: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,492 INFO L280 TraceCheckUtils]: 36: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,492 INFO L280 TraceCheckUtils]: 37: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,493 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #127#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,493 INFO L263 TraceCheckUtils]: 39: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 23:38:15,493 INFO L280 TraceCheckUtils]: 40: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,494 INFO L280 TraceCheckUtils]: 41: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,494 INFO L280 TraceCheckUtils]: 42: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,495 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #129#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,495 INFO L263 TraceCheckUtils]: 44: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 23:38:15,495 INFO L280 TraceCheckUtils]: 45: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,496 INFO L280 TraceCheckUtils]: 46: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,496 INFO L280 TraceCheckUtils]: 47: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,497 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #131#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,497 INFO L263 TraceCheckUtils]: 49: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 23:38:15,497 INFO L280 TraceCheckUtils]: 50: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 23:38:15,498 INFO L280 TraceCheckUtils]: 51: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 23:38:15,498 INFO L280 TraceCheckUtils]: 52: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 23:38:15,499 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #133#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,499 INFO L280 TraceCheckUtils]: 54: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} #t~post3 := ~j~0; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,500 INFO L280 TraceCheckUtils]: 55: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} ~j~0 := 1 + #t~post3; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,501 INFO L280 TraceCheckUtils]: 56: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} havoc #t~post3; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,502 INFO L280 TraceCheckUtils]: 57: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} #t~post4 := ~i~0; {4357#(<= (+ |main_#t~post4| 2) main_~len~0)} is VALID [2020-07-08 23:38:15,503 INFO L280 TraceCheckUtils]: 58: Hoare triple {4357#(<= (+ |main_#t~post4| 2) main_~len~0)} ~i~0 := 1 + #t~post4; {4358#(<= (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,503 INFO L280 TraceCheckUtils]: 59: Hoare triple {4358#(<= (+ main_~i~0 1) main_~len~0)} havoc #t~post4; {4358#(<= (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 23:38:15,505 INFO L263 TraceCheckUtils]: 60: Hoare triple {4358#(<= (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {4359#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:15,505 INFO L280 TraceCheckUtils]: 61: Hoare triple {4359#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {4360#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:15,506 INFO L280 TraceCheckUtils]: 62: Hoare triple {4360#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {4329#false} is VALID [2020-07-08 23:38:15,506 INFO L280 TraceCheckUtils]: 63: Hoare triple {4329#false} assume !false; {4329#false} is VALID [2020-07-08 23:38:15,510 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-08 23:38:15,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [820674992] [2020-07-08 23:38:15,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:15,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 23:38:15,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384544419] [2020-07-08 23:38:15,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-08 23:38:15,512 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:15,513 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 23:38:15,571 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:15,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 23:38:15,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:15,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 23:38:15,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 23:38:15,572 INFO L87 Difference]: Start difference. First operand 128 states and 165 transitions. Second operand 7 states. [2020-07-08 23:38:16,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:16,419 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2020-07-08 23:38:16,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 23:38:16,419 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-08 23:38:16,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:16,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:16,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-08 23:38:16,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:16,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-08 23:38:16,425 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 101 transitions. [2020-07-08 23:38:16,537 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:16,541 INFO L225 Difference]: With dead ends: 136 [2020-07-08 23:38:16,541 INFO L226 Difference]: Without dead ends: 134 [2020-07-08 23:38:16,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 23:38:16,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-08 23:38:16,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-07-08 23:38:16,764 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:16,764 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 132 states. [2020-07-08 23:38:16,764 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 132 states. [2020-07-08 23:38:16,764 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 132 states. [2020-07-08 23:38:16,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:16,770 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-08 23:38:16,771 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-08 23:38:16,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:16,772 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:16,772 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 134 states. [2020-07-08 23:38:16,772 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 134 states. [2020-07-08 23:38:16,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:16,779 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-08 23:38:16,779 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-08 23:38:16,780 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:16,780 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:16,780 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:16,780 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:16,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-08 23:38:16,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2020-07-08 23:38:16,786 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 64 [2020-07-08 23:38:16,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:16,787 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2020-07-08 23:38:16,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 23:38:16,787 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 132 states and 168 transitions. [2020-07-08 23:38:17,039 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:17,040 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2020-07-08 23:38:17,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-08 23:38:17,040 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:17,041 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:17,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 23:38:17,041 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:17,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:17,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1715909932, now seen corresponding path program 1 times [2020-07-08 23:38:17,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:17,042 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470846241] [2020-07-08 23:38:17,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:17,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,150 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,150 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-08 23:38:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,159 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,159 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,159 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,160 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,166 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,167 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,167 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,168 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,173 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,173 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,173 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,174 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,179 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,179 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,179 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,180 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,185 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,185 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,186 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,186 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,191 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,192 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,192 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,193 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:17,198 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,198 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,198 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,199 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:17,199 INFO L263 TraceCheckUtils]: 0: Hoare triple {5173#true} call ULTIMATE.init(); {5173#true} is VALID [2020-07-08 23:38:17,200 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,200 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-08 23:38:17,200 INFO L263 TraceCheckUtils]: 3: Hoare triple {5173#true} call #t~ret10 := main(); {5173#true} is VALID [2020-07-08 23:38:17,200 INFO L280 TraceCheckUtils]: 4: Hoare triple {5173#true} havoc ~len~0; {5173#true} is VALID [2020-07-08 23:38:17,200 INFO L280 TraceCheckUtils]: 5: Hoare triple {5173#true} havoc ~i~0; {5173#true} is VALID [2020-07-08 23:38:17,201 INFO L280 TraceCheckUtils]: 6: Hoare triple {5173#true} havoc ~j~0; {5173#true} is VALID [2020-07-08 23:38:17,201 INFO L280 TraceCheckUtils]: 7: Hoare triple {5173#true} havoc ~bufsize~0; {5173#true} is VALID [2020-07-08 23:38:17,201 INFO L280 TraceCheckUtils]: 8: Hoare triple {5173#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {5173#true} is VALID [2020-07-08 23:38:17,201 INFO L280 TraceCheckUtils]: 9: Hoare triple {5173#true} ~bufsize~0 := #t~nondet0; {5173#true} is VALID [2020-07-08 23:38:17,201 INFO L280 TraceCheckUtils]: 10: Hoare triple {5173#true} havoc #t~nondet0; {5173#true} is VALID [2020-07-08 23:38:17,202 INFO L280 TraceCheckUtils]: 11: Hoare triple {5173#true} assume !(~bufsize~0 < 0); {5173#true} is VALID [2020-07-08 23:38:17,202 INFO L280 TraceCheckUtils]: 12: Hoare triple {5173#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {5173#true} is VALID [2020-07-08 23:38:17,202 INFO L280 TraceCheckUtils]: 13: Hoare triple {5173#true} ~len~0 := #t~nondet1; {5173#true} is VALID [2020-07-08 23:38:17,202 INFO L280 TraceCheckUtils]: 14: Hoare triple {5173#true} havoc #t~nondet1; {5173#true} is VALID [2020-07-08 23:38:17,202 INFO L280 TraceCheckUtils]: 15: Hoare triple {5173#true} ~limit~0 := ~bufsize~0 - 4; {5173#true} is VALID [2020-07-08 23:38:17,203 INFO L280 TraceCheckUtils]: 16: Hoare triple {5173#true} ~i~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,204 INFO L280 TraceCheckUtils]: 17: Hoare triple {5177#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,204 INFO L280 TraceCheckUtils]: 18: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,205 INFO L280 TraceCheckUtils]: 19: Hoare triple {5177#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,205 INFO L280 TraceCheckUtils]: 20: Hoare triple {5177#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,205 INFO L263 TraceCheckUtils]: 21: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 23:38:17,206 INFO L280 TraceCheckUtils]: 22: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,206 INFO L280 TraceCheckUtils]: 23: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,206 INFO L280 TraceCheckUtils]: 24: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,207 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,207 INFO L263 TraceCheckUtils]: 26: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 23:38:17,207 INFO L280 TraceCheckUtils]: 27: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,207 INFO L280 TraceCheckUtils]: 28: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,208 INFO L280 TraceCheckUtils]: 29: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,208 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,209 INFO L280 TraceCheckUtils]: 31: Hoare triple {5177#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,209 INFO L280 TraceCheckUtils]: 32: Hoare triple {5177#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,210 INFO L280 TraceCheckUtils]: 33: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~nondet2; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,210 INFO L263 TraceCheckUtils]: 34: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 23:38:17,210 INFO L280 TraceCheckUtils]: 35: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,211 INFO L280 TraceCheckUtils]: 36: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,211 INFO L280 TraceCheckUtils]: 37: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,212 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,212 INFO L263 TraceCheckUtils]: 39: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 23:38:17,212 INFO L280 TraceCheckUtils]: 40: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,212 INFO L280 TraceCheckUtils]: 41: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,212 INFO L280 TraceCheckUtils]: 42: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,213 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,213 INFO L263 TraceCheckUtils]: 44: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 23:38:17,214 INFO L280 TraceCheckUtils]: 45: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,214 INFO L280 TraceCheckUtils]: 46: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,214 INFO L280 TraceCheckUtils]: 47: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,215 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,215 INFO L263 TraceCheckUtils]: 49: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 23:38:17,215 INFO L280 TraceCheckUtils]: 50: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,215 INFO L280 TraceCheckUtils]: 51: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,216 INFO L280 TraceCheckUtils]: 52: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,216 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,217 INFO L280 TraceCheckUtils]: 54: Hoare triple {5177#(<= 0 main_~i~0)} #t~post3 := ~j~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,218 INFO L280 TraceCheckUtils]: 55: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,218 INFO L280 TraceCheckUtils]: 56: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:17,219 INFO L280 TraceCheckUtils]: 57: Hoare triple {5177#(<= 0 main_~i~0)} #t~post4 := ~i~0; {5202#(<= 0 |main_#t~post4|)} is VALID [2020-07-08 23:38:17,219 INFO L280 TraceCheckUtils]: 58: Hoare triple {5202#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:17,220 INFO L280 TraceCheckUtils]: 59: Hoare triple {5203#(<= 1 main_~i~0)} havoc #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:17,220 INFO L263 TraceCheckUtils]: 60: Hoare triple {5203#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 23:38:17,220 INFO L280 TraceCheckUtils]: 61: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 23:38:17,221 INFO L280 TraceCheckUtils]: 62: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 23:38:17,221 INFO L280 TraceCheckUtils]: 63: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 23:38:17,222 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:17,223 INFO L263 TraceCheckUtils]: 65: Hoare triple {5203#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {5208#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:17,223 INFO L280 TraceCheckUtils]: 66: Hoare triple {5208#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {5209#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:17,224 INFO L280 TraceCheckUtils]: 67: Hoare triple {5209#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {5174#false} is VALID [2020-07-08 23:38:17,224 INFO L280 TraceCheckUtils]: 68: Hoare triple {5174#false} assume !false; {5174#false} is VALID [2020-07-08 23:38:17,227 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-08 23:38:17,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1470846241] [2020-07-08 23:38:17,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:17,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 23:38:17,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965588641] [2020-07-08 23:38:17,229 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-08 23:38:17,229 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:17,229 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 23:38:17,282 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:17,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 23:38:17,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:17,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 23:38:17,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 23:38:17,283 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand 7 states. [2020-07-08 23:38:18,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:18,243 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2020-07-08 23:38:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 23:38:18,244 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-08 23:38:18,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-08 23:38:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:18,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-08 23:38:18,253 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 145 transitions. [2020-07-08 23:38:18,410 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:18,415 INFO L225 Difference]: With dead ends: 162 [2020-07-08 23:38:18,415 INFO L226 Difference]: Without dead ends: 160 [2020-07-08 23:38:18,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 23:38:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-08 23:38:18,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2020-07-08 23:38:18,678 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:18,678 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 146 states. [2020-07-08 23:38:18,678 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 146 states. [2020-07-08 23:38:18,678 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 146 states. [2020-07-08 23:38:18,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:18,687 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-08 23:38:18,687 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-08 23:38:18,688 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:18,688 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:18,688 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 160 states. [2020-07-08 23:38:18,688 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 160 states. [2020-07-08 23:38:18,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:18,696 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-08 23:38:18,696 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-08 23:38:18,697 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:18,697 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:18,697 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:18,697 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:18,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-08 23:38:18,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2020-07-08 23:38:18,705 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 69 [2020-07-08 23:38:18,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:18,705 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2020-07-08 23:38:18,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 23:38:18,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 146 states and 185 transitions. [2020-07-08 23:38:18,978 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:18,978 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2020-07-08 23:38:18,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 23:38:18,980 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:18,980 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:18,981 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 23:38:18,981 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:18,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:18,982 INFO L82 PathProgramCache]: Analyzing trace with hash -1298936315, now seen corresponding path program 1 times [2020-07-08 23:38:18,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:18,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266825929] [2020-07-08 23:38:18,982 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,065 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,066 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-08 23:38:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,074 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,074 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,075 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,075 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,083 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,083 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,083 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,085 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,092 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,093 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,093 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,094 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,098 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,098 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,099 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,099 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,104 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,105 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,105 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,106 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,111 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,111 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,111 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,112 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:19,117 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,117 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,117 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,118 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:19,118 INFO L263 TraceCheckUtils]: 0: Hoare triple {6154#true} call ULTIMATE.init(); {6154#true} is VALID [2020-07-08 23:38:19,119 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,119 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-08 23:38:19,119 INFO L263 TraceCheckUtils]: 3: Hoare triple {6154#true} call #t~ret10 := main(); {6154#true} is VALID [2020-07-08 23:38:19,119 INFO L280 TraceCheckUtils]: 4: Hoare triple {6154#true} havoc ~len~0; {6154#true} is VALID [2020-07-08 23:38:19,119 INFO L280 TraceCheckUtils]: 5: Hoare triple {6154#true} havoc ~i~0; {6154#true} is VALID [2020-07-08 23:38:19,119 INFO L280 TraceCheckUtils]: 6: Hoare triple {6154#true} havoc ~j~0; {6154#true} is VALID [2020-07-08 23:38:19,120 INFO L280 TraceCheckUtils]: 7: Hoare triple {6154#true} havoc ~bufsize~0; {6154#true} is VALID [2020-07-08 23:38:19,120 INFO L280 TraceCheckUtils]: 8: Hoare triple {6154#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6154#true} is VALID [2020-07-08 23:38:19,120 INFO L280 TraceCheckUtils]: 9: Hoare triple {6154#true} ~bufsize~0 := #t~nondet0; {6154#true} is VALID [2020-07-08 23:38:19,120 INFO L280 TraceCheckUtils]: 10: Hoare triple {6154#true} havoc #t~nondet0; {6154#true} is VALID [2020-07-08 23:38:19,120 INFO L280 TraceCheckUtils]: 11: Hoare triple {6154#true} assume !(~bufsize~0 < 0); {6154#true} is VALID [2020-07-08 23:38:19,121 INFO L280 TraceCheckUtils]: 12: Hoare triple {6154#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6154#true} is VALID [2020-07-08 23:38:19,121 INFO L280 TraceCheckUtils]: 13: Hoare triple {6154#true} ~len~0 := #t~nondet1; {6154#true} is VALID [2020-07-08 23:38:19,121 INFO L280 TraceCheckUtils]: 14: Hoare triple {6154#true} havoc #t~nondet1; {6154#true} is VALID [2020-07-08 23:38:19,121 INFO L280 TraceCheckUtils]: 15: Hoare triple {6154#true} ~limit~0 := ~bufsize~0 - 4; {6154#true} is VALID [2020-07-08 23:38:19,122 INFO L280 TraceCheckUtils]: 16: Hoare triple {6154#true} ~i~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,123 INFO L280 TraceCheckUtils]: 17: Hoare triple {6158#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,123 INFO L280 TraceCheckUtils]: 18: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,124 INFO L280 TraceCheckUtils]: 19: Hoare triple {6158#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,125 INFO L280 TraceCheckUtils]: 20: Hoare triple {6158#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,125 INFO L263 TraceCheckUtils]: 21: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 23:38:19,125 INFO L280 TraceCheckUtils]: 22: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,125 INFO L280 TraceCheckUtils]: 23: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,126 INFO L280 TraceCheckUtils]: 24: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,127 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,127 INFO L263 TraceCheckUtils]: 26: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 23:38:19,127 INFO L280 TraceCheckUtils]: 27: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,127 INFO L280 TraceCheckUtils]: 28: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,127 INFO L280 TraceCheckUtils]: 29: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,128 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,129 INFO L280 TraceCheckUtils]: 31: Hoare triple {6158#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,129 INFO L280 TraceCheckUtils]: 32: Hoare triple {6158#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,130 INFO L280 TraceCheckUtils]: 33: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,130 INFO L263 TraceCheckUtils]: 34: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 23:38:19,130 INFO L280 TraceCheckUtils]: 35: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,131 INFO L280 TraceCheckUtils]: 36: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,131 INFO L280 TraceCheckUtils]: 37: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,131 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,132 INFO L263 TraceCheckUtils]: 39: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 23:38:19,132 INFO L280 TraceCheckUtils]: 40: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,132 INFO L280 TraceCheckUtils]: 41: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,132 INFO L280 TraceCheckUtils]: 42: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,133 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,133 INFO L263 TraceCheckUtils]: 44: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 23:38:19,133 INFO L280 TraceCheckUtils]: 45: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,133 INFO L280 TraceCheckUtils]: 46: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,134 INFO L280 TraceCheckUtils]: 47: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,134 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,135 INFO L263 TraceCheckUtils]: 49: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 23:38:19,135 INFO L280 TraceCheckUtils]: 50: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,135 INFO L280 TraceCheckUtils]: 51: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,135 INFO L280 TraceCheckUtils]: 52: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,136 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,137 INFO L280 TraceCheckUtils]: 54: Hoare triple {6158#(<= 0 main_~i~0)} #t~post8 := ~j~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,137 INFO L280 TraceCheckUtils]: 55: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,138 INFO L280 TraceCheckUtils]: 56: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:19,138 INFO L280 TraceCheckUtils]: 57: Hoare triple {6158#(<= 0 main_~i~0)} #t~post9 := ~i~0; {6183#(<= 0 |main_#t~post9|)} is VALID [2020-07-08 23:38:19,139 INFO L280 TraceCheckUtils]: 58: Hoare triple {6183#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:19,140 INFO L280 TraceCheckUtils]: 59: Hoare triple {6184#(<= 1 main_~i~0)} havoc #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:19,140 INFO L280 TraceCheckUtils]: 60: Hoare triple {6184#(<= 1 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:19,141 INFO L280 TraceCheckUtils]: 61: Hoare triple {6184#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:19,141 INFO L263 TraceCheckUtils]: 62: Hoare triple {6184#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 23:38:19,141 INFO L280 TraceCheckUtils]: 63: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 23:38:19,141 INFO L280 TraceCheckUtils]: 64: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 23:38:19,142 INFO L280 TraceCheckUtils]: 65: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 23:38:19,142 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:19,143 INFO L263 TraceCheckUtils]: 67: Hoare triple {6184#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {6189#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:19,145 INFO L280 TraceCheckUtils]: 68: Hoare triple {6189#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {6190#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:19,145 INFO L280 TraceCheckUtils]: 69: Hoare triple {6190#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {6155#false} is VALID [2020-07-08 23:38:19,145 INFO L280 TraceCheckUtils]: 70: Hoare triple {6155#false} assume !false; {6155#false} is VALID [2020-07-08 23:38:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-08 23:38:19,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266825929] [2020-07-08 23:38:19,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:19,150 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 23:38:19,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219583983] [2020-07-08 23:38:19,151 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-08 23:38:19,151 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:19,151 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 23:38:19,209 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:19,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 23:38:19,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:19,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 23:38:19,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 23:38:19,210 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand 7 states. [2020-07-08 23:38:20,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:20,408 INFO L93 Difference]: Finished difference Result 210 states and 280 transitions. [2020-07-08 23:38:20,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 23:38:20,408 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-08 23:38:20,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:20,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:20,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-08 23:38:20,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:20,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-08 23:38:20,417 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 173 transitions. [2020-07-08 23:38:20,630 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:20,637 INFO L225 Difference]: With dead ends: 210 [2020-07-08 23:38:20,637 INFO L226 Difference]: Without dead ends: 206 [2020-07-08 23:38:20,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 23:38:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-08 23:38:21,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2020-07-08 23:38:21,047 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:21,047 INFO L82 GeneralOperation]: Start isEquivalent. First operand 206 states. Second operand 188 states. [2020-07-08 23:38:21,047 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 188 states. [2020-07-08 23:38:21,047 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 188 states. [2020-07-08 23:38:21,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:21,067 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-08 23:38:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-08 23:38:21,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:21,070 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:21,070 INFO L74 IsIncluded]: Start isIncluded. First operand 188 states. Second operand 206 states. [2020-07-08 23:38:21,070 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 206 states. [2020-07-08 23:38:21,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:21,081 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-08 23:38:21,081 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-08 23:38:21,083 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:21,083 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:21,083 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:21,083 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:21,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-08 23:38:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2020-07-08 23:38:21,096 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 71 [2020-07-08 23:38:21,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:21,097 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2020-07-08 23:38:21,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 23:38:21,098 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 188 states and 249 transitions. [2020-07-08 23:38:21,485 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 249 edges. 249 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:21,486 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2020-07-08 23:38:21,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-08 23:38:21,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:21,487 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:21,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 23:38:21,488 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:21,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:21,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1528474552, now seen corresponding path program 1 times [2020-07-08 23:38:21,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:21,490 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [64851031] [2020-07-08 23:38:21,490 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,601 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,601 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-08 23:38:21,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,617 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,618 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,618 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,619 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,625 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,626 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,626 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,627 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,631 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,632 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,632 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,633 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,637 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,638 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,638 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,639 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,643 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,644 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,644 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,645 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,649 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,649 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,650 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,650 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,655 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,655 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,656 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,656 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:21,661 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,661 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,661 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,662 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,662 INFO L263 TraceCheckUtils]: 0: Hoare triple {7407#true} call ULTIMATE.init(); {7407#true} is VALID [2020-07-08 23:38:21,662 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,662 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-08 23:38:21,663 INFO L263 TraceCheckUtils]: 3: Hoare triple {7407#true} call #t~ret10 := main(); {7407#true} is VALID [2020-07-08 23:38:21,663 INFO L280 TraceCheckUtils]: 4: Hoare triple {7407#true} havoc ~len~0; {7407#true} is VALID [2020-07-08 23:38:21,663 INFO L280 TraceCheckUtils]: 5: Hoare triple {7407#true} havoc ~i~0; {7407#true} is VALID [2020-07-08 23:38:21,663 INFO L280 TraceCheckUtils]: 6: Hoare triple {7407#true} havoc ~j~0; {7407#true} is VALID [2020-07-08 23:38:21,663 INFO L280 TraceCheckUtils]: 7: Hoare triple {7407#true} havoc ~bufsize~0; {7407#true} is VALID [2020-07-08 23:38:21,663 INFO L280 TraceCheckUtils]: 8: Hoare triple {7407#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {7407#true} is VALID [2020-07-08 23:38:21,664 INFO L280 TraceCheckUtils]: 9: Hoare triple {7407#true} ~bufsize~0 := #t~nondet0; {7407#true} is VALID [2020-07-08 23:38:21,664 INFO L280 TraceCheckUtils]: 10: Hoare triple {7407#true} havoc #t~nondet0; {7407#true} is VALID [2020-07-08 23:38:21,664 INFO L280 TraceCheckUtils]: 11: Hoare triple {7407#true} assume !(~bufsize~0 < 0); {7407#true} is VALID [2020-07-08 23:38:21,664 INFO L280 TraceCheckUtils]: 12: Hoare triple {7407#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {7407#true} is VALID [2020-07-08 23:38:21,664 INFO L280 TraceCheckUtils]: 13: Hoare triple {7407#true} ~len~0 := #t~nondet1; {7407#true} is VALID [2020-07-08 23:38:21,664 INFO L280 TraceCheckUtils]: 14: Hoare triple {7407#true} havoc #t~nondet1; {7407#true} is VALID [2020-07-08 23:38:21,665 INFO L280 TraceCheckUtils]: 15: Hoare triple {7407#true} ~limit~0 := ~bufsize~0 - 4; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,666 INFO L280 TraceCheckUtils]: 16: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~i~0 := 0; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,666 INFO L280 TraceCheckUtils]: 17: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0); {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,667 INFO L280 TraceCheckUtils]: 18: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~j~0 := 0; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,668 INFO L280 TraceCheckUtils]: 19: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,669 INFO L280 TraceCheckUtils]: 20: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} assume 1 + ~i~0 < ~len~0; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,669 INFO L263 TraceCheckUtils]: 21: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,669 INFO L280 TraceCheckUtils]: 22: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,670 INFO L280 TraceCheckUtils]: 23: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,670 INFO L280 TraceCheckUtils]: 24: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,671 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,671 INFO L263 TraceCheckUtils]: 26: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,671 INFO L280 TraceCheckUtils]: 27: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,671 INFO L280 TraceCheckUtils]: 28: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,672 INFO L280 TraceCheckUtils]: 29: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,673 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,673 INFO L280 TraceCheckUtils]: 31: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,674 INFO L280 TraceCheckUtils]: 32: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} assume !(0 != #t~nondet2); {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,674 INFO L280 TraceCheckUtils]: 33: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} havoc #t~nondet2; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,675 INFO L263 TraceCheckUtils]: 34: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,675 INFO L280 TraceCheckUtils]: 35: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,675 INFO L280 TraceCheckUtils]: 36: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,675 INFO L280 TraceCheckUtils]: 37: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,676 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,676 INFO L263 TraceCheckUtils]: 39: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,676 INFO L280 TraceCheckUtils]: 40: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,677 INFO L280 TraceCheckUtils]: 41: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,677 INFO L280 TraceCheckUtils]: 42: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,678 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,678 INFO L263 TraceCheckUtils]: 44: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,678 INFO L280 TraceCheckUtils]: 45: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,679 INFO L280 TraceCheckUtils]: 46: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,679 INFO L280 TraceCheckUtils]: 47: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,680 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,680 INFO L263 TraceCheckUtils]: 49: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,680 INFO L280 TraceCheckUtils]: 50: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,680 INFO L280 TraceCheckUtils]: 51: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,680 INFO L280 TraceCheckUtils]: 52: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,681 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,682 INFO L280 TraceCheckUtils]: 54: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #t~post3 := ~j~0; {7437#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,683 INFO L280 TraceCheckUtils]: 55: Hoare triple {7437#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} ~j~0 := 1 + #t~post3; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,683 INFO L280 TraceCheckUtils]: 56: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post3; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,684 INFO L280 TraceCheckUtils]: 57: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #t~post4 := ~i~0; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,685 INFO L280 TraceCheckUtils]: 58: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} ~i~0 := 1 + #t~post4; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,686 INFO L280 TraceCheckUtils]: 59: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post4; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,686 INFO L263 TraceCheckUtils]: 60: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,686 INFO L280 TraceCheckUtils]: 61: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,687 INFO L280 TraceCheckUtils]: 62: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,687 INFO L280 TraceCheckUtils]: 63: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,688 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,688 INFO L263 TraceCheckUtils]: 65: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 23:38:21,689 INFO L280 TraceCheckUtils]: 66: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 23:38:21,689 INFO L280 TraceCheckUtils]: 67: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 23:38:21,689 INFO L280 TraceCheckUtils]: 68: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 23:38:21,690 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:21,691 INFO L263 TraceCheckUtils]: 70: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {7447#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:21,692 INFO L280 TraceCheckUtils]: 71: Hoare triple {7447#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {7448#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:21,693 INFO L280 TraceCheckUtils]: 72: Hoare triple {7448#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {7408#false} is VALID [2020-07-08 23:38:21,693 INFO L280 TraceCheckUtils]: 73: Hoare triple {7408#false} assume !false; {7408#false} is VALID [2020-07-08 23:38:21,699 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-08 23:38:21,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [64851031] [2020-07-08 23:38:21,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:21,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 23:38:21,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539628581] [2020-07-08 23:38:21,701 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-08 23:38:21,701 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:21,701 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 23:38:21,775 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:21,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 23:38:21,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:21,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 23:38:21,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-08 23:38:21,777 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand 8 states. [2020-07-08 23:38:22,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:22,976 INFO L93 Difference]: Finished difference Result 194 states and 254 transitions. [2020-07-08 23:38:22,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-08 23:38:22,976 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-08 23:38:22,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:22,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 23:38:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-08 23:38:22,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 23:38:22,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-08 23:38:22,982 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 91 transitions. [2020-07-08 23:38:23,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:23,090 INFO L225 Difference]: With dead ends: 194 [2020-07-08 23:38:23,090 INFO L226 Difference]: Without dead ends: 192 [2020-07-08 23:38:23,091 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-07-08 23:38:23,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-08 23:38:23,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-08 23:38:23,548 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:23,548 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-08 23:38:23,548 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-08 23:38:23,548 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-08 23:38:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:23,556 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-08 23:38:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-08 23:38:23,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:23,558 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:23,558 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-08 23:38:23,558 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-08 23:38:23,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:23,567 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-08 23:38:23,567 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-08 23:38:23,568 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:23,568 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:23,568 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:23,569 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:23,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-08 23:38:23,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2020-07-08 23:38:23,576 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 74 [2020-07-08 23:38:23,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:23,576 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2020-07-08 23:38:23,576 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 23:38:23,576 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 192 states and 252 transitions. [2020-07-08 23:38:23,969 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 252 edges. 252 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:23,969 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-08 23:38:23,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-08 23:38:23,970 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:23,970 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 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, 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] [2020-07-08 23:38:23,970 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 23:38:23,971 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:23,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:23,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1530703596, now seen corresponding path program 1 times [2020-07-08 23:38:23,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:23,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866268388] [2020-07-08 23:38:23,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,060 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,061 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-08 23:38:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,066 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,067 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,067 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,068 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,072 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,072 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,073 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,073 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,080 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,080 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,081 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,081 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,091 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,092 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,092 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,093 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,097 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,098 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,098 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,099 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,102 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,102 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,103 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,103 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,108 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,108 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,109 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,109 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,114 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,114 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,115 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,117 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:24,143 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,143 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,144 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,145 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,145 INFO L263 TraceCheckUtils]: 0: Hoare triple {8617#true} call ULTIMATE.init(); {8617#true} is VALID [2020-07-08 23:38:24,145 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,146 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-08 23:38:24,146 INFO L263 TraceCheckUtils]: 3: Hoare triple {8617#true} call #t~ret10 := main(); {8617#true} is VALID [2020-07-08 23:38:24,146 INFO L280 TraceCheckUtils]: 4: Hoare triple {8617#true} havoc ~len~0; {8617#true} is VALID [2020-07-08 23:38:24,147 INFO L280 TraceCheckUtils]: 5: Hoare triple {8617#true} havoc ~i~0; {8617#true} is VALID [2020-07-08 23:38:24,147 INFO L280 TraceCheckUtils]: 6: Hoare triple {8617#true} havoc ~j~0; {8617#true} is VALID [2020-07-08 23:38:24,147 INFO L280 TraceCheckUtils]: 7: Hoare triple {8617#true} havoc ~bufsize~0; {8617#true} is VALID [2020-07-08 23:38:24,147 INFO L280 TraceCheckUtils]: 8: Hoare triple {8617#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {8617#true} is VALID [2020-07-08 23:38:24,148 INFO L280 TraceCheckUtils]: 9: Hoare triple {8617#true} ~bufsize~0 := #t~nondet0; {8617#true} is VALID [2020-07-08 23:38:24,148 INFO L280 TraceCheckUtils]: 10: Hoare triple {8617#true} havoc #t~nondet0; {8617#true} is VALID [2020-07-08 23:38:24,148 INFO L280 TraceCheckUtils]: 11: Hoare triple {8617#true} assume !(~bufsize~0 < 0); {8617#true} is VALID [2020-07-08 23:38:24,148 INFO L280 TraceCheckUtils]: 12: Hoare triple {8617#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {8617#true} is VALID [2020-07-08 23:38:24,149 INFO L280 TraceCheckUtils]: 13: Hoare triple {8617#true} ~len~0 := #t~nondet1; {8617#true} is VALID [2020-07-08 23:38:24,149 INFO L280 TraceCheckUtils]: 14: Hoare triple {8617#true} havoc #t~nondet1; {8617#true} is VALID [2020-07-08 23:38:24,149 INFO L280 TraceCheckUtils]: 15: Hoare triple {8617#true} ~limit~0 := ~bufsize~0 - 4; {8617#true} is VALID [2020-07-08 23:38:24,150 INFO L280 TraceCheckUtils]: 16: Hoare triple {8617#true} ~i~0 := 0; {8617#true} is VALID [2020-07-08 23:38:24,150 INFO L280 TraceCheckUtils]: 17: Hoare triple {8617#true} assume !!(~i~0 < ~len~0); {8617#true} is VALID [2020-07-08 23:38:24,152 INFO L280 TraceCheckUtils]: 18: Hoare triple {8617#true} ~j~0 := 0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,152 INFO L280 TraceCheckUtils]: 19: Hoare triple {8621#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,153 INFO L280 TraceCheckUtils]: 20: Hoare triple {8621#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,153 INFO L263 TraceCheckUtils]: 21: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,153 INFO L280 TraceCheckUtils]: 22: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,154 INFO L280 TraceCheckUtils]: 23: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,154 INFO L280 TraceCheckUtils]: 24: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,155 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,155 INFO L263 TraceCheckUtils]: 26: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,156 INFO L280 TraceCheckUtils]: 27: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,156 INFO L280 TraceCheckUtils]: 28: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,156 INFO L280 TraceCheckUtils]: 29: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,157 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,158 INFO L280 TraceCheckUtils]: 31: Hoare triple {8621#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,159 INFO L280 TraceCheckUtils]: 32: Hoare triple {8621#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,160 INFO L280 TraceCheckUtils]: 33: Hoare triple {8621#(<= 0 main_~j~0)} havoc #t~nondet2; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,160 INFO L263 TraceCheckUtils]: 34: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,160 INFO L280 TraceCheckUtils]: 35: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,160 INFO L280 TraceCheckUtils]: 36: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,160 INFO L280 TraceCheckUtils]: 37: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,161 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,161 INFO L263 TraceCheckUtils]: 39: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,162 INFO L280 TraceCheckUtils]: 40: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,162 INFO L280 TraceCheckUtils]: 41: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,162 INFO L280 TraceCheckUtils]: 42: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,163 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,163 INFO L263 TraceCheckUtils]: 44: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,163 INFO L280 TraceCheckUtils]: 45: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,163 INFO L280 TraceCheckUtils]: 46: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,163 INFO L280 TraceCheckUtils]: 47: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,164 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,164 INFO L263 TraceCheckUtils]: 49: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,164 INFO L280 TraceCheckUtils]: 50: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,165 INFO L280 TraceCheckUtils]: 51: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,165 INFO L280 TraceCheckUtils]: 52: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,165 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:24,166 INFO L280 TraceCheckUtils]: 54: Hoare triple {8621#(<= 0 main_~j~0)} #t~post3 := ~j~0; {8646#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 23:38:24,167 INFO L280 TraceCheckUtils]: 55: Hoare triple {8646#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,167 INFO L280 TraceCheckUtils]: 56: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,168 INFO L280 TraceCheckUtils]: 57: Hoare triple {8647#(<= 1 main_~j~0)} #t~post4 := ~i~0; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,168 INFO L280 TraceCheckUtils]: 58: Hoare triple {8647#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,169 INFO L280 TraceCheckUtils]: 59: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,169 INFO L263 TraceCheckUtils]: 60: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,169 INFO L280 TraceCheckUtils]: 61: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,169 INFO L280 TraceCheckUtils]: 62: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,170 INFO L280 TraceCheckUtils]: 63: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,170 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,170 INFO L263 TraceCheckUtils]: 65: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,171 INFO L280 TraceCheckUtils]: 66: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,171 INFO L280 TraceCheckUtils]: 67: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,171 INFO L280 TraceCheckUtils]: 68: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,172 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,172 INFO L263 TraceCheckUtils]: 70: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 23:38:24,172 INFO L280 TraceCheckUtils]: 71: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 23:38:24,172 INFO L280 TraceCheckUtils]: 72: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 23:38:24,172 INFO L280 TraceCheckUtils]: 73: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 23:38:24,173 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:24,175 INFO L263 TraceCheckUtils]: 75: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {8660#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:24,176 INFO L280 TraceCheckUtils]: 76: Hoare triple {8660#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {8661#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:24,176 INFO L280 TraceCheckUtils]: 77: Hoare triple {8661#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {8618#false} is VALID [2020-07-08 23:38:24,177 INFO L280 TraceCheckUtils]: 78: Hoare triple {8618#false} assume !false; {8618#false} is VALID [2020-07-08 23:38:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-08 23:38:24,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866268388] [2020-07-08 23:38:24,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:24,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 23:38:24,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242166611] [2020-07-08 23:38:24,189 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-08 23:38:24,190 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:24,190 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 23:38:24,269 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:24,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 23:38:24,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:24,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 23:38:24,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 23:38:24,270 INFO L87 Difference]: Start difference. First operand 192 states and 252 transitions. Second operand 7 states. [2020-07-08 23:38:25,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:25,347 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2020-07-08 23:38:25,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 23:38:25,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-08 23:38:25,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:25,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:25,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-08 23:38:25,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:25,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-08 23:38:25,353 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 140 transitions. [2020-07-08 23:38:25,526 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 140 edges. 140 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:25,535 INFO L225 Difference]: With dead ends: 220 [2020-07-08 23:38:25,535 INFO L226 Difference]: Without dead ends: 218 [2020-07-08 23:38:25,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 23:38:25,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-08 23:38:25,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2020-07-08 23:38:25,976 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:25,976 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 206 states. [2020-07-08 23:38:25,976 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 206 states. [2020-07-08 23:38:25,976 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 206 states. [2020-07-08 23:38:25,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:25,984 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-08 23:38:25,985 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-08 23:38:25,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:25,986 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:25,986 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 218 states. [2020-07-08 23:38:25,986 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 218 states. [2020-07-08 23:38:25,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:25,994 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-08 23:38:25,994 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-08 23:38:25,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:25,996 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:25,996 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:25,996 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:25,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-08 23:38:26,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-08 23:38:26,004 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 79 [2020-07-08 23:38:26,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:26,005 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-08 23:38:26,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 23:38:26,005 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 206 states and 269 transitions. [2020-07-08 23:38:26,431 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-08 23:38:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-08 23:38:26,433 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:26,433 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:26,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 23:38:26,434 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:26,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:26,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1064000984, now seen corresponding path program 1 times [2020-07-08 23:38:26,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:26,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [87627300] [2020-07-08 23:38:26,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,564 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,564 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-08 23:38:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,569 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,570 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,570 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,571 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,575 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,576 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,576 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,577 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,581 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,581 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,582 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,583 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,587 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,587 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,587 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,588 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,592 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,593 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,593 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,594 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,598 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,599 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,599 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,600 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,605 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,605 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,606 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,607 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,611 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,611 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,612 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,612 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:26,616 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,617 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,617 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,618 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,618 INFO L263 TraceCheckUtils]: 0: Hoare triple {9958#true} call ULTIMATE.init(); {9958#true} is VALID [2020-07-08 23:38:26,618 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,619 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-08 23:38:26,619 INFO L263 TraceCheckUtils]: 3: Hoare triple {9958#true} call #t~ret10 := main(); {9958#true} is VALID [2020-07-08 23:38:26,619 INFO L280 TraceCheckUtils]: 4: Hoare triple {9958#true} havoc ~len~0; {9958#true} is VALID [2020-07-08 23:38:26,619 INFO L280 TraceCheckUtils]: 5: Hoare triple {9958#true} havoc ~i~0; {9958#true} is VALID [2020-07-08 23:38:26,619 INFO L280 TraceCheckUtils]: 6: Hoare triple {9958#true} havoc ~j~0; {9958#true} is VALID [2020-07-08 23:38:26,620 INFO L280 TraceCheckUtils]: 7: Hoare triple {9958#true} havoc ~bufsize~0; {9958#true} is VALID [2020-07-08 23:38:26,620 INFO L280 TraceCheckUtils]: 8: Hoare triple {9958#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9958#true} is VALID [2020-07-08 23:38:26,620 INFO L280 TraceCheckUtils]: 9: Hoare triple {9958#true} ~bufsize~0 := #t~nondet0; {9958#true} is VALID [2020-07-08 23:38:26,620 INFO L280 TraceCheckUtils]: 10: Hoare triple {9958#true} havoc #t~nondet0; {9958#true} is VALID [2020-07-08 23:38:26,620 INFO L280 TraceCheckUtils]: 11: Hoare triple {9958#true} assume !(~bufsize~0 < 0); {9958#true} is VALID [2020-07-08 23:38:26,621 INFO L280 TraceCheckUtils]: 12: Hoare triple {9958#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9958#true} is VALID [2020-07-08 23:38:26,621 INFO L280 TraceCheckUtils]: 13: Hoare triple {9958#true} ~len~0 := #t~nondet1; {9958#true} is VALID [2020-07-08 23:38:26,621 INFO L280 TraceCheckUtils]: 14: Hoare triple {9958#true} havoc #t~nondet1; {9958#true} is VALID [2020-07-08 23:38:26,621 INFO L280 TraceCheckUtils]: 15: Hoare triple {9958#true} ~limit~0 := ~bufsize~0 - 4; {9958#true} is VALID [2020-07-08 23:38:26,621 INFO L280 TraceCheckUtils]: 16: Hoare triple {9958#true} ~i~0 := 0; {9958#true} is VALID [2020-07-08 23:38:26,621 INFO L280 TraceCheckUtils]: 17: Hoare triple {9958#true} assume !!(~i~0 < ~len~0); {9958#true} is VALID [2020-07-08 23:38:26,622 INFO L280 TraceCheckUtils]: 18: Hoare triple {9958#true} ~j~0 := 0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,623 INFO L280 TraceCheckUtils]: 19: Hoare triple {9962#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,623 INFO L280 TraceCheckUtils]: 20: Hoare triple {9962#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,624 INFO L263 TraceCheckUtils]: 21: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,624 INFO L280 TraceCheckUtils]: 22: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,624 INFO L280 TraceCheckUtils]: 23: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,624 INFO L280 TraceCheckUtils]: 24: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,625 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,625 INFO L263 TraceCheckUtils]: 26: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,625 INFO L280 TraceCheckUtils]: 27: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,626 INFO L280 TraceCheckUtils]: 28: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,626 INFO L280 TraceCheckUtils]: 29: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,626 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,627 INFO L280 TraceCheckUtils]: 31: Hoare triple {9962#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,627 INFO L280 TraceCheckUtils]: 32: Hoare triple {9962#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,628 INFO L280 TraceCheckUtils]: 33: Hoare triple {9962#(<= 0 main_~j~0)} havoc #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,628 INFO L263 TraceCheckUtils]: 34: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,628 INFO L280 TraceCheckUtils]: 35: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,629 INFO L280 TraceCheckUtils]: 36: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,629 INFO L280 TraceCheckUtils]: 37: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,630 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,630 INFO L263 TraceCheckUtils]: 39: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,630 INFO L280 TraceCheckUtils]: 40: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,630 INFO L280 TraceCheckUtils]: 41: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,630 INFO L280 TraceCheckUtils]: 42: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,631 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,631 INFO L263 TraceCheckUtils]: 44: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,632 INFO L280 TraceCheckUtils]: 45: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,632 INFO L280 TraceCheckUtils]: 46: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,632 INFO L280 TraceCheckUtils]: 47: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,633 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,633 INFO L263 TraceCheckUtils]: 49: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,633 INFO L280 TraceCheckUtils]: 50: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,633 INFO L280 TraceCheckUtils]: 51: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,634 INFO L280 TraceCheckUtils]: 52: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,634 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:26,635 INFO L280 TraceCheckUtils]: 54: Hoare triple {9962#(<= 0 main_~j~0)} #t~post8 := ~j~0; {9987#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 23:38:26,636 INFO L280 TraceCheckUtils]: 55: Hoare triple {9987#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,637 INFO L280 TraceCheckUtils]: 56: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,637 INFO L280 TraceCheckUtils]: 57: Hoare triple {9988#(<= 1 main_~j~0)} #t~post9 := ~i~0; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,638 INFO L280 TraceCheckUtils]: 58: Hoare triple {9988#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,639 INFO L280 TraceCheckUtils]: 59: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,639 INFO L280 TraceCheckUtils]: 60: Hoare triple {9988#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,640 INFO L280 TraceCheckUtils]: 61: Hoare triple {9988#(<= 1 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,640 INFO L263 TraceCheckUtils]: 62: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,640 INFO L280 TraceCheckUtils]: 63: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,641 INFO L280 TraceCheckUtils]: 64: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,641 INFO L280 TraceCheckUtils]: 65: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,642 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,642 INFO L263 TraceCheckUtils]: 67: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,642 INFO L280 TraceCheckUtils]: 68: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,642 INFO L280 TraceCheckUtils]: 69: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,643 INFO L280 TraceCheckUtils]: 70: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,643 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,644 INFO L263 TraceCheckUtils]: 72: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 23:38:26,644 INFO L280 TraceCheckUtils]: 73: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 23:38:26,644 INFO L280 TraceCheckUtils]: 74: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 23:38:26,644 INFO L280 TraceCheckUtils]: 75: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 23:38:26,645 INFO L275 TraceCheckUtils]: 76: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:26,646 INFO L263 TraceCheckUtils]: 77: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {10001#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:26,647 INFO L280 TraceCheckUtils]: 78: Hoare triple {10001#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {10002#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:26,647 INFO L280 TraceCheckUtils]: 79: Hoare triple {10002#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {9959#false} is VALID [2020-07-08 23:38:26,648 INFO L280 TraceCheckUtils]: 80: Hoare triple {9959#false} assume !false; {9959#false} is VALID [2020-07-08 23:38:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-08 23:38:26,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [87627300] [2020-07-08 23:38:26,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:26,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 23:38:26,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454776809] [2020-07-08 23:38:26,654 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-08 23:38:26,654 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:26,654 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 23:38:26,718 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:26,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 23:38:26,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:26,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 23:38:26,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 23:38:26,720 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 7 states. [2020-07-08 23:38:28,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:28,032 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2020-07-08 23:38:28,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 23:38:28,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-08 23:38:28,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:28,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:28,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-08 23:38:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 23:38:28,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-08 23:38:28,039 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 165 transitions. [2020-07-08 23:38:28,237 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:28,247 INFO L225 Difference]: With dead ends: 252 [2020-07-08 23:38:28,247 INFO L226 Difference]: Without dead ends: 246 [2020-07-08 23:38:28,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 23:38:28,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-08 23:38:28,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2020-07-08 23:38:28,785 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:28,785 INFO L82 GeneralOperation]: Start isEquivalent. First operand 246 states. Second operand 230 states. [2020-07-08 23:38:28,785 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 230 states. [2020-07-08 23:38:28,785 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 230 states. [2020-07-08 23:38:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:28,794 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-08 23:38:28,794 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-08 23:38:28,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:28,796 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:28,796 INFO L74 IsIncluded]: Start isIncluded. First operand 230 states. Second operand 246 states. [2020-07-08 23:38:28,796 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 246 states. [2020-07-08 23:38:28,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:28,806 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-08 23:38:28,807 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-08 23:38:28,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:28,808 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:28,808 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:28,808 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:28,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-08 23:38:28,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2020-07-08 23:38:28,817 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 81 [2020-07-08 23:38:28,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:28,817 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2020-07-08 23:38:28,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 23:38:28,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 230 states and 302 transitions. [2020-07-08 23:38:29,247 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 302 edges. 302 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:29,247 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2020-07-08 23:38:29,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-08 23:38:29,248 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:29,248 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 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, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:29,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-08 23:38:29,249 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:29,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:29,249 INFO L82 PathProgramCache]: Analyzing trace with hash -895183749, now seen corresponding path program 1 times [2020-07-08 23:38:29,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:29,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [794124728] [2020-07-08 23:38:29,250 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:29,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,391 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,392 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-08 23:38:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,397 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,397 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,397 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,398 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,407 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,408 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,408 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,409 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,414 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,414 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,414 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,415 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,422 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,423 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,423 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,423 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,434 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,434 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,434 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,435 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,439 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,439 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,440 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,440 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,446 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,446 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,447 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,448 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,452 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,452 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,452 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,453 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,457 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,458 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,458 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,458 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #139#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:29,467 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,467 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,467 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,468 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #141#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,468 INFO L263 TraceCheckUtils]: 0: Hoare triple {11467#true} call ULTIMATE.init(); {11467#true} is VALID [2020-07-08 23:38:29,469 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,469 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-08 23:38:29,469 INFO L263 TraceCheckUtils]: 3: Hoare triple {11467#true} call #t~ret10 := main(); {11467#true} is VALID [2020-07-08 23:38:29,469 INFO L280 TraceCheckUtils]: 4: Hoare triple {11467#true} havoc ~len~0; {11467#true} is VALID [2020-07-08 23:38:29,469 INFO L280 TraceCheckUtils]: 5: Hoare triple {11467#true} havoc ~i~0; {11467#true} is VALID [2020-07-08 23:38:29,470 INFO L280 TraceCheckUtils]: 6: Hoare triple {11467#true} havoc ~j~0; {11467#true} is VALID [2020-07-08 23:38:29,470 INFO L280 TraceCheckUtils]: 7: Hoare triple {11467#true} havoc ~bufsize~0; {11467#true} is VALID [2020-07-08 23:38:29,470 INFO L280 TraceCheckUtils]: 8: Hoare triple {11467#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {11467#true} is VALID [2020-07-08 23:38:29,470 INFO L280 TraceCheckUtils]: 9: Hoare triple {11467#true} ~bufsize~0 := #t~nondet0; {11467#true} is VALID [2020-07-08 23:38:29,470 INFO L280 TraceCheckUtils]: 10: Hoare triple {11467#true} havoc #t~nondet0; {11467#true} is VALID [2020-07-08 23:38:29,470 INFO L280 TraceCheckUtils]: 11: Hoare triple {11467#true} assume !(~bufsize~0 < 0); {11467#true} is VALID [2020-07-08 23:38:29,471 INFO L280 TraceCheckUtils]: 12: Hoare triple {11467#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {11467#true} is VALID [2020-07-08 23:38:29,471 INFO L280 TraceCheckUtils]: 13: Hoare triple {11467#true} ~len~0 := #t~nondet1; {11467#true} is VALID [2020-07-08 23:38:29,471 INFO L280 TraceCheckUtils]: 14: Hoare triple {11467#true} havoc #t~nondet1; {11467#true} is VALID [2020-07-08 23:38:29,472 INFO L280 TraceCheckUtils]: 15: Hoare triple {11467#true} ~limit~0 := ~bufsize~0 - 4; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,472 INFO L280 TraceCheckUtils]: 16: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~i~0 := 0; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,473 INFO L280 TraceCheckUtils]: 17: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0); {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,473 INFO L280 TraceCheckUtils]: 18: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~j~0 := 0; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,474 INFO L280 TraceCheckUtils]: 19: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,475 INFO L280 TraceCheckUtils]: 20: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} assume 1 + ~i~0 < ~len~0; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,475 INFO L263 TraceCheckUtils]: 21: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,475 INFO L280 TraceCheckUtils]: 22: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,475 INFO L280 TraceCheckUtils]: 23: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,475 INFO L280 TraceCheckUtils]: 24: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,477 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,477 INFO L263 TraceCheckUtils]: 26: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,477 INFO L280 TraceCheckUtils]: 27: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,477 INFO L280 TraceCheckUtils]: 28: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,478 INFO L280 TraceCheckUtils]: 29: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,478 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,479 INFO L280 TraceCheckUtils]: 31: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,479 INFO L280 TraceCheckUtils]: 32: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} assume !(0 != #t~nondet2); {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,480 INFO L280 TraceCheckUtils]: 33: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} havoc #t~nondet2; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,480 INFO L263 TraceCheckUtils]: 34: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,480 INFO L280 TraceCheckUtils]: 35: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,480 INFO L280 TraceCheckUtils]: 36: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,481 INFO L280 TraceCheckUtils]: 37: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,481 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,482 INFO L263 TraceCheckUtils]: 39: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,482 INFO L280 TraceCheckUtils]: 40: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,482 INFO L280 TraceCheckUtils]: 41: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,482 INFO L280 TraceCheckUtils]: 42: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,483 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,483 INFO L263 TraceCheckUtils]: 44: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,483 INFO L280 TraceCheckUtils]: 45: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,483 INFO L280 TraceCheckUtils]: 46: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,484 INFO L280 TraceCheckUtils]: 47: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,484 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,484 INFO L263 TraceCheckUtils]: 49: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,485 INFO L280 TraceCheckUtils]: 50: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,485 INFO L280 TraceCheckUtils]: 51: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,485 INFO L280 TraceCheckUtils]: 52: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,486 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,486 INFO L280 TraceCheckUtils]: 54: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #t~post3 := ~j~0; {11497#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,487 INFO L280 TraceCheckUtils]: 55: Hoare triple {11497#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} ~j~0 := 1 + #t~post3; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,488 INFO L280 TraceCheckUtils]: 56: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post3; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,488 INFO L280 TraceCheckUtils]: 57: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #t~post4 := ~i~0; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,489 INFO L280 TraceCheckUtils]: 58: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} ~i~0 := 1 + #t~post4; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,489 INFO L280 TraceCheckUtils]: 59: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post4; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,489 INFO L263 TraceCheckUtils]: 60: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,490 INFO L280 TraceCheckUtils]: 61: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,490 INFO L280 TraceCheckUtils]: 62: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,490 INFO L280 TraceCheckUtils]: 63: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,491 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,491 INFO L263 TraceCheckUtils]: 65: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,491 INFO L280 TraceCheckUtils]: 66: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,491 INFO L280 TraceCheckUtils]: 67: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,492 INFO L280 TraceCheckUtils]: 68: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,493 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,493 INFO L263 TraceCheckUtils]: 70: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,493 INFO L280 TraceCheckUtils]: 71: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,493 INFO L280 TraceCheckUtils]: 72: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,493 INFO L280 TraceCheckUtils]: 73: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,494 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #139#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,494 INFO L263 TraceCheckUtils]: 75: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 23:38:29,495 INFO L280 TraceCheckUtils]: 76: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 23:38:29,495 INFO L280 TraceCheckUtils]: 77: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 23:38:29,495 INFO L280 TraceCheckUtils]: 78: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 23:38:29,496 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #141#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,496 INFO L280 TraceCheckUtils]: 80: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #t~post5 := ~j~0; {11515#(<= (+ |main_#t~post5| 4) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,497 INFO L280 TraceCheckUtils]: 81: Hoare triple {11515#(<= (+ |main_#t~post5| 4) main_~bufsize~0)} ~j~0 := 1 + #t~post5; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,498 INFO L280 TraceCheckUtils]: 82: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} havoc #t~post5; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,498 INFO L280 TraceCheckUtils]: 83: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} #t~post6 := ~i~0; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,499 INFO L280 TraceCheckUtils]: 84: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} ~i~0 := 1 + #t~post6; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,499 INFO L280 TraceCheckUtils]: 85: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} havoc #t~post6; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 23:38:29,500 INFO L263 TraceCheckUtils]: 86: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {11517#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:29,502 INFO L280 TraceCheckUtils]: 87: Hoare triple {11517#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {11518#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:29,502 INFO L280 TraceCheckUtils]: 88: Hoare triple {11518#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {11468#false} is VALID [2020-07-08 23:38:29,502 INFO L280 TraceCheckUtils]: 89: Hoare triple {11468#false} assume !false; {11468#false} is VALID [2020-07-08 23:38:29,511 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-08 23:38:29,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [794124728] [2020-07-08 23:38:29,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:29,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-08 23:38:29,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752607057] [2020-07-08 23:38:29,513 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-08 23:38:29,513 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:29,513 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 23:38:29,582 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:29,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 23:38:29,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:29,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 23:38:29,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-08 23:38:29,583 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand 10 states. [2020-07-08 23:38:31,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:31,146 INFO L93 Difference]: Finished difference Result 236 states and 307 transitions. [2020-07-08 23:38:31,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 23:38:31,147 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-08 23:38:31,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:31,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 23:38:31,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-08 23:38:31,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 23:38:31,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-08 23:38:31,150 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 91 transitions. [2020-07-08 23:38:31,261 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:31,267 INFO L225 Difference]: With dead ends: 236 [2020-07-08 23:38:31,267 INFO L226 Difference]: Without dead ends: 234 [2020-07-08 23:38:31,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-07-08 23:38:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-08 23:38:31,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-07-08 23:38:31,800 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:31,801 INFO L82 GeneralOperation]: Start isEquivalent. First operand 234 states. Second operand 234 states. [2020-07-08 23:38:31,801 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-08 23:38:31,801 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-08 23:38:31,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:31,812 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-08 23:38:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-08 23:38:31,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:31,814 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:31,814 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-08 23:38:31,814 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-08 23:38:31,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:31,824 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-08 23:38:31,824 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-08 23:38:31,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:31,825 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:31,826 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:31,826 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-08 23:38:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2020-07-08 23:38:31,835 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 90 [2020-07-08 23:38:31,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:31,835 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2020-07-08 23:38:31,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 23:38:31,835 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 234 states and 305 transitions. [2020-07-08 23:38:32,304 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 305 edges. 305 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:32,304 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-08 23:38:32,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-08 23:38:32,305 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:32,306 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:32,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-08 23:38:32,306 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:32,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:32,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1272604239, now seen corresponding path program 1 times [2020-07-08 23:38:32,307 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:32,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017933340] [2020-07-08 23:38:32,307 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,412 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,413 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-08 23:38:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,417 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,417 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,418 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,418 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,423 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,423 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,423 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,424 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,427 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,428 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,428 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,429 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,435 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,435 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,435 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,436 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,441 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,442 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,442 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,443 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,457 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,457 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,457 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,458 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,462 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,462 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,463 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,463 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,467 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,467 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,467 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,468 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,474 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,474 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,474 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,475 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,478 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,479 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,479 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,480 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:32,484 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,484 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,485 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,486 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:32,487 INFO L263 TraceCheckUtils]: 0: Hoare triple {12945#true} call ULTIMATE.init(); {12945#true} is VALID [2020-07-08 23:38:32,487 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,487 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-08 23:38:32,487 INFO L263 TraceCheckUtils]: 3: Hoare triple {12945#true} call #t~ret10 := main(); {12945#true} is VALID [2020-07-08 23:38:32,488 INFO L280 TraceCheckUtils]: 4: Hoare triple {12945#true} havoc ~len~0; {12945#true} is VALID [2020-07-08 23:38:32,488 INFO L280 TraceCheckUtils]: 5: Hoare triple {12945#true} havoc ~i~0; {12945#true} is VALID [2020-07-08 23:38:32,488 INFO L280 TraceCheckUtils]: 6: Hoare triple {12945#true} havoc ~j~0; {12945#true} is VALID [2020-07-08 23:38:32,488 INFO L280 TraceCheckUtils]: 7: Hoare triple {12945#true} havoc ~bufsize~0; {12945#true} is VALID [2020-07-08 23:38:32,489 INFO L280 TraceCheckUtils]: 8: Hoare triple {12945#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12945#true} is VALID [2020-07-08 23:38:32,489 INFO L280 TraceCheckUtils]: 9: Hoare triple {12945#true} ~bufsize~0 := #t~nondet0; {12945#true} is VALID [2020-07-08 23:38:32,489 INFO L280 TraceCheckUtils]: 10: Hoare triple {12945#true} havoc #t~nondet0; {12945#true} is VALID [2020-07-08 23:38:32,489 INFO L280 TraceCheckUtils]: 11: Hoare triple {12945#true} assume !(~bufsize~0 < 0); {12945#true} is VALID [2020-07-08 23:38:32,490 INFO L280 TraceCheckUtils]: 12: Hoare triple {12945#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12945#true} is VALID [2020-07-08 23:38:32,490 INFO L280 TraceCheckUtils]: 13: Hoare triple {12945#true} ~len~0 := #t~nondet1; {12945#true} is VALID [2020-07-08 23:38:32,490 INFO L280 TraceCheckUtils]: 14: Hoare triple {12945#true} havoc #t~nondet1; {12945#true} is VALID [2020-07-08 23:38:32,490 INFO L280 TraceCheckUtils]: 15: Hoare triple {12945#true} ~limit~0 := ~bufsize~0 - 4; {12945#true} is VALID [2020-07-08 23:38:32,490 INFO L280 TraceCheckUtils]: 16: Hoare triple {12945#true} ~i~0 := 0; {12945#true} is VALID [2020-07-08 23:38:32,491 INFO L280 TraceCheckUtils]: 17: Hoare triple {12945#true} assume !!(~i~0 < ~len~0); {12945#true} is VALID [2020-07-08 23:38:32,492 INFO L280 TraceCheckUtils]: 18: Hoare triple {12945#true} ~j~0 := 0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,492 INFO L280 TraceCheckUtils]: 19: Hoare triple {12949#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,493 INFO L280 TraceCheckUtils]: 20: Hoare triple {12949#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,493 INFO L263 TraceCheckUtils]: 21: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,493 INFO L280 TraceCheckUtils]: 22: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,494 INFO L280 TraceCheckUtils]: 23: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,494 INFO L280 TraceCheckUtils]: 24: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,494 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,495 INFO L263 TraceCheckUtils]: 26: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,495 INFO L280 TraceCheckUtils]: 27: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,495 INFO L280 TraceCheckUtils]: 28: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,495 INFO L280 TraceCheckUtils]: 29: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,498 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,498 INFO L280 TraceCheckUtils]: 31: Hoare triple {12949#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,499 INFO L280 TraceCheckUtils]: 32: Hoare triple {12949#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,500 INFO L280 TraceCheckUtils]: 33: Hoare triple {12949#(<= 0 main_~j~0)} havoc #t~nondet2; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,500 INFO L263 TraceCheckUtils]: 34: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,500 INFO L280 TraceCheckUtils]: 35: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,500 INFO L280 TraceCheckUtils]: 36: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,501 INFO L280 TraceCheckUtils]: 37: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,502 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,502 INFO L263 TraceCheckUtils]: 39: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,502 INFO L280 TraceCheckUtils]: 40: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,502 INFO L280 TraceCheckUtils]: 41: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,503 INFO L280 TraceCheckUtils]: 42: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,503 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,504 INFO L263 TraceCheckUtils]: 44: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,504 INFO L280 TraceCheckUtils]: 45: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,504 INFO L280 TraceCheckUtils]: 46: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,504 INFO L280 TraceCheckUtils]: 47: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,505 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,505 INFO L263 TraceCheckUtils]: 49: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,506 INFO L280 TraceCheckUtils]: 50: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,506 INFO L280 TraceCheckUtils]: 51: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,506 INFO L280 TraceCheckUtils]: 52: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,507 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:32,508 INFO L280 TraceCheckUtils]: 54: Hoare triple {12949#(<= 0 main_~j~0)} #t~post3 := ~j~0; {12974#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 23:38:32,508 INFO L280 TraceCheckUtils]: 55: Hoare triple {12974#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,509 INFO L280 TraceCheckUtils]: 56: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,510 INFO L280 TraceCheckUtils]: 57: Hoare triple {12975#(<= 1 main_~j~0)} #t~post4 := ~i~0; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,510 INFO L280 TraceCheckUtils]: 58: Hoare triple {12975#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,511 INFO L280 TraceCheckUtils]: 59: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,511 INFO L263 TraceCheckUtils]: 60: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,511 INFO L280 TraceCheckUtils]: 61: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,511 INFO L280 TraceCheckUtils]: 62: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,512 INFO L280 TraceCheckUtils]: 63: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,512 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,513 INFO L263 TraceCheckUtils]: 65: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,513 INFO L280 TraceCheckUtils]: 66: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,513 INFO L280 TraceCheckUtils]: 67: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,513 INFO L280 TraceCheckUtils]: 68: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,514 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,515 INFO L263 TraceCheckUtils]: 70: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,515 INFO L280 TraceCheckUtils]: 71: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,515 INFO L280 TraceCheckUtils]: 72: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,515 INFO L280 TraceCheckUtils]: 73: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,517 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,517 INFO L263 TraceCheckUtils]: 75: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,517 INFO L280 TraceCheckUtils]: 76: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,517 INFO L280 TraceCheckUtils]: 77: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,518 INFO L280 TraceCheckUtils]: 78: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,519 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:32,519 INFO L280 TraceCheckUtils]: 80: Hoare triple {12975#(<= 1 main_~j~0)} #t~post5 := ~j~0; {12992#(<= 1 |main_#t~post5|)} is VALID [2020-07-08 23:38:32,520 INFO L280 TraceCheckUtils]: 81: Hoare triple {12992#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:32,521 INFO L280 TraceCheckUtils]: 82: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:32,521 INFO L280 TraceCheckUtils]: 83: Hoare triple {12993#(<= 2 main_~j~0)} #t~post6 := ~i~0; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:32,522 INFO L280 TraceCheckUtils]: 84: Hoare triple {12993#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:32,523 INFO L280 TraceCheckUtils]: 85: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:32,523 INFO L263 TraceCheckUtils]: 86: Hoare triple {12993#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 23:38:32,523 INFO L280 TraceCheckUtils]: 87: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 23:38:32,523 INFO L280 TraceCheckUtils]: 88: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 23:38:32,524 INFO L280 TraceCheckUtils]: 89: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 23:38:32,525 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:32,525 INFO L263 TraceCheckUtils]: 91: Hoare triple {12993#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {12998#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:32,526 INFO L280 TraceCheckUtils]: 92: Hoare triple {12998#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {12999#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:32,527 INFO L280 TraceCheckUtils]: 93: Hoare triple {12999#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {12946#false} is VALID [2020-07-08 23:38:32,527 INFO L280 TraceCheckUtils]: 94: Hoare triple {12946#false} assume !false; {12946#false} is VALID [2020-07-08 23:38:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-08 23:38:32,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017933340] [2020-07-08 23:38:32,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:32,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 23:38:32,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328238148] [2020-07-08 23:38:32,536 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-08 23:38:32,539 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:32,539 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 23:38:32,614 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:32,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 23:38:32,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:32,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 23:38:32,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 23:38:32,615 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand 9 states. [2020-07-08 23:38:34,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:34,051 INFO L93 Difference]: Finished difference Result 262 states and 335 transitions. [2020-07-08 23:38:34,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 23:38:34,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-08 23:38:34,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:34,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-08 23:38:34,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:34,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-08 23:38:34,056 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 150 transitions. [2020-07-08 23:38:34,226 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:34,232 INFO L225 Difference]: With dead ends: 262 [2020-07-08 23:38:34,232 INFO L226 Difference]: Without dead ends: 260 [2020-07-08 23:38:34,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-08 23:38:34,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-08 23:38:34,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2020-07-08 23:38:34,773 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:34,773 INFO L82 GeneralOperation]: Start isEquivalent. First operand 260 states. Second operand 246 states. [2020-07-08 23:38:34,773 INFO L74 IsIncluded]: Start isIncluded. First operand 260 states. Second operand 246 states. [2020-07-08 23:38:34,773 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 246 states. [2020-07-08 23:38:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:34,782 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-08 23:38:34,783 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-08 23:38:34,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:34,784 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:34,785 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 260 states. [2020-07-08 23:38:34,785 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 260 states. [2020-07-08 23:38:34,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:34,793 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-08 23:38:34,794 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-08 23:38:34,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:34,795 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:34,795 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:34,795 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:34,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-07-08 23:38:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 318 transitions. [2020-07-08 23:38:34,804 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 318 transitions. Word has length 95 [2020-07-08 23:38:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:34,804 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 318 transitions. [2020-07-08 23:38:34,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 23:38:34,804 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 246 states and 318 transitions. [2020-07-08 23:38:35,341 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 318 edges. 318 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:35,342 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 318 transitions. [2020-07-08 23:38:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-08 23:38:35,345 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:35,345 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 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, 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, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:35,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-08 23:38:35,346 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:35,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:35,347 INFO L82 PathProgramCache]: Analyzing trace with hash -960498755, now seen corresponding path program 1 times [2020-07-08 23:38:35,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:35,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [421752375] [2020-07-08 23:38:35,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,503 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,504 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-08 23:38:35,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,509 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,509 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,509 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,510 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,515 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,515 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,516 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,517 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,521 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,522 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,522 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,523 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,531 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,531 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,532 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,533 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,540 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,540 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,540 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,541 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,546 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,547 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,547 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,548 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,555 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,555 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,555 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,556 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,561 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,561 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,562 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,563 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,574 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,575 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,575 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,576 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,584 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,584 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,585 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,587 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,593 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,593 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,594 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,595 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,599 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,600 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,600 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,601 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:35,606 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,607 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,607 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,610 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:35,610 INFO L263 TraceCheckUtils]: 0: Hoare triple {14548#true} call ULTIMATE.init(); {14548#true} is VALID [2020-07-08 23:38:35,611 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,611 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-08 23:38:35,611 INFO L263 TraceCheckUtils]: 3: Hoare triple {14548#true} call #t~ret10 := main(); {14548#true} is VALID [2020-07-08 23:38:35,611 INFO L280 TraceCheckUtils]: 4: Hoare triple {14548#true} havoc ~len~0; {14548#true} is VALID [2020-07-08 23:38:35,612 INFO L280 TraceCheckUtils]: 5: Hoare triple {14548#true} havoc ~i~0; {14548#true} is VALID [2020-07-08 23:38:35,612 INFO L280 TraceCheckUtils]: 6: Hoare triple {14548#true} havoc ~j~0; {14548#true} is VALID [2020-07-08 23:38:35,612 INFO L280 TraceCheckUtils]: 7: Hoare triple {14548#true} havoc ~bufsize~0; {14548#true} is VALID [2020-07-08 23:38:35,612 INFO L280 TraceCheckUtils]: 8: Hoare triple {14548#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {14548#true} is VALID [2020-07-08 23:38:35,613 INFO L280 TraceCheckUtils]: 9: Hoare triple {14548#true} ~bufsize~0 := #t~nondet0; {14548#true} is VALID [2020-07-08 23:38:35,613 INFO L280 TraceCheckUtils]: 10: Hoare triple {14548#true} havoc #t~nondet0; {14548#true} is VALID [2020-07-08 23:38:35,613 INFO L280 TraceCheckUtils]: 11: Hoare triple {14548#true} assume !(~bufsize~0 < 0); {14548#true} is VALID [2020-07-08 23:38:35,614 INFO L280 TraceCheckUtils]: 12: Hoare triple {14548#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {14548#true} is VALID [2020-07-08 23:38:35,614 INFO L280 TraceCheckUtils]: 13: Hoare triple {14548#true} ~len~0 := #t~nondet1; {14548#true} is VALID [2020-07-08 23:38:35,614 INFO L280 TraceCheckUtils]: 14: Hoare triple {14548#true} havoc #t~nondet1; {14548#true} is VALID [2020-07-08 23:38:35,614 INFO L280 TraceCheckUtils]: 15: Hoare triple {14548#true} ~limit~0 := ~bufsize~0 - 4; {14548#true} is VALID [2020-07-08 23:38:35,616 INFO L280 TraceCheckUtils]: 16: Hoare triple {14548#true} ~i~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,616 INFO L280 TraceCheckUtils]: 17: Hoare triple {14552#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,617 INFO L280 TraceCheckUtils]: 18: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,618 INFO L280 TraceCheckUtils]: 19: Hoare triple {14552#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,618 INFO L280 TraceCheckUtils]: 20: Hoare triple {14552#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,619 INFO L263 TraceCheckUtils]: 21: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,619 INFO L280 TraceCheckUtils]: 22: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,619 INFO L280 TraceCheckUtils]: 23: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,620 INFO L280 TraceCheckUtils]: 24: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,621 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,621 INFO L263 TraceCheckUtils]: 26: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,621 INFO L280 TraceCheckUtils]: 27: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,622 INFO L280 TraceCheckUtils]: 28: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,622 INFO L280 TraceCheckUtils]: 29: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,623 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,624 INFO L280 TraceCheckUtils]: 31: Hoare triple {14552#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,625 INFO L280 TraceCheckUtils]: 32: Hoare triple {14552#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,625 INFO L280 TraceCheckUtils]: 33: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,626 INFO L263 TraceCheckUtils]: 34: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,626 INFO L280 TraceCheckUtils]: 35: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,626 INFO L280 TraceCheckUtils]: 36: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,627 INFO L280 TraceCheckUtils]: 37: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,628 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,628 INFO L263 TraceCheckUtils]: 39: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,628 INFO L280 TraceCheckUtils]: 40: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,629 INFO L280 TraceCheckUtils]: 41: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,629 INFO L280 TraceCheckUtils]: 42: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,630 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,630 INFO L263 TraceCheckUtils]: 44: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,630 INFO L280 TraceCheckUtils]: 45: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,631 INFO L280 TraceCheckUtils]: 46: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,631 INFO L280 TraceCheckUtils]: 47: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,632 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,632 INFO L263 TraceCheckUtils]: 49: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,633 INFO L280 TraceCheckUtils]: 50: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,633 INFO L280 TraceCheckUtils]: 51: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,633 INFO L280 TraceCheckUtils]: 52: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,634 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,635 INFO L280 TraceCheckUtils]: 54: Hoare triple {14552#(<= 0 main_~i~0)} #t~post8 := ~j~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,636 INFO L280 TraceCheckUtils]: 55: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,637 INFO L280 TraceCheckUtils]: 56: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:35,637 INFO L280 TraceCheckUtils]: 57: Hoare triple {14552#(<= 0 main_~i~0)} #t~post9 := ~i~0; {14577#(<= 0 |main_#t~post9|)} is VALID [2020-07-08 23:38:35,639 INFO L280 TraceCheckUtils]: 58: Hoare triple {14577#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,639 INFO L280 TraceCheckUtils]: 59: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,640 INFO L280 TraceCheckUtils]: 60: Hoare triple {14578#(<= 1 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,641 INFO L280 TraceCheckUtils]: 61: Hoare triple {14578#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,641 INFO L263 TraceCheckUtils]: 62: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,642 INFO L280 TraceCheckUtils]: 63: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,642 INFO L280 TraceCheckUtils]: 64: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,642 INFO L280 TraceCheckUtils]: 65: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,643 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,643 INFO L263 TraceCheckUtils]: 67: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,644 INFO L280 TraceCheckUtils]: 68: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,644 INFO L280 TraceCheckUtils]: 69: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,644 INFO L280 TraceCheckUtils]: 70: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,645 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,646 INFO L280 TraceCheckUtils]: 72: Hoare triple {14578#(<= 1 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,647 INFO L280 TraceCheckUtils]: 73: Hoare triple {14578#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,648 INFO L280 TraceCheckUtils]: 74: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~nondet2; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,648 INFO L263 TraceCheckUtils]: 75: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,648 INFO L280 TraceCheckUtils]: 76: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,649 INFO L280 TraceCheckUtils]: 77: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,649 INFO L280 TraceCheckUtils]: 78: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,650 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,650 INFO L263 TraceCheckUtils]: 80: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,651 INFO L280 TraceCheckUtils]: 81: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,651 INFO L280 TraceCheckUtils]: 82: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,651 INFO L280 TraceCheckUtils]: 83: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,652 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,653 INFO L263 TraceCheckUtils]: 85: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,653 INFO L280 TraceCheckUtils]: 86: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,653 INFO L280 TraceCheckUtils]: 87: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,653 INFO L280 TraceCheckUtils]: 88: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,655 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,655 INFO L263 TraceCheckUtils]: 90: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,656 INFO L280 TraceCheckUtils]: 91: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,656 INFO L280 TraceCheckUtils]: 92: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,656 INFO L280 TraceCheckUtils]: 93: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,657 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,658 INFO L280 TraceCheckUtils]: 95: Hoare triple {14578#(<= 1 main_~i~0)} #t~post3 := ~j~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,659 INFO L280 TraceCheckUtils]: 96: Hoare triple {14578#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,659 INFO L280 TraceCheckUtils]: 97: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:35,660 INFO L280 TraceCheckUtils]: 98: Hoare triple {14578#(<= 1 main_~i~0)} #t~post4 := ~i~0; {14603#(<= 1 |main_#t~post4|)} is VALID [2020-07-08 23:38:35,662 INFO L280 TraceCheckUtils]: 99: Hoare triple {14603#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:35,662 INFO L280 TraceCheckUtils]: 100: Hoare triple {14604#(<= 2 main_~i~0)} havoc #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:35,663 INFO L263 TraceCheckUtils]: 101: Hoare triple {14604#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 23:38:35,663 INFO L280 TraceCheckUtils]: 102: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 23:38:35,663 INFO L280 TraceCheckUtils]: 103: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 23:38:35,664 INFO L280 TraceCheckUtils]: 104: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 23:38:35,665 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:35,666 INFO L263 TraceCheckUtils]: 106: Hoare triple {14604#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14609#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:35,667 INFO L280 TraceCheckUtils]: 107: Hoare triple {14609#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {14610#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:35,668 INFO L280 TraceCheckUtils]: 108: Hoare triple {14610#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {14549#false} is VALID [2020-07-08 23:38:35,668 INFO L280 TraceCheckUtils]: 109: Hoare triple {14549#false} assume !false; {14549#false} is VALID [2020-07-08 23:38:35,687 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-08 23:38:35,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [421752375] [2020-07-08 23:38:35,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:35,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 23:38:35,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402079623] [2020-07-08 23:38:35,689 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 23:38:35,690 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:35,690 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 23:38:35,820 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:35,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 23:38:35,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:35,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 23:38:35,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 23:38:35,821 INFO L87 Difference]: Start difference. First operand 246 states and 318 transitions. Second operand 9 states. [2020-07-08 23:38:38,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:38,319 INFO L93 Difference]: Finished difference Result 293 states and 378 transitions. [2020-07-08 23:38:38,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 23:38:38,319 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 23:38:38,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:38,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:38,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-08 23:38:38,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-08 23:38:38,336 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 186 transitions. [2020-07-08 23:38:38,646 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:38,663 INFO L225 Difference]: With dead ends: 293 [2020-07-08 23:38:38,664 INFO L226 Difference]: Without dead ends: 291 [2020-07-08 23:38:38,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-08 23:38:38,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-08 23:38:39,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 270. [2020-07-08 23:38:39,471 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:39,472 INFO L82 GeneralOperation]: Start isEquivalent. First operand 291 states. Second operand 270 states. [2020-07-08 23:38:39,472 INFO L74 IsIncluded]: Start isIncluded. First operand 291 states. Second operand 270 states. [2020-07-08 23:38:39,472 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 270 states. [2020-07-08 23:38:39,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:39,489 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-08 23:38:39,489 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-08 23:38:39,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:39,492 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:39,492 INFO L74 IsIncluded]: Start isIncluded. First operand 270 states. Second operand 291 states. [2020-07-08 23:38:39,493 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 291 states. [2020-07-08 23:38:39,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:39,510 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-08 23:38:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-08 23:38:39,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:39,513 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:39,513 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:39,514 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:39,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-08 23:38:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 349 transitions. [2020-07-08 23:38:39,528 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 349 transitions. Word has length 110 [2020-07-08 23:38:39,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:39,529 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 349 transitions. [2020-07-08 23:38:39,529 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 23:38:39,529 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 270 states and 349 transitions. [2020-07-08 23:38:40,323 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 349 edges. 349 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:40,323 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 349 transitions. [2020-07-08 23:38:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-08 23:38:40,330 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:40,330 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:40,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-08 23:38:40,331 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:40,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1038471395, now seen corresponding path program 1 times [2020-07-08 23:38:40,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:40,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [339619891] [2020-07-08 23:38:40,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,525 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,525 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-08 23:38:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,530 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,530 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,531 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,532 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,539 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,539 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,540 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,541 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,545 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,546 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,546 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,547 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,555 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,555 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,556 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,557 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,570 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,571 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,571 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,572 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,577 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,577 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,578 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,583 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,588 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,589 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,589 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,590 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,595 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,595 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,595 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,596 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,602 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,603 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,603 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,604 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,609 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,610 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,610 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,611 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,617 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,618 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,618 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,619 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,624 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,624 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,625 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,626 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:40,633 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,634 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,634 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,635 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,635 INFO L263 TraceCheckUtils]: 0: Hoare triple {16331#true} call ULTIMATE.init(); {16331#true} is VALID [2020-07-08 23:38:40,636 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,636 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-08 23:38:40,636 INFO L263 TraceCheckUtils]: 3: Hoare triple {16331#true} call #t~ret10 := main(); {16331#true} is VALID [2020-07-08 23:38:40,636 INFO L280 TraceCheckUtils]: 4: Hoare triple {16331#true} havoc ~len~0; {16331#true} is VALID [2020-07-08 23:38:40,637 INFO L280 TraceCheckUtils]: 5: Hoare triple {16331#true} havoc ~i~0; {16331#true} is VALID [2020-07-08 23:38:40,637 INFO L280 TraceCheckUtils]: 6: Hoare triple {16331#true} havoc ~j~0; {16331#true} is VALID [2020-07-08 23:38:40,637 INFO L280 TraceCheckUtils]: 7: Hoare triple {16331#true} havoc ~bufsize~0; {16331#true} is VALID [2020-07-08 23:38:40,638 INFO L280 TraceCheckUtils]: 8: Hoare triple {16331#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {16331#true} is VALID [2020-07-08 23:38:40,638 INFO L280 TraceCheckUtils]: 9: Hoare triple {16331#true} ~bufsize~0 := #t~nondet0; {16331#true} is VALID [2020-07-08 23:38:40,638 INFO L280 TraceCheckUtils]: 10: Hoare triple {16331#true} havoc #t~nondet0; {16331#true} is VALID [2020-07-08 23:38:40,638 INFO L280 TraceCheckUtils]: 11: Hoare triple {16331#true} assume !(~bufsize~0 < 0); {16331#true} is VALID [2020-07-08 23:38:40,639 INFO L280 TraceCheckUtils]: 12: Hoare triple {16331#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {16331#true} is VALID [2020-07-08 23:38:40,639 INFO L280 TraceCheckUtils]: 13: Hoare triple {16331#true} ~len~0 := #t~nondet1; {16331#true} is VALID [2020-07-08 23:38:40,639 INFO L280 TraceCheckUtils]: 14: Hoare triple {16331#true} havoc #t~nondet1; {16331#true} is VALID [2020-07-08 23:38:40,640 INFO L280 TraceCheckUtils]: 15: Hoare triple {16331#true} ~limit~0 := ~bufsize~0 - 4; {16331#true} is VALID [2020-07-08 23:38:40,641 INFO L280 TraceCheckUtils]: 16: Hoare triple {16331#true} ~i~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,641 INFO L280 TraceCheckUtils]: 17: Hoare triple {16335#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,642 INFO L280 TraceCheckUtils]: 18: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,643 INFO L280 TraceCheckUtils]: 19: Hoare triple {16335#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,644 INFO L280 TraceCheckUtils]: 20: Hoare triple {16335#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,644 INFO L263 TraceCheckUtils]: 21: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,645 INFO L280 TraceCheckUtils]: 22: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,645 INFO L280 TraceCheckUtils]: 23: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,645 INFO L280 TraceCheckUtils]: 24: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,646 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,647 INFO L263 TraceCheckUtils]: 26: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,647 INFO L280 TraceCheckUtils]: 27: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,647 INFO L280 TraceCheckUtils]: 28: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,648 INFO L280 TraceCheckUtils]: 29: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,649 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,650 INFO L280 TraceCheckUtils]: 31: Hoare triple {16335#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,650 INFO L280 TraceCheckUtils]: 32: Hoare triple {16335#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,651 INFO L280 TraceCheckUtils]: 33: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~nondet2; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,652 INFO L263 TraceCheckUtils]: 34: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,652 INFO L280 TraceCheckUtils]: 35: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,652 INFO L280 TraceCheckUtils]: 36: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,652 INFO L280 TraceCheckUtils]: 37: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,654 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,654 INFO L263 TraceCheckUtils]: 39: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,654 INFO L280 TraceCheckUtils]: 40: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,654 INFO L280 TraceCheckUtils]: 41: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,655 INFO L280 TraceCheckUtils]: 42: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,656 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,656 INFO L263 TraceCheckUtils]: 44: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,656 INFO L280 TraceCheckUtils]: 45: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,657 INFO L280 TraceCheckUtils]: 46: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,657 INFO L280 TraceCheckUtils]: 47: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,658 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,659 INFO L263 TraceCheckUtils]: 49: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,659 INFO L280 TraceCheckUtils]: 50: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,659 INFO L280 TraceCheckUtils]: 51: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,660 INFO L280 TraceCheckUtils]: 52: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,661 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,662 INFO L280 TraceCheckUtils]: 54: Hoare triple {16335#(<= 0 main_~i~0)} #t~post3 := ~j~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,662 INFO L280 TraceCheckUtils]: 55: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,663 INFO L280 TraceCheckUtils]: 56: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 23:38:40,664 INFO L280 TraceCheckUtils]: 57: Hoare triple {16335#(<= 0 main_~i~0)} #t~post4 := ~i~0; {16360#(<= 0 |main_#t~post4|)} is VALID [2020-07-08 23:38:40,665 INFO L280 TraceCheckUtils]: 58: Hoare triple {16360#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,666 INFO L280 TraceCheckUtils]: 59: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,667 INFO L263 TraceCheckUtils]: 60: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,667 INFO L280 TraceCheckUtils]: 61: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,667 INFO L280 TraceCheckUtils]: 62: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,668 INFO L280 TraceCheckUtils]: 63: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,669 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,669 INFO L263 TraceCheckUtils]: 65: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,669 INFO L280 TraceCheckUtils]: 66: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,670 INFO L280 TraceCheckUtils]: 67: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,670 INFO L280 TraceCheckUtils]: 68: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,671 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,671 INFO L263 TraceCheckUtils]: 70: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,672 INFO L280 TraceCheckUtils]: 71: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,672 INFO L280 TraceCheckUtils]: 72: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,672 INFO L280 TraceCheckUtils]: 73: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,674 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,674 INFO L263 TraceCheckUtils]: 75: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,674 INFO L280 TraceCheckUtils]: 76: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,675 INFO L280 TraceCheckUtils]: 77: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,675 INFO L280 TraceCheckUtils]: 78: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,676 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,677 INFO L280 TraceCheckUtils]: 80: Hoare triple {16361#(<= 1 main_~i~0)} #t~post5 := ~j~0; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,678 INFO L280 TraceCheckUtils]: 81: Hoare triple {16361#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,679 INFO L280 TraceCheckUtils]: 82: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 23:38:40,680 INFO L280 TraceCheckUtils]: 83: Hoare triple {16361#(<= 1 main_~i~0)} #t~post6 := ~i~0; {16378#(<= 1 |main_#t~post6|)} is VALID [2020-07-08 23:38:40,681 INFO L280 TraceCheckUtils]: 84: Hoare triple {16378#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,682 INFO L280 TraceCheckUtils]: 85: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,682 INFO L263 TraceCheckUtils]: 86: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,683 INFO L280 TraceCheckUtils]: 87: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,683 INFO L280 TraceCheckUtils]: 88: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,683 INFO L280 TraceCheckUtils]: 89: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,684 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,685 INFO L263 TraceCheckUtils]: 91: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,685 INFO L280 TraceCheckUtils]: 92: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,685 INFO L280 TraceCheckUtils]: 93: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,686 INFO L280 TraceCheckUtils]: 94: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,687 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,688 INFO L280 TraceCheckUtils]: 96: Hoare triple {16379#(<= 2 main_~i~0)} #t~post7 := ~j~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,689 INFO L280 TraceCheckUtils]: 97: Hoare triple {16379#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,690 INFO L280 TraceCheckUtils]: 98: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,690 INFO L280 TraceCheckUtils]: 99: Hoare triple {16379#(<= 2 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,692 INFO L280 TraceCheckUtils]: 100: Hoare triple {16379#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,692 INFO L263 TraceCheckUtils]: 101: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 23:38:40,692 INFO L280 TraceCheckUtils]: 102: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 23:38:40,693 INFO L280 TraceCheckUtils]: 103: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 23:38:40,693 INFO L280 TraceCheckUtils]: 104: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 23:38:40,694 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 23:38:40,695 INFO L263 TraceCheckUtils]: 106: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16392#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:40,697 INFO L280 TraceCheckUtils]: 107: Hoare triple {16392#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {16393#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:40,697 INFO L280 TraceCheckUtils]: 108: Hoare triple {16393#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {16332#false} is VALID [2020-07-08 23:38:40,698 INFO L280 TraceCheckUtils]: 109: Hoare triple {16332#false} assume !false; {16332#false} is VALID [2020-07-08 23:38:40,715 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-08 23:38:40,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [339619891] [2020-07-08 23:38:40,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:40,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 23:38:40,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739152714] [2020-07-08 23:38:40,720 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 23:38:40,720 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:40,721 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 23:38:40,834 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:40,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 23:38:40,835 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:40,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 23:38:40,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 23:38:40,836 INFO L87 Difference]: Start difference. First operand 270 states and 349 transitions. Second operand 9 states. [2020-07-08 23:38:42,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:42,868 INFO L93 Difference]: Finished difference Result 372 states and 494 transitions. [2020-07-08 23:38:42,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 23:38:42,868 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 23:38:42,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-08 23:38:42,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:42,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-08 23:38:42,874 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 194 transitions. [2020-07-08 23:38:43,109 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 194 edges. 194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:43,119 INFO L225 Difference]: With dead ends: 372 [2020-07-08 23:38:43,120 INFO L226 Difference]: Without dead ends: 368 [2020-07-08 23:38:43,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-07-08 23:38:43,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-08 23:38:43,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 345. [2020-07-08 23:38:43,913 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:43,913 INFO L82 GeneralOperation]: Start isEquivalent. First operand 368 states. Second operand 345 states. [2020-07-08 23:38:43,913 INFO L74 IsIncluded]: Start isIncluded. First operand 368 states. Second operand 345 states. [2020-07-08 23:38:43,913 INFO L87 Difference]: Start difference. First operand 368 states. Second operand 345 states. [2020-07-08 23:38:43,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:43,928 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-08 23:38:43,928 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-08 23:38:43,930 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:43,930 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:43,930 INFO L74 IsIncluded]: Start isIncluded. First operand 345 states. Second operand 368 states. [2020-07-08 23:38:43,930 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 368 states. [2020-07-08 23:38:43,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:43,944 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-08 23:38:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-08 23:38:43,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:43,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:43,946 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:43,946 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-08 23:38:43,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 458 transitions. [2020-07-08 23:38:43,960 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 458 transitions. Word has length 110 [2020-07-08 23:38:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:43,960 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 458 transitions. [2020-07-08 23:38:43,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 23:38:43,961 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 345 states and 458 transitions. [2020-07-08 23:38:44,698 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 458 edges. 458 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:44,699 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 458 transitions. [2020-07-08 23:38:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-08 23:38:44,700 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:44,700 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:44,700 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-08 23:38:44,701 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:44,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1539222205, now seen corresponding path program 1 times [2020-07-08 23:38:44,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:44,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016526221] [2020-07-08 23:38:44,701 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:44,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,831 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,831 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-08 23:38:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,840 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,840 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,841 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,842 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,847 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,847 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,848 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,849 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,854 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,854 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,854 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,856 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,860 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,861 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,861 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,862 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,866 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,867 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,867 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,868 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,871 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,872 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,872 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,873 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,883 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,884 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,884 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,885 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,890 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,891 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,891 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,892 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,897 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,898 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,898 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,900 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,905 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,905 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,905 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,907 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,911 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,912 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,912 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,913 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,919 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,919 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,919 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,921 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,926 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,926 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,927 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,928 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,933 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,933 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,933 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,934 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:44,939 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,940 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,940 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,941 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,941 INFO L263 TraceCheckUtils]: 0: Hoare triple {18578#true} call ULTIMATE.init(); {18578#true} is VALID [2020-07-08 23:38:44,942 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,942 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-08 23:38:44,942 INFO L263 TraceCheckUtils]: 3: Hoare triple {18578#true} call #t~ret10 := main(); {18578#true} is VALID [2020-07-08 23:38:44,942 INFO L280 TraceCheckUtils]: 4: Hoare triple {18578#true} havoc ~len~0; {18578#true} is VALID [2020-07-08 23:38:44,943 INFO L280 TraceCheckUtils]: 5: Hoare triple {18578#true} havoc ~i~0; {18578#true} is VALID [2020-07-08 23:38:44,943 INFO L280 TraceCheckUtils]: 6: Hoare triple {18578#true} havoc ~j~0; {18578#true} is VALID [2020-07-08 23:38:44,943 INFO L280 TraceCheckUtils]: 7: Hoare triple {18578#true} havoc ~bufsize~0; {18578#true} is VALID [2020-07-08 23:38:44,944 INFO L280 TraceCheckUtils]: 8: Hoare triple {18578#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18578#true} is VALID [2020-07-08 23:38:44,944 INFO L280 TraceCheckUtils]: 9: Hoare triple {18578#true} ~bufsize~0 := #t~nondet0; {18578#true} is VALID [2020-07-08 23:38:44,944 INFO L280 TraceCheckUtils]: 10: Hoare triple {18578#true} havoc #t~nondet0; {18578#true} is VALID [2020-07-08 23:38:44,944 INFO L280 TraceCheckUtils]: 11: Hoare triple {18578#true} assume !(~bufsize~0 < 0); {18578#true} is VALID [2020-07-08 23:38:44,945 INFO L280 TraceCheckUtils]: 12: Hoare triple {18578#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18578#true} is VALID [2020-07-08 23:38:44,945 INFO L280 TraceCheckUtils]: 13: Hoare triple {18578#true} ~len~0 := #t~nondet1; {18578#true} is VALID [2020-07-08 23:38:44,945 INFO L280 TraceCheckUtils]: 14: Hoare triple {18578#true} havoc #t~nondet1; {18578#true} is VALID [2020-07-08 23:38:44,946 INFO L280 TraceCheckUtils]: 15: Hoare triple {18578#true} ~limit~0 := ~bufsize~0 - 4; {18578#true} is VALID [2020-07-08 23:38:44,946 INFO L280 TraceCheckUtils]: 16: Hoare triple {18578#true} ~i~0 := 0; {18578#true} is VALID [2020-07-08 23:38:44,946 INFO L280 TraceCheckUtils]: 17: Hoare triple {18578#true} assume !!(~i~0 < ~len~0); {18578#true} is VALID [2020-07-08 23:38:44,947 INFO L280 TraceCheckUtils]: 18: Hoare triple {18578#true} ~j~0 := 0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,948 INFO L280 TraceCheckUtils]: 19: Hoare triple {18582#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,948 INFO L280 TraceCheckUtils]: 20: Hoare triple {18582#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,949 INFO L263 TraceCheckUtils]: 21: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,949 INFO L280 TraceCheckUtils]: 22: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,949 INFO L280 TraceCheckUtils]: 23: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,950 INFO L280 TraceCheckUtils]: 24: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,951 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,951 INFO L263 TraceCheckUtils]: 26: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,951 INFO L280 TraceCheckUtils]: 27: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,952 INFO L280 TraceCheckUtils]: 28: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,952 INFO L280 TraceCheckUtils]: 29: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,953 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,954 INFO L280 TraceCheckUtils]: 31: Hoare triple {18582#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,955 INFO L280 TraceCheckUtils]: 32: Hoare triple {18582#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,956 INFO L280 TraceCheckUtils]: 33: Hoare triple {18582#(<= 0 main_~j~0)} havoc #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,956 INFO L263 TraceCheckUtils]: 34: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,956 INFO L280 TraceCheckUtils]: 35: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,957 INFO L280 TraceCheckUtils]: 36: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,957 INFO L280 TraceCheckUtils]: 37: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,958 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,958 INFO L263 TraceCheckUtils]: 39: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,959 INFO L280 TraceCheckUtils]: 40: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,959 INFO L280 TraceCheckUtils]: 41: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,959 INFO L280 TraceCheckUtils]: 42: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,960 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,961 INFO L263 TraceCheckUtils]: 44: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,961 INFO L280 TraceCheckUtils]: 45: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,961 INFO L280 TraceCheckUtils]: 46: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,962 INFO L280 TraceCheckUtils]: 47: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,963 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,963 INFO L263 TraceCheckUtils]: 49: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,963 INFO L280 TraceCheckUtils]: 50: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,964 INFO L280 TraceCheckUtils]: 51: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,964 INFO L280 TraceCheckUtils]: 52: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,965 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:44,966 INFO L280 TraceCheckUtils]: 54: Hoare triple {18582#(<= 0 main_~j~0)} #t~post8 := ~j~0; {18607#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 23:38:44,967 INFO L280 TraceCheckUtils]: 55: Hoare triple {18607#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,968 INFO L280 TraceCheckUtils]: 56: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,969 INFO L280 TraceCheckUtils]: 57: Hoare triple {18608#(<= 1 main_~j~0)} #t~post9 := ~i~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,970 INFO L280 TraceCheckUtils]: 58: Hoare triple {18608#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,971 INFO L280 TraceCheckUtils]: 59: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,971 INFO L280 TraceCheckUtils]: 60: Hoare triple {18608#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,972 INFO L280 TraceCheckUtils]: 61: Hoare triple {18608#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,973 INFO L263 TraceCheckUtils]: 62: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,973 INFO L280 TraceCheckUtils]: 63: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,973 INFO L280 TraceCheckUtils]: 64: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,973 INFO L280 TraceCheckUtils]: 65: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,975 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,975 INFO L263 TraceCheckUtils]: 67: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,975 INFO L280 TraceCheckUtils]: 68: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,976 INFO L280 TraceCheckUtils]: 69: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,976 INFO L280 TraceCheckUtils]: 70: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,977 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,978 INFO L280 TraceCheckUtils]: 72: Hoare triple {18608#(<= 1 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,979 INFO L280 TraceCheckUtils]: 73: Hoare triple {18608#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,979 INFO L280 TraceCheckUtils]: 74: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~nondet2; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,980 INFO L263 TraceCheckUtils]: 75: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,980 INFO L280 TraceCheckUtils]: 76: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,980 INFO L280 TraceCheckUtils]: 77: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,981 INFO L280 TraceCheckUtils]: 78: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,982 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,982 INFO L263 TraceCheckUtils]: 80: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,983 INFO L280 TraceCheckUtils]: 81: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,983 INFO L280 TraceCheckUtils]: 82: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,983 INFO L280 TraceCheckUtils]: 83: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,984 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,984 INFO L263 TraceCheckUtils]: 85: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,985 INFO L280 TraceCheckUtils]: 86: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,985 INFO L280 TraceCheckUtils]: 87: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,985 INFO L280 TraceCheckUtils]: 88: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,987 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,987 INFO L263 TraceCheckUtils]: 90: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,987 INFO L280 TraceCheckUtils]: 91: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,987 INFO L280 TraceCheckUtils]: 92: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,988 INFO L280 TraceCheckUtils]: 93: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,989 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:44,990 INFO L280 TraceCheckUtils]: 95: Hoare triple {18608#(<= 1 main_~j~0)} #t~post3 := ~j~0; {18633#(<= 1 |main_#t~post3|)} is VALID [2020-07-08 23:38:44,991 INFO L280 TraceCheckUtils]: 96: Hoare triple {18633#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,992 INFO L280 TraceCheckUtils]: 97: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,993 INFO L280 TraceCheckUtils]: 98: Hoare triple {18634#(<= 2 main_~j~0)} #t~post4 := ~i~0; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,993 INFO L280 TraceCheckUtils]: 99: Hoare triple {18634#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,994 INFO L280 TraceCheckUtils]: 100: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,995 INFO L263 TraceCheckUtils]: 101: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,995 INFO L280 TraceCheckUtils]: 102: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,995 INFO L280 TraceCheckUtils]: 103: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,996 INFO L280 TraceCheckUtils]: 104: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,997 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,997 INFO L263 TraceCheckUtils]: 106: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:44,997 INFO L280 TraceCheckUtils]: 107: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:44,998 INFO L280 TraceCheckUtils]: 108: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:44,998 INFO L280 TraceCheckUtils]: 109: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:44,999 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:44,999 INFO L263 TraceCheckUtils]: 111: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 23:38:45,000 INFO L280 TraceCheckUtils]: 112: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 23:38:45,000 INFO L280 TraceCheckUtils]: 113: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 23:38:45,000 INFO L280 TraceCheckUtils]: 114: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 23:38:45,001 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:45,003 INFO L263 TraceCheckUtils]: 116: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {18647#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:45,004 INFO L280 TraceCheckUtils]: 117: Hoare triple {18647#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {18648#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:45,005 INFO L280 TraceCheckUtils]: 118: Hoare triple {18648#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {18579#false} is VALID [2020-07-08 23:38:45,005 INFO L280 TraceCheckUtils]: 119: Hoare triple {18579#false} assume !false; {18579#false} is VALID [2020-07-08 23:38:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-08 23:38:45,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016526221] [2020-07-08 23:38:45,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:45,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 23:38:45,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331128112] [2020-07-08 23:38:45,027 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-08 23:38:45,028 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:45,028 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 23:38:45,162 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:45,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 23:38:45,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:45,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 23:38:45,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 23:38:45,164 INFO L87 Difference]: Start difference. First operand 345 states and 458 transitions. Second operand 9 states. [2020-07-08 23:38:47,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:47,981 INFO L93 Difference]: Finished difference Result 379 states and 496 transitions. [2020-07-08 23:38:47,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 23:38:47,981 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-08 23:38:47,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:47,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-08 23:38:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 23:38:47,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-08 23:38:47,992 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 179 transitions. [2020-07-08 23:38:48,302 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:48,322 INFO L225 Difference]: With dead ends: 379 [2020-07-08 23:38:48,323 INFO L226 Difference]: Without dead ends: 377 [2020-07-08 23:38:48,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-08 23:38:48,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-07-08 23:38:49,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 359. [2020-07-08 23:38:49,204 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:49,204 INFO L82 GeneralOperation]: Start isEquivalent. First operand 377 states. Second operand 359 states. [2020-07-08 23:38:49,204 INFO L74 IsIncluded]: Start isIncluded. First operand 377 states. Second operand 359 states. [2020-07-08 23:38:49,204 INFO L87 Difference]: Start difference. First operand 377 states. Second operand 359 states. [2020-07-08 23:38:49,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:49,218 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-08 23:38:49,218 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-08 23:38:49,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:49,220 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:49,220 INFO L74 IsIncluded]: Start isIncluded. First operand 359 states. Second operand 377 states. [2020-07-08 23:38:49,220 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 377 states. [2020-07-08 23:38:49,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:49,235 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-08 23:38:49,235 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-08 23:38:49,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:49,237 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:49,237 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:49,237 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:49,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-07-08 23:38:49,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 475 transitions. [2020-07-08 23:38:49,250 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 475 transitions. Word has length 120 [2020-07-08 23:38:49,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:49,251 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 475 transitions. [2020-07-08 23:38:49,251 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 23:38:49,251 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 359 states and 475 transitions. [2020-07-08 23:38:50,059 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 475 edges. 475 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 475 transitions. [2020-07-08 23:38:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-08 23:38:50,062 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:50,063 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:50,063 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-08 23:38:50,063 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:50,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:50,063 INFO L82 PathProgramCache]: Analyzing trace with hash 871752502, now seen corresponding path program 1 times [2020-07-08 23:38:50,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:50,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579485392] [2020-07-08 23:38:50,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,184 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,185 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-08 23:38:50,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,188 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,189 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,189 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,190 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,193 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,194 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,194 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,196 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,199 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,200 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,200 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,204 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,204 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,204 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,205 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,208 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,209 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,209 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,209 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,213 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,213 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,214 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,218 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,218 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,219 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,219 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,223 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,223 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,223 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,224 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,228 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,229 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,232 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,232 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,233 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,238 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,238 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,239 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,239 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,244 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,245 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,248 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,248 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,248 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,249 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,254 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,254 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,254 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,255 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:50,258 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,259 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,259 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,260 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,260 INFO L263 TraceCheckUtils]: 0: Hoare triple {20891#true} call ULTIMATE.init(); {20891#true} is VALID [2020-07-08 23:38:50,260 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,260 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-08 23:38:50,260 INFO L263 TraceCheckUtils]: 3: Hoare triple {20891#true} call #t~ret10 := main(); {20891#true} is VALID [2020-07-08 23:38:50,261 INFO L280 TraceCheckUtils]: 4: Hoare triple {20891#true} havoc ~len~0; {20891#true} is VALID [2020-07-08 23:38:50,261 INFO L280 TraceCheckUtils]: 5: Hoare triple {20891#true} havoc ~i~0; {20891#true} is VALID [2020-07-08 23:38:50,261 INFO L280 TraceCheckUtils]: 6: Hoare triple {20891#true} havoc ~j~0; {20891#true} is VALID [2020-07-08 23:38:50,261 INFO L280 TraceCheckUtils]: 7: Hoare triple {20891#true} havoc ~bufsize~0; {20891#true} is VALID [2020-07-08 23:38:50,261 INFO L280 TraceCheckUtils]: 8: Hoare triple {20891#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {20891#true} is VALID [2020-07-08 23:38:50,261 INFO L280 TraceCheckUtils]: 9: Hoare triple {20891#true} ~bufsize~0 := #t~nondet0; {20891#true} is VALID [2020-07-08 23:38:50,262 INFO L280 TraceCheckUtils]: 10: Hoare triple {20891#true} havoc #t~nondet0; {20891#true} is VALID [2020-07-08 23:38:50,262 INFO L280 TraceCheckUtils]: 11: Hoare triple {20891#true} assume !(~bufsize~0 < 0); {20891#true} is VALID [2020-07-08 23:38:50,262 INFO L280 TraceCheckUtils]: 12: Hoare triple {20891#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {20891#true} is VALID [2020-07-08 23:38:50,262 INFO L280 TraceCheckUtils]: 13: Hoare triple {20891#true} ~len~0 := #t~nondet1; {20891#true} is VALID [2020-07-08 23:38:50,262 INFO L280 TraceCheckUtils]: 14: Hoare triple {20891#true} havoc #t~nondet1; {20891#true} is VALID [2020-07-08 23:38:50,263 INFO L280 TraceCheckUtils]: 15: Hoare triple {20891#true} ~limit~0 := ~bufsize~0 - 4; {20891#true} is VALID [2020-07-08 23:38:50,263 INFO L280 TraceCheckUtils]: 16: Hoare triple {20891#true} ~i~0 := 0; {20891#true} is VALID [2020-07-08 23:38:50,263 INFO L280 TraceCheckUtils]: 17: Hoare triple {20891#true} assume !!(~i~0 < ~len~0); {20891#true} is VALID [2020-07-08 23:38:50,264 INFO L280 TraceCheckUtils]: 18: Hoare triple {20891#true} ~j~0 := 0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,264 INFO L280 TraceCheckUtils]: 19: Hoare triple {20895#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,265 INFO L280 TraceCheckUtils]: 20: Hoare triple {20895#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,265 INFO L263 TraceCheckUtils]: 21: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,265 INFO L280 TraceCheckUtils]: 22: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,265 INFO L280 TraceCheckUtils]: 23: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,265 INFO L280 TraceCheckUtils]: 24: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,266 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,266 INFO L263 TraceCheckUtils]: 26: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,266 INFO L280 TraceCheckUtils]: 27: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,267 INFO L280 TraceCheckUtils]: 28: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,267 INFO L280 TraceCheckUtils]: 29: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,267 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,268 INFO L280 TraceCheckUtils]: 31: Hoare triple {20895#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,268 INFO L280 TraceCheckUtils]: 32: Hoare triple {20895#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,269 INFO L280 TraceCheckUtils]: 33: Hoare triple {20895#(<= 0 main_~j~0)} havoc #t~nondet2; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,269 INFO L263 TraceCheckUtils]: 34: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,269 INFO L280 TraceCheckUtils]: 35: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,269 INFO L280 TraceCheckUtils]: 36: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,270 INFO L280 TraceCheckUtils]: 37: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,270 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,270 INFO L263 TraceCheckUtils]: 39: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,271 INFO L280 TraceCheckUtils]: 40: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,271 INFO L280 TraceCheckUtils]: 41: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,271 INFO L280 TraceCheckUtils]: 42: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,272 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,272 INFO L263 TraceCheckUtils]: 44: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,272 INFO L280 TraceCheckUtils]: 45: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,272 INFO L280 TraceCheckUtils]: 46: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,272 INFO L280 TraceCheckUtils]: 47: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,273 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,273 INFO L263 TraceCheckUtils]: 49: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,273 INFO L280 TraceCheckUtils]: 50: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,273 INFO L280 TraceCheckUtils]: 51: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,274 INFO L280 TraceCheckUtils]: 52: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,274 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:50,276 INFO L280 TraceCheckUtils]: 54: Hoare triple {20895#(<= 0 main_~j~0)} #t~post3 := ~j~0; {20920#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 23:38:50,276 INFO L280 TraceCheckUtils]: 55: Hoare triple {20920#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,277 INFO L280 TraceCheckUtils]: 56: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,277 INFO L280 TraceCheckUtils]: 57: Hoare triple {20921#(<= 1 main_~j~0)} #t~post4 := ~i~0; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,278 INFO L280 TraceCheckUtils]: 58: Hoare triple {20921#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,278 INFO L280 TraceCheckUtils]: 59: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,278 INFO L263 TraceCheckUtils]: 60: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,279 INFO L280 TraceCheckUtils]: 61: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,279 INFO L280 TraceCheckUtils]: 62: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,279 INFO L280 TraceCheckUtils]: 63: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,280 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,280 INFO L263 TraceCheckUtils]: 65: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,280 INFO L280 TraceCheckUtils]: 66: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,280 INFO L280 TraceCheckUtils]: 67: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,280 INFO L280 TraceCheckUtils]: 68: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,281 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,281 INFO L263 TraceCheckUtils]: 70: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,281 INFO L280 TraceCheckUtils]: 71: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,282 INFO L280 TraceCheckUtils]: 72: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,282 INFO L280 TraceCheckUtils]: 73: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,283 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,283 INFO L263 TraceCheckUtils]: 75: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,283 INFO L280 TraceCheckUtils]: 76: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,283 INFO L280 TraceCheckUtils]: 77: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,283 INFO L280 TraceCheckUtils]: 78: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,284 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:50,284 INFO L280 TraceCheckUtils]: 80: Hoare triple {20921#(<= 1 main_~j~0)} #t~post5 := ~j~0; {20938#(<= 1 |main_#t~post5|)} is VALID [2020-07-08 23:38:50,285 INFO L280 TraceCheckUtils]: 81: Hoare triple {20938#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,286 INFO L280 TraceCheckUtils]: 82: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,286 INFO L280 TraceCheckUtils]: 83: Hoare triple {20939#(<= 2 main_~j~0)} #t~post6 := ~i~0; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,287 INFO L280 TraceCheckUtils]: 84: Hoare triple {20939#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,287 INFO L280 TraceCheckUtils]: 85: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,287 INFO L263 TraceCheckUtils]: 86: Hoare triple {20939#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,288 INFO L280 TraceCheckUtils]: 87: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,288 INFO L280 TraceCheckUtils]: 88: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,288 INFO L280 TraceCheckUtils]: 89: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,289 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,289 INFO L263 TraceCheckUtils]: 91: Hoare triple {20939#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,289 INFO L280 TraceCheckUtils]: 92: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,289 INFO L280 TraceCheckUtils]: 93: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,290 INFO L280 TraceCheckUtils]: 94: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,290 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:50,292 INFO L280 TraceCheckUtils]: 96: Hoare triple {20939#(<= 2 main_~j~0)} #t~post7 := ~j~0; {20948#(<= 2 |main_#t~post7|)} is VALID [2020-07-08 23:38:50,292 INFO L280 TraceCheckUtils]: 97: Hoare triple {20948#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,293 INFO L280 TraceCheckUtils]: 98: Hoare triple {20949#(<= 3 main_~j~0)} havoc #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,293 INFO L280 TraceCheckUtils]: 99: Hoare triple {20949#(<= 3 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,294 INFO L280 TraceCheckUtils]: 100: Hoare triple {20949#(<= 3 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,294 INFO L263 TraceCheckUtils]: 101: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,294 INFO L280 TraceCheckUtils]: 102: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,295 INFO L280 TraceCheckUtils]: 103: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,295 INFO L280 TraceCheckUtils]: 104: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,296 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,296 INFO L263 TraceCheckUtils]: 106: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,296 INFO L280 TraceCheckUtils]: 107: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,296 INFO L280 TraceCheckUtils]: 108: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,296 INFO L280 TraceCheckUtils]: 109: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,297 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,297 INFO L263 TraceCheckUtils]: 111: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 23:38:50,298 INFO L280 TraceCheckUtils]: 112: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 23:38:50,298 INFO L280 TraceCheckUtils]: 113: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 23:38:50,298 INFO L280 TraceCheckUtils]: 114: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 23:38:50,299 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:50,300 INFO L263 TraceCheckUtils]: 116: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20962#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:50,300 INFO L280 TraceCheckUtils]: 117: Hoare triple {20962#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {20963#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:50,301 INFO L280 TraceCheckUtils]: 118: Hoare triple {20963#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {20892#false} is VALID [2020-07-08 23:38:50,301 INFO L280 TraceCheckUtils]: 119: Hoare triple {20892#false} assume !false; {20892#false} is VALID [2020-07-08 23:38:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-08 23:38:50,311 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579485392] [2020-07-08 23:38:50,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:50,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 23:38:50,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378683450] [2020-07-08 23:38:50,313 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-08 23:38:50,314 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:50,314 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 23:38:50,399 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:50,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 23:38:50,400 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:50,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 23:38:50,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 23:38:50,400 INFO L87 Difference]: Start difference. First operand 359 states and 475 transitions. Second operand 11 states. [2020-07-08 23:38:52,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:52,776 INFO L93 Difference]: Finished difference Result 424 states and 562 transitions. [2020-07-08 23:38:52,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-08 23:38:52,776 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-08 23:38:52,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:52,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:38:52,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-08 23:38:52,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:38:52,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-08 23:38:52,783 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 186 transitions. [2020-07-08 23:38:53,021 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:53,036 INFO L225 Difference]: With dead ends: 424 [2020-07-08 23:38:53,036 INFO L226 Difference]: Without dead ends: 418 [2020-07-08 23:38:53,037 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-07-08 23:38:53,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-08 23:38:54,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 398. [2020-07-08 23:38:54,075 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:54,075 INFO L82 GeneralOperation]: Start isEquivalent. First operand 418 states. Second operand 398 states. [2020-07-08 23:38:54,076 INFO L74 IsIncluded]: Start isIncluded. First operand 418 states. Second operand 398 states. [2020-07-08 23:38:54,076 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 398 states. [2020-07-08 23:38:54,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:54,091 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-08 23:38:54,092 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-08 23:38:54,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:54,094 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:54,094 INFO L74 IsIncluded]: Start isIncluded. First operand 398 states. Second operand 418 states. [2020-07-08 23:38:54,094 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 418 states. [2020-07-08 23:38:54,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:54,110 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-08 23:38:54,110 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-08 23:38:54,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:54,112 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:54,112 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:54,112 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-08 23:38:54,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 529 transitions. [2020-07-08 23:38:54,128 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 529 transitions. Word has length 120 [2020-07-08 23:38:54,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:54,128 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 529 transitions. [2020-07-08 23:38:54,128 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 23:38:54,128 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 398 states and 529 transitions. [2020-07-08 23:38:55,007 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 529 edges. 529 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:55,007 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 529 transitions. [2020-07-08 23:38:55,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-08 23:38:55,009 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:38:55,010 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:38:55,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-08 23:38:55,010 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:38:55,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:38:55,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1668448602, now seen corresponding path program 1 times [2020-07-08 23:38:55,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:38:55,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [997462124] [2020-07-08 23:38:55,011 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:38:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,140 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,140 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-08 23:38:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,145 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,146 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,146 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,146 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,152 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,152 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,153 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,153 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,158 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,159 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,159 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,160 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,165 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,166 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,166 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,167 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,171 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,171 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,172 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,172 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,176 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,176 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,177 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,181 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,182 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,182 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,183 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,186 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,186 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,187 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,187 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,191 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,191 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,191 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,192 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,195 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,196 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,196 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,197 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,202 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,202 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,202 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,203 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,206 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,206 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,207 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,207 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,211 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,211 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,211 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,212 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,218 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,219 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,219 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,223 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,223 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,223 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,224 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,228 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:38:55,237 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,238 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,238 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,238 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:55,239 INFO L263 TraceCheckUtils]: 0: Hoare triple {23462#true} call ULTIMATE.init(); {23462#true} is VALID [2020-07-08 23:38:55,239 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,239 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-08 23:38:55,239 INFO L263 TraceCheckUtils]: 3: Hoare triple {23462#true} call #t~ret10 := main(); {23462#true} is VALID [2020-07-08 23:38:55,239 INFO L280 TraceCheckUtils]: 4: Hoare triple {23462#true} havoc ~len~0; {23462#true} is VALID [2020-07-08 23:38:55,240 INFO L280 TraceCheckUtils]: 5: Hoare triple {23462#true} havoc ~i~0; {23462#true} is VALID [2020-07-08 23:38:55,240 INFO L280 TraceCheckUtils]: 6: Hoare triple {23462#true} havoc ~j~0; {23462#true} is VALID [2020-07-08 23:38:55,240 INFO L280 TraceCheckUtils]: 7: Hoare triple {23462#true} havoc ~bufsize~0; {23462#true} is VALID [2020-07-08 23:38:55,240 INFO L280 TraceCheckUtils]: 8: Hoare triple {23462#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {23462#true} is VALID [2020-07-08 23:38:55,240 INFO L280 TraceCheckUtils]: 9: Hoare triple {23462#true} ~bufsize~0 := #t~nondet0; {23462#true} is VALID [2020-07-08 23:38:55,241 INFO L280 TraceCheckUtils]: 10: Hoare triple {23462#true} havoc #t~nondet0; {23462#true} is VALID [2020-07-08 23:38:55,241 INFO L280 TraceCheckUtils]: 11: Hoare triple {23462#true} assume !(~bufsize~0 < 0); {23462#true} is VALID [2020-07-08 23:38:55,241 INFO L280 TraceCheckUtils]: 12: Hoare triple {23462#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {23462#true} is VALID [2020-07-08 23:38:55,241 INFO L280 TraceCheckUtils]: 13: Hoare triple {23462#true} ~len~0 := #t~nondet1; {23462#true} is VALID [2020-07-08 23:38:55,241 INFO L280 TraceCheckUtils]: 14: Hoare triple {23462#true} havoc #t~nondet1; {23462#true} is VALID [2020-07-08 23:38:55,241 INFO L280 TraceCheckUtils]: 15: Hoare triple {23462#true} ~limit~0 := ~bufsize~0 - 4; {23462#true} is VALID [2020-07-08 23:38:55,242 INFO L280 TraceCheckUtils]: 16: Hoare triple {23462#true} ~i~0 := 0; {23462#true} is VALID [2020-07-08 23:38:55,242 INFO L280 TraceCheckUtils]: 17: Hoare triple {23462#true} assume !!(~i~0 < ~len~0); {23462#true} is VALID [2020-07-08 23:38:55,242 INFO L280 TraceCheckUtils]: 18: Hoare triple {23462#true} ~j~0 := 0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,243 INFO L280 TraceCheckUtils]: 19: Hoare triple {23466#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,243 INFO L280 TraceCheckUtils]: 20: Hoare triple {23466#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,244 INFO L263 TraceCheckUtils]: 21: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,244 INFO L280 TraceCheckUtils]: 22: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,244 INFO L280 TraceCheckUtils]: 23: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,244 INFO L280 TraceCheckUtils]: 24: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,245 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,245 INFO L263 TraceCheckUtils]: 26: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,245 INFO L280 TraceCheckUtils]: 27: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,245 INFO L280 TraceCheckUtils]: 28: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,245 INFO L280 TraceCheckUtils]: 29: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,246 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,247 INFO L280 TraceCheckUtils]: 31: Hoare triple {23466#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,247 INFO L280 TraceCheckUtils]: 32: Hoare triple {23466#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,248 INFO L280 TraceCheckUtils]: 33: Hoare triple {23466#(<= 0 main_~j~0)} havoc #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,248 INFO L263 TraceCheckUtils]: 34: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,248 INFO L280 TraceCheckUtils]: 35: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,248 INFO L280 TraceCheckUtils]: 36: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,248 INFO L280 TraceCheckUtils]: 37: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,249 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,249 INFO L263 TraceCheckUtils]: 39: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,250 INFO L280 TraceCheckUtils]: 40: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,250 INFO L280 TraceCheckUtils]: 41: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,250 INFO L280 TraceCheckUtils]: 42: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,251 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,251 INFO L263 TraceCheckUtils]: 44: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,251 INFO L280 TraceCheckUtils]: 45: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,251 INFO L280 TraceCheckUtils]: 46: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,251 INFO L280 TraceCheckUtils]: 47: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,252 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,252 INFO L263 TraceCheckUtils]: 49: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,252 INFO L280 TraceCheckUtils]: 50: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,253 INFO L280 TraceCheckUtils]: 51: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,253 INFO L280 TraceCheckUtils]: 52: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,254 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 23:38:55,254 INFO L280 TraceCheckUtils]: 54: Hoare triple {23466#(<= 0 main_~j~0)} #t~post8 := ~j~0; {23491#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 23:38:55,255 INFO L280 TraceCheckUtils]: 55: Hoare triple {23491#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,256 INFO L280 TraceCheckUtils]: 56: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,256 INFO L280 TraceCheckUtils]: 57: Hoare triple {23492#(<= 1 main_~j~0)} #t~post9 := ~i~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,257 INFO L280 TraceCheckUtils]: 58: Hoare triple {23492#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,257 INFO L280 TraceCheckUtils]: 59: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,258 INFO L280 TraceCheckUtils]: 60: Hoare triple {23492#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,258 INFO L280 TraceCheckUtils]: 61: Hoare triple {23492#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,259 INFO L263 TraceCheckUtils]: 62: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,259 INFO L280 TraceCheckUtils]: 63: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,259 INFO L280 TraceCheckUtils]: 64: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,259 INFO L280 TraceCheckUtils]: 65: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,260 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,260 INFO L263 TraceCheckUtils]: 67: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,260 INFO L280 TraceCheckUtils]: 68: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,261 INFO L280 TraceCheckUtils]: 69: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,261 INFO L280 TraceCheckUtils]: 70: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,261 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,262 INFO L280 TraceCheckUtils]: 72: Hoare triple {23492#(<= 1 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,263 INFO L280 TraceCheckUtils]: 73: Hoare triple {23492#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,263 INFO L280 TraceCheckUtils]: 74: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~nondet2; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,263 INFO L263 TraceCheckUtils]: 75: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,264 INFO L280 TraceCheckUtils]: 76: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,264 INFO L280 TraceCheckUtils]: 77: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,264 INFO L280 TraceCheckUtils]: 78: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,265 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,265 INFO L263 TraceCheckUtils]: 80: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,265 INFO L280 TraceCheckUtils]: 81: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,265 INFO L280 TraceCheckUtils]: 82: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,265 INFO L280 TraceCheckUtils]: 83: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,266 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,266 INFO L263 TraceCheckUtils]: 85: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,266 INFO L280 TraceCheckUtils]: 86: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,267 INFO L280 TraceCheckUtils]: 87: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,267 INFO L280 TraceCheckUtils]: 88: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,267 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,268 INFO L263 TraceCheckUtils]: 90: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,268 INFO L280 TraceCheckUtils]: 91: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,268 INFO L280 TraceCheckUtils]: 92: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,268 INFO L280 TraceCheckUtils]: 93: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,269 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 23:38:55,269 INFO L280 TraceCheckUtils]: 95: Hoare triple {23492#(<= 1 main_~j~0)} #t~post3 := ~j~0; {23517#(<= 1 |main_#t~post3|)} is VALID [2020-07-08 23:38:55,270 INFO L280 TraceCheckUtils]: 96: Hoare triple {23517#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,271 INFO L280 TraceCheckUtils]: 97: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,271 INFO L280 TraceCheckUtils]: 98: Hoare triple {23518#(<= 2 main_~j~0)} #t~post4 := ~i~0; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,272 INFO L280 TraceCheckUtils]: 99: Hoare triple {23518#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,272 INFO L280 TraceCheckUtils]: 100: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,272 INFO L263 TraceCheckUtils]: 101: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,272 INFO L280 TraceCheckUtils]: 102: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,273 INFO L280 TraceCheckUtils]: 103: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,273 INFO L280 TraceCheckUtils]: 104: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,274 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,274 INFO L263 TraceCheckUtils]: 106: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,274 INFO L280 TraceCheckUtils]: 107: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,274 INFO L280 TraceCheckUtils]: 108: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,274 INFO L280 TraceCheckUtils]: 109: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,277 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,277 INFO L263 TraceCheckUtils]: 111: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,277 INFO L280 TraceCheckUtils]: 112: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,277 INFO L280 TraceCheckUtils]: 113: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,277 INFO L280 TraceCheckUtils]: 114: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,279 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,279 INFO L263 TraceCheckUtils]: 116: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,279 INFO L280 TraceCheckUtils]: 117: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,279 INFO L280 TraceCheckUtils]: 118: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,279 INFO L280 TraceCheckUtils]: 119: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,280 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 23:38:55,281 INFO L280 TraceCheckUtils]: 121: Hoare triple {23518#(<= 2 main_~j~0)} #t~post5 := ~j~0; {23535#(<= 2 |main_#t~post5|)} is VALID [2020-07-08 23:38:55,281 INFO L280 TraceCheckUtils]: 122: Hoare triple {23535#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:55,282 INFO L280 TraceCheckUtils]: 123: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:55,282 INFO L280 TraceCheckUtils]: 124: Hoare triple {23536#(<= 3 main_~j~0)} #t~post6 := ~i~0; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:55,283 INFO L280 TraceCheckUtils]: 125: Hoare triple {23536#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:55,283 INFO L280 TraceCheckUtils]: 126: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:55,284 INFO L263 TraceCheckUtils]: 127: Hoare triple {23536#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 23:38:55,284 INFO L280 TraceCheckUtils]: 128: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 23:38:55,284 INFO L280 TraceCheckUtils]: 129: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 23:38:55,284 INFO L280 TraceCheckUtils]: 130: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 23:38:55,285 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 23:38:55,285 INFO L263 TraceCheckUtils]: 132: Hoare triple {23536#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23541#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:38:55,286 INFO L280 TraceCheckUtils]: 133: Hoare triple {23541#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {23542#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:38:55,287 INFO L280 TraceCheckUtils]: 134: Hoare triple {23542#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {23463#false} is VALID [2020-07-08 23:38:55,287 INFO L280 TraceCheckUtils]: 135: Hoare triple {23463#false} assume !false; {23463#false} is VALID [2020-07-08 23:38:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-08 23:38:55,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [997462124] [2020-07-08 23:38:55,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:38:55,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 23:38:55,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138824498] [2020-07-08 23:38:55,302 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-08 23:38:55,302 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:38:55,303 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 23:38:55,401 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:55,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 23:38:55,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:38:55,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 23:38:55,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 23:38:55,402 INFO L87 Difference]: Start difference. First operand 398 states and 529 transitions. Second operand 11 states. [2020-07-08 23:38:58,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:58,167 INFO L93 Difference]: Finished difference Result 432 states and 566 transitions. [2020-07-08 23:38:58,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-08 23:38:58,167 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-08 23:38:58,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:38:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:38:58,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-08 23:38:58,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:38:58,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-08 23:38:58,173 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 189 transitions. [2020-07-08 23:38:58,412 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:38:58,424 INFO L225 Difference]: With dead ends: 432 [2020-07-08 23:38:58,424 INFO L226 Difference]: Without dead ends: 430 [2020-07-08 23:38:58,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-07-08 23:38:58,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-07-08 23:38:59,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 410. [2020-07-08 23:38:59,470 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:38:59,470 INFO L82 GeneralOperation]: Start isEquivalent. First operand 430 states. Second operand 410 states. [2020-07-08 23:38:59,471 INFO L74 IsIncluded]: Start isIncluded. First operand 430 states. Second operand 410 states. [2020-07-08 23:38:59,471 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 410 states. [2020-07-08 23:38:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:59,484 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-08 23:38:59,485 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-08 23:38:59,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:59,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:59,486 INFO L74 IsIncluded]: Start isIncluded. First operand 410 states. Second operand 430 states. [2020-07-08 23:38:59,486 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 430 states. [2020-07-08 23:38:59,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:38:59,502 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-08 23:38:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-08 23:38:59,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:38:59,504 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:38:59,504 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:38:59,504 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:38:59,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-07-08 23:38:59,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 542 transitions. [2020-07-08 23:38:59,519 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 542 transitions. Word has length 136 [2020-07-08 23:38:59,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:38:59,519 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 542 transitions. [2020-07-08 23:38:59,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 23:38:59,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 410 states and 542 transitions. [2020-07-08 23:39:00,458 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 542 edges. 542 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 542 transitions. [2020-07-08 23:39:00,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-08 23:39:00,461 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:39:00,461 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:39:00,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-08 23:39:00,462 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:39:00,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:39:00,462 INFO L82 PathProgramCache]: Analyzing trace with hash 362381850, now seen corresponding path program 1 times [2020-07-08 23:39:00,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:39:00,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349529027] [2020-07-08 23:39:00,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:39:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,601 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,602 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-08 23:39:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,608 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,608 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,608 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,609 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,613 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,613 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,613 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,614 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,617 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,618 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,618 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,619 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,625 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,626 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,626 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,629 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,635 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,635 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,635 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,636 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,639 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,640 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,640 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,641 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,653 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,653 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,653 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,654 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,658 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,658 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,658 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,659 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,663 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,663 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,663 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,664 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,668 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,668 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,668 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,669 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,673 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,673 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,673 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,674 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,683 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,684 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,684 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,685 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,688 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,689 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,689 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,690 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,693 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,694 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,694 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,694 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,698 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,698 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,699 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,700 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,704 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,704 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,704 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,705 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,709 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,709 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,710 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,711 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,715 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,715 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,715 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,716 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:00,720 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,720 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,721 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,721 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,722 INFO L263 TraceCheckUtils]: 0: Hoare triple {26103#true} call ULTIMATE.init(); {26103#true} is VALID [2020-07-08 23:39:00,722 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,722 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-08 23:39:00,722 INFO L263 TraceCheckUtils]: 3: Hoare triple {26103#true} call #t~ret10 := main(); {26103#true} is VALID [2020-07-08 23:39:00,722 INFO L280 TraceCheckUtils]: 4: Hoare triple {26103#true} havoc ~len~0; {26103#true} is VALID [2020-07-08 23:39:00,723 INFO L280 TraceCheckUtils]: 5: Hoare triple {26103#true} havoc ~i~0; {26103#true} is VALID [2020-07-08 23:39:00,723 INFO L280 TraceCheckUtils]: 6: Hoare triple {26103#true} havoc ~j~0; {26103#true} is VALID [2020-07-08 23:39:00,723 INFO L280 TraceCheckUtils]: 7: Hoare triple {26103#true} havoc ~bufsize~0; {26103#true} is VALID [2020-07-08 23:39:00,723 INFO L280 TraceCheckUtils]: 8: Hoare triple {26103#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {26103#true} is VALID [2020-07-08 23:39:00,723 INFO L280 TraceCheckUtils]: 9: Hoare triple {26103#true} ~bufsize~0 := #t~nondet0; {26103#true} is VALID [2020-07-08 23:39:00,724 INFO L280 TraceCheckUtils]: 10: Hoare triple {26103#true} havoc #t~nondet0; {26103#true} is VALID [2020-07-08 23:39:00,724 INFO L280 TraceCheckUtils]: 11: Hoare triple {26103#true} assume !(~bufsize~0 < 0); {26103#true} is VALID [2020-07-08 23:39:00,724 INFO L280 TraceCheckUtils]: 12: Hoare triple {26103#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {26103#true} is VALID [2020-07-08 23:39:00,724 INFO L280 TraceCheckUtils]: 13: Hoare triple {26103#true} ~len~0 := #t~nondet1; {26103#true} is VALID [2020-07-08 23:39:00,724 INFO L280 TraceCheckUtils]: 14: Hoare triple {26103#true} havoc #t~nondet1; {26103#true} is VALID [2020-07-08 23:39:00,724 INFO L280 TraceCheckUtils]: 15: Hoare triple {26103#true} ~limit~0 := ~bufsize~0 - 4; {26103#true} is VALID [2020-07-08 23:39:00,725 INFO L280 TraceCheckUtils]: 16: Hoare triple {26103#true} ~i~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,726 INFO L280 TraceCheckUtils]: 17: Hoare triple {26107#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,726 INFO L280 TraceCheckUtils]: 18: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,727 INFO L280 TraceCheckUtils]: 19: Hoare triple {26107#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,727 INFO L280 TraceCheckUtils]: 20: Hoare triple {26107#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,728 INFO L263 TraceCheckUtils]: 21: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,728 INFO L280 TraceCheckUtils]: 22: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,728 INFO L280 TraceCheckUtils]: 23: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,728 INFO L280 TraceCheckUtils]: 24: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,729 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,729 INFO L263 TraceCheckUtils]: 26: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,729 INFO L280 TraceCheckUtils]: 27: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,730 INFO L280 TraceCheckUtils]: 28: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,730 INFO L280 TraceCheckUtils]: 29: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,731 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,731 INFO L280 TraceCheckUtils]: 31: Hoare triple {26107#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,732 INFO L280 TraceCheckUtils]: 32: Hoare triple {26107#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,732 INFO L280 TraceCheckUtils]: 33: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,733 INFO L263 TraceCheckUtils]: 34: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,733 INFO L280 TraceCheckUtils]: 35: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,733 INFO L280 TraceCheckUtils]: 36: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,733 INFO L280 TraceCheckUtils]: 37: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,734 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,734 INFO L263 TraceCheckUtils]: 39: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,734 INFO L280 TraceCheckUtils]: 40: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,735 INFO L280 TraceCheckUtils]: 41: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,735 INFO L280 TraceCheckUtils]: 42: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,735 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,736 INFO L263 TraceCheckUtils]: 44: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,736 INFO L280 TraceCheckUtils]: 45: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,736 INFO L280 TraceCheckUtils]: 46: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,736 INFO L280 TraceCheckUtils]: 47: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,737 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,737 INFO L263 TraceCheckUtils]: 49: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,737 INFO L280 TraceCheckUtils]: 50: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,737 INFO L280 TraceCheckUtils]: 51: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,737 INFO L280 TraceCheckUtils]: 52: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,738 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,739 INFO L280 TraceCheckUtils]: 54: Hoare triple {26107#(<= 0 main_~i~0)} #t~post8 := ~j~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,739 INFO L280 TraceCheckUtils]: 55: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,740 INFO L280 TraceCheckUtils]: 56: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:00,740 INFO L280 TraceCheckUtils]: 57: Hoare triple {26107#(<= 0 main_~i~0)} #t~post9 := ~i~0; {26132#(<= 0 |main_#t~post9|)} is VALID [2020-07-08 23:39:00,741 INFO L280 TraceCheckUtils]: 58: Hoare triple {26132#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,742 INFO L280 TraceCheckUtils]: 59: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,742 INFO L280 TraceCheckUtils]: 60: Hoare triple {26133#(<= 1 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,743 INFO L280 TraceCheckUtils]: 61: Hoare triple {26133#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,743 INFO L263 TraceCheckUtils]: 62: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,743 INFO L280 TraceCheckUtils]: 63: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,744 INFO L280 TraceCheckUtils]: 64: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,744 INFO L280 TraceCheckUtils]: 65: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,744 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,745 INFO L263 TraceCheckUtils]: 67: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,745 INFO L280 TraceCheckUtils]: 68: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,745 INFO L280 TraceCheckUtils]: 69: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,745 INFO L280 TraceCheckUtils]: 70: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,746 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,747 INFO L280 TraceCheckUtils]: 72: Hoare triple {26133#(<= 1 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,747 INFO L280 TraceCheckUtils]: 73: Hoare triple {26133#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,748 INFO L280 TraceCheckUtils]: 74: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~nondet2; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,748 INFO L263 TraceCheckUtils]: 75: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,748 INFO L280 TraceCheckUtils]: 76: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,749 INFO L280 TraceCheckUtils]: 77: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,749 INFO L280 TraceCheckUtils]: 78: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,749 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,750 INFO L263 TraceCheckUtils]: 80: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,750 INFO L280 TraceCheckUtils]: 81: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,750 INFO L280 TraceCheckUtils]: 82: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,750 INFO L280 TraceCheckUtils]: 83: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,751 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,751 INFO L263 TraceCheckUtils]: 85: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,751 INFO L280 TraceCheckUtils]: 86: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,751 INFO L280 TraceCheckUtils]: 87: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,752 INFO L280 TraceCheckUtils]: 88: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,752 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,753 INFO L263 TraceCheckUtils]: 90: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,753 INFO L280 TraceCheckUtils]: 91: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,753 INFO L280 TraceCheckUtils]: 92: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,753 INFO L280 TraceCheckUtils]: 93: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,754 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,755 INFO L280 TraceCheckUtils]: 95: Hoare triple {26133#(<= 1 main_~i~0)} #t~post3 := ~j~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,755 INFO L280 TraceCheckUtils]: 96: Hoare triple {26133#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,756 INFO L280 TraceCheckUtils]: 97: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:00,757 INFO L280 TraceCheckUtils]: 98: Hoare triple {26133#(<= 1 main_~i~0)} #t~post4 := ~i~0; {26158#(<= 1 |main_#t~post4|)} is VALID [2020-07-08 23:39:00,758 INFO L280 TraceCheckUtils]: 99: Hoare triple {26158#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,759 INFO L280 TraceCheckUtils]: 100: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,759 INFO L263 TraceCheckUtils]: 101: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,759 INFO L280 TraceCheckUtils]: 102: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,759 INFO L280 TraceCheckUtils]: 103: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,759 INFO L280 TraceCheckUtils]: 104: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,760 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,760 INFO L263 TraceCheckUtils]: 106: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,760 INFO L280 TraceCheckUtils]: 107: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,761 INFO L280 TraceCheckUtils]: 108: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,761 INFO L280 TraceCheckUtils]: 109: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,762 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,762 INFO L263 TraceCheckUtils]: 111: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,762 INFO L280 TraceCheckUtils]: 112: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,763 INFO L280 TraceCheckUtils]: 113: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,763 INFO L280 TraceCheckUtils]: 114: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,764 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,764 INFO L263 TraceCheckUtils]: 116: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,764 INFO L280 TraceCheckUtils]: 117: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,764 INFO L280 TraceCheckUtils]: 118: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,765 INFO L280 TraceCheckUtils]: 119: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,765 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,766 INFO L280 TraceCheckUtils]: 121: Hoare triple {26159#(<= 2 main_~i~0)} #t~post5 := ~j~0; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,766 INFO L280 TraceCheckUtils]: 122: Hoare triple {26159#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,767 INFO L280 TraceCheckUtils]: 123: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:00,768 INFO L280 TraceCheckUtils]: 124: Hoare triple {26159#(<= 2 main_~i~0)} #t~post6 := ~i~0; {26176#(<= 2 |main_#t~post6|)} is VALID [2020-07-08 23:39:00,769 INFO L280 TraceCheckUtils]: 125: Hoare triple {26176#(<= 2 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,769 INFO L280 TraceCheckUtils]: 126: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,769 INFO L263 TraceCheckUtils]: 127: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,770 INFO L280 TraceCheckUtils]: 128: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,770 INFO L280 TraceCheckUtils]: 129: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,770 INFO L280 TraceCheckUtils]: 130: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,771 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,771 INFO L263 TraceCheckUtils]: 132: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,772 INFO L280 TraceCheckUtils]: 133: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,772 INFO L280 TraceCheckUtils]: 134: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,772 INFO L280 TraceCheckUtils]: 135: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,773 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,774 INFO L280 TraceCheckUtils]: 137: Hoare triple {26177#(<= 3 main_~i~0)} #t~post7 := ~j~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,774 INFO L280 TraceCheckUtils]: 138: Hoare triple {26177#(<= 3 main_~i~0)} ~j~0 := 1 + #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,775 INFO L280 TraceCheckUtils]: 139: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,775 INFO L280 TraceCheckUtils]: 140: Hoare triple {26177#(<= 3 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,776 INFO L280 TraceCheckUtils]: 141: Hoare triple {26177#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,776 INFO L263 TraceCheckUtils]: 142: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 23:39:00,776 INFO L280 TraceCheckUtils]: 143: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 23:39:00,777 INFO L280 TraceCheckUtils]: 144: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 23:39:00,777 INFO L280 TraceCheckUtils]: 145: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 23:39:00,778 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:00,779 INFO L263 TraceCheckUtils]: 147: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26190#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:39:00,780 INFO L280 TraceCheckUtils]: 148: Hoare triple {26190#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {26191#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:39:00,780 INFO L280 TraceCheckUtils]: 149: Hoare triple {26191#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {26104#false} is VALID [2020-07-08 23:39:00,781 INFO L280 TraceCheckUtils]: 150: Hoare triple {26104#false} assume !false; {26104#false} is VALID [2020-07-08 23:39:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-08 23:39:00,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349529027] [2020-07-08 23:39:00,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:39:00,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 23:39:00,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210840246] [2020-07-08 23:39:00,800 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 23:39:00,800 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:39:00,800 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 23:39:00,916 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:00,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 23:39:00,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:39:00,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 23:39:00,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 23:39:00,917 INFO L87 Difference]: Start difference. First operand 410 states and 542 transitions. Second operand 11 states. [2020-07-08 23:39:04,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:04,590 INFO L93 Difference]: Finished difference Result 645 states and 888 transitions. [2020-07-08 23:39:04,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-08 23:39:04,590 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 23:39:04,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:39:04,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:39:04,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 23:39:04,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:39:04,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 23:39:04,598 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-08 23:39:04,899 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:04,925 INFO L225 Difference]: With dead ends: 645 [2020-07-08 23:39:04,925 INFO L226 Difference]: Without dead ends: 639 [2020-07-08 23:39:04,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2020-07-08 23:39:04,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-07-08 23:39:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 572. [2020-07-08 23:39:06,488 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:39:06,489 INFO L82 GeneralOperation]: Start isEquivalent. First operand 639 states. Second operand 572 states. [2020-07-08 23:39:06,489 INFO L74 IsIncluded]: Start isIncluded. First operand 639 states. Second operand 572 states. [2020-07-08 23:39:06,489 INFO L87 Difference]: Start difference. First operand 639 states. Second operand 572 states. [2020-07-08 23:39:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:06,518 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-08 23:39:06,518 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-08 23:39:06,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:06,520 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:06,520 INFO L74 IsIncluded]: Start isIncluded. First operand 572 states. Second operand 639 states. [2020-07-08 23:39:06,520 INFO L87 Difference]: Start difference. First operand 572 states. Second operand 639 states. [2020-07-08 23:39:06,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:06,551 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-08 23:39:06,551 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-08 23:39:06,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:06,554 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:06,554 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:39:06,554 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:39:06,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-07-08 23:39:06,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 778 transitions. [2020-07-08 23:39:06,579 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 778 transitions. Word has length 151 [2020-07-08 23:39:06,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:39:06,580 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 778 transitions. [2020-07-08 23:39:06,580 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 23:39:06,580 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 572 states and 778 transitions. [2020-07-08 23:39:07,965 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 778 edges. 778 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:07,965 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 778 transitions. [2020-07-08 23:39:07,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-08 23:39:07,967 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:39:07,968 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 23:39:07,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-08 23:39:07,968 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:39:07,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:39:07,968 INFO L82 PathProgramCache]: Analyzing trace with hash -978309232, now seen corresponding path program 2 times [2020-07-08 23:39:07,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:39:07,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1228695876] [2020-07-08 23:39:07,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:39:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,094 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,094 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-08 23:39:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,100 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,101 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,102 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,105 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,105 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,105 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,106 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,110 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,111 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,111 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,112 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,115 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,115 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,116 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,117 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,121 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,121 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,121 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,124 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,133 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,133 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,133 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,134 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,138 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,138 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,138 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,139 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,142 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,143 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,143 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,144 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,149 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,150 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,150 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,151 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,154 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,155 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,155 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,155 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,159 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,159 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,160 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,162 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,165 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,166 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,166 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,167 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,170 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,171 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,171 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,172 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,176 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,177 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,177 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,178 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,183 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,184 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,184 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,185 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,188 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,189 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,189 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,189 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,193 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,193 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,194 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,194 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,199 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,200 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,200 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,201 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:08,205 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:08,206 INFO L263 TraceCheckUtils]: 0: Hoare triple {29924#true} call ULTIMATE.init(); {29924#true} is VALID [2020-07-08 23:39:08,207 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,207 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-08 23:39:08,207 INFO L263 TraceCheckUtils]: 3: Hoare triple {29924#true} call #t~ret10 := main(); {29924#true} is VALID [2020-07-08 23:39:08,207 INFO L280 TraceCheckUtils]: 4: Hoare triple {29924#true} havoc ~len~0; {29924#true} is VALID [2020-07-08 23:39:08,207 INFO L280 TraceCheckUtils]: 5: Hoare triple {29924#true} havoc ~i~0; {29924#true} is VALID [2020-07-08 23:39:08,208 INFO L280 TraceCheckUtils]: 6: Hoare triple {29924#true} havoc ~j~0; {29924#true} is VALID [2020-07-08 23:39:08,208 INFO L280 TraceCheckUtils]: 7: Hoare triple {29924#true} havoc ~bufsize~0; {29924#true} is VALID [2020-07-08 23:39:08,208 INFO L280 TraceCheckUtils]: 8: Hoare triple {29924#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {29924#true} is VALID [2020-07-08 23:39:08,208 INFO L280 TraceCheckUtils]: 9: Hoare triple {29924#true} ~bufsize~0 := #t~nondet0; {29924#true} is VALID [2020-07-08 23:39:08,208 INFO L280 TraceCheckUtils]: 10: Hoare triple {29924#true} havoc #t~nondet0; {29924#true} is VALID [2020-07-08 23:39:08,208 INFO L280 TraceCheckUtils]: 11: Hoare triple {29924#true} assume !(~bufsize~0 < 0); {29924#true} is VALID [2020-07-08 23:39:08,209 INFO L280 TraceCheckUtils]: 12: Hoare triple {29924#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {29924#true} is VALID [2020-07-08 23:39:08,209 INFO L280 TraceCheckUtils]: 13: Hoare triple {29924#true} ~len~0 := #t~nondet1; {29924#true} is VALID [2020-07-08 23:39:08,209 INFO L280 TraceCheckUtils]: 14: Hoare triple {29924#true} havoc #t~nondet1; {29924#true} is VALID [2020-07-08 23:39:08,209 INFO L280 TraceCheckUtils]: 15: Hoare triple {29924#true} ~limit~0 := ~bufsize~0 - 4; {29924#true} is VALID [2020-07-08 23:39:08,210 INFO L280 TraceCheckUtils]: 16: Hoare triple {29924#true} ~i~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,210 INFO L280 TraceCheckUtils]: 17: Hoare triple {29928#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,211 INFO L280 TraceCheckUtils]: 18: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,212 INFO L280 TraceCheckUtils]: 19: Hoare triple {29928#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,212 INFO L280 TraceCheckUtils]: 20: Hoare triple {29928#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,212 INFO L263 TraceCheckUtils]: 21: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,213 INFO L280 TraceCheckUtils]: 22: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,213 INFO L280 TraceCheckUtils]: 23: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,213 INFO L280 TraceCheckUtils]: 24: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,214 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,214 INFO L263 TraceCheckUtils]: 26: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,214 INFO L280 TraceCheckUtils]: 27: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,214 INFO L280 TraceCheckUtils]: 28: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,215 INFO L280 TraceCheckUtils]: 29: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,215 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,216 INFO L280 TraceCheckUtils]: 31: Hoare triple {29928#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,216 INFO L280 TraceCheckUtils]: 32: Hoare triple {29928#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,218 INFO L280 TraceCheckUtils]: 33: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~nondet2; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,219 INFO L263 TraceCheckUtils]: 34: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,219 INFO L280 TraceCheckUtils]: 35: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,219 INFO L280 TraceCheckUtils]: 36: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,219 INFO L280 TraceCheckUtils]: 37: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,220 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,220 INFO L263 TraceCheckUtils]: 39: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,221 INFO L280 TraceCheckUtils]: 40: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,221 INFO L280 TraceCheckUtils]: 41: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,221 INFO L280 TraceCheckUtils]: 42: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,222 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,222 INFO L263 TraceCheckUtils]: 44: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,222 INFO L280 TraceCheckUtils]: 45: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,222 INFO L280 TraceCheckUtils]: 46: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,222 INFO L280 TraceCheckUtils]: 47: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,223 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,223 INFO L263 TraceCheckUtils]: 49: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,224 INFO L280 TraceCheckUtils]: 50: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,224 INFO L280 TraceCheckUtils]: 51: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,224 INFO L280 TraceCheckUtils]: 52: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,225 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,225 INFO L280 TraceCheckUtils]: 54: Hoare triple {29928#(<= 0 main_~i~0)} #t~post3 := ~j~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,226 INFO L280 TraceCheckUtils]: 55: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,226 INFO L280 TraceCheckUtils]: 56: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 23:39:08,227 INFO L280 TraceCheckUtils]: 57: Hoare triple {29928#(<= 0 main_~i~0)} #t~post4 := ~i~0; {29953#(<= 0 |main_#t~post4|)} is VALID [2020-07-08 23:39:08,228 INFO L280 TraceCheckUtils]: 58: Hoare triple {29953#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,229 INFO L280 TraceCheckUtils]: 59: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,229 INFO L263 TraceCheckUtils]: 60: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,229 INFO L280 TraceCheckUtils]: 61: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,229 INFO L280 TraceCheckUtils]: 62: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,230 INFO L280 TraceCheckUtils]: 63: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,231 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,231 INFO L263 TraceCheckUtils]: 65: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,231 INFO L280 TraceCheckUtils]: 66: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,231 INFO L280 TraceCheckUtils]: 67: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,232 INFO L280 TraceCheckUtils]: 68: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,234 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,234 INFO L263 TraceCheckUtils]: 70: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,234 INFO L280 TraceCheckUtils]: 71: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,234 INFO L280 TraceCheckUtils]: 72: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,235 INFO L280 TraceCheckUtils]: 73: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,235 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,236 INFO L263 TraceCheckUtils]: 75: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,236 INFO L280 TraceCheckUtils]: 76: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,236 INFO L280 TraceCheckUtils]: 77: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,236 INFO L280 TraceCheckUtils]: 78: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,237 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,237 INFO L280 TraceCheckUtils]: 80: Hoare triple {29954#(<= 1 main_~i~0)} #t~post5 := ~j~0; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,238 INFO L280 TraceCheckUtils]: 81: Hoare triple {29954#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,239 INFO L280 TraceCheckUtils]: 82: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 23:39:08,239 INFO L280 TraceCheckUtils]: 83: Hoare triple {29954#(<= 1 main_~i~0)} #t~post6 := ~i~0; {29971#(<= 1 |main_#t~post6|)} is VALID [2020-07-08 23:39:08,240 INFO L280 TraceCheckUtils]: 84: Hoare triple {29971#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,241 INFO L280 TraceCheckUtils]: 85: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,241 INFO L263 TraceCheckUtils]: 86: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,241 INFO L280 TraceCheckUtils]: 87: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,241 INFO L280 TraceCheckUtils]: 88: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,241 INFO L280 TraceCheckUtils]: 89: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,242 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,242 INFO L263 TraceCheckUtils]: 91: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,242 INFO L280 TraceCheckUtils]: 92: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,243 INFO L280 TraceCheckUtils]: 93: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,243 INFO L280 TraceCheckUtils]: 94: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,243 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,244 INFO L280 TraceCheckUtils]: 96: Hoare triple {29972#(<= 2 main_~i~0)} #t~post7 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,244 INFO L280 TraceCheckUtils]: 97: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,245 INFO L280 TraceCheckUtils]: 98: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,245 INFO L280 TraceCheckUtils]: 99: Hoare triple {29972#(<= 2 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,246 INFO L280 TraceCheckUtils]: 100: Hoare triple {29972#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,246 INFO L263 TraceCheckUtils]: 101: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,246 INFO L280 TraceCheckUtils]: 102: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,247 INFO L280 TraceCheckUtils]: 103: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,247 INFO L280 TraceCheckUtils]: 104: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,248 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,248 INFO L263 TraceCheckUtils]: 106: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,248 INFO L280 TraceCheckUtils]: 107: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,248 INFO L280 TraceCheckUtils]: 108: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,248 INFO L280 TraceCheckUtils]: 109: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,249 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,249 INFO L280 TraceCheckUtils]: 111: Hoare triple {29972#(<= 2 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,250 INFO L280 TraceCheckUtils]: 112: Hoare triple {29972#(<= 2 main_~i~0)} assume 0 != #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,250 INFO L280 TraceCheckUtils]: 113: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,251 INFO L263 TraceCheckUtils]: 114: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,251 INFO L280 TraceCheckUtils]: 115: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,251 INFO L280 TraceCheckUtils]: 116: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,251 INFO L280 TraceCheckUtils]: 117: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,252 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,252 INFO L263 TraceCheckUtils]: 119: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,252 INFO L280 TraceCheckUtils]: 120: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,252 INFO L280 TraceCheckUtils]: 121: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,252 INFO L280 TraceCheckUtils]: 122: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,253 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,253 INFO L263 TraceCheckUtils]: 124: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,253 INFO L280 TraceCheckUtils]: 125: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,254 INFO L280 TraceCheckUtils]: 126: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,254 INFO L280 TraceCheckUtils]: 127: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,255 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,255 INFO L263 TraceCheckUtils]: 129: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,255 INFO L280 TraceCheckUtils]: 130: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,255 INFO L280 TraceCheckUtils]: 131: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,255 INFO L280 TraceCheckUtils]: 132: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,256 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,257 INFO L280 TraceCheckUtils]: 134: Hoare triple {29972#(<= 2 main_~i~0)} #t~post8 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,257 INFO L280 TraceCheckUtils]: 135: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,258 INFO L280 TraceCheckUtils]: 136: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 23:39:08,258 INFO L280 TraceCheckUtils]: 137: Hoare triple {29972#(<= 2 main_~i~0)} #t~post9 := ~i~0; {30005#(<= 2 |main_#t~post9|)} is VALID [2020-07-08 23:39:08,259 INFO L280 TraceCheckUtils]: 138: Hoare triple {30005#(<= 2 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:08,260 INFO L280 TraceCheckUtils]: 139: Hoare triple {30006#(<= 3 main_~i~0)} havoc #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:08,260 INFO L280 TraceCheckUtils]: 140: Hoare triple {30006#(<= 3 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:08,261 INFO L280 TraceCheckUtils]: 141: Hoare triple {30006#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:08,261 INFO L263 TraceCheckUtils]: 142: Hoare triple {30006#(<= 3 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 23:39:08,261 INFO L280 TraceCheckUtils]: 143: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 23:39:08,262 INFO L280 TraceCheckUtils]: 144: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 23:39:08,262 INFO L280 TraceCheckUtils]: 145: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 23:39:08,262 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 23:39:08,263 INFO L263 TraceCheckUtils]: 147: Hoare triple {30006#(<= 3 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {30011#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:39:08,264 INFO L280 TraceCheckUtils]: 148: Hoare triple {30011#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {30012#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:39:08,264 INFO L280 TraceCheckUtils]: 149: Hoare triple {30012#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {29925#false} is VALID [2020-07-08 23:39:08,265 INFO L280 TraceCheckUtils]: 150: Hoare triple {29925#false} assume !false; {29925#false} is VALID [2020-07-08 23:39:08,278 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-08 23:39:08,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1228695876] [2020-07-08 23:39:08,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:39:08,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 23:39:08,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380099647] [2020-07-08 23:39:08,279 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 23:39:08,280 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:39:08,280 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 23:39:08,400 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:08,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 23:39:08,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:39:08,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 23:39:08,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 23:39:08,402 INFO L87 Difference]: Start difference. First operand 572 states and 778 transitions. Second operand 11 states. [2020-07-08 23:39:12,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:12,011 INFO L93 Difference]: Finished difference Result 647 states and 885 transitions. [2020-07-08 23:39:12,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-08 23:39:12,011 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 23:39:12,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:39:12,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:39:12,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 23:39:12,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 23:39:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 23:39:12,018 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-08 23:39:12,323 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:12,346 INFO L225 Difference]: With dead ends: 647 [2020-07-08 23:39:12,346 INFO L226 Difference]: Without dead ends: 641 [2020-07-08 23:39:12,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2020-07-08 23:39:12,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-07-08 23:39:13,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 412. [2020-07-08 23:39:13,762 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:39:13,762 INFO L82 GeneralOperation]: Start isEquivalent. First operand 641 states. Second operand 412 states. [2020-07-08 23:39:13,762 INFO L74 IsIncluded]: Start isIncluded. First operand 641 states. Second operand 412 states. [2020-07-08 23:39:13,762 INFO L87 Difference]: Start difference. First operand 641 states. Second operand 412 states. [2020-07-08 23:39:13,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:13,787 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-08 23:39:13,787 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-08 23:39:13,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:13,789 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:13,789 INFO L74 IsIncluded]: Start isIncluded. First operand 412 states. Second operand 641 states. [2020-07-08 23:39:13,789 INFO L87 Difference]: Start difference. First operand 412 states. Second operand 641 states. [2020-07-08 23:39:13,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:13,812 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-08 23:39:13,812 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-08 23:39:13,814 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:13,814 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:13,814 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:39:13,815 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:39:13,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-08 23:39:13,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 539 transitions. [2020-07-08 23:39:13,826 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 539 transitions. Word has length 151 [2020-07-08 23:39:13,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:39:13,826 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 539 transitions. [2020-07-08 23:39:13,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 23:39:13,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 412 states and 539 transitions. [2020-07-08 23:39:14,844 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 539 edges. 539 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 539 transitions. [2020-07-08 23:39:14,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-08 23:39:14,848 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:39:14,848 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 3, 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, 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, 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, 1, 1, 1] [2020-07-08 23:39:14,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-08 23:39:14,849 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:39:14,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:39:14,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1688386477, now seen corresponding path program 1 times [2020-07-08 23:39:14,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:39:14,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1775637622] [2020-07-08 23:39:14,850 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:39:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,042 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,042 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-08 23:39:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,047 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,047 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,047 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,048 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,053 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,053 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,053 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,054 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,059 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,060 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,064 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,064 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,064 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,065 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,069 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,069 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,070 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,071 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,075 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,075 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,076 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,077 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,081 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,081 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,081 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,082 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,086 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,086 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,087 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,092 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,092 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,092 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,093 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,097 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,098 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,098 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,099 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,103 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,103 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,103 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,104 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,108 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,108 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,108 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,109 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,112 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,113 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,113 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,114 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,117 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,117 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,117 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,118 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,122 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,122 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,122 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,123 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,127 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,127 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,127 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,128 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,131 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,132 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,132 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,133 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,137 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,137 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,138 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,142 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,142 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,142 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,143 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,147 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,147 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,148 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,149 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:15,152 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,153 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,153 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,154 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,154 INFO L263 TraceCheckUtils]: 0: Hoare triple {33433#true} call ULTIMATE.init(); {33433#true} is VALID [2020-07-08 23:39:15,154 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,154 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-08 23:39:15,154 INFO L263 TraceCheckUtils]: 3: Hoare triple {33433#true} call #t~ret10 := main(); {33433#true} is VALID [2020-07-08 23:39:15,155 INFO L280 TraceCheckUtils]: 4: Hoare triple {33433#true} havoc ~len~0; {33433#true} is VALID [2020-07-08 23:39:15,155 INFO L280 TraceCheckUtils]: 5: Hoare triple {33433#true} havoc ~i~0; {33433#true} is VALID [2020-07-08 23:39:15,155 INFO L280 TraceCheckUtils]: 6: Hoare triple {33433#true} havoc ~j~0; {33433#true} is VALID [2020-07-08 23:39:15,155 INFO L280 TraceCheckUtils]: 7: Hoare triple {33433#true} havoc ~bufsize~0; {33433#true} is VALID [2020-07-08 23:39:15,155 INFO L280 TraceCheckUtils]: 8: Hoare triple {33433#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {33433#true} is VALID [2020-07-08 23:39:15,156 INFO L280 TraceCheckUtils]: 9: Hoare triple {33433#true} ~bufsize~0 := #t~nondet0; {33433#true} is VALID [2020-07-08 23:39:15,156 INFO L280 TraceCheckUtils]: 10: Hoare triple {33433#true} havoc #t~nondet0; {33433#true} is VALID [2020-07-08 23:39:15,156 INFO L280 TraceCheckUtils]: 11: Hoare triple {33433#true} assume !(~bufsize~0 < 0); {33433#true} is VALID [2020-07-08 23:39:15,156 INFO L280 TraceCheckUtils]: 12: Hoare triple {33433#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {33433#true} is VALID [2020-07-08 23:39:15,156 INFO L280 TraceCheckUtils]: 13: Hoare triple {33433#true} ~len~0 := #t~nondet1; {33433#true} is VALID [2020-07-08 23:39:15,156 INFO L280 TraceCheckUtils]: 14: Hoare triple {33433#true} havoc #t~nondet1; {33433#true} is VALID [2020-07-08 23:39:15,157 INFO L280 TraceCheckUtils]: 15: Hoare triple {33433#true} ~limit~0 := ~bufsize~0 - 4; {33433#true} is VALID [2020-07-08 23:39:15,157 INFO L280 TraceCheckUtils]: 16: Hoare triple {33433#true} ~i~0 := 0; {33433#true} is VALID [2020-07-08 23:39:15,157 INFO L280 TraceCheckUtils]: 17: Hoare triple {33433#true} assume !!(~i~0 < ~len~0); {33433#true} is VALID [2020-07-08 23:39:15,158 INFO L280 TraceCheckUtils]: 18: Hoare triple {33433#true} ~j~0 := 0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,159 INFO L280 TraceCheckUtils]: 19: Hoare triple {33437#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,159 INFO L280 TraceCheckUtils]: 20: Hoare triple {33437#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,159 INFO L263 TraceCheckUtils]: 21: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,160 INFO L280 TraceCheckUtils]: 22: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,160 INFO L280 TraceCheckUtils]: 23: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,160 INFO L280 TraceCheckUtils]: 24: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,161 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,161 INFO L263 TraceCheckUtils]: 26: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,161 INFO L280 TraceCheckUtils]: 27: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,162 INFO L280 TraceCheckUtils]: 28: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,162 INFO L280 TraceCheckUtils]: 29: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,164 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,164 INFO L280 TraceCheckUtils]: 31: Hoare triple {33437#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,165 INFO L280 TraceCheckUtils]: 32: Hoare triple {33437#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,166 INFO L280 TraceCheckUtils]: 33: Hoare triple {33437#(<= 0 main_~j~0)} havoc #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,166 INFO L263 TraceCheckUtils]: 34: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,166 INFO L280 TraceCheckUtils]: 35: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,166 INFO L280 TraceCheckUtils]: 36: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,167 INFO L280 TraceCheckUtils]: 37: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,167 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,168 INFO L263 TraceCheckUtils]: 39: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,168 INFO L280 TraceCheckUtils]: 40: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,168 INFO L280 TraceCheckUtils]: 41: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,168 INFO L280 TraceCheckUtils]: 42: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,169 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,169 INFO L263 TraceCheckUtils]: 44: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,170 INFO L280 TraceCheckUtils]: 45: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,170 INFO L280 TraceCheckUtils]: 46: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,170 INFO L280 TraceCheckUtils]: 47: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,171 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,171 INFO L263 TraceCheckUtils]: 49: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,171 INFO L280 TraceCheckUtils]: 50: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,172 INFO L280 TraceCheckUtils]: 51: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,172 INFO L280 TraceCheckUtils]: 52: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,172 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:15,173 INFO L280 TraceCheckUtils]: 54: Hoare triple {33437#(<= 0 main_~j~0)} #t~post8 := ~j~0; {33462#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 23:39:15,174 INFO L280 TraceCheckUtils]: 55: Hoare triple {33462#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,175 INFO L280 TraceCheckUtils]: 56: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,175 INFO L280 TraceCheckUtils]: 57: Hoare triple {33463#(<= 1 main_~j~0)} #t~post9 := ~i~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,176 INFO L280 TraceCheckUtils]: 58: Hoare triple {33463#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,176 INFO L280 TraceCheckUtils]: 59: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,177 INFO L280 TraceCheckUtils]: 60: Hoare triple {33463#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,177 INFO L280 TraceCheckUtils]: 61: Hoare triple {33463#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,178 INFO L263 TraceCheckUtils]: 62: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,178 INFO L280 TraceCheckUtils]: 63: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,178 INFO L280 TraceCheckUtils]: 64: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,178 INFO L280 TraceCheckUtils]: 65: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,179 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,179 INFO L263 TraceCheckUtils]: 67: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,179 INFO L280 TraceCheckUtils]: 68: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,179 INFO L280 TraceCheckUtils]: 69: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,180 INFO L280 TraceCheckUtils]: 70: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,180 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,181 INFO L280 TraceCheckUtils]: 72: Hoare triple {33463#(<= 1 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,182 INFO L280 TraceCheckUtils]: 73: Hoare triple {33463#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,182 INFO L280 TraceCheckUtils]: 74: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~nondet2; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,182 INFO L263 TraceCheckUtils]: 75: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,183 INFO L280 TraceCheckUtils]: 76: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,183 INFO L280 TraceCheckUtils]: 77: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,183 INFO L280 TraceCheckUtils]: 78: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,184 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,184 INFO L263 TraceCheckUtils]: 80: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,184 INFO L280 TraceCheckUtils]: 81: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,184 INFO L280 TraceCheckUtils]: 82: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,184 INFO L280 TraceCheckUtils]: 83: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,185 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,185 INFO L263 TraceCheckUtils]: 85: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,186 INFO L280 TraceCheckUtils]: 86: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,186 INFO L280 TraceCheckUtils]: 87: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,186 INFO L280 TraceCheckUtils]: 88: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,187 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,187 INFO L263 TraceCheckUtils]: 90: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,187 INFO L280 TraceCheckUtils]: 91: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,187 INFO L280 TraceCheckUtils]: 92: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,187 INFO L280 TraceCheckUtils]: 93: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,188 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:15,189 INFO L280 TraceCheckUtils]: 95: Hoare triple {33463#(<= 1 main_~j~0)} #t~post3 := ~j~0; {33488#(<= 1 |main_#t~post3|)} is VALID [2020-07-08 23:39:15,190 INFO L280 TraceCheckUtils]: 96: Hoare triple {33488#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,190 INFO L280 TraceCheckUtils]: 97: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,191 INFO L280 TraceCheckUtils]: 98: Hoare triple {33489#(<= 2 main_~j~0)} #t~post4 := ~i~0; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,191 INFO L280 TraceCheckUtils]: 99: Hoare triple {33489#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,192 INFO L280 TraceCheckUtils]: 100: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,192 INFO L263 TraceCheckUtils]: 101: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,192 INFO L280 TraceCheckUtils]: 102: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,192 INFO L280 TraceCheckUtils]: 103: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,192 INFO L280 TraceCheckUtils]: 104: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,193 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,193 INFO L263 TraceCheckUtils]: 106: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,194 INFO L280 TraceCheckUtils]: 107: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,194 INFO L280 TraceCheckUtils]: 108: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,194 INFO L280 TraceCheckUtils]: 109: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,195 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,195 INFO L263 TraceCheckUtils]: 111: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,195 INFO L280 TraceCheckUtils]: 112: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,195 INFO L280 TraceCheckUtils]: 113: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,195 INFO L280 TraceCheckUtils]: 114: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,196 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,196 INFO L263 TraceCheckUtils]: 116: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,196 INFO L280 TraceCheckUtils]: 117: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,197 INFO L280 TraceCheckUtils]: 118: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,197 INFO L280 TraceCheckUtils]: 119: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,197 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:15,198 INFO L280 TraceCheckUtils]: 121: Hoare triple {33489#(<= 2 main_~j~0)} #t~post5 := ~j~0; {33506#(<= 2 |main_#t~post5|)} is VALID [2020-07-08 23:39:15,199 INFO L280 TraceCheckUtils]: 122: Hoare triple {33506#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,200 INFO L280 TraceCheckUtils]: 123: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,200 INFO L280 TraceCheckUtils]: 124: Hoare triple {33507#(<= 3 main_~j~0)} #t~post6 := ~i~0; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,201 INFO L280 TraceCheckUtils]: 125: Hoare triple {33507#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,201 INFO L280 TraceCheckUtils]: 126: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,201 INFO L263 TraceCheckUtils]: 127: Hoare triple {33507#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,202 INFO L280 TraceCheckUtils]: 128: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,202 INFO L280 TraceCheckUtils]: 129: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,202 INFO L280 TraceCheckUtils]: 130: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,203 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,203 INFO L263 TraceCheckUtils]: 132: Hoare triple {33507#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,204 INFO L280 TraceCheckUtils]: 133: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,204 INFO L280 TraceCheckUtils]: 134: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,204 INFO L280 TraceCheckUtils]: 135: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,205 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:15,205 INFO L280 TraceCheckUtils]: 137: Hoare triple {33507#(<= 3 main_~j~0)} #t~post7 := ~j~0; {33516#(<= 3 |main_#t~post7|)} is VALID [2020-07-08 23:39:15,206 INFO L280 TraceCheckUtils]: 138: Hoare triple {33516#(<= 3 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,207 INFO L280 TraceCheckUtils]: 139: Hoare triple {33517#(<= 4 main_~j~0)} havoc #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,208 INFO L280 TraceCheckUtils]: 140: Hoare triple {33517#(<= 4 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,208 INFO L280 TraceCheckUtils]: 141: Hoare triple {33517#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,209 INFO L263 TraceCheckUtils]: 142: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,209 INFO L280 TraceCheckUtils]: 143: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,209 INFO L280 TraceCheckUtils]: 144: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,209 INFO L280 TraceCheckUtils]: 145: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,210 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,210 INFO L263 TraceCheckUtils]: 147: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,210 INFO L280 TraceCheckUtils]: 148: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,210 INFO L280 TraceCheckUtils]: 149: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,211 INFO L280 TraceCheckUtils]: 150: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,211 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,212 INFO L263 TraceCheckUtils]: 152: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 23:39:15,212 INFO L280 TraceCheckUtils]: 153: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 23:39:15,212 INFO L280 TraceCheckUtils]: 154: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 23:39:15,212 INFO L280 TraceCheckUtils]: 155: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 23:39:15,213 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:15,214 INFO L263 TraceCheckUtils]: 157: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33530#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:39:15,214 INFO L280 TraceCheckUtils]: 158: Hoare triple {33530#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {33531#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:39:15,215 INFO L280 TraceCheckUtils]: 159: Hoare triple {33531#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {33434#false} is VALID [2020-07-08 23:39:15,215 INFO L280 TraceCheckUtils]: 160: Hoare triple {33434#false} assume !false; {33434#false} is VALID [2020-07-08 23:39:15,233 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-08 23:39:15,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1775637622] [2020-07-08 23:39:15,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:39:15,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-08 23:39:15,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399574151] [2020-07-08 23:39:15,235 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 23:39:15,235 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:39:15,236 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-08 23:39:15,363 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:15,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-08 23:39:15,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:39:15,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-08 23:39:15,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-08 23:39:15,364 INFO L87 Difference]: Start difference. First operand 412 states and 539 transitions. Second operand 13 states. [2020-07-08 23:39:19,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:19,080 INFO L93 Difference]: Finished difference Result 505 states and 669 transitions. [2020-07-08 23:39:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-08 23:39:19,080 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 23:39:19,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:39:19,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 23:39:19,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-08 23:39:19,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 23:39:19,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-08 23:39:19,085 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 224 transitions. [2020-07-08 23:39:19,374 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 224 edges. 224 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:19,393 INFO L225 Difference]: With dead ends: 505 [2020-07-08 23:39:19,393 INFO L226 Difference]: Without dead ends: 495 [2020-07-08 23:39:19,394 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2020-07-08 23:39:19,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-08 23:39:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 459. [2020-07-08 23:39:20,707 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:39:20,707 INFO L82 GeneralOperation]: Start isEquivalent. First operand 495 states. Second operand 459 states. [2020-07-08 23:39:20,707 INFO L74 IsIncluded]: Start isIncluded. First operand 495 states. Second operand 459 states. [2020-07-08 23:39:20,707 INFO L87 Difference]: Start difference. First operand 495 states. Second operand 459 states. [2020-07-08 23:39:20,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:20,727 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-08 23:39:20,727 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-08 23:39:20,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:20,729 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:20,729 INFO L74 IsIncluded]: Start isIncluded. First operand 459 states. Second operand 495 states. [2020-07-08 23:39:20,729 INFO L87 Difference]: Start difference. First operand 459 states. Second operand 495 states. [2020-07-08 23:39:20,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:20,750 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-08 23:39:20,750 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-08 23:39:20,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:20,752 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:20,752 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:39:20,752 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:39:20,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-08 23:39:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 603 transitions. [2020-07-08 23:39:20,769 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 603 transitions. Word has length 161 [2020-07-08 23:39:20,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:39:20,769 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 603 transitions. [2020-07-08 23:39:20,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-08 23:39:20,770 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 459 states and 603 transitions. [2020-07-08 23:39:21,952 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 603 edges. 603 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:21,952 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 603 transitions. [2020-07-08 23:39:21,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-08 23:39:21,954 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 23:39:21,955 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 3, 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, 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, 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, 1, 1, 1] [2020-07-08 23:39:21,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-08 23:39:21,955 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 23:39:21,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 23:39:21,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1620079197, now seen corresponding path program 2 times [2020-07-08 23:39:21,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 23:39:21,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485478871] [2020-07-08 23:39:21,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 23:39:21,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,170 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,171 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-08 23:39:22,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,174 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,175 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,175 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,176 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,180 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,180 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,181 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,182 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,186 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,187 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,187 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,188 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,192 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,192 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,193 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,194 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,198 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,199 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,200 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,204 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,210 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,211 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,211 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,212 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,217 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,217 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,217 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,218 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,225 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,226 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,226 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,227 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,231 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,232 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,232 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,233 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,238 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,239 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,239 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,240 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,244 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,245 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,245 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,246 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,250 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,251 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,251 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,252 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,257 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,257 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,257 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,258 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,263 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,263 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,263 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,264 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,269 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,269 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,269 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,271 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,275 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,275 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,275 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,277 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,280 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,280 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,281 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,281 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,285 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,285 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,286 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,287 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,292 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,292 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,293 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 23:39:22,297 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,298 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,298 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,299 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,300 INFO L263 TraceCheckUtils]: 0: Hoare triple {36474#true} call ULTIMATE.init(); {36474#true} is VALID [2020-07-08 23:39:22,300 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,300 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-08 23:39:22,300 INFO L263 TraceCheckUtils]: 3: Hoare triple {36474#true} call #t~ret10 := main(); {36474#true} is VALID [2020-07-08 23:39:22,301 INFO L280 TraceCheckUtils]: 4: Hoare triple {36474#true} havoc ~len~0; {36474#true} is VALID [2020-07-08 23:39:22,301 INFO L280 TraceCheckUtils]: 5: Hoare triple {36474#true} havoc ~i~0; {36474#true} is VALID [2020-07-08 23:39:22,301 INFO L280 TraceCheckUtils]: 6: Hoare triple {36474#true} havoc ~j~0; {36474#true} is VALID [2020-07-08 23:39:22,302 INFO L280 TraceCheckUtils]: 7: Hoare triple {36474#true} havoc ~bufsize~0; {36474#true} is VALID [2020-07-08 23:39:22,302 INFO L280 TraceCheckUtils]: 8: Hoare triple {36474#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36474#true} is VALID [2020-07-08 23:39:22,302 INFO L280 TraceCheckUtils]: 9: Hoare triple {36474#true} ~bufsize~0 := #t~nondet0; {36474#true} is VALID [2020-07-08 23:39:22,303 INFO L280 TraceCheckUtils]: 10: Hoare triple {36474#true} havoc #t~nondet0; {36474#true} is VALID [2020-07-08 23:39:22,303 INFO L280 TraceCheckUtils]: 11: Hoare triple {36474#true} assume !(~bufsize~0 < 0); {36474#true} is VALID [2020-07-08 23:39:22,303 INFO L280 TraceCheckUtils]: 12: Hoare triple {36474#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36474#true} is VALID [2020-07-08 23:39:22,303 INFO L280 TraceCheckUtils]: 13: Hoare triple {36474#true} ~len~0 := #t~nondet1; {36474#true} is VALID [2020-07-08 23:39:22,304 INFO L280 TraceCheckUtils]: 14: Hoare triple {36474#true} havoc #t~nondet1; {36474#true} is VALID [2020-07-08 23:39:22,304 INFO L280 TraceCheckUtils]: 15: Hoare triple {36474#true} ~limit~0 := ~bufsize~0 - 4; {36474#true} is VALID [2020-07-08 23:39:22,304 INFO L280 TraceCheckUtils]: 16: Hoare triple {36474#true} ~i~0 := 0; {36474#true} is VALID [2020-07-08 23:39:22,305 INFO L280 TraceCheckUtils]: 17: Hoare triple {36474#true} assume !!(~i~0 < ~len~0); {36474#true} is VALID [2020-07-08 23:39:22,306 INFO L280 TraceCheckUtils]: 18: Hoare triple {36474#true} ~j~0 := 0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,307 INFO L280 TraceCheckUtils]: 19: Hoare triple {36478#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,307 INFO L280 TraceCheckUtils]: 20: Hoare triple {36478#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,308 INFO L263 TraceCheckUtils]: 21: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,308 INFO L280 TraceCheckUtils]: 22: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,308 INFO L280 TraceCheckUtils]: 23: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,309 INFO L280 TraceCheckUtils]: 24: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,310 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,310 INFO L263 TraceCheckUtils]: 26: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,310 INFO L280 TraceCheckUtils]: 27: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,311 INFO L280 TraceCheckUtils]: 28: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,311 INFO L280 TraceCheckUtils]: 29: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,312 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,313 INFO L280 TraceCheckUtils]: 31: Hoare triple {36478#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,314 INFO L280 TraceCheckUtils]: 32: Hoare triple {36478#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,314 INFO L280 TraceCheckUtils]: 33: Hoare triple {36478#(<= 0 main_~j~0)} havoc #t~nondet2; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,315 INFO L263 TraceCheckUtils]: 34: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,315 INFO L280 TraceCheckUtils]: 35: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,315 INFO L280 TraceCheckUtils]: 36: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,316 INFO L280 TraceCheckUtils]: 37: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,317 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,317 INFO L263 TraceCheckUtils]: 39: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,317 INFO L280 TraceCheckUtils]: 40: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,318 INFO L280 TraceCheckUtils]: 41: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,318 INFO L280 TraceCheckUtils]: 42: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,319 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,319 INFO L263 TraceCheckUtils]: 44: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,320 INFO L280 TraceCheckUtils]: 45: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,320 INFO L280 TraceCheckUtils]: 46: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,320 INFO L280 TraceCheckUtils]: 47: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,322 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,322 INFO L263 TraceCheckUtils]: 49: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,322 INFO L280 TraceCheckUtils]: 50: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,323 INFO L280 TraceCheckUtils]: 51: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,323 INFO L280 TraceCheckUtils]: 52: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,324 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 23:39:22,325 INFO L280 TraceCheckUtils]: 54: Hoare triple {36478#(<= 0 main_~j~0)} #t~post3 := ~j~0; {36503#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 23:39:22,326 INFO L280 TraceCheckUtils]: 55: Hoare triple {36503#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,327 INFO L280 TraceCheckUtils]: 56: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,328 INFO L280 TraceCheckUtils]: 57: Hoare triple {36504#(<= 1 main_~j~0)} #t~post4 := ~i~0; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,329 INFO L280 TraceCheckUtils]: 58: Hoare triple {36504#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,330 INFO L280 TraceCheckUtils]: 59: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,330 INFO L263 TraceCheckUtils]: 60: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,330 INFO L280 TraceCheckUtils]: 61: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,330 INFO L280 TraceCheckUtils]: 62: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,331 INFO L280 TraceCheckUtils]: 63: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,332 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,332 INFO L263 TraceCheckUtils]: 65: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,332 INFO L280 TraceCheckUtils]: 66: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,333 INFO L280 TraceCheckUtils]: 67: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,333 INFO L280 TraceCheckUtils]: 68: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,334 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,334 INFO L263 TraceCheckUtils]: 70: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,335 INFO L280 TraceCheckUtils]: 71: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,335 INFO L280 TraceCheckUtils]: 72: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,335 INFO L280 TraceCheckUtils]: 73: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,336 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,337 INFO L263 TraceCheckUtils]: 75: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,337 INFO L280 TraceCheckUtils]: 76: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,337 INFO L280 TraceCheckUtils]: 77: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,337 INFO L280 TraceCheckUtils]: 78: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,338 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 23:39:22,339 INFO L280 TraceCheckUtils]: 80: Hoare triple {36504#(<= 1 main_~j~0)} #t~post5 := ~j~0; {36521#(<= 1 |main_#t~post5|)} is VALID [2020-07-08 23:39:22,340 INFO L280 TraceCheckUtils]: 81: Hoare triple {36521#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,341 INFO L280 TraceCheckUtils]: 82: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,342 INFO L280 TraceCheckUtils]: 83: Hoare triple {36522#(<= 2 main_~j~0)} #t~post6 := ~i~0; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,343 INFO L280 TraceCheckUtils]: 84: Hoare triple {36522#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,344 INFO L280 TraceCheckUtils]: 85: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,344 INFO L263 TraceCheckUtils]: 86: Hoare triple {36522#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,344 INFO L280 TraceCheckUtils]: 87: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,345 INFO L280 TraceCheckUtils]: 88: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,345 INFO L280 TraceCheckUtils]: 89: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,346 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,346 INFO L263 TraceCheckUtils]: 91: Hoare triple {36522#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,346 INFO L280 TraceCheckUtils]: 92: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,347 INFO L280 TraceCheckUtils]: 93: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,347 INFO L280 TraceCheckUtils]: 94: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,348 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 23:39:22,349 INFO L280 TraceCheckUtils]: 96: Hoare triple {36522#(<= 2 main_~j~0)} #t~post7 := ~j~0; {36531#(<= 2 |main_#t~post7|)} is VALID [2020-07-08 23:39:22,350 INFO L280 TraceCheckUtils]: 97: Hoare triple {36531#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,351 INFO L280 TraceCheckUtils]: 98: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,352 INFO L280 TraceCheckUtils]: 99: Hoare triple {36532#(<= 3 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,353 INFO L280 TraceCheckUtils]: 100: Hoare triple {36532#(<= 3 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,353 INFO L263 TraceCheckUtils]: 101: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,353 INFO L280 TraceCheckUtils]: 102: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,354 INFO L280 TraceCheckUtils]: 103: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,354 INFO L280 TraceCheckUtils]: 104: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,355 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,355 INFO L263 TraceCheckUtils]: 106: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,356 INFO L280 TraceCheckUtils]: 107: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,356 INFO L280 TraceCheckUtils]: 108: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,356 INFO L280 TraceCheckUtils]: 109: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,357 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,358 INFO L280 TraceCheckUtils]: 111: Hoare triple {36532#(<= 3 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,359 INFO L280 TraceCheckUtils]: 112: Hoare triple {36532#(<= 3 main_~j~0)} assume 0 != #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,360 INFO L280 TraceCheckUtils]: 113: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,360 INFO L263 TraceCheckUtils]: 114: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,360 INFO L280 TraceCheckUtils]: 115: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,361 INFO L280 TraceCheckUtils]: 116: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,361 INFO L280 TraceCheckUtils]: 117: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,362 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,362 INFO L263 TraceCheckUtils]: 119: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,363 INFO L280 TraceCheckUtils]: 120: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,363 INFO L280 TraceCheckUtils]: 121: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,363 INFO L280 TraceCheckUtils]: 122: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,365 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,365 INFO L263 TraceCheckUtils]: 124: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,365 INFO L280 TraceCheckUtils]: 125: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,366 INFO L280 TraceCheckUtils]: 126: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,366 INFO L280 TraceCheckUtils]: 127: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,367 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,367 INFO L263 TraceCheckUtils]: 129: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,368 INFO L280 TraceCheckUtils]: 130: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,368 INFO L280 TraceCheckUtils]: 131: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,368 INFO L280 TraceCheckUtils]: 132: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,369 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 23:39:22,370 INFO L280 TraceCheckUtils]: 134: Hoare triple {36532#(<= 3 main_~j~0)} #t~post8 := ~j~0; {36557#(<= 3 |main_#t~post8|)} is VALID [2020-07-08 23:39:22,371 INFO L280 TraceCheckUtils]: 135: Hoare triple {36557#(<= 3 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,372 INFO L280 TraceCheckUtils]: 136: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,374 INFO L280 TraceCheckUtils]: 137: Hoare triple {36558#(<= 4 main_~j~0)} #t~post9 := ~i~0; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,374 INFO L280 TraceCheckUtils]: 138: Hoare triple {36558#(<= 4 main_~j~0)} ~i~0 := 1 + #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,375 INFO L280 TraceCheckUtils]: 139: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,376 INFO L280 TraceCheckUtils]: 140: Hoare triple {36558#(<= 4 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,377 INFO L280 TraceCheckUtils]: 141: Hoare triple {36558#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,377 INFO L263 TraceCheckUtils]: 142: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,377 INFO L280 TraceCheckUtils]: 143: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,378 INFO L280 TraceCheckUtils]: 144: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,378 INFO L280 TraceCheckUtils]: 145: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,379 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,379 INFO L263 TraceCheckUtils]: 147: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,380 INFO L280 TraceCheckUtils]: 148: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,380 INFO L280 TraceCheckUtils]: 149: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,380 INFO L280 TraceCheckUtils]: 150: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,381 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,381 INFO L263 TraceCheckUtils]: 152: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 23:39:22,381 INFO L280 TraceCheckUtils]: 153: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 23:39:22,382 INFO L280 TraceCheckUtils]: 154: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 23:39:22,382 INFO L280 TraceCheckUtils]: 155: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 23:39:22,383 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 23:39:22,384 INFO L263 TraceCheckUtils]: 157: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36571#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 23:39:22,385 INFO L280 TraceCheckUtils]: 158: Hoare triple {36571#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {36572#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 23:39:22,388 INFO L280 TraceCheckUtils]: 159: Hoare triple {36572#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {36475#false} is VALID [2020-07-08 23:39:22,388 INFO L280 TraceCheckUtils]: 160: Hoare triple {36475#false} assume !false; {36475#false} is VALID [2020-07-08 23:39:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-08 23:39:22,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485478871] [2020-07-08 23:39:22,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 23:39:22,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-08 23:39:22,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385104319] [2020-07-08 23:39:22,421 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 23:39:22,421 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 23:39:22,422 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-08 23:39:22,593 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:22,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-08 23:39:22,594 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 23:39:22,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-08 23:39:22,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-08 23:39:22,595 INFO L87 Difference]: Start difference. First operand 459 states and 603 transitions. Second operand 13 states. [2020-07-08 23:39:26,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:26,216 INFO L93 Difference]: Finished difference Result 499 states and 659 transitions. [2020-07-08 23:39:26,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-08 23:39:26,216 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 23:39:26,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 23:39:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 23:39:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-08 23:39:26,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 23:39:26,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-08 23:39:26,224 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 221 transitions. [2020-07-08 23:39:26,527 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 221 edges. 221 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:26,528 INFO L225 Difference]: With dead ends: 499 [2020-07-08 23:39:26,528 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 23:39:26,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2020-07-08 23:39:26,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 23:39:26,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 23:39:26,531 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 23:39:26,531 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 23:39:26,531 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 23:39:26,531 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 23:39:26,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:26,531 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 23:39:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 23:39:26,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:26,532 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:26,532 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 23:39:26,532 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 23:39:26,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 23:39:26,532 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 23:39:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 23:39:26,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:26,532 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 23:39:26,532 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 23:39:26,533 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 23:39:26,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 23:39:26,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 23:39:26,533 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-07-08 23:39:26,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 23:39:26,533 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 23:39:26,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-08 23:39:26,533 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 23:39:26,533 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 23:39:26,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 23:39:26,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 23:39:26,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-08 23:39:26,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 23:39:27,422 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 41 [2020-07-08 23:39:28,454 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2020-07-08 23:39:29,002 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 23 [2020-07-08 23:39:29,395 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 25 [2020-07-08 23:39:29,942 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 22 [2020-07-08 23:39:30,062 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 22 [2020-07-08 23:39:30,483 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 23 [2020-07-08 23:39:30,907 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2020-07-08 23:39:31,380 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 16 [2020-07-08 23:39:32,039 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2020-07-08 23:39:32,651 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 11 [2020-07-08 23:39:32,889 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 16 [2020-07-08 23:39:33,225 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 23 [2020-07-08 23:39:33,729 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 26 [2020-07-08 23:39:34,144 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 23:39:34,144 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-08 23:39:34,144 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-08 23:39:34,144 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 23:39:34,145 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 23:39:34,145 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-08 23:39:34,145 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-08 23:39:34,145 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-08 23:39:34,145 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-08 23:39:34,145 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-08 23:39:34,145 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-08 23:39:34,146 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,146 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,146 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 56) the Hoare annotation is: true [2020-07-08 23:39:34,146 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~limit~0 4) main_~bufsize~0) [2020-07-08 23:39:34,147 INFO L264 CegarLoopResult]: At program point L23-3(lines 23 54) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0) (and .cse0 (<= main_~len~0 main_~i~0)))) [2020-07-08 23:39:34,147 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-08 23:39:34,147 INFO L271 CegarLoopResult]: At program point L23-4(lines 23 54) the Hoare annotation is: true [2020-07-08 23:39:34,147 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-07-08 23:39:34,147 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-07-08 23:39:34,147 INFO L264 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (< main_~i~0 main_~len~0)) (.cse3 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0 .cse1 .cse2 .cse3) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1 .cse3 .cse2))) [2020-07-08 23:39:34,148 INFO L264 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,148 INFO L264 CegarLoopResult]: At program point L40-1(line 40) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 |main_#t~post6|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,148 INFO L264 CegarLoopResult]: At program point L40-2(line 40) the Hoare annotation is: (and (<= 2 main_~i~0) (<= 1 |main_#t~post6|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 23:39:34,148 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,148 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,149 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,149 INFO L264 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,149 INFO L264 CegarLoopResult]: At program point L28-3(line 28) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,149 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< main_~i~0 main_~len~0)) [2020-07-08 23:39:34,149 INFO L264 CegarLoopResult]: At program point L24-3(lines 24 53) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0 (<= 0 main_~j~0)) (and .cse0 (<= main_~len~0 main_~i~0)))) [2020-07-08 23:39:34,149 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-08 23:39:34,149 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 1)) (.cse1 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= main_~len~0 .cse0) .cse1 (< main_~i~0 main_~len~0) .cse2) (and (<= 0 main_~i~0) (< .cse0 main_~len~0) .cse1 .cse2 (<= 0 main_~j~0)))) [2020-07-08 23:39:34,150 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L45(lines 25 52) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (and (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (and (<= 0 main_~i~0) (<= 0 |main_#t~post3|) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= (+ |main_#t~post3| 5) main_~bufsize~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (and (<= 0 main_~i~0) (<= 1 main_~j~0) (<= 0 |main_#t~post3|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= (+ |main_#t~post3| 5) main_~bufsize~0)) [2020-07-08 23:39:34,150 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,151 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,151 INFO L264 CegarLoopResult]: At program point L25(lines 25 52) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,151 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-08 23:39:34,151 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-07-08 23:39:34,151 INFO L271 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: true [2020-07-08 23:39:34,151 INFO L264 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 1)) (.cse1 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= 0 main_~i~0) (<= 0 |main_#t~post8|) (< .cse0 main_~len~0) .cse1 .cse2 (<= 0 main_~j~0)) (and (<= main_~len~0 .cse0) .cse1 (< main_~i~0 main_~len~0) .cse2))) [2020-07-08 23:39:34,151 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-08 23:39:34,151 INFO L264 CegarLoopResult]: At program point L50-1(line 50) the Hoare annotation is: (let ((.cse1 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse0 (+ main_~i~0 1))) (or (and (<= main_~len~0 .cse0) .cse1 (< main_~i~0 main_~len~0)) (and (<= 0 main_~i~0) (<= 0 |main_#t~post8|) (<= 1 main_~j~0) .cse1 (< .cse0 main_~len~0)))) [2020-07-08 23:39:34,151 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,152 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 56) the Hoare annotation is: true [2020-07-08 23:39:34,152 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 23:39:34,152 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,152 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (and (<= 0 main_~i~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0)) [2020-07-08 23:39:34,152 INFO L264 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ |main_#t~post4| 2) main_~len~0) (<= 0 |main_#t~post4|) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0)) [2020-07-08 23:39:34,152 INFO L264 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= (+ |main_#t~post4| 2) main_~len~0) (<= 0 |main_#t~post4|) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,152 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,152 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 56) the Hoare annotation is: true [2020-07-08 23:39:34,152 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,153 INFO L264 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 23:39:34,153 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-08 23:39:34,153 INFO L264 CegarLoopResult]: At program point L51(line 51) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (< main_~i~0 main_~len~0))) (or (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1) (and (<= 0 main_~i~0) (<= 1 main_~j~0) .cse0 .cse1))) [2020-07-08 23:39:34,153 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-08 23:39:34,153 INFO L264 CegarLoopResult]: At program point L51-1(line 51) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 1)) (.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 0 main_~i~0) (<= 1 main_~j~0) (<= 0 |main_#t~post9|) .cse0 (< .cse1 main_~len~0)) (and (<= main_~len~0 .cse1) .cse0 (<= main_~len~0 (+ |main_#t~post9| 1)) (< main_~i~0 main_~len~0)))) [2020-07-08 23:39:34,153 INFO L264 CegarLoopResult]: At program point L51-2(line 51) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 1 main_~j~0) (<= 0 |main_#t~post9|) .cse0 (<= 1 main_~i~0)) (and .cse0 (<= main_~len~0 (+ |main_#t~post9| 1)) (<= main_~len~0 main_~i~0)))) [2020-07-08 23:39:34,153 INFO L264 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (< main_~i~0 main_~len~0)) (.cse3 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0 .cse1 .cse2 .cse3) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1 .cse3 .cse2))) [2020-07-08 23:39:34,153 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (and (<= 2 |main_#t~post7|) (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 23:39:34,153 INFO L264 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (and (<= 2 |main_#t~post7|) (<= 2 main_~i~0) (<= 3 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0)) [2020-07-08 23:39:34,154 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 |main_#t~post5|) (<= 1 main_~j~0) (<= (+ |main_#t~post5| 4) main_~bufsize~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,154 INFO L264 CegarLoopResult]: At program point L39-1(line 39) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 |main_#t~post5|) (<= (+ |main_#t~post5| 4) main_~bufsize~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,154 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,154 INFO L264 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 23:39:34,154 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-08 23:39:34,154 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 23:39:34,154 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 23:39:34,154 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 23:39:34,155 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 23:39:34,155 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 23:39:34,159 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-08 23:39:34,160 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-08 23:39:34,160 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-08 23:39:34,161 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-08 23:39:34,161 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-08 23:39:34,209 INFO L163 areAnnotationChecker]: CFG has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 23:39:34,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 11:39:34 BoogieIcfgContainer [2020-07-08 23:39:34,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 23:39:34,227 INFO L168 Benchmark]: Toolchain (without parser) took 88578.66 ms. Allocated memory was 137.9 MB in the beginning and 606.1 MB in the end (delta: 468.2 MB). Free memory was 101.3 MB in the beginning and 141.1 MB in the end (delta: -39.9 MB). Peak memory consumption was 428.3 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:34,228 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-08 23:39:34,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.75 ms. Allocated memory is still 137.9 MB. Free memory was 100.9 MB in the beginning and 89.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:34,229 INFO L168 Benchmark]: Boogie Preprocessor took 134.84 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 89.9 MB in the beginning and 181.7 MB in the end (delta: -91.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:34,229 INFO L168 Benchmark]: RCFGBuilder took 566.74 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 148.0 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:34,230 INFO L168 Benchmark]: TraceAbstraction took 87588.20 ms. Allocated memory was 203.4 MB in the beginning and 606.1 MB in the end (delta: 402.7 MB). Free memory was 148.0 MB in the beginning and 141.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 409.5 MB. Max. memory is 7.1 GB. [2020-07-08 23:39:34,232 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.9 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.75 ms. Allocated memory is still 137.9 MB. Free memory was 100.9 MB in the beginning and 89.9 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 134.84 ms. Allocated memory was 137.9 MB in the beginning and 203.4 MB in the end (delta: 65.5 MB). Free memory was 89.9 MB in the beginning and 181.7 MB in the end (delta: -91.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 566.74 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 148.0 MB in the end (delta: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 87588.20 ms. Allocated memory was 203.4 MB in the beginning and 606.1 MB in the end (delta: 402.7 MB). Free memory was 148.0 MB in the beginning and 141.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 409.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((0 <= i && limit + 4 <= bufsize) && 0 <= j) && i < len) && j + 5 <= bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= i && limit + 4 <= bufsize) || (limit + 4 <= bufsize && len <= i) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((0 <= i && limit + 4 <= bufsize) && 0 <= j) || (limit + 4 <= bufsize && len <= i) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 79.8s, OverallIterations: 23, TraceHistogramMax: 22, AutomataDifference: 45.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2525 SDtfs, 801 SDslu, 12588 SDs, 0 SdLazy, 3823 SolverSat, 428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 811 GetRequests, 554 SyntacticMatches, 1 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=572occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 542 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 74 LocationsWithAnnotation, 1484 PreInvPairs, 2305 NumberOfFragments, 1186 HoareAnnotationTreeSize, 1484 FomulaSimplifications, 3717248 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 74 FomulaSimplificationsInter, 276705 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2056 NumberOfCodeBlocks, 2056 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 2033 ConstructedInterpolants, 0 QuantifiedInterpolants, 394477 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 23 PerfectInterpolantSequences, 6694/6694 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...