/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 0.1.25-8fc6572 [2020-07-11 02:29:13,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-11 02:29:13,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-11 02:29:13,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-11 02:29:13,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-11 02:29:13,491 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-11 02:29:13,493 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-11 02:29:13,503 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-11 02:29:13,506 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-11 02:29:13,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-11 02:29:13,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-11 02:29:13,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-11 02:29:13,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-11 02:29:13,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-11 02:29:13,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-11 02:29:13,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-11 02:29:13,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-11 02:29:13,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-11 02:29:13,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-11 02:29:13,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-11 02:29:13,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-11 02:29:13,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-11 02:29:13,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-11 02:29:13,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-11 02:29:13,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-11 02:29:13,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-11 02:29:13,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-11 02:29:13,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-11 02:29:13,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-11 02:29:13,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-11 02:29:13,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-11 02:29:13,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-11 02:29:13,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-11 02:29:13,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-11 02:29:13,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-11 02:29:13,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-11 02:29:13,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-11 02:29:13,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-11 02:29:13,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-11 02:29:13,593 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-11 02:29:13,593 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-11 02:29:13,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-11 02:29:13,594 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-11 02:29:13,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-11 02:29:13,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-11 02:29:13,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-11 02:29:13,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-11 02:29:13,598 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-11 02:29:13,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-11 02:29:13,598 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-11 02:29:13,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-11 02:29:13,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-11 02:29:13,599 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-11 02:29:13,599 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-11 02:29:13,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-11 02:29:13,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-11 02:29:13,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-11 02:29:13,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-11 02:29:13,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-11 02:29:13,600 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 [2020-07-11 02:29:13,947 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-11 02:29:13,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-11 02:29:13,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-11 02:29:13,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-11 02:29:13,968 INFO L275 PluginConnector]: CDTParser initialized [2020-07-11 02:29:13,969 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-11 02:29:14,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916592235/0dd66a9a0275453b87abaa264aeb0ed2/FLAGc081cbcf8 [2020-07-11 02:29:14,579 INFO L306 CDTParser]: Found 1 translation units. [2020-07-11 02:29:14,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-11 02:29:14,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916592235/0dd66a9a0275453b87abaa264aeb0ed2/FLAGc081cbcf8 [2020-07-11 02:29:14,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/916592235/0dd66a9a0275453b87abaa264aeb0ed2 [2020-07-11 02:29:14,919 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-11 02:29:14,922 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-11 02:29:14,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-11 02:29:14,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-11 02:29:14,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-11 02:29:14,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 02:29:14" (1/1) ... [2020-07-11 02:29:14,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bea63f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:14, skipping insertion in model container [2020-07-11 02:29:14,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.07 02:29:14" (1/1) ... [2020-07-11 02:29:14,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-11 02:29:14,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-11 02:29:15,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 02:29:15,218 INFO L203 MainTranslator]: Completed pre-run [2020-07-11 02:29:15,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-11 02:29:15,259 INFO L208 MainTranslator]: Completed translation [2020-07-11 02:29:15,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15 WrapperNode [2020-07-11 02:29:15,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-11 02:29:15,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-11 02:29:15,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-11 02:29:15,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-11 02:29:15,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (1/1) ... [2020-07-11 02:29:15,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (1/1) ... [2020-07-11 02:29:15,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (1/1) ... [2020-07-11 02:29:15,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (1/1) ... [2020-07-11 02:29:15,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (1/1) ... [2020-07-11 02:29:15,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (1/1) ... [2020-07-11 02:29:15,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (1/1) ... [2020-07-11 02:29:15,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-11 02:29:15,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-11 02:29:15,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-11 02:29:15,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-11 02:29:15,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (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 [2020-07-11 02:29:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-11 02:29:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-11 02:29:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-11 02:29:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-11 02:29:15,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-11 02:29:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-11 02:29:15,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-11 02:29:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-11 02:29:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-11 02:29:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-11 02:29:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-11 02:29:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-11 02:29:15,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-11 02:29:16,007 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-11 02:29:16,007 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-11 02:29:16,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 02:29:16 BoogieIcfgContainer [2020-07-11 02:29:16,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-11 02:29:16,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-11 02:29:16,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-11 02:29:16,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-11 02:29:16,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.07 02:29:14" (1/3) ... [2020-07-11 02:29:16,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f7debf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 02:29:16, skipping insertion in model container [2020-07-11 02:29:16,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.07 02:29:15" (2/3) ... [2020-07-11 02:29:16,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f7debf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.07 02:29:16, skipping insertion in model container [2020-07-11 02:29:16,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.07 02:29:16" (3/3) ... [2020-07-11 02:29:16,030 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2020-07-11 02:29:16,041 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-11 02:29:16,049 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-11 02:29:16,062 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-11 02:29:16,085 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-11 02:29:16,086 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-11 02:29:16,086 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-11 02:29:16,086 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-11 02:29:16,087 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-11 02:29:16,087 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-11 02:29:16,087 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-11 02:29:16,087 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-11 02:29:16,104 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-11 02:29:16,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-11 02:29:16,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:16,117 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] [2020-07-11 02:29:16,117 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:16,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:16,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1441743938, now seen corresponding path program 1 times [2020-07-11 02:29:16,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:16,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [123316548] [2020-07-11 02:29:16,130 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:16,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:16,390 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-11 02:29:16,391 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-11 02:29:16,395 INFO L263 TraceCheckUtils]: 0: Hoare triple {77#true} call ULTIMATE.init(); {77#true} is VALID [2020-07-11 02:29:16,396 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-11 02:29:16,397 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-11 02:29:16,397 INFO L263 TraceCheckUtils]: 3: Hoare triple {77#true} call #t~ret10 := main(); {77#true} is VALID [2020-07-11 02:29:16,398 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} havoc ~len~0; {77#true} is VALID [2020-07-11 02:29:16,398 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-11 02:29:16,399 INFO L280 TraceCheckUtils]: 6: Hoare triple {77#true} havoc ~j~0; {77#true} is VALID [2020-07-11 02:29:16,399 INFO L280 TraceCheckUtils]: 7: Hoare triple {77#true} havoc ~bufsize~0; {77#true} is VALID [2020-07-11 02:29:16,399 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-11 02:29:16,400 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~bufsize~0 := #t~nondet0; {77#true} is VALID [2020-07-11 02:29:16,400 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-11 02:29:16,401 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~bufsize~0 < 0); {77#true} is VALID [2020-07-11 02:29:16,401 INFO L280 TraceCheckUtils]: 12: Hoare triple {77#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {77#true} is VALID [2020-07-11 02:29:16,401 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~len~0 := #t~nondet1; {77#true} is VALID [2020-07-11 02:29:16,402 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} havoc #t~nondet1; {77#true} is VALID [2020-07-11 02:29:16,402 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} ~limit~0 := ~bufsize~0 - 4; {77#true} is VALID [2020-07-11 02:29:16,403 INFO L280 TraceCheckUtils]: 16: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-11 02:29:16,403 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} assume !!(~i~0 < ~len~0); {77#true} is VALID [2020-07-11 02:29:16,403 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#true} ~j~0 := 0; {77#true} is VALID [2020-07-11 02:29:16,405 INFO L280 TraceCheckUtils]: 19: Hoare triple {77#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {77#true} is VALID [2020-07-11 02:29:16,407 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} assume 1 + ~i~0 < ~len~0; {81#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-11 02:29:16,410 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 [2020-07-11 02:29:16,414 INFO L280 TraceCheckUtils]: 22: Hoare triple {82#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {83#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:16,416 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {78#false} is VALID [2020-07-11 02:29:16,416 INFO L280 TraceCheckUtils]: 24: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-11 02:29:16,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 02:29:16,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [123316548] [2020-07-11 02:29:16,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:16,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-11 02:29:16,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483619574] [2020-07-11 02:29:16,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-11 02:29:16,444 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:16,449 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-11 02:29:16,524 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:16,525 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-11 02:29:16,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:16,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-11 02:29:16,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-11 02:29:16,541 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-07-11 02:29:17,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:17,330 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2020-07-11 02:29:17,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-11 02:29:17,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-11 02:29:17,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:17,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:17,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-11 02:29:17,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-11 02:29:17,366 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 210 transitions. [2020-07-11 02:29:17,671 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:17,688 INFO L225 Difference]: With dead ends: 143 [2020-07-11 02:29:17,689 INFO L226 Difference]: Without dead ends: 81 [2020-07-11 02:29:17,695 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 [2020-07-11 02:29:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-11 02:29:17,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2020-07-11 02:29:17,806 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:17,806 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 73 states. [2020-07-11 02:29:17,807 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 73 states. [2020-07-11 02:29:17,808 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 73 states. [2020-07-11 02:29:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:17,820 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-11 02:29:17,820 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-11 02:29:17,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:17,823 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:17,823 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 81 states. [2020-07-11 02:29:17,823 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 81 states. [2020-07-11 02:29:17,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:17,833 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-11 02:29:17,834 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-11 02:29:17,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:17,837 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:17,837 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:17,837 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:17,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-11 02:29:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2020-07-11 02:29:17,848 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 25 [2020-07-11 02:29:17,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:17,848 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2020-07-11 02:29:17,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-11 02:29:17,849 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 91 transitions. [2020-07-11 02:29:17,981 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2020-07-11 02:29:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-11 02:29:17,982 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:17,982 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] [2020-07-11 02:29:17,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-11 02:29:17,983 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:17,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:17,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1406858677, now seen corresponding path program 1 times [2020-07-11 02:29:17,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:17,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428327729] [2020-07-11 02:29:17,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:18,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:18,055 INFO L280 TraceCheckUtils]: 0: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-11 02:29:18,056 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-11 02:29:18,056 INFO L263 TraceCheckUtils]: 0: Hoare triple {682#true} call ULTIMATE.init(); {682#true} is VALID [2020-07-11 02:29:18,057 INFO L280 TraceCheckUtils]: 1: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-11 02:29:18,057 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-11 02:29:18,057 INFO L263 TraceCheckUtils]: 3: Hoare triple {682#true} call #t~ret10 := main(); {682#true} is VALID [2020-07-11 02:29:18,057 INFO L280 TraceCheckUtils]: 4: Hoare triple {682#true} havoc ~len~0; {682#true} is VALID [2020-07-11 02:29:18,058 INFO L280 TraceCheckUtils]: 5: Hoare triple {682#true} havoc ~i~0; {682#true} is VALID [2020-07-11 02:29:18,058 INFO L280 TraceCheckUtils]: 6: Hoare triple {682#true} havoc ~j~0; {682#true} is VALID [2020-07-11 02:29:18,058 INFO L280 TraceCheckUtils]: 7: Hoare triple {682#true} havoc ~bufsize~0; {682#true} is VALID [2020-07-11 02:29:18,059 INFO L280 TraceCheckUtils]: 8: Hoare triple {682#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {682#true} is VALID [2020-07-11 02:29:18,059 INFO L280 TraceCheckUtils]: 9: Hoare triple {682#true} ~bufsize~0 := #t~nondet0; {682#true} is VALID [2020-07-11 02:29:18,059 INFO L280 TraceCheckUtils]: 10: Hoare triple {682#true} havoc #t~nondet0; {682#true} is VALID [2020-07-11 02:29:18,060 INFO L280 TraceCheckUtils]: 11: Hoare triple {682#true} assume !(~bufsize~0 < 0); {682#true} is VALID [2020-07-11 02:29:18,060 INFO L280 TraceCheckUtils]: 12: Hoare triple {682#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {682#true} is VALID [2020-07-11 02:29:18,060 INFO L280 TraceCheckUtils]: 13: Hoare triple {682#true} ~len~0 := #t~nondet1; {682#true} is VALID [2020-07-11 02:29:18,061 INFO L280 TraceCheckUtils]: 14: Hoare triple {682#true} havoc #t~nondet1; {682#true} is VALID [2020-07-11 02:29:18,061 INFO L280 TraceCheckUtils]: 15: Hoare triple {682#true} ~limit~0 := ~bufsize~0 - 4; {682#true} is VALID [2020-07-11 02:29:18,061 INFO L280 TraceCheckUtils]: 16: Hoare triple {682#true} ~i~0 := 0; {682#true} is VALID [2020-07-11 02:29:18,062 INFO L280 TraceCheckUtils]: 17: Hoare triple {682#true} assume !!(~i~0 < ~len~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-11 02:29:18,063 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 [2020-07-11 02:29:18,063 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 [2020-07-11 02:29:18,064 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 [2020-07-11 02:29:18,066 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 [2020-07-11 02:29:18,067 INFO L280 TraceCheckUtils]: 22: Hoare triple {687#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {688#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:18,067 INFO L280 TraceCheckUtils]: 23: Hoare triple {688#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {683#false} is VALID [2020-07-11 02:29:18,068 INFO L280 TraceCheckUtils]: 24: Hoare triple {683#false} assume !false; {683#false} is VALID [2020-07-11 02:29:18,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 02:29:18,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428327729] [2020-07-11 02:29:18,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:18,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-11 02:29:18,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654940904] [2020-07-11 02:29:18,073 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-11 02:29:18,073 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:18,073 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-11 02:29:18,107 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:18,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-11 02:29:18,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:18,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-11 02:29:18,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-11 02:29:18,109 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 5 states. [2020-07-11 02:29:18,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:18,567 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-07-11 02:29:18,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-11 02:29:18,568 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-11 02:29:18,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:18,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:18,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-11 02:29:18,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:18,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-11 02:29:18,574 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 94 transitions. [2020-07-11 02:29:18,691 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:18,698 INFO L225 Difference]: With dead ends: 85 [2020-07-11 02:29:18,699 INFO L226 Difference]: Without dead ends: 83 [2020-07-11 02:29:18,700 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 [2020-07-11 02:29:18,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-11 02:29:18,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-07-11 02:29:18,808 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:18,808 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 81 states. [2020-07-11 02:29:18,808 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 81 states. [2020-07-11 02:29:18,808 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 81 states. [2020-07-11 02:29:18,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:18,814 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-11 02:29:18,814 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-11 02:29:18,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:18,816 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:18,816 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 83 states. [2020-07-11 02:29:18,816 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 83 states. [2020-07-11 02:29:18,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:18,822 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-11 02:29:18,822 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-11 02:29:18,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:18,823 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:18,823 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:18,824 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:18,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-11 02:29:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2020-07-11 02:29:18,829 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 25 [2020-07-11 02:29:18,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:18,829 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2020-07-11 02:29:18,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-11 02:29:18,829 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 97 transitions. [2020-07-11 02:29:18,944 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:18,944 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2020-07-11 02:29:18,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-11 02:29:18,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:18,946 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] [2020-07-11 02:29:18,947 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-11 02:29:18,948 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:18,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:18,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1771333938, now seen corresponding path program 1 times [2020-07-11 02:29:18,948 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:18,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [79680364] [2020-07-11 02:29:18,949 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:19,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:19,049 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-11 02:29:19,049 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-11 02:29:19,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:19,058 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-11 02:29:19,058 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-11 02:29:19,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-11 02:29:19,060 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:19,060 INFO L263 TraceCheckUtils]: 0: Hoare triple {1191#true} call ULTIMATE.init(); {1191#true} is VALID [2020-07-11 02:29:19,061 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-11 02:29:19,061 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-11 02:29:19,061 INFO L263 TraceCheckUtils]: 3: Hoare triple {1191#true} call #t~ret10 := main(); {1191#true} is VALID [2020-07-11 02:29:19,061 INFO L280 TraceCheckUtils]: 4: Hoare triple {1191#true} havoc ~len~0; {1191#true} is VALID [2020-07-11 02:29:19,062 INFO L280 TraceCheckUtils]: 5: Hoare triple {1191#true} havoc ~i~0; {1191#true} is VALID [2020-07-11 02:29:19,062 INFO L280 TraceCheckUtils]: 6: Hoare triple {1191#true} havoc ~j~0; {1191#true} is VALID [2020-07-11 02:29:19,062 INFO L280 TraceCheckUtils]: 7: Hoare triple {1191#true} havoc ~bufsize~0; {1191#true} is VALID [2020-07-11 02:29:19,063 INFO L280 TraceCheckUtils]: 8: Hoare triple {1191#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1191#true} is VALID [2020-07-11 02:29:19,063 INFO L280 TraceCheckUtils]: 9: Hoare triple {1191#true} ~bufsize~0 := #t~nondet0; {1191#true} is VALID [2020-07-11 02:29:19,063 INFO L280 TraceCheckUtils]: 10: Hoare triple {1191#true} havoc #t~nondet0; {1191#true} is VALID [2020-07-11 02:29:19,064 INFO L280 TraceCheckUtils]: 11: Hoare triple {1191#true} assume !(~bufsize~0 < 0); {1191#true} is VALID [2020-07-11 02:29:19,064 INFO L280 TraceCheckUtils]: 12: Hoare triple {1191#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1191#true} is VALID [2020-07-11 02:29:19,064 INFO L280 TraceCheckUtils]: 13: Hoare triple {1191#true} ~len~0 := #t~nondet1; {1191#true} is VALID [2020-07-11 02:29:19,064 INFO L280 TraceCheckUtils]: 14: Hoare triple {1191#true} havoc #t~nondet1; {1191#true} is VALID [2020-07-11 02:29:19,065 INFO L280 TraceCheckUtils]: 15: Hoare triple {1191#true} ~limit~0 := ~bufsize~0 - 4; {1191#true} is VALID [2020-07-11 02:29:19,066 INFO L280 TraceCheckUtils]: 16: Hoare triple {1191#true} ~i~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:19,068 INFO L280 TraceCheckUtils]: 17: Hoare triple {1195#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {1195#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:19,069 INFO L280 TraceCheckUtils]: 18: Hoare triple {1195#(<= 0 main_~i~0)} ~j~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:19,070 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 [2020-07-11 02:29:19,071 INFO L280 TraceCheckUtils]: 20: Hoare triple {1195#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:19,071 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 [2020-07-11 02:29:19,072 INFO L280 TraceCheckUtils]: 22: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-11 02:29:19,072 INFO L280 TraceCheckUtils]: 23: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-11 02:29:19,072 INFO L280 TraceCheckUtils]: 24: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-11 02:29:19,073 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:19,075 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 [2020-07-11 02:29:19,076 INFO L280 TraceCheckUtils]: 27: Hoare triple {1200#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1201#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:19,077 INFO L280 TraceCheckUtils]: 28: Hoare triple {1201#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1192#false} is VALID [2020-07-11 02:29:19,077 INFO L280 TraceCheckUtils]: 29: Hoare triple {1192#false} assume !false; {1192#false} is VALID [2020-07-11 02:29:19,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-11 02:29:19,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [79680364] [2020-07-11 02:29:19,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:19,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-11 02:29:19,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123045305] [2020-07-11 02:29:19,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-11 02:29:19,081 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:19,081 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-11 02:29:19,112 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:19,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-11 02:29:19,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:19,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-11 02:29:19,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-11 02:29:19,113 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand 5 states. [2020-07-11 02:29:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:19,645 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2020-07-11 02:29:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-11 02:29:19,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-11 02:29:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:19,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:19,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-11 02:29:19,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-11 02:29:19,653 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 132 transitions. [2020-07-11 02:29:19,818 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:19,824 INFO L225 Difference]: With dead ends: 116 [2020-07-11 02:29:19,824 INFO L226 Difference]: Without dead ends: 114 [2020-07-11 02:29:19,825 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 [2020-07-11 02:29:19,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-11 02:29:19,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2020-07-11 02:29:19,937 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:19,937 INFO L82 GeneralOperation]: Start isEquivalent. First operand 114 states. Second operand 100 states. [2020-07-11 02:29:19,937 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 100 states. [2020-07-11 02:29:19,937 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 100 states. [2020-07-11 02:29:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:19,945 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-11 02:29:19,945 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-11 02:29:19,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:19,946 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:19,946 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 114 states. [2020-07-11 02:29:19,946 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 114 states. [2020-07-11 02:29:19,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:19,954 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-11 02:29:19,954 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-11 02:29:19,955 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:19,955 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:19,955 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:19,955 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:19,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-11 02:29:19,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2020-07-11 02:29:19,961 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 30 [2020-07-11 02:29:19,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:19,962 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2020-07-11 02:29:19,962 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-11 02:29:19,962 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 125 transitions. [2020-07-11 02:29:20,133 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:20,133 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2020-07-11 02:29:20,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-11 02:29:20,134 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:20,134 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] [2020-07-11 02:29:20,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-11 02:29:20,135 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:20,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:20,135 INFO L82 PathProgramCache]: Analyzing trace with hash 456630219, now seen corresponding path program 1 times [2020-07-11 02:29:20,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:20,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745790292] [2020-07-11 02:29:20,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:20,240 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-11 02:29:20,240 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-11 02:29:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:20,248 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-11 02:29:20,248 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-11 02:29:20,249 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-11 02:29:20,250 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 [2020-07-11 02:29:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:20,257 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-11 02:29:20,257 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-11 02:29:20,258 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-11 02:29:20,259 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 [2020-07-11 02:29:20,259 INFO L263 TraceCheckUtils]: 0: Hoare triple {1866#true} call ULTIMATE.init(); {1866#true} is VALID [2020-07-11 02:29:20,259 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-11 02:29:20,260 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-11 02:29:20,260 INFO L263 TraceCheckUtils]: 3: Hoare triple {1866#true} call #t~ret10 := main(); {1866#true} is VALID [2020-07-11 02:29:20,260 INFO L280 TraceCheckUtils]: 4: Hoare triple {1866#true} havoc ~len~0; {1866#true} is VALID [2020-07-11 02:29:20,261 INFO L280 TraceCheckUtils]: 5: Hoare triple {1866#true} havoc ~i~0; {1866#true} is VALID [2020-07-11 02:29:20,261 INFO L280 TraceCheckUtils]: 6: Hoare triple {1866#true} havoc ~j~0; {1866#true} is VALID [2020-07-11 02:29:20,261 INFO L280 TraceCheckUtils]: 7: Hoare triple {1866#true} havoc ~bufsize~0; {1866#true} is VALID [2020-07-11 02:29:20,261 INFO L280 TraceCheckUtils]: 8: Hoare triple {1866#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1866#true} is VALID [2020-07-11 02:29:20,262 INFO L280 TraceCheckUtils]: 9: Hoare triple {1866#true} ~bufsize~0 := #t~nondet0; {1866#true} is VALID [2020-07-11 02:29:20,262 INFO L280 TraceCheckUtils]: 10: Hoare triple {1866#true} havoc #t~nondet0; {1866#true} is VALID [2020-07-11 02:29:20,262 INFO L280 TraceCheckUtils]: 11: Hoare triple {1866#true} assume !(~bufsize~0 < 0); {1866#true} is VALID [2020-07-11 02:29:20,263 INFO L280 TraceCheckUtils]: 12: Hoare triple {1866#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1866#true} is VALID [2020-07-11 02:29:20,263 INFO L280 TraceCheckUtils]: 13: Hoare triple {1866#true} ~len~0 := #t~nondet1; {1866#true} is VALID [2020-07-11 02:29:20,263 INFO L280 TraceCheckUtils]: 14: Hoare triple {1866#true} havoc #t~nondet1; {1866#true} is VALID [2020-07-11 02:29:20,264 INFO L280 TraceCheckUtils]: 15: Hoare triple {1866#true} ~limit~0 := ~bufsize~0 - 4; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-11 02:29:20,265 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 [2020-07-11 02:29:20,265 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 [2020-07-11 02:29:20,266 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 [2020-07-11 02:29:20,267 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 [2020-07-11 02:29:20,268 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 [2020-07-11 02:29:20,268 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 [2020-07-11 02:29:20,269 INFO L280 TraceCheckUtils]: 22: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-11 02:29:20,269 INFO L280 TraceCheckUtils]: 23: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-11 02:29:20,269 INFO L280 TraceCheckUtils]: 24: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-11 02:29:20,270 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 [2020-07-11 02:29:20,271 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 [2020-07-11 02:29:20,271 INFO L280 TraceCheckUtils]: 27: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-11 02:29:20,271 INFO L280 TraceCheckUtils]: 28: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-11 02:29:20,272 INFO L280 TraceCheckUtils]: 29: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-11 02:29:20,273 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 [2020-07-11 02:29:20,274 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 [2020-07-11 02:29:20,275 INFO L280 TraceCheckUtils]: 32: Hoare triple {1880#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1881#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:20,275 INFO L280 TraceCheckUtils]: 33: Hoare triple {1881#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1867#false} is VALID [2020-07-11 02:29:20,276 INFO L280 TraceCheckUtils]: 34: Hoare triple {1867#false} assume !false; {1867#false} is VALID [2020-07-11 02:29:20,278 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-11 02:29:20,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745790292] [2020-07-11 02:29:20,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:20,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-11 02:29:20,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182055634] [2020-07-11 02:29:20,279 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-11 02:29:20,280 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:20,280 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-11 02:29:20,313 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:20,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-11 02:29:20,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:20,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-11 02:29:20,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-11 02:29:20,314 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand 6 states. [2020-07-11 02:29:20,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:20,984 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2020-07-11 02:29:20,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-11 02:29:20,984 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-11 02:29:20,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 02:29:20,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-11 02:29:20,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-11 02:29:20,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-11 02:29:20,991 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 91 transitions. [2020-07-11 02:29:21,084 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:21,087 INFO L225 Difference]: With dead ends: 106 [2020-07-11 02:29:21,088 INFO L226 Difference]: Without dead ends: 104 [2020-07-11 02:29:21,091 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 [2020-07-11 02:29:21,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-07-11 02:29:21,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-07-11 02:29:21,267 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:21,267 INFO L82 GeneralOperation]: Start isEquivalent. First operand 104 states. Second operand 104 states. [2020-07-11 02:29:21,267 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-11 02:29:21,267 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-11 02:29:21,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:21,275 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-11 02:29:21,275 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-11 02:29:21,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:21,277 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:21,277 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-11 02:29:21,277 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-11 02:29:21,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:21,285 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-11 02:29:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-11 02:29:21,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:21,286 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:21,286 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:21,286 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-11 02:29:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-07-11 02:29:21,293 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 35 [2020-07-11 02:29:21,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:21,294 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-07-11 02:29:21,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-11 02:29:21,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 128 transitions. [2020-07-11 02:29:21,468 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:21,469 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-11 02:29:21,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-11 02:29:21,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:21,472 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] [2020-07-11 02:29:21,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-11 02:29:21,472 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:21,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:21,472 INFO L82 PathProgramCache]: Analyzing trace with hash 364478305, now seen corresponding path program 1 times [2020-07-11 02:29:21,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:21,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481163183] [2020-07-11 02:29:21,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:21,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:21,580 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,581 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-11 02:29:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:21,587 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-11 02:29:21,588 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-11 02:29:21,588 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,589 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:21,598 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-11 02:29:21,598 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-11 02:29:21,598 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,599 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:21,606 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-11 02:29:21,606 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-11 02:29:21,606 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,607 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,608 INFO L263 TraceCheckUtils]: 0: Hoare triple {2516#true} call ULTIMATE.init(); {2516#true} is VALID [2020-07-11 02:29:21,608 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,608 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-11 02:29:21,609 INFO L263 TraceCheckUtils]: 3: Hoare triple {2516#true} call #t~ret10 := main(); {2516#true} is VALID [2020-07-11 02:29:21,609 INFO L280 TraceCheckUtils]: 4: Hoare triple {2516#true} havoc ~len~0; {2516#true} is VALID [2020-07-11 02:29:21,609 INFO L280 TraceCheckUtils]: 5: Hoare triple {2516#true} havoc ~i~0; {2516#true} is VALID [2020-07-11 02:29:21,609 INFO L280 TraceCheckUtils]: 6: Hoare triple {2516#true} havoc ~j~0; {2516#true} is VALID [2020-07-11 02:29:21,610 INFO L280 TraceCheckUtils]: 7: Hoare triple {2516#true} havoc ~bufsize~0; {2516#true} is VALID [2020-07-11 02:29:21,610 INFO L280 TraceCheckUtils]: 8: Hoare triple {2516#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2516#true} is VALID [2020-07-11 02:29:21,610 INFO L280 TraceCheckUtils]: 9: Hoare triple {2516#true} ~bufsize~0 := #t~nondet0; {2516#true} is VALID [2020-07-11 02:29:21,610 INFO L280 TraceCheckUtils]: 10: Hoare triple {2516#true} havoc #t~nondet0; {2516#true} is VALID [2020-07-11 02:29:21,611 INFO L280 TraceCheckUtils]: 11: Hoare triple {2516#true} assume !(~bufsize~0 < 0); {2516#true} is VALID [2020-07-11 02:29:21,611 INFO L280 TraceCheckUtils]: 12: Hoare triple {2516#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2516#true} is VALID [2020-07-11 02:29:21,611 INFO L280 TraceCheckUtils]: 13: Hoare triple {2516#true} ~len~0 := #t~nondet1; {2516#true} is VALID [2020-07-11 02:29:21,611 INFO L280 TraceCheckUtils]: 14: Hoare triple {2516#true} havoc #t~nondet1; {2516#true} is VALID [2020-07-11 02:29:21,611 INFO L280 TraceCheckUtils]: 15: Hoare triple {2516#true} ~limit~0 := ~bufsize~0 - 4; {2516#true} is VALID [2020-07-11 02:29:21,612 INFO L280 TraceCheckUtils]: 16: Hoare triple {2516#true} ~i~0 := 0; {2516#true} is VALID [2020-07-11 02:29:21,612 INFO L280 TraceCheckUtils]: 17: Hoare triple {2516#true} assume !!(~i~0 < ~len~0); {2516#true} is VALID [2020-07-11 02:29:21,613 INFO L280 TraceCheckUtils]: 18: Hoare triple {2516#true} ~j~0 := 0; {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,614 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 [2020-07-11 02:29:21,615 INFO L280 TraceCheckUtils]: 20: Hoare triple {2520#(<= 0 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,616 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 [2020-07-11 02:29:21,616 INFO L280 TraceCheckUtils]: 22: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-11 02:29:21,616 INFO L280 TraceCheckUtils]: 23: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-11 02:29:21,616 INFO L280 TraceCheckUtils]: 24: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,617 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,617 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 [2020-07-11 02:29:21,618 INFO L280 TraceCheckUtils]: 27: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-11 02:29:21,618 INFO L280 TraceCheckUtils]: 28: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-11 02:29:21,618 INFO L280 TraceCheckUtils]: 29: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,619 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,619 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 [2020-07-11 02:29:21,620 INFO L280 TraceCheckUtils]: 32: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-11 02:29:21,620 INFO L280 TraceCheckUtils]: 33: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-11 02:29:21,620 INFO L280 TraceCheckUtils]: 34: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-11 02:29:21,621 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:21,623 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 [2020-07-11 02:29:21,624 INFO L280 TraceCheckUtils]: 37: Hoare triple {2533#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {2534#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:21,625 INFO L280 TraceCheckUtils]: 38: Hoare triple {2534#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {2517#false} is VALID [2020-07-11 02:29:21,625 INFO L280 TraceCheckUtils]: 39: Hoare triple {2517#false} assume !false; {2517#false} is VALID [2020-07-11 02:29:21,627 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-11 02:29:21,627 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481163183] [2020-07-11 02:29:21,627 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:21,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-11 02:29:21,628 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782136337] [2020-07-11 02:29:21,628 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-11 02:29:21,629 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:21,629 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-11 02:29:21,673 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:21,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-11 02:29:21,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:21,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-11 02:29:21,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-11 02:29:21,674 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 5 states. [2020-07-11 02:29:22,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:22,320 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-07-11 02:29:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-11 02:29:22,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-11 02:29:22,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:22,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:22,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-11 02:29:22,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:22,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-11 02:29:22,335 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 126 transitions. [2020-07-11 02:29:22,484 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:22,489 INFO L225 Difference]: With dead ends: 135 [2020-07-11 02:29:22,490 INFO L226 Difference]: Without dead ends: 133 [2020-07-11 02:29:22,490 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 [2020-07-11 02:29:22,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-11 02:29:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-07-11 02:29:22,716 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:22,716 INFO L82 GeneralOperation]: Start isEquivalent. First operand 133 states. Second operand 125 states. [2020-07-11 02:29:22,716 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 125 states. [2020-07-11 02:29:22,716 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 125 states. [2020-07-11 02:29:22,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:22,724 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-11 02:29:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-11 02:29:22,725 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:22,725 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:22,726 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 133 states. [2020-07-11 02:29:22,726 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 133 states. [2020-07-11 02:29:22,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:22,733 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-11 02:29:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-11 02:29:22,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:22,735 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:22,735 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:22,735 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:22,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-11 02:29:22,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2020-07-11 02:29:22,742 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 40 [2020-07-11 02:29:22,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:22,742 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2020-07-11 02:29:22,743 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-11 02:29:22,743 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 125 states and 162 transitions. [2020-07-11 02:29:22,984 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:22,985 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-07-11 02:29:22,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-11 02:29:22,986 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:22,987 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] [2020-07-11 02:29:22,987 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-11 02:29:22,987 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:22,987 INFO L82 PathProgramCache]: Analyzing trace with hash 914533499, now seen corresponding path program 1 times [2020-07-11 02:29:22,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:22,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [91020226] [2020-07-11 02:29:22,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:23,072 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,073 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-11 02:29:23,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:23,079 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,079 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,080 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,081 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 [2020-07-11 02:29:23,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:23,093 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,093 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,093 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,094 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 [2020-07-11 02:29:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:23,105 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,106 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,106 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,107 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 [2020-07-11 02:29:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:23,117 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,118 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,118 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,119 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 [2020-07-11 02:29:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:23,123 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,123 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,123 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,124 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-11 02:29:23,124 INFO L263 TraceCheckUtils]: 0: Hoare triple {3325#true} call ULTIMATE.init(); {3325#true} is VALID [2020-07-11 02:29:23,124 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,124 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-11 02:29:23,125 INFO L263 TraceCheckUtils]: 3: Hoare triple {3325#true} call #t~ret10 := main(); {3325#true} is VALID [2020-07-11 02:29:23,125 INFO L280 TraceCheckUtils]: 4: Hoare triple {3325#true} havoc ~len~0; {3325#true} is VALID [2020-07-11 02:29:23,125 INFO L280 TraceCheckUtils]: 5: Hoare triple {3325#true} havoc ~i~0; {3325#true} is VALID [2020-07-11 02:29:23,125 INFO L280 TraceCheckUtils]: 6: Hoare triple {3325#true} havoc ~j~0; {3325#true} is VALID [2020-07-11 02:29:23,126 INFO L280 TraceCheckUtils]: 7: Hoare triple {3325#true} havoc ~bufsize~0; {3325#true} is VALID [2020-07-11 02:29:23,126 INFO L280 TraceCheckUtils]: 8: Hoare triple {3325#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3325#true} is VALID [2020-07-11 02:29:23,126 INFO L280 TraceCheckUtils]: 9: Hoare triple {3325#true} ~bufsize~0 := #t~nondet0; {3325#true} is VALID [2020-07-11 02:29:23,126 INFO L280 TraceCheckUtils]: 10: Hoare triple {3325#true} havoc #t~nondet0; {3325#true} is VALID [2020-07-11 02:29:23,127 INFO L280 TraceCheckUtils]: 11: Hoare triple {3325#true} assume !(~bufsize~0 < 0); {3325#true} is VALID [2020-07-11 02:29:23,127 INFO L280 TraceCheckUtils]: 12: Hoare triple {3325#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {3325#true} is VALID [2020-07-11 02:29:23,127 INFO L280 TraceCheckUtils]: 13: Hoare triple {3325#true} ~len~0 := #t~nondet1; {3325#true} is VALID [2020-07-11 02:29:23,127 INFO L280 TraceCheckUtils]: 14: Hoare triple {3325#true} havoc #t~nondet1; {3325#true} is VALID [2020-07-11 02:29:23,128 INFO L280 TraceCheckUtils]: 15: Hoare triple {3325#true} ~limit~0 := ~bufsize~0 - 4; {3325#true} is VALID [2020-07-11 02:29:23,128 INFO L280 TraceCheckUtils]: 16: Hoare triple {3325#true} ~i~0 := 0; {3325#true} is VALID [2020-07-11 02:29:23,128 INFO L280 TraceCheckUtils]: 17: Hoare triple {3325#true} assume !!(~i~0 < ~len~0); {3325#true} is VALID [2020-07-11 02:29:23,132 INFO L280 TraceCheckUtils]: 18: Hoare triple {3325#true} ~j~0 := 0; {3325#true} is VALID [2020-07-11 02:29:23,132 INFO L280 TraceCheckUtils]: 19: Hoare triple {3325#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {3325#true} is VALID [2020-07-11 02:29:23,133 INFO L280 TraceCheckUtils]: 20: Hoare triple {3325#true} assume !(1 + ~i~0 < ~len~0); {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-11 02:29:23,133 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 [2020-07-11 02:29:23,133 INFO L280 TraceCheckUtils]: 22: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,133 INFO L280 TraceCheckUtils]: 23: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,133 INFO L280 TraceCheckUtils]: 24: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,134 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 [2020-07-11 02:29:23,134 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 [2020-07-11 02:29:23,134 INFO L280 TraceCheckUtils]: 27: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,134 INFO L280 TraceCheckUtils]: 28: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,135 INFO L280 TraceCheckUtils]: 29: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,135 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 [2020-07-11 02:29:23,135 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 [2020-07-11 02:29:23,135 INFO L280 TraceCheckUtils]: 32: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,136 INFO L280 TraceCheckUtils]: 33: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,136 INFO L280 TraceCheckUtils]: 34: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,137 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 [2020-07-11 02:29:23,137 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 [2020-07-11 02:29:23,137 INFO L280 TraceCheckUtils]: 37: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,138 INFO L280 TraceCheckUtils]: 38: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,138 INFO L280 TraceCheckUtils]: 39: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,139 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 [2020-07-11 02:29:23,140 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 [2020-07-11 02:29:23,140 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 [2020-07-11 02:29:23,142 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 [2020-07-11 02:29:23,145 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 [2020-07-11 02:29:23,146 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 [2020-07-11 02:29:23,148 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 [2020-07-11 02:29:23,149 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 [2020-07-11 02:29:23,150 INFO L280 TraceCheckUtils]: 48: Hoare triple {3347#(<= main_~len~0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {3326#false} is VALID [2020-07-11 02:29:23,151 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 [2020-07-11 02:29:23,151 INFO L280 TraceCheckUtils]: 50: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-11 02:29:23,151 INFO L280 TraceCheckUtils]: 51: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-11 02:29:23,151 INFO L280 TraceCheckUtils]: 52: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-11 02:29:23,151 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-11 02:29:23,152 INFO L263 TraceCheckUtils]: 54: Hoare triple {3326#false} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {3326#false} is VALID [2020-07-11 02:29:23,152 INFO L280 TraceCheckUtils]: 55: Hoare triple {3326#false} ~cond := #in~cond; {3326#false} is VALID [2020-07-11 02:29:23,152 INFO L280 TraceCheckUtils]: 56: Hoare triple {3326#false} assume 0 == ~cond; {3326#false} is VALID [2020-07-11 02:29:23,152 INFO L280 TraceCheckUtils]: 57: Hoare triple {3326#false} assume !false; {3326#false} is VALID [2020-07-11 02:29:23,155 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-07-11 02:29:23,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [91020226] [2020-07-11 02:29:23,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:23,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-11 02:29:23,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569527762] [2020-07-11 02:29:23,157 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-11 02:29:23,157 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:23,157 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-11 02:29:23,205 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:23,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-11 02:29:23,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:23,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-11 02:29:23,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-11 02:29:23,207 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand 5 states. [2020-07-11 02:29:23,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:23,729 INFO L93 Difference]: Finished difference Result 229 states and 302 transitions. [2020-07-11 02:29:23,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-11 02:29:23,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-11 02:29:23,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:23,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-11 02:29:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-11 02:29:23,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-11 02:29:23,742 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 172 transitions. [2020-07-11 02:29:23,935 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 172 edges. 172 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:23,942 INFO L225 Difference]: With dead ends: 229 [2020-07-11 02:29:23,942 INFO L226 Difference]: Without dead ends: 128 [2020-07-11 02:29:23,944 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 [2020-07-11 02:29:23,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-11 02:29:24,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-11 02:29:24,178 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:24,178 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 128 states. [2020-07-11 02:29:24,178 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-11 02:29:24,178 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-11 02:29:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:24,185 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-11 02:29:24,185 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-11 02:29:24,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:24,186 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:24,186 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-11 02:29:24,186 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-11 02:29:24,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:24,193 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-11 02:29:24,193 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-11 02:29:24,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:24,195 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:24,195 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:24,195 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:24,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-11 02:29:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 165 transitions. [2020-07-11 02:29:24,202 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 165 transitions. Word has length 58 [2020-07-11 02:29:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:24,202 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 165 transitions. [2020-07-11 02:29:24,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-11 02:29:24,202 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 128 states and 165 transitions. [2020-07-11 02:29:24,458 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:24,459 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-11 02:29:24,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-11 02:29:24,460 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:24,460 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] [2020-07-11 02:29:24,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-11 02:29:24,461 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:24,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:24,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1807369608, now seen corresponding path program 1 times [2020-07-11 02:29:24,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:24,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [602770552] [2020-07-11 02:29:24,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,586 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,587 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-11 02:29:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,597 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,598 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,598 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,599 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #123#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,604 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,605 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,606 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #125#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,611 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,612 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,612 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,613 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #127#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,619 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,619 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,619 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,620 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #129#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,626 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,626 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,626 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,627 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #131#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:24,633 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,633 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,633 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,634 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #133#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,634 INFO L263 TraceCheckUtils]: 0: Hoare triple {4328#true} call ULTIMATE.init(); {4328#true} is VALID [2020-07-11 02:29:24,635 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,635 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-11 02:29:24,635 INFO L263 TraceCheckUtils]: 3: Hoare triple {4328#true} call #t~ret10 := main(); {4328#true} is VALID [2020-07-11 02:29:24,635 INFO L280 TraceCheckUtils]: 4: Hoare triple {4328#true} havoc ~len~0; {4328#true} is VALID [2020-07-11 02:29:24,635 INFO L280 TraceCheckUtils]: 5: Hoare triple {4328#true} havoc ~i~0; {4328#true} is VALID [2020-07-11 02:29:24,636 INFO L280 TraceCheckUtils]: 6: Hoare triple {4328#true} havoc ~j~0; {4328#true} is VALID [2020-07-11 02:29:24,636 INFO L280 TraceCheckUtils]: 7: Hoare triple {4328#true} havoc ~bufsize~0; {4328#true} is VALID [2020-07-11 02:29:24,636 INFO L280 TraceCheckUtils]: 8: Hoare triple {4328#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4328#true} is VALID [2020-07-11 02:29:24,636 INFO L280 TraceCheckUtils]: 9: Hoare triple {4328#true} ~bufsize~0 := #t~nondet0; {4328#true} is VALID [2020-07-11 02:29:24,637 INFO L280 TraceCheckUtils]: 10: Hoare triple {4328#true} havoc #t~nondet0; {4328#true} is VALID [2020-07-11 02:29:24,637 INFO L280 TraceCheckUtils]: 11: Hoare triple {4328#true} assume !(~bufsize~0 < 0); {4328#true} is VALID [2020-07-11 02:29:24,637 INFO L280 TraceCheckUtils]: 12: Hoare triple {4328#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4328#true} is VALID [2020-07-11 02:29:24,637 INFO L280 TraceCheckUtils]: 13: Hoare triple {4328#true} ~len~0 := #t~nondet1; {4328#true} is VALID [2020-07-11 02:29:24,637 INFO L280 TraceCheckUtils]: 14: Hoare triple {4328#true} havoc #t~nondet1; {4328#true} is VALID [2020-07-11 02:29:24,638 INFO L280 TraceCheckUtils]: 15: Hoare triple {4328#true} ~limit~0 := ~bufsize~0 - 4; {4328#true} is VALID [2020-07-11 02:29:24,638 INFO L280 TraceCheckUtils]: 16: Hoare triple {4328#true} ~i~0 := 0; {4328#true} is VALID [2020-07-11 02:29:24,638 INFO L280 TraceCheckUtils]: 17: Hoare triple {4328#true} assume !!(~i~0 < ~len~0); {4328#true} is VALID [2020-07-11 02:29:24,638 INFO L280 TraceCheckUtils]: 18: Hoare triple {4328#true} ~j~0 := 0; {4328#true} is VALID [2020-07-11 02:29:24,638 INFO L280 TraceCheckUtils]: 19: Hoare triple {4328#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {4328#true} is VALID [2020-07-11 02:29:24,639 INFO L280 TraceCheckUtils]: 20: Hoare triple {4328#true} assume 1 + ~i~0 < ~len~0; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,640 INFO L263 TraceCheckUtils]: 21: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-11 02:29:24,640 INFO L280 TraceCheckUtils]: 22: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,640 INFO L280 TraceCheckUtils]: 23: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,640 INFO L280 TraceCheckUtils]: 24: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,641 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #123#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,641 INFO L263 TraceCheckUtils]: 26: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-11 02:29:24,642 INFO L280 TraceCheckUtils]: 27: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,642 INFO L280 TraceCheckUtils]: 28: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,642 INFO L280 TraceCheckUtils]: 29: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,643 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #125#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,643 INFO L280 TraceCheckUtils]: 31: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,644 INFO L280 TraceCheckUtils]: 32: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} assume !(0 != #t~nondet2); {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,645 INFO L280 TraceCheckUtils]: 33: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} havoc #t~nondet2; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,645 INFO L263 TraceCheckUtils]: 34: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-11 02:29:24,645 INFO L280 TraceCheckUtils]: 35: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,645 INFO L280 TraceCheckUtils]: 36: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,645 INFO L280 TraceCheckUtils]: 37: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,646 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #127#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,647 INFO L263 TraceCheckUtils]: 39: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-11 02:29:24,647 INFO L280 TraceCheckUtils]: 40: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,647 INFO L280 TraceCheckUtils]: 41: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,647 INFO L280 TraceCheckUtils]: 42: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,648 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #129#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,648 INFO L263 TraceCheckUtils]: 44: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {4328#true} is VALID [2020-07-11 02:29:24,648 INFO L280 TraceCheckUtils]: 45: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,649 INFO L280 TraceCheckUtils]: 46: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,649 INFO L280 TraceCheckUtils]: 47: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,650 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #131#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,650 INFO L263 TraceCheckUtils]: 49: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {4328#true} is VALID [2020-07-11 02:29:24,650 INFO L280 TraceCheckUtils]: 50: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-11 02:29:24,650 INFO L280 TraceCheckUtils]: 51: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-11 02:29:24,651 INFO L280 TraceCheckUtils]: 52: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-11 02:29:24,651 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {4328#true} {4332#(<= (+ main_~i~0 2) main_~len~0)} #133#return; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,652 INFO L280 TraceCheckUtils]: 54: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} #t~post3 := ~j~0; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,653 INFO L280 TraceCheckUtils]: 55: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} ~j~0 := 1 + #t~post3; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,653 INFO L280 TraceCheckUtils]: 56: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} havoc #t~post3; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-11 02:29:24,654 INFO L280 TraceCheckUtils]: 57: Hoare triple {4332#(<= (+ main_~i~0 2) main_~len~0)} #t~post4 := ~i~0; {4357#(<= (+ |main_#t~post4| 2) main_~len~0)} is VALID [2020-07-11 02:29:24,655 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 [2020-07-11 02:29:24,656 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 [2020-07-11 02:29:24,657 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 [2020-07-11 02:29:24,658 INFO L280 TraceCheckUtils]: 61: Hoare triple {4359#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {4360#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:24,658 INFO L280 TraceCheckUtils]: 62: Hoare triple {4360#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {4329#false} is VALID [2020-07-11 02:29:24,659 INFO L280 TraceCheckUtils]: 63: Hoare triple {4329#false} assume !false; {4329#false} is VALID [2020-07-11 02:29:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-07-11 02:29:24,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [602770552] [2020-07-11 02:29:24,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:24,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-11 02:29:24,664 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715690728] [2020-07-11 02:29:24,664 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-11 02:29:24,665 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:24,665 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-11 02:29:24,718 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:24,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-11 02:29:24,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:24,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-11 02:29:24,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-11 02:29:24,719 INFO L87 Difference]: Start difference. First operand 128 states and 165 transitions. Second operand 7 states. [2020-07-11 02:29:25,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:25,548 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2020-07-11 02:29:25,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-11 02:29:25,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-11 02:29:25,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:25,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-11 02:29:25,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:25,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-11 02:29:25,555 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 101 transitions. [2020-07-11 02:29:25,679 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:25,685 INFO L225 Difference]: With dead ends: 136 [2020-07-11 02:29:25,685 INFO L226 Difference]: Without dead ends: 134 [2020-07-11 02:29:25,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-11 02:29:25,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-11 02:29:25,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-07-11 02:29:25,951 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:25,951 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 132 states. [2020-07-11 02:29:25,951 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 132 states. [2020-07-11 02:29:25,951 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 132 states. [2020-07-11 02:29:25,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:25,958 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-11 02:29:25,958 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-11 02:29:25,959 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:25,959 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:25,959 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 134 states. [2020-07-11 02:29:25,959 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 134 states. [2020-07-11 02:29:25,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:25,966 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-11 02:29:25,966 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-11 02:29:25,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:25,967 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:25,967 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:25,967 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:25,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-11 02:29:25,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2020-07-11 02:29:25,974 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 64 [2020-07-11 02:29:25,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:25,974 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2020-07-11 02:29:25,974 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-11 02:29:25,974 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 132 states and 168 transitions. [2020-07-11 02:29:26,212 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:26,213 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2020-07-11 02:29:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-11 02:29:26,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:26,214 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] [2020-07-11 02:29:26,214 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-11 02:29:26,214 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:26,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1715909932, now seen corresponding path program 1 times [2020-07-11 02:29:26,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:26,215 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [668003873] [2020-07-11 02:29:26,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:26,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,331 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,331 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-11 02:29:26,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,341 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,341 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,341 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,342 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,349 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,350 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,350 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,351 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,359 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,360 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,360 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,360 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,365 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,365 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,366 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,368 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,376 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,376 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,377 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,377 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,386 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,386 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,386 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,389 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:26,400 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,400 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,400 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,402 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:26,402 INFO L263 TraceCheckUtils]: 0: Hoare triple {5173#true} call ULTIMATE.init(); {5173#true} is VALID [2020-07-11 02:29:26,402 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,402 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-11 02:29:26,402 INFO L263 TraceCheckUtils]: 3: Hoare triple {5173#true} call #t~ret10 := main(); {5173#true} is VALID [2020-07-11 02:29:26,403 INFO L280 TraceCheckUtils]: 4: Hoare triple {5173#true} havoc ~len~0; {5173#true} is VALID [2020-07-11 02:29:26,403 INFO L280 TraceCheckUtils]: 5: Hoare triple {5173#true} havoc ~i~0; {5173#true} is VALID [2020-07-11 02:29:26,403 INFO L280 TraceCheckUtils]: 6: Hoare triple {5173#true} havoc ~j~0; {5173#true} is VALID [2020-07-11 02:29:26,403 INFO L280 TraceCheckUtils]: 7: Hoare triple {5173#true} havoc ~bufsize~0; {5173#true} is VALID [2020-07-11 02:29:26,403 INFO L280 TraceCheckUtils]: 8: Hoare triple {5173#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {5173#true} is VALID [2020-07-11 02:29:26,404 INFO L280 TraceCheckUtils]: 9: Hoare triple {5173#true} ~bufsize~0 := #t~nondet0; {5173#true} is VALID [2020-07-11 02:29:26,404 INFO L280 TraceCheckUtils]: 10: Hoare triple {5173#true} havoc #t~nondet0; {5173#true} is VALID [2020-07-11 02:29:26,404 INFO L280 TraceCheckUtils]: 11: Hoare triple {5173#true} assume !(~bufsize~0 < 0); {5173#true} is VALID [2020-07-11 02:29:26,404 INFO L280 TraceCheckUtils]: 12: Hoare triple {5173#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {5173#true} is VALID [2020-07-11 02:29:26,404 INFO L280 TraceCheckUtils]: 13: Hoare triple {5173#true} ~len~0 := #t~nondet1; {5173#true} is VALID [2020-07-11 02:29:26,404 INFO L280 TraceCheckUtils]: 14: Hoare triple {5173#true} havoc #t~nondet1; {5173#true} is VALID [2020-07-11 02:29:26,405 INFO L280 TraceCheckUtils]: 15: Hoare triple {5173#true} ~limit~0 := ~bufsize~0 - 4; {5173#true} is VALID [2020-07-11 02:29:26,405 INFO L280 TraceCheckUtils]: 16: Hoare triple {5173#true} ~i~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,406 INFO L280 TraceCheckUtils]: 17: Hoare triple {5177#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,406 INFO L280 TraceCheckUtils]: 18: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,407 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 [2020-07-11 02:29:26,407 INFO L280 TraceCheckUtils]: 20: Hoare triple {5177#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,407 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 [2020-07-11 02:29:26,408 INFO L280 TraceCheckUtils]: 22: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,408 INFO L280 TraceCheckUtils]: 23: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,408 INFO L280 TraceCheckUtils]: 24: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,415 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,416 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 [2020-07-11 02:29:26,416 INFO L280 TraceCheckUtils]: 27: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,416 INFO L280 TraceCheckUtils]: 28: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,416 INFO L280 TraceCheckUtils]: 29: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,417 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,417 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 [2020-07-11 02:29:26,418 INFO L280 TraceCheckUtils]: 32: Hoare triple {5177#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,418 INFO L280 TraceCheckUtils]: 33: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~nondet2; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,419 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 [2020-07-11 02:29:26,419 INFO L280 TraceCheckUtils]: 35: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,419 INFO L280 TraceCheckUtils]: 36: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,419 INFO L280 TraceCheckUtils]: 37: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,420 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,420 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 [2020-07-11 02:29:26,420 INFO L280 TraceCheckUtils]: 40: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,420 INFO L280 TraceCheckUtils]: 41: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,420 INFO L280 TraceCheckUtils]: 42: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,421 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,421 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 [2020-07-11 02:29:26,421 INFO L280 TraceCheckUtils]: 45: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,421 INFO L280 TraceCheckUtils]: 46: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,421 INFO L280 TraceCheckUtils]: 47: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,422 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,422 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 [2020-07-11 02:29:26,422 INFO L280 TraceCheckUtils]: 50: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,422 INFO L280 TraceCheckUtils]: 51: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,423 INFO L280 TraceCheckUtils]: 52: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,425 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,427 INFO L280 TraceCheckUtils]: 54: Hoare triple {5177#(<= 0 main_~i~0)} #t~post3 := ~j~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,428 INFO L280 TraceCheckUtils]: 55: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,428 INFO L280 TraceCheckUtils]: 56: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:26,429 INFO L280 TraceCheckUtils]: 57: Hoare triple {5177#(<= 0 main_~i~0)} #t~post4 := ~i~0; {5202#(<= 0 |main_#t~post4|)} is VALID [2020-07-11 02:29:26,430 INFO L280 TraceCheckUtils]: 58: Hoare triple {5202#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:26,430 INFO L280 TraceCheckUtils]: 59: Hoare triple {5203#(<= 1 main_~i~0)} havoc #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:26,431 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 [2020-07-11 02:29:26,431 INFO L280 TraceCheckUtils]: 61: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-11 02:29:26,431 INFO L280 TraceCheckUtils]: 62: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-11 02:29:26,431 INFO L280 TraceCheckUtils]: 63: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-11 02:29:26,432 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:26,433 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 [2020-07-11 02:29:26,433 INFO L280 TraceCheckUtils]: 66: Hoare triple {5208#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {5209#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:26,434 INFO L280 TraceCheckUtils]: 67: Hoare triple {5209#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {5174#false} is VALID [2020-07-11 02:29:26,434 INFO L280 TraceCheckUtils]: 68: Hoare triple {5174#false} assume !false; {5174#false} is VALID [2020-07-11 02:29:26,438 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-11 02:29:26,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [668003873] [2020-07-11 02:29:26,438 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:26,439 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-11 02:29:26,439 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141901529] [2020-07-11 02:29:26,439 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-11 02:29:26,440 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:26,440 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-11 02:29:26,492 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:26,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-11 02:29:26,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:26,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-11 02:29:26,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-11 02:29:26,493 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand 7 states. [2020-07-11 02:29:27,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:27,447 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2020-07-11 02:29:27,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-11 02:29:27,447 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-11 02:29:27,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:27,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-11 02:29:27,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:27,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-11 02:29:27,456 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 145 transitions. [2020-07-11 02:29:27,645 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:27,650 INFO L225 Difference]: With dead ends: 162 [2020-07-11 02:29:27,650 INFO L226 Difference]: Without dead ends: 160 [2020-07-11 02:29:27,651 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 [2020-07-11 02:29:27,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-11 02:29:27,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2020-07-11 02:29:27,925 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:27,925 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 146 states. [2020-07-11 02:29:27,925 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 146 states. [2020-07-11 02:29:27,925 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 146 states. [2020-07-11 02:29:27,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:27,944 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-11 02:29:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-11 02:29:27,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:27,945 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:27,945 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 160 states. [2020-07-11 02:29:27,945 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 160 states. [2020-07-11 02:29:27,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:27,959 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-11 02:29:27,959 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-11 02:29:27,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:27,960 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:27,961 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:27,961 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-11 02:29:27,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2020-07-11 02:29:27,967 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 69 [2020-07-11 02:29:27,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:27,968 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2020-07-11 02:29:27,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-11 02:29:27,968 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 146 states and 185 transitions. [2020-07-11 02:29:28,254 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:28,254 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2020-07-11 02:29:28,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-11 02:29:28,255 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:28,255 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] [2020-07-11 02:29:28,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-11 02:29:28,256 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:28,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:28,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1298936315, now seen corresponding path program 1 times [2020-07-11 02:29:28,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:28,256 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253041432] [2020-07-11 02:29:28,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,337 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,337 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-11 02:29:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,343 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,343 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,344 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,344 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,347 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,348 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,348 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,348 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,353 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,353 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,353 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,354 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,358 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,359 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,359 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,359 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,364 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,364 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,364 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,365 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,370 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,370 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,370 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,371 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:28,374 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,374 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,374 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,375 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:28,375 INFO L263 TraceCheckUtils]: 0: Hoare triple {6154#true} call ULTIMATE.init(); {6154#true} is VALID [2020-07-11 02:29:28,375 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,376 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-11 02:29:28,376 INFO L263 TraceCheckUtils]: 3: Hoare triple {6154#true} call #t~ret10 := main(); {6154#true} is VALID [2020-07-11 02:29:28,376 INFO L280 TraceCheckUtils]: 4: Hoare triple {6154#true} havoc ~len~0; {6154#true} is VALID [2020-07-11 02:29:28,376 INFO L280 TraceCheckUtils]: 5: Hoare triple {6154#true} havoc ~i~0; {6154#true} is VALID [2020-07-11 02:29:28,376 INFO L280 TraceCheckUtils]: 6: Hoare triple {6154#true} havoc ~j~0; {6154#true} is VALID [2020-07-11 02:29:28,377 INFO L280 TraceCheckUtils]: 7: Hoare triple {6154#true} havoc ~bufsize~0; {6154#true} is VALID [2020-07-11 02:29:28,377 INFO L280 TraceCheckUtils]: 8: Hoare triple {6154#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6154#true} is VALID [2020-07-11 02:29:28,377 INFO L280 TraceCheckUtils]: 9: Hoare triple {6154#true} ~bufsize~0 := #t~nondet0; {6154#true} is VALID [2020-07-11 02:29:28,377 INFO L280 TraceCheckUtils]: 10: Hoare triple {6154#true} havoc #t~nondet0; {6154#true} is VALID [2020-07-11 02:29:28,377 INFO L280 TraceCheckUtils]: 11: Hoare triple {6154#true} assume !(~bufsize~0 < 0); {6154#true} is VALID [2020-07-11 02:29:28,377 INFO L280 TraceCheckUtils]: 12: Hoare triple {6154#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6154#true} is VALID [2020-07-11 02:29:28,378 INFO L280 TraceCheckUtils]: 13: Hoare triple {6154#true} ~len~0 := #t~nondet1; {6154#true} is VALID [2020-07-11 02:29:28,378 INFO L280 TraceCheckUtils]: 14: Hoare triple {6154#true} havoc #t~nondet1; {6154#true} is VALID [2020-07-11 02:29:28,378 INFO L280 TraceCheckUtils]: 15: Hoare triple {6154#true} ~limit~0 := ~bufsize~0 - 4; {6154#true} is VALID [2020-07-11 02:29:28,379 INFO L280 TraceCheckUtils]: 16: Hoare triple {6154#true} ~i~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,379 INFO L280 TraceCheckUtils]: 17: Hoare triple {6158#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,380 INFO L280 TraceCheckUtils]: 18: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,385 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 [2020-07-11 02:29:28,386 INFO L280 TraceCheckUtils]: 20: Hoare triple {6158#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,386 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 [2020-07-11 02:29:28,386 INFO L280 TraceCheckUtils]: 22: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,387 INFO L280 TraceCheckUtils]: 23: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,387 INFO L280 TraceCheckUtils]: 24: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,402 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,403 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 [2020-07-11 02:29:28,403 INFO L280 TraceCheckUtils]: 27: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,403 INFO L280 TraceCheckUtils]: 28: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,403 INFO L280 TraceCheckUtils]: 29: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,405 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,405 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 [2020-07-11 02:29:28,406 INFO L280 TraceCheckUtils]: 32: Hoare triple {6158#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,406 INFO L280 TraceCheckUtils]: 33: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,406 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 [2020-07-11 02:29:28,406 INFO L280 TraceCheckUtils]: 35: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,406 INFO L280 TraceCheckUtils]: 36: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,407 INFO L280 TraceCheckUtils]: 37: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,407 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,407 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 [2020-07-11 02:29:28,407 INFO L280 TraceCheckUtils]: 40: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,407 INFO L280 TraceCheckUtils]: 41: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,408 INFO L280 TraceCheckUtils]: 42: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,408 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,408 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 [2020-07-11 02:29:28,408 INFO L280 TraceCheckUtils]: 45: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,408 INFO L280 TraceCheckUtils]: 46: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,409 INFO L280 TraceCheckUtils]: 47: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,409 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,410 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 [2020-07-11 02:29:28,410 INFO L280 TraceCheckUtils]: 50: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,410 INFO L280 TraceCheckUtils]: 51: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,410 INFO L280 TraceCheckUtils]: 52: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,411 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,412 INFO L280 TraceCheckUtils]: 54: Hoare triple {6158#(<= 0 main_~i~0)} #t~post8 := ~j~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,412 INFO L280 TraceCheckUtils]: 55: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,412 INFO L280 TraceCheckUtils]: 56: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:28,413 INFO L280 TraceCheckUtils]: 57: Hoare triple {6158#(<= 0 main_~i~0)} #t~post9 := ~i~0; {6183#(<= 0 |main_#t~post9|)} is VALID [2020-07-11 02:29:28,413 INFO L280 TraceCheckUtils]: 58: Hoare triple {6183#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:28,414 INFO L280 TraceCheckUtils]: 59: Hoare triple {6184#(<= 1 main_~i~0)} havoc #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:28,414 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 [2020-07-11 02:29:28,415 INFO L280 TraceCheckUtils]: 61: Hoare triple {6184#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6184#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:28,415 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 [2020-07-11 02:29:28,415 INFO L280 TraceCheckUtils]: 63: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-11 02:29:28,415 INFO L280 TraceCheckUtils]: 64: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-11 02:29:28,415 INFO L280 TraceCheckUtils]: 65: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-11 02:29:28,416 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:28,416 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 [2020-07-11 02:29:28,417 INFO L280 TraceCheckUtils]: 68: Hoare triple {6189#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {6190#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:28,417 INFO L280 TraceCheckUtils]: 69: Hoare triple {6190#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {6155#false} is VALID [2020-07-11 02:29:28,417 INFO L280 TraceCheckUtils]: 70: Hoare triple {6155#false} assume !false; {6155#false} is VALID [2020-07-11 02:29:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-11 02:29:28,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253041432] [2020-07-11 02:29:28,420 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:28,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-11 02:29:28,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208334296] [2020-07-11 02:29:28,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-11 02:29:28,421 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:28,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-11 02:29:28,480 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:28,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-11 02:29:28,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:28,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-11 02:29:28,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-11 02:29:28,482 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand 7 states. [2020-07-11 02:29:29,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:29,717 INFO L93 Difference]: Finished difference Result 210 states and 280 transitions. [2020-07-11 02:29:29,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-11 02:29:29,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-11 02:29:29,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-11 02:29:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-11 02:29:29,744 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 173 transitions. [2020-07-11 02:29:29,932 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:29,940 INFO L225 Difference]: With dead ends: 210 [2020-07-11 02:29:29,941 INFO L226 Difference]: Without dead ends: 206 [2020-07-11 02:29:29,941 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 [2020-07-11 02:29:29,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-11 02:29:30,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2020-07-11 02:29:30,439 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:30,439 INFO L82 GeneralOperation]: Start isEquivalent. First operand 206 states. Second operand 188 states. [2020-07-11 02:29:30,439 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 188 states. [2020-07-11 02:29:30,440 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 188 states. [2020-07-11 02:29:30,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:30,461 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-11 02:29:30,461 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-11 02:29:30,463 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:30,463 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:30,463 INFO L74 IsIncluded]: Start isIncluded. First operand 188 states. Second operand 206 states. [2020-07-11 02:29:30,463 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 206 states. [2020-07-11 02:29:30,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:30,489 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-11 02:29:30,489 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-11 02:29:30,491 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:30,491 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:30,492 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:30,492 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:30,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-11 02:29:30,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2020-07-11 02:29:30,509 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 71 [2020-07-11 02:29:30,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:30,510 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2020-07-11 02:29:30,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-11 02:29:30,510 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 188 states and 249 transitions. [2020-07-11 02:29:30,889 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 249 edges. 249 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:30,889 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2020-07-11 02:29:30,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-11 02:29:30,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:30,891 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] [2020-07-11 02:29:30,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-11 02:29:30,892 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:30,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:30,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1528474552, now seen corresponding path program 1 times [2020-07-11 02:29:30,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:30,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1174118690] [2020-07-11 02:29:30,893 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,008 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,008 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-11 02:29:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,021 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,021 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,021 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,022 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 [2020-07-11 02:29:31,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,028 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,028 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,028 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,029 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 [2020-07-11 02:29:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,034 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,034 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,035 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,036 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 [2020-07-11 02:29:31,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,044 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,044 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,044 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,045 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 [2020-07-11 02:29:31,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,063 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,063 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,064 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 [2020-07-11 02:29:31,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,070 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,071 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,071 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,072 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 [2020-07-11 02:29:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,077 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,077 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,077 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,078 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 [2020-07-11 02:29:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:31,083 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,084 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,084 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,085 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 [2020-07-11 02:29:31,085 INFO L263 TraceCheckUtils]: 0: Hoare triple {7407#true} call ULTIMATE.init(); {7407#true} is VALID [2020-07-11 02:29:31,085 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,085 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-11 02:29:31,086 INFO L263 TraceCheckUtils]: 3: Hoare triple {7407#true} call #t~ret10 := main(); {7407#true} is VALID [2020-07-11 02:29:31,086 INFO L280 TraceCheckUtils]: 4: Hoare triple {7407#true} havoc ~len~0; {7407#true} is VALID [2020-07-11 02:29:31,086 INFO L280 TraceCheckUtils]: 5: Hoare triple {7407#true} havoc ~i~0; {7407#true} is VALID [2020-07-11 02:29:31,086 INFO L280 TraceCheckUtils]: 6: Hoare triple {7407#true} havoc ~j~0; {7407#true} is VALID [2020-07-11 02:29:31,086 INFO L280 TraceCheckUtils]: 7: Hoare triple {7407#true} havoc ~bufsize~0; {7407#true} is VALID [2020-07-11 02:29:31,087 INFO L280 TraceCheckUtils]: 8: Hoare triple {7407#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {7407#true} is VALID [2020-07-11 02:29:31,087 INFO L280 TraceCheckUtils]: 9: Hoare triple {7407#true} ~bufsize~0 := #t~nondet0; {7407#true} is VALID [2020-07-11 02:29:31,087 INFO L280 TraceCheckUtils]: 10: Hoare triple {7407#true} havoc #t~nondet0; {7407#true} is VALID [2020-07-11 02:29:31,087 INFO L280 TraceCheckUtils]: 11: Hoare triple {7407#true} assume !(~bufsize~0 < 0); {7407#true} is VALID [2020-07-11 02:29:31,087 INFO L280 TraceCheckUtils]: 12: Hoare triple {7407#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {7407#true} is VALID [2020-07-11 02:29:31,088 INFO L280 TraceCheckUtils]: 13: Hoare triple {7407#true} ~len~0 := #t~nondet1; {7407#true} is VALID [2020-07-11 02:29:31,088 INFO L280 TraceCheckUtils]: 14: Hoare triple {7407#true} havoc #t~nondet1; {7407#true} is VALID [2020-07-11 02:29:31,089 INFO L280 TraceCheckUtils]: 15: Hoare triple {7407#true} ~limit~0 := ~bufsize~0 - 4; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-11 02:29:31,089 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 [2020-07-11 02:29:31,090 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 [2020-07-11 02:29:31,090 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 [2020-07-11 02:29:31,091 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 [2020-07-11 02:29:31,092 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 [2020-07-11 02:29:31,092 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 [2020-07-11 02:29:31,092 INFO L280 TraceCheckUtils]: 22: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,093 INFO L280 TraceCheckUtils]: 23: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,093 INFO L280 TraceCheckUtils]: 24: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,094 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 [2020-07-11 02:29:31,094 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 [2020-07-11 02:29:31,094 INFO L280 TraceCheckUtils]: 27: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,094 INFO L280 TraceCheckUtils]: 28: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,095 INFO L280 TraceCheckUtils]: 29: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,096 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 [2020-07-11 02:29:31,096 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 [2020-07-11 02:29:31,097 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 [2020-07-11 02:29:31,097 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 [2020-07-11 02:29:31,097 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 [2020-07-11 02:29:31,098 INFO L280 TraceCheckUtils]: 35: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,098 INFO L280 TraceCheckUtils]: 36: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,098 INFO L280 TraceCheckUtils]: 37: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,099 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 [2020-07-11 02:29:31,099 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 [2020-07-11 02:29:31,099 INFO L280 TraceCheckUtils]: 40: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,099 INFO L280 TraceCheckUtils]: 41: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,099 INFO L280 TraceCheckUtils]: 42: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,100 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 [2020-07-11 02:29:31,100 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 [2020-07-11 02:29:31,100 INFO L280 TraceCheckUtils]: 45: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,101 INFO L280 TraceCheckUtils]: 46: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,101 INFO L280 TraceCheckUtils]: 47: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,101 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 [2020-07-11 02:29:31,102 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 [2020-07-11 02:29:31,102 INFO L280 TraceCheckUtils]: 50: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,102 INFO L280 TraceCheckUtils]: 51: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,102 INFO L280 TraceCheckUtils]: 52: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,103 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 [2020-07-11 02:29:31,103 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 [2020-07-11 02:29:31,104 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 [2020-07-11 02:29:31,105 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 [2020-07-11 02:29:31,105 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 [2020-07-11 02:29:31,106 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 [2020-07-11 02:29:31,106 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 [2020-07-11 02:29:31,107 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 [2020-07-11 02:29:31,107 INFO L280 TraceCheckUtils]: 61: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,107 INFO L280 TraceCheckUtils]: 62: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,107 INFO L280 TraceCheckUtils]: 63: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,108 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 [2020-07-11 02:29:31,108 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 [2020-07-11 02:29:31,108 INFO L280 TraceCheckUtils]: 66: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-11 02:29:31,108 INFO L280 TraceCheckUtils]: 67: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-11 02:29:31,109 INFO L280 TraceCheckUtils]: 68: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-11 02:29:31,109 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 [2020-07-11 02:29:31,111 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 [2020-07-11 02:29:31,111 INFO L280 TraceCheckUtils]: 71: Hoare triple {7447#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {7448#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:31,112 INFO L280 TraceCheckUtils]: 72: Hoare triple {7448#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {7408#false} is VALID [2020-07-11 02:29:31,112 INFO L280 TraceCheckUtils]: 73: Hoare triple {7408#false} assume !false; {7408#false} is VALID [2020-07-11 02:29:31,117 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-11 02:29:31,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1174118690] [2020-07-11 02:29:31,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:31,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-11 02:29:31,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715808041] [2020-07-11 02:29:31,118 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-11 02:29:31,118 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:31,119 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-11 02:29:31,174 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:31,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-11 02:29:31,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:31,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-11 02:29:31,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-11 02:29:31,175 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand 8 states. [2020-07-11 02:29:32,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:32,350 INFO L93 Difference]: Finished difference Result 194 states and 254 transitions. [2020-07-11 02:29:32,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-11 02:29:32,350 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-11 02:29:32,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 02:29:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-11 02:29:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-11 02:29:32,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-11 02:29:32,355 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 91 transitions. [2020-07-11 02:29:32,472 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:32,478 INFO L225 Difference]: With dead ends: 194 [2020-07-11 02:29:32,478 INFO L226 Difference]: Without dead ends: 192 [2020-07-11 02:29:32,479 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 [2020-07-11 02:29:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-11 02:29:32,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-11 02:29:32,906 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:32,906 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-11 02:29:32,906 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-11 02:29:32,907 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-11 02:29:32,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:32,914 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-11 02:29:32,914 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-11 02:29:32,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:32,915 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:32,916 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-11 02:29:32,916 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-11 02:29:32,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:32,925 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-11 02:29:32,925 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-11 02:29:32,926 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:32,926 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:32,927 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:32,927 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:32,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-11 02:29:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2020-07-11 02:29:32,936 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 74 [2020-07-11 02:29:32,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:32,936 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2020-07-11 02:29:32,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-11 02:29:32,937 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 192 states and 252 transitions. [2020-07-11 02:29:33,326 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 252 edges. 252 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-11 02:29:33,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-11 02:29:33,328 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:33,328 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] [2020-07-11 02:29:33,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-11 02:29:33,329 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:33,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:33,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1530703596, now seen corresponding path program 1 times [2020-07-11 02:29:33,329 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:33,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039483685] [2020-07-11 02:29:33,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:33,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,421 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,421 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-11 02:29:33,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,426 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,426 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,427 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,428 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,432 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,432 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,432 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,433 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,438 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,438 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,438 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,439 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,443 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,443 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,443 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,444 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,449 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,449 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,449 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,450 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,454 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,455 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,455 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,456 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,460 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,460 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,460 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,461 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,466 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,466 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,466 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,467 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:33,472 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,473 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,473 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,474 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,474 INFO L263 TraceCheckUtils]: 0: Hoare triple {8617#true} call ULTIMATE.init(); {8617#true} is VALID [2020-07-11 02:29:33,474 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,474 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-11 02:29:33,475 INFO L263 TraceCheckUtils]: 3: Hoare triple {8617#true} call #t~ret10 := main(); {8617#true} is VALID [2020-07-11 02:29:33,475 INFO L280 TraceCheckUtils]: 4: Hoare triple {8617#true} havoc ~len~0; {8617#true} is VALID [2020-07-11 02:29:33,475 INFO L280 TraceCheckUtils]: 5: Hoare triple {8617#true} havoc ~i~0; {8617#true} is VALID [2020-07-11 02:29:33,475 INFO L280 TraceCheckUtils]: 6: Hoare triple {8617#true} havoc ~j~0; {8617#true} is VALID [2020-07-11 02:29:33,476 INFO L280 TraceCheckUtils]: 7: Hoare triple {8617#true} havoc ~bufsize~0; {8617#true} is VALID [2020-07-11 02:29:33,476 INFO L280 TraceCheckUtils]: 8: Hoare triple {8617#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {8617#true} is VALID [2020-07-11 02:29:33,476 INFO L280 TraceCheckUtils]: 9: Hoare triple {8617#true} ~bufsize~0 := #t~nondet0; {8617#true} is VALID [2020-07-11 02:29:33,476 INFO L280 TraceCheckUtils]: 10: Hoare triple {8617#true} havoc #t~nondet0; {8617#true} is VALID [2020-07-11 02:29:33,476 INFO L280 TraceCheckUtils]: 11: Hoare triple {8617#true} assume !(~bufsize~0 < 0); {8617#true} is VALID [2020-07-11 02:29:33,476 INFO L280 TraceCheckUtils]: 12: Hoare triple {8617#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {8617#true} is VALID [2020-07-11 02:29:33,477 INFO L280 TraceCheckUtils]: 13: Hoare triple {8617#true} ~len~0 := #t~nondet1; {8617#true} is VALID [2020-07-11 02:29:33,477 INFO L280 TraceCheckUtils]: 14: Hoare triple {8617#true} havoc #t~nondet1; {8617#true} is VALID [2020-07-11 02:29:33,477 INFO L280 TraceCheckUtils]: 15: Hoare triple {8617#true} ~limit~0 := ~bufsize~0 - 4; {8617#true} is VALID [2020-07-11 02:29:33,477 INFO L280 TraceCheckUtils]: 16: Hoare triple {8617#true} ~i~0 := 0; {8617#true} is VALID [2020-07-11 02:29:33,477 INFO L280 TraceCheckUtils]: 17: Hoare triple {8617#true} assume !!(~i~0 < ~len~0); {8617#true} is VALID [2020-07-11 02:29:33,478 INFO L280 TraceCheckUtils]: 18: Hoare triple {8617#true} ~j~0 := 0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,479 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 [2020-07-11 02:29:33,479 INFO L280 TraceCheckUtils]: 20: Hoare triple {8621#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,479 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 [2020-07-11 02:29:33,479 INFO L280 TraceCheckUtils]: 22: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,480 INFO L280 TraceCheckUtils]: 23: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,480 INFO L280 TraceCheckUtils]: 24: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,481 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,481 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 [2020-07-11 02:29:33,481 INFO L280 TraceCheckUtils]: 27: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,481 INFO L280 TraceCheckUtils]: 28: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,481 INFO L280 TraceCheckUtils]: 29: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,482 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,482 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 [2020-07-11 02:29:33,483 INFO L280 TraceCheckUtils]: 32: Hoare triple {8621#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,483 INFO L280 TraceCheckUtils]: 33: Hoare triple {8621#(<= 0 main_~j~0)} havoc #t~nondet2; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,484 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 [2020-07-11 02:29:33,484 INFO L280 TraceCheckUtils]: 35: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,484 INFO L280 TraceCheckUtils]: 36: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,484 INFO L280 TraceCheckUtils]: 37: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,485 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,485 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 [2020-07-11 02:29:33,485 INFO L280 TraceCheckUtils]: 40: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,486 INFO L280 TraceCheckUtils]: 41: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,486 INFO L280 TraceCheckUtils]: 42: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,486 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,487 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 [2020-07-11 02:29:33,487 INFO L280 TraceCheckUtils]: 45: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,487 INFO L280 TraceCheckUtils]: 46: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,487 INFO L280 TraceCheckUtils]: 47: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,488 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,488 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 [2020-07-11 02:29:33,488 INFO L280 TraceCheckUtils]: 50: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,488 INFO L280 TraceCheckUtils]: 51: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,488 INFO L280 TraceCheckUtils]: 52: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,489 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:33,490 INFO L280 TraceCheckUtils]: 54: Hoare triple {8621#(<= 0 main_~j~0)} #t~post3 := ~j~0; {8646#(<= 0 |main_#t~post3|)} is VALID [2020-07-11 02:29:33,490 INFO L280 TraceCheckUtils]: 55: Hoare triple {8646#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,491 INFO L280 TraceCheckUtils]: 56: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,492 INFO L280 TraceCheckUtils]: 57: Hoare triple {8647#(<= 1 main_~j~0)} #t~post4 := ~i~0; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,492 INFO L280 TraceCheckUtils]: 58: Hoare triple {8647#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,493 INFO L280 TraceCheckUtils]: 59: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,493 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 [2020-07-11 02:29:33,493 INFO L280 TraceCheckUtils]: 61: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,493 INFO L280 TraceCheckUtils]: 62: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,493 INFO L280 TraceCheckUtils]: 63: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,494 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,494 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 [2020-07-11 02:29:33,494 INFO L280 TraceCheckUtils]: 66: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,495 INFO L280 TraceCheckUtils]: 67: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,495 INFO L280 TraceCheckUtils]: 68: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,495 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,496 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 [2020-07-11 02:29:33,496 INFO L280 TraceCheckUtils]: 71: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-11 02:29:33,496 INFO L280 TraceCheckUtils]: 72: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-11 02:29:33,496 INFO L280 TraceCheckUtils]: 73: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-11 02:29:33,497 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:33,498 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 [2020-07-11 02:29:33,498 INFO L280 TraceCheckUtils]: 76: Hoare triple {8660#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {8661#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:33,499 INFO L280 TraceCheckUtils]: 77: Hoare triple {8661#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {8618#false} is VALID [2020-07-11 02:29:33,499 INFO L280 TraceCheckUtils]: 78: Hoare triple {8618#false} assume !false; {8618#false} is VALID [2020-07-11 02:29:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-11 02:29:33,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039483685] [2020-07-11 02:29:33,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:33,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-11 02:29:33,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416488519] [2020-07-11 02:29:33,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-11 02:29:33,506 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:33,506 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-11 02:29:33,566 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:33,566 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-11 02:29:33,567 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:33,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-11 02:29:33,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-11 02:29:33,567 INFO L87 Difference]: Start difference. First operand 192 states and 252 transitions. Second operand 7 states. [2020-07-11 02:29:34,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:34,629 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2020-07-11 02:29:34,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-11 02:29:34,629 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-11 02:29:34,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:34,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:34,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-11 02:29:34,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:34,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-11 02:29:34,634 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 140 transitions. [2020-07-11 02:29:34,796 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 140 edges. 140 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:34,823 INFO L225 Difference]: With dead ends: 220 [2020-07-11 02:29:34,823 INFO L226 Difference]: Without dead ends: 218 [2020-07-11 02:29:34,824 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 [2020-07-11 02:29:34,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-11 02:29:35,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2020-07-11 02:29:35,320 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:35,320 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 206 states. [2020-07-11 02:29:35,320 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 206 states. [2020-07-11 02:29:35,321 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 206 states. [2020-07-11 02:29:35,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:35,328 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-11 02:29:35,329 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-11 02:29:35,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:35,330 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:35,330 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 218 states. [2020-07-11 02:29:35,330 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 218 states. [2020-07-11 02:29:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:35,338 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-11 02:29:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-11 02:29:35,339 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:35,339 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:35,339 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:35,339 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:35,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-11 02:29:35,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-11 02:29:35,347 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 79 [2020-07-11 02:29:35,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:35,347 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-11 02:29:35,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-11 02:29:35,347 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 206 states and 269 transitions. [2020-07-11 02:29:35,800 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:35,800 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-11 02:29:35,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-11 02:29:35,801 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:35,802 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] [2020-07-11 02:29:35,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-11 02:29:35,802 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:35,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:35,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1064000984, now seen corresponding path program 1 times [2020-07-11 02:29:35,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:35,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251766974] [2020-07-11 02:29:35,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,924 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,924 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-11 02:29:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,928 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,928 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,928 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,929 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,932 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,933 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,933 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,934 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,938 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,938 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,938 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,939 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,943 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,943 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,944 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,944 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,948 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,948 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,948 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,949 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,953 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,953 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,953 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,954 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,957 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,958 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,958 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,959 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,962 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,963 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,963 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,964 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:35,967 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,968 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,968 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,969 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,969 INFO L263 TraceCheckUtils]: 0: Hoare triple {9958#true} call ULTIMATE.init(); {9958#true} is VALID [2020-07-11 02:29:35,969 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,969 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-11 02:29:35,969 INFO L263 TraceCheckUtils]: 3: Hoare triple {9958#true} call #t~ret10 := main(); {9958#true} is VALID [2020-07-11 02:29:35,970 INFO L280 TraceCheckUtils]: 4: Hoare triple {9958#true} havoc ~len~0; {9958#true} is VALID [2020-07-11 02:29:35,970 INFO L280 TraceCheckUtils]: 5: Hoare triple {9958#true} havoc ~i~0; {9958#true} is VALID [2020-07-11 02:29:35,970 INFO L280 TraceCheckUtils]: 6: Hoare triple {9958#true} havoc ~j~0; {9958#true} is VALID [2020-07-11 02:29:35,970 INFO L280 TraceCheckUtils]: 7: Hoare triple {9958#true} havoc ~bufsize~0; {9958#true} is VALID [2020-07-11 02:29:35,970 INFO L280 TraceCheckUtils]: 8: Hoare triple {9958#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9958#true} is VALID [2020-07-11 02:29:35,970 INFO L280 TraceCheckUtils]: 9: Hoare triple {9958#true} ~bufsize~0 := #t~nondet0; {9958#true} is VALID [2020-07-11 02:29:35,971 INFO L280 TraceCheckUtils]: 10: Hoare triple {9958#true} havoc #t~nondet0; {9958#true} is VALID [2020-07-11 02:29:35,971 INFO L280 TraceCheckUtils]: 11: Hoare triple {9958#true} assume !(~bufsize~0 < 0); {9958#true} is VALID [2020-07-11 02:29:35,971 INFO L280 TraceCheckUtils]: 12: Hoare triple {9958#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9958#true} is VALID [2020-07-11 02:29:35,971 INFO L280 TraceCheckUtils]: 13: Hoare triple {9958#true} ~len~0 := #t~nondet1; {9958#true} is VALID [2020-07-11 02:29:35,971 INFO L280 TraceCheckUtils]: 14: Hoare triple {9958#true} havoc #t~nondet1; {9958#true} is VALID [2020-07-11 02:29:35,971 INFO L280 TraceCheckUtils]: 15: Hoare triple {9958#true} ~limit~0 := ~bufsize~0 - 4; {9958#true} is VALID [2020-07-11 02:29:35,972 INFO L280 TraceCheckUtils]: 16: Hoare triple {9958#true} ~i~0 := 0; {9958#true} is VALID [2020-07-11 02:29:35,972 INFO L280 TraceCheckUtils]: 17: Hoare triple {9958#true} assume !!(~i~0 < ~len~0); {9958#true} is VALID [2020-07-11 02:29:35,972 INFO L280 TraceCheckUtils]: 18: Hoare triple {9958#true} ~j~0 := 0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,973 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 [2020-07-11 02:29:35,973 INFO L280 TraceCheckUtils]: 20: Hoare triple {9962#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,974 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 [2020-07-11 02:29:35,974 INFO L280 TraceCheckUtils]: 22: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,974 INFO L280 TraceCheckUtils]: 23: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,974 INFO L280 TraceCheckUtils]: 24: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,975 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,975 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 [2020-07-11 02:29:35,975 INFO L280 TraceCheckUtils]: 27: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,976 INFO L280 TraceCheckUtils]: 28: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,976 INFO L280 TraceCheckUtils]: 29: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,976 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,977 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 [2020-07-11 02:29:35,977 INFO L280 TraceCheckUtils]: 32: Hoare triple {9962#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,978 INFO L280 TraceCheckUtils]: 33: Hoare triple {9962#(<= 0 main_~j~0)} havoc #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,978 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 [2020-07-11 02:29:35,978 INFO L280 TraceCheckUtils]: 35: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,978 INFO L280 TraceCheckUtils]: 36: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,979 INFO L280 TraceCheckUtils]: 37: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,979 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,980 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 [2020-07-11 02:29:35,980 INFO L280 TraceCheckUtils]: 40: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,980 INFO L280 TraceCheckUtils]: 41: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,980 INFO L280 TraceCheckUtils]: 42: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,981 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,981 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 [2020-07-11 02:29:35,981 INFO L280 TraceCheckUtils]: 45: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,981 INFO L280 TraceCheckUtils]: 46: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,981 INFO L280 TraceCheckUtils]: 47: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,982 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,982 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 [2020-07-11 02:29:35,982 INFO L280 TraceCheckUtils]: 50: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,983 INFO L280 TraceCheckUtils]: 51: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,983 INFO L280 TraceCheckUtils]: 52: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,983 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:35,984 INFO L280 TraceCheckUtils]: 54: Hoare triple {9962#(<= 0 main_~j~0)} #t~post8 := ~j~0; {9987#(<= 0 |main_#t~post8|)} is VALID [2020-07-11 02:29:35,985 INFO L280 TraceCheckUtils]: 55: Hoare triple {9987#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,985 INFO L280 TraceCheckUtils]: 56: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,986 INFO L280 TraceCheckUtils]: 57: Hoare triple {9988#(<= 1 main_~j~0)} #t~post9 := ~i~0; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,986 INFO L280 TraceCheckUtils]: 58: Hoare triple {9988#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,987 INFO L280 TraceCheckUtils]: 59: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,987 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 [2020-07-11 02:29:35,988 INFO L280 TraceCheckUtils]: 61: Hoare triple {9988#(<= 1 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,988 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 [2020-07-11 02:29:35,988 INFO L280 TraceCheckUtils]: 63: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,988 INFO L280 TraceCheckUtils]: 64: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,989 INFO L280 TraceCheckUtils]: 65: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,989 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,989 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 [2020-07-11 02:29:35,990 INFO L280 TraceCheckUtils]: 68: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,990 INFO L280 TraceCheckUtils]: 69: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,990 INFO L280 TraceCheckUtils]: 70: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,991 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,991 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 [2020-07-11 02:29:35,991 INFO L280 TraceCheckUtils]: 73: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-11 02:29:35,991 INFO L280 TraceCheckUtils]: 74: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-11 02:29:35,991 INFO L280 TraceCheckUtils]: 75: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-11 02:29:35,992 INFO L275 TraceCheckUtils]: 76: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:35,993 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 [2020-07-11 02:29:35,993 INFO L280 TraceCheckUtils]: 78: Hoare triple {10001#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {10002#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:35,993 INFO L280 TraceCheckUtils]: 79: Hoare triple {10002#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {9959#false} is VALID [2020-07-11 02:29:35,993 INFO L280 TraceCheckUtils]: 80: Hoare triple {9959#false} assume !false; {9959#false} is VALID [2020-07-11 02:29:35,997 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2020-07-11 02:29:35,997 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251766974] [2020-07-11 02:29:35,997 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:35,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-11 02:29:35,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68395410] [2020-07-11 02:29:35,998 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-11 02:29:35,998 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:35,998 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-11 02:29:36,066 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:36,066 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-11 02:29:36,067 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:36,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-11 02:29:36,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-11 02:29:36,067 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 7 states. [2020-07-11 02:29:37,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:37,351 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2020-07-11 02:29:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-11 02:29:37,351 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-11 02:29:37,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:37,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:37,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-11 02:29:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-11 02:29:37,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-11 02:29:37,358 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 165 transitions. [2020-07-11 02:29:37,558 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:37,565 INFO L225 Difference]: With dead ends: 252 [2020-07-11 02:29:37,565 INFO L226 Difference]: Without dead ends: 246 [2020-07-11 02:29:37,570 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 [2020-07-11 02:29:37,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-11 02:29:38,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2020-07-11 02:29:38,208 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:38,208 INFO L82 GeneralOperation]: Start isEquivalent. First operand 246 states. Second operand 230 states. [2020-07-11 02:29:38,208 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 230 states. [2020-07-11 02:29:38,209 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 230 states. [2020-07-11 02:29:38,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:38,218 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-11 02:29:38,218 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-11 02:29:38,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:38,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:38,220 INFO L74 IsIncluded]: Start isIncluded. First operand 230 states. Second operand 246 states. [2020-07-11 02:29:38,220 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 246 states. [2020-07-11 02:29:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:38,229 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-11 02:29:38,229 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-11 02:29:38,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:38,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:38,231 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:38,231 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-11 02:29:38,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2020-07-11 02:29:38,239 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 81 [2020-07-11 02:29:38,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:38,240 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2020-07-11 02:29:38,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-11 02:29:38,240 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 230 states and 302 transitions. [2020-07-11 02:29:38,725 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 302 edges. 302 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:38,726 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2020-07-11 02:29:38,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-11 02:29:38,727 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:38,727 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] [2020-07-11 02:29:38,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-11 02:29:38,728 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:38,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:38,728 INFO L82 PathProgramCache]: Analyzing trace with hash -895183749, now seen corresponding path program 1 times [2020-07-11 02:29:38,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:38,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993608938] [2020-07-11 02:29:38,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:38,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,887 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,887 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-11 02:29:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,892 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,893 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,893 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,894 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 [2020-07-11 02:29:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,899 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,900 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,902 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,909 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 [2020-07-11 02:29:38,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,916 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,917 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,917 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,918 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 [2020-07-11 02:29:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,927 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,927 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,928 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,929 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 [2020-07-11 02:29:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,939 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,939 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,939 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,940 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 [2020-07-11 02:29:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,950 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,951 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,951 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,952 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 [2020-07-11 02:29:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,959 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,960 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,960 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,962 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 [2020-07-11 02:29:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,968 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,968 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,969 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,970 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 [2020-07-11 02:29:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,975 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,975 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,976 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,977 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 [2020-07-11 02:29:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:38,985 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,985 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,986 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,987 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 [2020-07-11 02:29:38,987 INFO L263 TraceCheckUtils]: 0: Hoare triple {11467#true} call ULTIMATE.init(); {11467#true} is VALID [2020-07-11 02:29:38,988 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:38,988 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-11 02:29:38,988 INFO L263 TraceCheckUtils]: 3: Hoare triple {11467#true} call #t~ret10 := main(); {11467#true} is VALID [2020-07-11 02:29:38,989 INFO L280 TraceCheckUtils]: 4: Hoare triple {11467#true} havoc ~len~0; {11467#true} is VALID [2020-07-11 02:29:38,989 INFO L280 TraceCheckUtils]: 5: Hoare triple {11467#true} havoc ~i~0; {11467#true} is VALID [2020-07-11 02:29:38,989 INFO L280 TraceCheckUtils]: 6: Hoare triple {11467#true} havoc ~j~0; {11467#true} is VALID [2020-07-11 02:29:38,989 INFO L280 TraceCheckUtils]: 7: Hoare triple {11467#true} havoc ~bufsize~0; {11467#true} is VALID [2020-07-11 02:29:38,990 INFO L280 TraceCheckUtils]: 8: Hoare triple {11467#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {11467#true} is VALID [2020-07-11 02:29:38,990 INFO L280 TraceCheckUtils]: 9: Hoare triple {11467#true} ~bufsize~0 := #t~nondet0; {11467#true} is VALID [2020-07-11 02:29:38,990 INFO L280 TraceCheckUtils]: 10: Hoare triple {11467#true} havoc #t~nondet0; {11467#true} is VALID [2020-07-11 02:29:38,990 INFO L280 TraceCheckUtils]: 11: Hoare triple {11467#true} assume !(~bufsize~0 < 0); {11467#true} is VALID [2020-07-11 02:29:38,991 INFO L280 TraceCheckUtils]: 12: Hoare triple {11467#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {11467#true} is VALID [2020-07-11 02:29:38,991 INFO L280 TraceCheckUtils]: 13: Hoare triple {11467#true} ~len~0 := #t~nondet1; {11467#true} is VALID [2020-07-11 02:29:38,991 INFO L280 TraceCheckUtils]: 14: Hoare triple {11467#true} havoc #t~nondet1; {11467#true} is VALID [2020-07-11 02:29:38,992 INFO L280 TraceCheckUtils]: 15: Hoare triple {11467#true} ~limit~0 := ~bufsize~0 - 4; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-11 02:29:38,993 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 [2020-07-11 02:29:38,994 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 [2020-07-11 02:29:38,995 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 [2020-07-11 02:29:38,996 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 [2020-07-11 02:29:38,997 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 [2020-07-11 02:29:38,997 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 [2020-07-11 02:29:38,998 INFO L280 TraceCheckUtils]: 22: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:38,998 INFO L280 TraceCheckUtils]: 23: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:38,998 INFO L280 TraceCheckUtils]: 24: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,000 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 [2020-07-11 02:29:39,000 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 [2020-07-11 02:29:39,000 INFO L280 TraceCheckUtils]: 27: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,000 INFO L280 TraceCheckUtils]: 28: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,001 INFO L280 TraceCheckUtils]: 29: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,002 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 [2020-07-11 02:29:39,003 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 [2020-07-11 02:29:39,004 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 [2020-07-11 02:29:39,004 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 [2020-07-11 02:29:39,005 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 [2020-07-11 02:29:39,005 INFO L280 TraceCheckUtils]: 35: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,005 INFO L280 TraceCheckUtils]: 36: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,006 INFO L280 TraceCheckUtils]: 37: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,007 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 [2020-07-11 02:29:39,008 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 [2020-07-11 02:29:39,008 INFO L280 TraceCheckUtils]: 40: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,008 INFO L280 TraceCheckUtils]: 41: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,009 INFO L280 TraceCheckUtils]: 42: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,010 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 [2020-07-11 02:29:39,010 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 [2020-07-11 02:29:39,010 INFO L280 TraceCheckUtils]: 45: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,011 INFO L280 TraceCheckUtils]: 46: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,011 INFO L280 TraceCheckUtils]: 47: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,012 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 [2020-07-11 02:29:39,012 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 [2020-07-11 02:29:39,013 INFO L280 TraceCheckUtils]: 50: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,013 INFO L280 TraceCheckUtils]: 51: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,013 INFO L280 TraceCheckUtils]: 52: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,014 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 [2020-07-11 02:29:39,015 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 [2020-07-11 02:29:39,016 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 [2020-07-11 02:29:39,017 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 [2020-07-11 02:29:39,018 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 [2020-07-11 02:29:39,018 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 [2020-07-11 02:29:39,019 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 [2020-07-11 02:29:39,020 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 [2020-07-11 02:29:39,020 INFO L280 TraceCheckUtils]: 61: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,020 INFO L280 TraceCheckUtils]: 62: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,021 INFO L280 TraceCheckUtils]: 63: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,022 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 [2020-07-11 02:29:39,022 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 [2020-07-11 02:29:39,023 INFO L280 TraceCheckUtils]: 66: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,023 INFO L280 TraceCheckUtils]: 67: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,023 INFO L280 TraceCheckUtils]: 68: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,024 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 [2020-07-11 02:29:39,025 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 [2020-07-11 02:29:39,025 INFO L280 TraceCheckUtils]: 71: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,025 INFO L280 TraceCheckUtils]: 72: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,026 INFO L280 TraceCheckUtils]: 73: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,026 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 [2020-07-11 02:29:39,027 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 [2020-07-11 02:29:39,027 INFO L280 TraceCheckUtils]: 76: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-11 02:29:39,027 INFO L280 TraceCheckUtils]: 77: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-11 02:29:39,027 INFO L280 TraceCheckUtils]: 78: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-11 02:29:39,028 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 [2020-07-11 02:29:39,029 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 [2020-07-11 02:29:39,029 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 [2020-07-11 02:29:39,030 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 [2020-07-11 02:29:39,031 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 [2020-07-11 02:29:39,032 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 [2020-07-11 02:29:39,033 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 [2020-07-11 02:29:39,034 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 [2020-07-11 02:29:39,035 INFO L280 TraceCheckUtils]: 87: Hoare triple {11517#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {11518#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:39,036 INFO L280 TraceCheckUtils]: 88: Hoare triple {11518#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {11468#false} is VALID [2020-07-11 02:29:39,036 INFO L280 TraceCheckUtils]: 89: Hoare triple {11468#false} assume !false; {11468#false} is VALID [2020-07-11 02:29:39,052 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-07-11 02:29:39,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993608938] [2020-07-11 02:29:39,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:39,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-11 02:29:39,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624050358] [2020-07-11 02:29:39,054 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-11 02:29:39,054 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:39,055 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-11 02:29:39,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:39,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-11 02:29:39,154 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:39,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-11 02:29:39,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-11 02:29:39,155 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand 10 states. [2020-07-11 02:29:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:40,860 INFO L93 Difference]: Finished difference Result 236 states and 307 transitions. [2020-07-11 02:29:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-11 02:29:40,860 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-11 02:29:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:40,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-11 02:29:40,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-11 02:29:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-11 02:29:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-11 02:29:40,864 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 91 transitions. [2020-07-11 02:29:40,998 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:41,005 INFO L225 Difference]: With dead ends: 236 [2020-07-11 02:29:41,005 INFO L226 Difference]: Without dead ends: 234 [2020-07-11 02:29:41,006 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 [2020-07-11 02:29:41,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-11 02:29:41,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-07-11 02:29:41,589 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:41,589 INFO L82 GeneralOperation]: Start isEquivalent. First operand 234 states. Second operand 234 states. [2020-07-11 02:29:41,589 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-11 02:29:41,590 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-11 02:29:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:41,600 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-11 02:29:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-11 02:29:41,602 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:41,602 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:41,602 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-11 02:29:41,602 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-11 02:29:41,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:41,610 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-11 02:29:41,611 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-11 02:29:41,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:41,612 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:41,612 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:41,612 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:41,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-11 02:29:41,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2020-07-11 02:29:41,620 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 90 [2020-07-11 02:29:41,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:41,620 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2020-07-11 02:29:41,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-11 02:29:41,621 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 234 states and 305 transitions. [2020-07-11 02:29:42,121 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 305 edges. 305 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:42,121 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-11 02:29:42,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-11 02:29:42,123 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:42,123 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] [2020-07-11 02:29:42,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-11 02:29:42,124 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:42,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:42,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1272604239, now seen corresponding path program 1 times [2020-07-11 02:29:42,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:42,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350102719] [2020-07-11 02:29:42,125 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:42,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,230 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,230 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-11 02:29:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,233 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,233 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,234 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,244 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,245 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,245 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,249 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,249 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,250 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,250 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,259 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,260 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,260 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,260 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,265 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,266 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,266 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,267 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,274 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,274 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,274 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,275 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,279 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,279 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,279 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,280 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,284 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,284 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,285 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,285 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,290 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,291 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,291 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,292 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,296 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,297 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,297 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,297 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:42,301 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,302 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,302 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,302 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:42,303 INFO L263 TraceCheckUtils]: 0: Hoare triple {12945#true} call ULTIMATE.init(); {12945#true} is VALID [2020-07-11 02:29:42,303 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,303 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-11 02:29:42,303 INFO L263 TraceCheckUtils]: 3: Hoare triple {12945#true} call #t~ret10 := main(); {12945#true} is VALID [2020-07-11 02:29:42,303 INFO L280 TraceCheckUtils]: 4: Hoare triple {12945#true} havoc ~len~0; {12945#true} is VALID [2020-07-11 02:29:42,304 INFO L280 TraceCheckUtils]: 5: Hoare triple {12945#true} havoc ~i~0; {12945#true} is VALID [2020-07-11 02:29:42,304 INFO L280 TraceCheckUtils]: 6: Hoare triple {12945#true} havoc ~j~0; {12945#true} is VALID [2020-07-11 02:29:42,304 INFO L280 TraceCheckUtils]: 7: Hoare triple {12945#true} havoc ~bufsize~0; {12945#true} is VALID [2020-07-11 02:29:42,304 INFO L280 TraceCheckUtils]: 8: Hoare triple {12945#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12945#true} is VALID [2020-07-11 02:29:42,304 INFO L280 TraceCheckUtils]: 9: Hoare triple {12945#true} ~bufsize~0 := #t~nondet0; {12945#true} is VALID [2020-07-11 02:29:42,304 INFO L280 TraceCheckUtils]: 10: Hoare triple {12945#true} havoc #t~nondet0; {12945#true} is VALID [2020-07-11 02:29:42,305 INFO L280 TraceCheckUtils]: 11: Hoare triple {12945#true} assume !(~bufsize~0 < 0); {12945#true} is VALID [2020-07-11 02:29:42,305 INFO L280 TraceCheckUtils]: 12: Hoare triple {12945#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12945#true} is VALID [2020-07-11 02:29:42,305 INFO L280 TraceCheckUtils]: 13: Hoare triple {12945#true} ~len~0 := #t~nondet1; {12945#true} is VALID [2020-07-11 02:29:42,305 INFO L280 TraceCheckUtils]: 14: Hoare triple {12945#true} havoc #t~nondet1; {12945#true} is VALID [2020-07-11 02:29:42,305 INFO L280 TraceCheckUtils]: 15: Hoare triple {12945#true} ~limit~0 := ~bufsize~0 - 4; {12945#true} is VALID [2020-07-11 02:29:42,305 INFO L280 TraceCheckUtils]: 16: Hoare triple {12945#true} ~i~0 := 0; {12945#true} is VALID [2020-07-11 02:29:42,306 INFO L280 TraceCheckUtils]: 17: Hoare triple {12945#true} assume !!(~i~0 < ~len~0); {12945#true} is VALID [2020-07-11 02:29:42,306 INFO L280 TraceCheckUtils]: 18: Hoare triple {12945#true} ~j~0 := 0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,307 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 [2020-07-11 02:29:42,307 INFO L280 TraceCheckUtils]: 20: Hoare triple {12949#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,307 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 [2020-07-11 02:29:42,308 INFO L280 TraceCheckUtils]: 22: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,308 INFO L280 TraceCheckUtils]: 23: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,308 INFO L280 TraceCheckUtils]: 24: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,310 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,310 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 [2020-07-11 02:29:42,310 INFO L280 TraceCheckUtils]: 27: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,310 INFO L280 TraceCheckUtils]: 28: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,310 INFO L280 TraceCheckUtils]: 29: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,311 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,311 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 [2020-07-11 02:29:42,312 INFO L280 TraceCheckUtils]: 32: Hoare triple {12949#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,312 INFO L280 TraceCheckUtils]: 33: Hoare triple {12949#(<= 0 main_~j~0)} havoc #t~nondet2; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,313 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 [2020-07-11 02:29:42,313 INFO L280 TraceCheckUtils]: 35: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,313 INFO L280 TraceCheckUtils]: 36: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,313 INFO L280 TraceCheckUtils]: 37: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,314 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,314 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 [2020-07-11 02:29:42,314 INFO L280 TraceCheckUtils]: 40: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,314 INFO L280 TraceCheckUtils]: 41: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,315 INFO L280 TraceCheckUtils]: 42: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,315 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,315 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 [2020-07-11 02:29:42,316 INFO L280 TraceCheckUtils]: 45: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,316 INFO L280 TraceCheckUtils]: 46: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,316 INFO L280 TraceCheckUtils]: 47: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,317 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,317 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 [2020-07-11 02:29:42,317 INFO L280 TraceCheckUtils]: 50: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,317 INFO L280 TraceCheckUtils]: 51: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,317 INFO L280 TraceCheckUtils]: 52: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,318 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:42,318 INFO L280 TraceCheckUtils]: 54: Hoare triple {12949#(<= 0 main_~j~0)} #t~post3 := ~j~0; {12974#(<= 0 |main_#t~post3|)} is VALID [2020-07-11 02:29:42,319 INFO L280 TraceCheckUtils]: 55: Hoare triple {12974#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,320 INFO L280 TraceCheckUtils]: 56: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,320 INFO L280 TraceCheckUtils]: 57: Hoare triple {12975#(<= 1 main_~j~0)} #t~post4 := ~i~0; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,320 INFO L280 TraceCheckUtils]: 58: Hoare triple {12975#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,321 INFO L280 TraceCheckUtils]: 59: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,321 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 [2020-07-11 02:29:42,321 INFO L280 TraceCheckUtils]: 61: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,322 INFO L280 TraceCheckUtils]: 62: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,322 INFO L280 TraceCheckUtils]: 63: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,322 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,323 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 [2020-07-11 02:29:42,323 INFO L280 TraceCheckUtils]: 66: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,323 INFO L280 TraceCheckUtils]: 67: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,323 INFO L280 TraceCheckUtils]: 68: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,324 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,324 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 [2020-07-11 02:29:42,324 INFO L280 TraceCheckUtils]: 71: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,324 INFO L280 TraceCheckUtils]: 72: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,325 INFO L280 TraceCheckUtils]: 73: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,326 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,326 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 [2020-07-11 02:29:42,326 INFO L280 TraceCheckUtils]: 76: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,326 INFO L280 TraceCheckUtils]: 77: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,326 INFO L280 TraceCheckUtils]: 78: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,327 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:42,328 INFO L280 TraceCheckUtils]: 80: Hoare triple {12975#(<= 1 main_~j~0)} #t~post5 := ~j~0; {12992#(<= 1 |main_#t~post5|)} is VALID [2020-07-11 02:29:42,328 INFO L280 TraceCheckUtils]: 81: Hoare triple {12992#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:42,329 INFO L280 TraceCheckUtils]: 82: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:42,329 INFO L280 TraceCheckUtils]: 83: Hoare triple {12993#(<= 2 main_~j~0)} #t~post6 := ~i~0; {12993#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:42,330 INFO L280 TraceCheckUtils]: 84: Hoare triple {12993#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:42,330 INFO L280 TraceCheckUtils]: 85: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:42,330 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 [2020-07-11 02:29:42,330 INFO L280 TraceCheckUtils]: 87: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-11 02:29:42,331 INFO L280 TraceCheckUtils]: 88: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-11 02:29:42,331 INFO L280 TraceCheckUtils]: 89: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-11 02:29:42,332 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:42,335 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 [2020-07-11 02:29:42,338 INFO L280 TraceCheckUtils]: 92: Hoare triple {12998#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {12999#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:42,338 INFO L280 TraceCheckUtils]: 93: Hoare triple {12999#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {12946#false} is VALID [2020-07-11 02:29:42,338 INFO L280 TraceCheckUtils]: 94: Hoare triple {12946#false} assume !false; {12946#false} is VALID [2020-07-11 02:29:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2020-07-11 02:29:42,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350102719] [2020-07-11 02:29:42,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:42,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-11 02:29:42,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564280236] [2020-07-11 02:29:42,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-11 02:29:42,346 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:42,346 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-11 02:29:42,418 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:42,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-11 02:29:42,418 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:42,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-11 02:29:42,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-11 02:29:42,419 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand 9 states. [2020-07-11 02:29:43,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:43,854 INFO L93 Difference]: Finished difference Result 262 states and 335 transitions. [2020-07-11 02:29:43,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-11 02:29:43,854 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-11 02:29:43,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:43,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:43,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-11 02:29:43,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:43,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-11 02:29:43,859 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 150 transitions. [2020-07-11 02:29:44,052 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:44,059 INFO L225 Difference]: With dead ends: 262 [2020-07-11 02:29:44,059 INFO L226 Difference]: Without dead ends: 260 [2020-07-11 02:29:44,061 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 [2020-07-11 02:29:44,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-11 02:29:44,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2020-07-11 02:29:44,612 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:44,613 INFO L82 GeneralOperation]: Start isEquivalent. First operand 260 states. Second operand 246 states. [2020-07-11 02:29:44,613 INFO L74 IsIncluded]: Start isIncluded. First operand 260 states. Second operand 246 states. [2020-07-11 02:29:44,613 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 246 states. [2020-07-11 02:29:44,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:44,622 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-11 02:29:44,622 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-11 02:29:44,624 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:44,624 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:44,624 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 260 states. [2020-07-11 02:29:44,624 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 260 states. [2020-07-11 02:29:44,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:44,633 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-11 02:29:44,633 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-11 02:29:44,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:44,634 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:44,635 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:44,635 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:44,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-07-11 02:29:44,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 318 transitions. [2020-07-11 02:29:44,642 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 318 transitions. Word has length 95 [2020-07-11 02:29:44,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:44,643 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 318 transitions. [2020-07-11 02:29:44,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-11 02:29:44,643 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 246 states and 318 transitions. [2020-07-11 02:29:45,176 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 318 edges. 318 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 318 transitions. [2020-07-11 02:29:45,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-11 02:29:45,179 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:45,179 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] [2020-07-11 02:29:45,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-11 02:29:45,179 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:45,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:45,180 INFO L82 PathProgramCache]: Analyzing trace with hash -960498755, now seen corresponding path program 1 times [2020-07-11 02:29:45,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:45,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [12575499] [2020-07-11 02:29:45,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,299 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,299 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-11 02:29:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,303 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,303 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,303 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,304 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,308 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,308 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,309 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,310 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,314 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,314 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,315 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,319 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,319 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,320 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,321 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,326 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,327 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,327 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,329 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,333 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,333 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,334 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,334 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,339 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,340 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,340 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,341 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,345 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,345 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,345 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,346 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,350 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,350 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,351 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,352 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,359 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,359 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,359 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,360 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,364 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,365 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,365 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,365 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,370 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,370 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,371 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,372 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:45,376 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,376 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,376 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,379 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:45,379 INFO L263 TraceCheckUtils]: 0: Hoare triple {14548#true} call ULTIMATE.init(); {14548#true} is VALID [2020-07-11 02:29:45,379 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,379 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-11 02:29:45,380 INFO L263 TraceCheckUtils]: 3: Hoare triple {14548#true} call #t~ret10 := main(); {14548#true} is VALID [2020-07-11 02:29:45,380 INFO L280 TraceCheckUtils]: 4: Hoare triple {14548#true} havoc ~len~0; {14548#true} is VALID [2020-07-11 02:29:45,380 INFO L280 TraceCheckUtils]: 5: Hoare triple {14548#true} havoc ~i~0; {14548#true} is VALID [2020-07-11 02:29:45,380 INFO L280 TraceCheckUtils]: 6: Hoare triple {14548#true} havoc ~j~0; {14548#true} is VALID [2020-07-11 02:29:45,380 INFO L280 TraceCheckUtils]: 7: Hoare triple {14548#true} havoc ~bufsize~0; {14548#true} is VALID [2020-07-11 02:29:45,380 INFO L280 TraceCheckUtils]: 8: Hoare triple {14548#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {14548#true} is VALID [2020-07-11 02:29:45,381 INFO L280 TraceCheckUtils]: 9: Hoare triple {14548#true} ~bufsize~0 := #t~nondet0; {14548#true} is VALID [2020-07-11 02:29:45,381 INFO L280 TraceCheckUtils]: 10: Hoare triple {14548#true} havoc #t~nondet0; {14548#true} is VALID [2020-07-11 02:29:45,381 INFO L280 TraceCheckUtils]: 11: Hoare triple {14548#true} assume !(~bufsize~0 < 0); {14548#true} is VALID [2020-07-11 02:29:45,381 INFO L280 TraceCheckUtils]: 12: Hoare triple {14548#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {14548#true} is VALID [2020-07-11 02:29:45,381 INFO L280 TraceCheckUtils]: 13: Hoare triple {14548#true} ~len~0 := #t~nondet1; {14548#true} is VALID [2020-07-11 02:29:45,381 INFO L280 TraceCheckUtils]: 14: Hoare triple {14548#true} havoc #t~nondet1; {14548#true} is VALID [2020-07-11 02:29:45,382 INFO L280 TraceCheckUtils]: 15: Hoare triple {14548#true} ~limit~0 := ~bufsize~0 - 4; {14548#true} is VALID [2020-07-11 02:29:45,383 INFO L280 TraceCheckUtils]: 16: Hoare triple {14548#true} ~i~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,383 INFO L280 TraceCheckUtils]: 17: Hoare triple {14552#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,384 INFO L280 TraceCheckUtils]: 18: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,384 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 [2020-07-11 02:29:45,384 INFO L280 TraceCheckUtils]: 20: Hoare triple {14552#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,385 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 [2020-07-11 02:29:45,385 INFO L280 TraceCheckUtils]: 22: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,385 INFO L280 TraceCheckUtils]: 23: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,385 INFO L280 TraceCheckUtils]: 24: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,386 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,386 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 [2020-07-11 02:29:45,386 INFO L280 TraceCheckUtils]: 27: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,387 INFO L280 TraceCheckUtils]: 28: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,387 INFO L280 TraceCheckUtils]: 29: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,387 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,388 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 [2020-07-11 02:29:45,389 INFO L280 TraceCheckUtils]: 32: Hoare triple {14552#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,389 INFO L280 TraceCheckUtils]: 33: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,390 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 [2020-07-11 02:29:45,390 INFO L280 TraceCheckUtils]: 35: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,390 INFO L280 TraceCheckUtils]: 36: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,390 INFO L280 TraceCheckUtils]: 37: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,391 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,391 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 [2020-07-11 02:29:45,391 INFO L280 TraceCheckUtils]: 40: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,391 INFO L280 TraceCheckUtils]: 41: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,392 INFO L280 TraceCheckUtils]: 42: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,392 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,392 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 [2020-07-11 02:29:45,393 INFO L280 TraceCheckUtils]: 45: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,393 INFO L280 TraceCheckUtils]: 46: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,393 INFO L280 TraceCheckUtils]: 47: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,394 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,394 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 [2020-07-11 02:29:45,394 INFO L280 TraceCheckUtils]: 50: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,394 INFO L280 TraceCheckUtils]: 51: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,394 INFO L280 TraceCheckUtils]: 52: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,395 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,395 INFO L280 TraceCheckUtils]: 54: Hoare triple {14552#(<= 0 main_~i~0)} #t~post8 := ~j~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,396 INFO L280 TraceCheckUtils]: 55: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,396 INFO L280 TraceCheckUtils]: 56: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:45,397 INFO L280 TraceCheckUtils]: 57: Hoare triple {14552#(<= 0 main_~i~0)} #t~post9 := ~i~0; {14577#(<= 0 |main_#t~post9|)} is VALID [2020-07-11 02:29:45,398 INFO L280 TraceCheckUtils]: 58: Hoare triple {14577#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,398 INFO L280 TraceCheckUtils]: 59: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,399 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 [2020-07-11 02:29:45,399 INFO L280 TraceCheckUtils]: 61: Hoare triple {14578#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,399 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 [2020-07-11 02:29:45,399 INFO L280 TraceCheckUtils]: 63: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,400 INFO L280 TraceCheckUtils]: 64: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,400 INFO L280 TraceCheckUtils]: 65: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,400 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,401 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 [2020-07-11 02:29:45,401 INFO L280 TraceCheckUtils]: 68: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,401 INFO L280 TraceCheckUtils]: 69: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,401 INFO L280 TraceCheckUtils]: 70: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,402 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,402 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 [2020-07-11 02:29:45,403 INFO L280 TraceCheckUtils]: 73: Hoare triple {14578#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,403 INFO L280 TraceCheckUtils]: 74: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~nondet2; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,404 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 [2020-07-11 02:29:45,404 INFO L280 TraceCheckUtils]: 76: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,404 INFO L280 TraceCheckUtils]: 77: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,404 INFO L280 TraceCheckUtils]: 78: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,405 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,405 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 [2020-07-11 02:29:45,405 INFO L280 TraceCheckUtils]: 81: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,405 INFO L280 TraceCheckUtils]: 82: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,406 INFO L280 TraceCheckUtils]: 83: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,406 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,406 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 [2020-07-11 02:29:45,407 INFO L280 TraceCheckUtils]: 86: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,407 INFO L280 TraceCheckUtils]: 87: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,407 INFO L280 TraceCheckUtils]: 88: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,408 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,408 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 [2020-07-11 02:29:45,408 INFO L280 TraceCheckUtils]: 91: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,408 INFO L280 TraceCheckUtils]: 92: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,408 INFO L280 TraceCheckUtils]: 93: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,409 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,409 INFO L280 TraceCheckUtils]: 95: Hoare triple {14578#(<= 1 main_~i~0)} #t~post3 := ~j~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,410 INFO L280 TraceCheckUtils]: 96: Hoare triple {14578#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,411 INFO L280 TraceCheckUtils]: 97: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:45,411 INFO L280 TraceCheckUtils]: 98: Hoare triple {14578#(<= 1 main_~i~0)} #t~post4 := ~i~0; {14603#(<= 1 |main_#t~post4|)} is VALID [2020-07-11 02:29:45,413 INFO L280 TraceCheckUtils]: 99: Hoare triple {14603#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:45,413 INFO L280 TraceCheckUtils]: 100: Hoare triple {14604#(<= 2 main_~i~0)} havoc #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:45,413 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 [2020-07-11 02:29:45,413 INFO L280 TraceCheckUtils]: 102: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-11 02:29:45,414 INFO L280 TraceCheckUtils]: 103: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-11 02:29:45,414 INFO L280 TraceCheckUtils]: 104: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-11 02:29:45,416 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:45,417 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 [2020-07-11 02:29:45,417 INFO L280 TraceCheckUtils]: 107: Hoare triple {14609#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {14610#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:45,418 INFO L280 TraceCheckUtils]: 108: Hoare triple {14610#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {14549#false} is VALID [2020-07-11 02:29:45,418 INFO L280 TraceCheckUtils]: 109: Hoare triple {14549#false} assume !false; {14549#false} is VALID [2020-07-11 02:29:45,426 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-11 02:29:45,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [12575499] [2020-07-11 02:29:45,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:45,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-11 02:29:45,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352365812] [2020-07-11 02:29:45,427 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-11 02:29:45,428 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:45,428 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-11 02:29:45,516 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:45,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-11 02:29:45,517 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:45,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-11 02:29:45,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-11 02:29:45,518 INFO L87 Difference]: Start difference. First operand 246 states and 318 transitions. Second operand 9 states. [2020-07-11 02:29:47,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:47,320 INFO L93 Difference]: Finished difference Result 293 states and 378 transitions. [2020-07-11 02:29:47,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-11 02:29:47,321 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-11 02:29:47,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:47,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-11 02:29:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-11 02:29:47,327 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 186 transitions. [2020-07-11 02:29:47,595 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:47,605 INFO L225 Difference]: With dead ends: 293 [2020-07-11 02:29:47,606 INFO L226 Difference]: Without dead ends: 291 [2020-07-11 02:29:47,606 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 [2020-07-11 02:29:47,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-11 02:29:48,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 270. [2020-07-11 02:29:48,219 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:48,219 INFO L82 GeneralOperation]: Start isEquivalent. First operand 291 states. Second operand 270 states. [2020-07-11 02:29:48,219 INFO L74 IsIncluded]: Start isIncluded. First operand 291 states. Second operand 270 states. [2020-07-11 02:29:48,219 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 270 states. [2020-07-11 02:29:48,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:48,229 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-11 02:29:48,229 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-11 02:29:48,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:48,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:48,231 INFO L74 IsIncluded]: Start isIncluded. First operand 270 states. Second operand 291 states. [2020-07-11 02:29:48,231 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 291 states. [2020-07-11 02:29:48,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:48,241 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-11 02:29:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-11 02:29:48,243 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:48,243 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:48,243 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:48,243 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-11 02:29:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 349 transitions. [2020-07-11 02:29:48,252 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 349 transitions. Word has length 110 [2020-07-11 02:29:48,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:48,252 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 349 transitions. [2020-07-11 02:29:48,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-11 02:29:48,253 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 270 states and 349 transitions. [2020-07-11 02:29:48,793 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 349 edges. 349 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:48,794 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 349 transitions. [2020-07-11 02:29:48,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-11 02:29:48,796 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:48,796 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] [2020-07-11 02:29:48,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-11 02:29:48,797 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:48,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:48,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1038471395, now seen corresponding path program 1 times [2020-07-11 02:29:48,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:48,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870588067] [2020-07-11 02:29:48,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:48,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,914 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,914 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-11 02:29:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,925 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,926 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,926 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,927 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,930 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,930 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,931 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,931 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,935 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,935 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,935 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,936 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,940 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,940 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,940 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,941 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,946 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,946 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,946 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,951 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,958 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,958 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,958 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,959 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,964 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,965 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,965 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,966 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,969 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,969 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,970 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,970 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,977 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,977 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,977 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,978 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,985 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,986 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,986 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,986 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,992 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,993 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,993 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,994 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:48,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:48,997 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:48,998 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:48,998 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:48,999 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:49,006 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,006 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,006 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,007 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,007 INFO L263 TraceCheckUtils]: 0: Hoare triple {16331#true} call ULTIMATE.init(); {16331#true} is VALID [2020-07-11 02:29:49,007 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,008 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-11 02:29:49,008 INFO L263 TraceCheckUtils]: 3: Hoare triple {16331#true} call #t~ret10 := main(); {16331#true} is VALID [2020-07-11 02:29:49,008 INFO L280 TraceCheckUtils]: 4: Hoare triple {16331#true} havoc ~len~0; {16331#true} is VALID [2020-07-11 02:29:49,008 INFO L280 TraceCheckUtils]: 5: Hoare triple {16331#true} havoc ~i~0; {16331#true} is VALID [2020-07-11 02:29:49,008 INFO L280 TraceCheckUtils]: 6: Hoare triple {16331#true} havoc ~j~0; {16331#true} is VALID [2020-07-11 02:29:49,008 INFO L280 TraceCheckUtils]: 7: Hoare triple {16331#true} havoc ~bufsize~0; {16331#true} is VALID [2020-07-11 02:29:49,009 INFO L280 TraceCheckUtils]: 8: Hoare triple {16331#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {16331#true} is VALID [2020-07-11 02:29:49,009 INFO L280 TraceCheckUtils]: 9: Hoare triple {16331#true} ~bufsize~0 := #t~nondet0; {16331#true} is VALID [2020-07-11 02:29:49,009 INFO L280 TraceCheckUtils]: 10: Hoare triple {16331#true} havoc #t~nondet0; {16331#true} is VALID [2020-07-11 02:29:49,009 INFO L280 TraceCheckUtils]: 11: Hoare triple {16331#true} assume !(~bufsize~0 < 0); {16331#true} is VALID [2020-07-11 02:29:49,009 INFO L280 TraceCheckUtils]: 12: Hoare triple {16331#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {16331#true} is VALID [2020-07-11 02:29:49,010 INFO L280 TraceCheckUtils]: 13: Hoare triple {16331#true} ~len~0 := #t~nondet1; {16331#true} is VALID [2020-07-11 02:29:49,010 INFO L280 TraceCheckUtils]: 14: Hoare triple {16331#true} havoc #t~nondet1; {16331#true} is VALID [2020-07-11 02:29:49,010 INFO L280 TraceCheckUtils]: 15: Hoare triple {16331#true} ~limit~0 := ~bufsize~0 - 4; {16331#true} is VALID [2020-07-11 02:29:49,011 INFO L280 TraceCheckUtils]: 16: Hoare triple {16331#true} ~i~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,012 INFO L280 TraceCheckUtils]: 17: Hoare triple {16335#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,012 INFO L280 TraceCheckUtils]: 18: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,013 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 [2020-07-11 02:29:49,013 INFO L280 TraceCheckUtils]: 20: Hoare triple {16335#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,014 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 [2020-07-11 02:29:49,014 INFO L280 TraceCheckUtils]: 22: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,014 INFO L280 TraceCheckUtils]: 23: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,014 INFO L280 TraceCheckUtils]: 24: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,015 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,015 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 [2020-07-11 02:29:49,015 INFO L280 TraceCheckUtils]: 27: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,015 INFO L280 TraceCheckUtils]: 28: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,015 INFO L280 TraceCheckUtils]: 29: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,017 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,017 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 [2020-07-11 02:29:49,018 INFO L280 TraceCheckUtils]: 32: Hoare triple {16335#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,018 INFO L280 TraceCheckUtils]: 33: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~nondet2; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,018 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 [2020-07-11 02:29:49,018 INFO L280 TraceCheckUtils]: 35: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,019 INFO L280 TraceCheckUtils]: 36: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,019 INFO L280 TraceCheckUtils]: 37: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,020 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,020 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 [2020-07-11 02:29:49,020 INFO L280 TraceCheckUtils]: 40: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,020 INFO L280 TraceCheckUtils]: 41: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,020 INFO L280 TraceCheckUtils]: 42: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,021 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,021 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 [2020-07-11 02:29:49,021 INFO L280 TraceCheckUtils]: 45: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,021 INFO L280 TraceCheckUtils]: 46: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,022 INFO L280 TraceCheckUtils]: 47: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,022 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,022 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 [2020-07-11 02:29:49,023 INFO L280 TraceCheckUtils]: 50: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,023 INFO L280 TraceCheckUtils]: 51: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,023 INFO L280 TraceCheckUtils]: 52: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,025 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,025 INFO L280 TraceCheckUtils]: 54: Hoare triple {16335#(<= 0 main_~i~0)} #t~post3 := ~j~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,026 INFO L280 TraceCheckUtils]: 55: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,026 INFO L280 TraceCheckUtils]: 56: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-11 02:29:49,027 INFO L280 TraceCheckUtils]: 57: Hoare triple {16335#(<= 0 main_~i~0)} #t~post4 := ~i~0; {16360#(<= 0 |main_#t~post4|)} is VALID [2020-07-11 02:29:49,027 INFO L280 TraceCheckUtils]: 58: Hoare triple {16360#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,028 INFO L280 TraceCheckUtils]: 59: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,028 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 [2020-07-11 02:29:49,028 INFO L280 TraceCheckUtils]: 61: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,028 INFO L280 TraceCheckUtils]: 62: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,029 INFO L280 TraceCheckUtils]: 63: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,029 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,029 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 [2020-07-11 02:29:49,030 INFO L280 TraceCheckUtils]: 66: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,030 INFO L280 TraceCheckUtils]: 67: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,030 INFO L280 TraceCheckUtils]: 68: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,031 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,031 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 [2020-07-11 02:29:49,031 INFO L280 TraceCheckUtils]: 71: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,031 INFO L280 TraceCheckUtils]: 72: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,031 INFO L280 TraceCheckUtils]: 73: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,032 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,032 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 [2020-07-11 02:29:49,032 INFO L280 TraceCheckUtils]: 76: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,032 INFO L280 TraceCheckUtils]: 77: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,033 INFO L280 TraceCheckUtils]: 78: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,033 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,034 INFO L280 TraceCheckUtils]: 80: Hoare triple {16361#(<= 1 main_~i~0)} #t~post5 := ~j~0; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,034 INFO L280 TraceCheckUtils]: 81: Hoare triple {16361#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,035 INFO L280 TraceCheckUtils]: 82: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-11 02:29:49,035 INFO L280 TraceCheckUtils]: 83: Hoare triple {16361#(<= 1 main_~i~0)} #t~post6 := ~i~0; {16378#(<= 1 |main_#t~post6|)} is VALID [2020-07-11 02:29:49,036 INFO L280 TraceCheckUtils]: 84: Hoare triple {16378#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,037 INFO L280 TraceCheckUtils]: 85: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,037 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 [2020-07-11 02:29:49,037 INFO L280 TraceCheckUtils]: 87: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,037 INFO L280 TraceCheckUtils]: 88: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,037 INFO L280 TraceCheckUtils]: 89: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,038 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,038 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 [2020-07-11 02:29:49,038 INFO L280 TraceCheckUtils]: 92: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,039 INFO L280 TraceCheckUtils]: 93: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,039 INFO L280 TraceCheckUtils]: 94: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,039 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,040 INFO L280 TraceCheckUtils]: 96: Hoare triple {16379#(<= 2 main_~i~0)} #t~post7 := ~j~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,040 INFO L280 TraceCheckUtils]: 97: Hoare triple {16379#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,041 INFO L280 TraceCheckUtils]: 98: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,041 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 [2020-07-11 02:29:49,042 INFO L280 TraceCheckUtils]: 100: Hoare triple {16379#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,042 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 [2020-07-11 02:29:49,042 INFO L280 TraceCheckUtils]: 102: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-11 02:29:49,043 INFO L280 TraceCheckUtils]: 103: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-11 02:29:49,043 INFO L280 TraceCheckUtils]: 104: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-11 02:29:49,043 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-11 02:29:49,044 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 [2020-07-11 02:29:49,045 INFO L280 TraceCheckUtils]: 107: Hoare triple {16392#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {16393#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:49,045 INFO L280 TraceCheckUtils]: 108: Hoare triple {16393#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {16332#false} is VALID [2020-07-11 02:29:49,045 INFO L280 TraceCheckUtils]: 109: Hoare triple {16332#false} assume !false; {16332#false} is VALID [2020-07-11 02:29:49,054 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2020-07-11 02:29:49,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870588067] [2020-07-11 02:29:49,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:49,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-11 02:29:49,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202202366] [2020-07-11 02:29:49,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-11 02:29:49,058 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:49,059 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-11 02:29:49,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:49,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-11 02:29:49,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:49,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-11 02:29:49,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-11 02:29:49,154 INFO L87 Difference]: Start difference. First operand 270 states and 349 transitions. Second operand 9 states. [2020-07-11 02:29:51,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:51,234 INFO L93 Difference]: Finished difference Result 372 states and 494 transitions. [2020-07-11 02:29:51,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-11 02:29:51,234 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-11 02:29:51,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:51,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-11 02:29:51,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-11 02:29:51,241 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 194 transitions. [2020-07-11 02:29:51,518 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 194 edges. 194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:51,531 INFO L225 Difference]: With dead ends: 372 [2020-07-11 02:29:51,531 INFO L226 Difference]: Without dead ends: 368 [2020-07-11 02:29:51,532 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 [2020-07-11 02:29:51,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-11 02:29:52,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 345. [2020-07-11 02:29:52,363 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:52,364 INFO L82 GeneralOperation]: Start isEquivalent. First operand 368 states. Second operand 345 states. [2020-07-11 02:29:52,364 INFO L74 IsIncluded]: Start isIncluded. First operand 368 states. Second operand 345 states. [2020-07-11 02:29:52,364 INFO L87 Difference]: Start difference. First operand 368 states. Second operand 345 states. [2020-07-11 02:29:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:52,377 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-11 02:29:52,378 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-11 02:29:52,379 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:52,380 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:52,380 INFO L74 IsIncluded]: Start isIncluded. First operand 345 states. Second operand 368 states. [2020-07-11 02:29:52,380 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 368 states. [2020-07-11 02:29:52,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:52,393 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-11 02:29:52,394 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-11 02:29:52,395 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:52,396 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:52,396 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:52,396 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-11 02:29:52,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 458 transitions. [2020-07-11 02:29:52,409 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 458 transitions. Word has length 110 [2020-07-11 02:29:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:52,409 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 458 transitions. [2020-07-11 02:29:52,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-11 02:29:52,410 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 345 states and 458 transitions. [2020-07-11 02:29:53,149 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 458 edges. 458 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:53,150 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 458 transitions. [2020-07-11 02:29:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-11 02:29:53,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:53,152 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] [2020-07-11 02:29:53,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-11 02:29:53,152 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:53,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:53,152 INFO L82 PathProgramCache]: Analyzing trace with hash 1539222205, now seen corresponding path program 1 times [2020-07-11 02:29:53,152 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:53,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770138600] [2020-07-11 02:29:53,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:53,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,262 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,262 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-11 02:29:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,268 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,268 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,269 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,269 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,273 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,273 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,273 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,274 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,278 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,279 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,279 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,280 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,285 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,285 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,285 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,286 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,291 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,291 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,292 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,297 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,297 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,297 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,298 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,303 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,304 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,304 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,305 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,310 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,310 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,310 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,311 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,316 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,316 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,317 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,318 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,322 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,322 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,323 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,324 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,329 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,329 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,329 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,330 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,335 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,335 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,336 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,337 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,341 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,342 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,342 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,343 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,348 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,348 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,348 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,349 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:53,364 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,365 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,365 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,366 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,367 INFO L263 TraceCheckUtils]: 0: Hoare triple {18578#true} call ULTIMATE.init(); {18578#true} is VALID [2020-07-11 02:29:53,367 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,368 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-11 02:29:53,368 INFO L263 TraceCheckUtils]: 3: Hoare triple {18578#true} call #t~ret10 := main(); {18578#true} is VALID [2020-07-11 02:29:53,368 INFO L280 TraceCheckUtils]: 4: Hoare triple {18578#true} havoc ~len~0; {18578#true} is VALID [2020-07-11 02:29:53,369 INFO L280 TraceCheckUtils]: 5: Hoare triple {18578#true} havoc ~i~0; {18578#true} is VALID [2020-07-11 02:29:53,369 INFO L280 TraceCheckUtils]: 6: Hoare triple {18578#true} havoc ~j~0; {18578#true} is VALID [2020-07-11 02:29:53,369 INFO L280 TraceCheckUtils]: 7: Hoare triple {18578#true} havoc ~bufsize~0; {18578#true} is VALID [2020-07-11 02:29:53,370 INFO L280 TraceCheckUtils]: 8: Hoare triple {18578#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18578#true} is VALID [2020-07-11 02:29:53,370 INFO L280 TraceCheckUtils]: 9: Hoare triple {18578#true} ~bufsize~0 := #t~nondet0; {18578#true} is VALID [2020-07-11 02:29:53,370 INFO L280 TraceCheckUtils]: 10: Hoare triple {18578#true} havoc #t~nondet0; {18578#true} is VALID [2020-07-11 02:29:53,371 INFO L280 TraceCheckUtils]: 11: Hoare triple {18578#true} assume !(~bufsize~0 < 0); {18578#true} is VALID [2020-07-11 02:29:53,371 INFO L280 TraceCheckUtils]: 12: Hoare triple {18578#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18578#true} is VALID [2020-07-11 02:29:53,371 INFO L280 TraceCheckUtils]: 13: Hoare triple {18578#true} ~len~0 := #t~nondet1; {18578#true} is VALID [2020-07-11 02:29:53,371 INFO L280 TraceCheckUtils]: 14: Hoare triple {18578#true} havoc #t~nondet1; {18578#true} is VALID [2020-07-11 02:29:53,372 INFO L280 TraceCheckUtils]: 15: Hoare triple {18578#true} ~limit~0 := ~bufsize~0 - 4; {18578#true} is VALID [2020-07-11 02:29:53,372 INFO L280 TraceCheckUtils]: 16: Hoare triple {18578#true} ~i~0 := 0; {18578#true} is VALID [2020-07-11 02:29:53,372 INFO L280 TraceCheckUtils]: 17: Hoare triple {18578#true} assume !!(~i~0 < ~len~0); {18578#true} is VALID [2020-07-11 02:29:53,374 INFO L280 TraceCheckUtils]: 18: Hoare triple {18578#true} ~j~0 := 0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,375 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 [2020-07-11 02:29:53,375 INFO L280 TraceCheckUtils]: 20: Hoare triple {18582#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,376 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 [2020-07-11 02:29:53,376 INFO L280 TraceCheckUtils]: 22: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,376 INFO L280 TraceCheckUtils]: 23: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,377 INFO L280 TraceCheckUtils]: 24: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,378 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,378 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 [2020-07-11 02:29:53,379 INFO L280 TraceCheckUtils]: 27: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,379 INFO L280 TraceCheckUtils]: 28: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,379 INFO L280 TraceCheckUtils]: 29: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,380 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,381 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 [2020-07-11 02:29:53,382 INFO L280 TraceCheckUtils]: 32: Hoare triple {18582#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,382 INFO L280 TraceCheckUtils]: 33: Hoare triple {18582#(<= 0 main_~j~0)} havoc #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,383 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 [2020-07-11 02:29:53,383 INFO L280 TraceCheckUtils]: 35: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,383 INFO L280 TraceCheckUtils]: 36: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,384 INFO L280 TraceCheckUtils]: 37: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,385 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,385 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 [2020-07-11 02:29:53,385 INFO L280 TraceCheckUtils]: 40: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,386 INFO L280 TraceCheckUtils]: 41: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,386 INFO L280 TraceCheckUtils]: 42: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,387 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,387 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 [2020-07-11 02:29:53,388 INFO L280 TraceCheckUtils]: 45: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,388 INFO L280 TraceCheckUtils]: 46: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,388 INFO L280 TraceCheckUtils]: 47: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,390 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,390 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 [2020-07-11 02:29:53,390 INFO L280 TraceCheckUtils]: 50: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,391 INFO L280 TraceCheckUtils]: 51: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,391 INFO L280 TraceCheckUtils]: 52: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,392 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:53,393 INFO L280 TraceCheckUtils]: 54: Hoare triple {18582#(<= 0 main_~j~0)} #t~post8 := ~j~0; {18607#(<= 0 |main_#t~post8|)} is VALID [2020-07-11 02:29:53,394 INFO L280 TraceCheckUtils]: 55: Hoare triple {18607#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,395 INFO L280 TraceCheckUtils]: 56: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,396 INFO L280 TraceCheckUtils]: 57: Hoare triple {18608#(<= 1 main_~j~0)} #t~post9 := ~i~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,397 INFO L280 TraceCheckUtils]: 58: Hoare triple {18608#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,398 INFO L280 TraceCheckUtils]: 59: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,399 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 [2020-07-11 02:29:53,400 INFO L280 TraceCheckUtils]: 61: Hoare triple {18608#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,400 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 [2020-07-11 02:29:53,400 INFO L280 TraceCheckUtils]: 63: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,401 INFO L280 TraceCheckUtils]: 64: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,401 INFO L280 TraceCheckUtils]: 65: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,402 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,402 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 [2020-07-11 02:29:53,403 INFO L280 TraceCheckUtils]: 68: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,403 INFO L280 TraceCheckUtils]: 69: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,403 INFO L280 TraceCheckUtils]: 70: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,404 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,405 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 [2020-07-11 02:29:53,406 INFO L280 TraceCheckUtils]: 73: Hoare triple {18608#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,407 INFO L280 TraceCheckUtils]: 74: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~nondet2; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,407 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 [2020-07-11 02:29:53,407 INFO L280 TraceCheckUtils]: 76: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,408 INFO L280 TraceCheckUtils]: 77: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,408 INFO L280 TraceCheckUtils]: 78: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,409 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,409 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 [2020-07-11 02:29:53,410 INFO L280 TraceCheckUtils]: 81: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,410 INFO L280 TraceCheckUtils]: 82: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,410 INFO L280 TraceCheckUtils]: 83: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,412 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,412 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 [2020-07-11 02:29:53,412 INFO L280 TraceCheckUtils]: 86: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,413 INFO L280 TraceCheckUtils]: 87: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,413 INFO L280 TraceCheckUtils]: 88: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,414 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,414 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 [2020-07-11 02:29:53,415 INFO L280 TraceCheckUtils]: 91: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,415 INFO L280 TraceCheckUtils]: 92: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,415 INFO L280 TraceCheckUtils]: 93: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,417 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:53,418 INFO L280 TraceCheckUtils]: 95: Hoare triple {18608#(<= 1 main_~j~0)} #t~post3 := ~j~0; {18633#(<= 1 |main_#t~post3|)} is VALID [2020-07-11 02:29:53,419 INFO L280 TraceCheckUtils]: 96: Hoare triple {18633#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,420 INFO L280 TraceCheckUtils]: 97: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,421 INFO L280 TraceCheckUtils]: 98: Hoare triple {18634#(<= 2 main_~j~0)} #t~post4 := ~i~0; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,421 INFO L280 TraceCheckUtils]: 99: Hoare triple {18634#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,422 INFO L280 TraceCheckUtils]: 100: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,422 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 [2020-07-11 02:29:53,423 INFO L280 TraceCheckUtils]: 102: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,423 INFO L280 TraceCheckUtils]: 103: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,423 INFO L280 TraceCheckUtils]: 104: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,424 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,425 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 [2020-07-11 02:29:53,425 INFO L280 TraceCheckUtils]: 107: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,425 INFO L280 TraceCheckUtils]: 108: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,426 INFO L280 TraceCheckUtils]: 109: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,427 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,427 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 [2020-07-11 02:29:53,427 INFO L280 TraceCheckUtils]: 112: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-11 02:29:53,427 INFO L280 TraceCheckUtils]: 113: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-11 02:29:53,428 INFO L280 TraceCheckUtils]: 114: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-11 02:29:53,429 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:53,430 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 [2020-07-11 02:29:53,431 INFO L280 TraceCheckUtils]: 117: Hoare triple {18647#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {18648#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:53,432 INFO L280 TraceCheckUtils]: 118: Hoare triple {18648#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {18579#false} is VALID [2020-07-11 02:29:53,432 INFO L280 TraceCheckUtils]: 119: Hoare triple {18579#false} assume !false; {18579#false} is VALID [2020-07-11 02:29:53,453 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-11 02:29:53,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770138600] [2020-07-11 02:29:53,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:53,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-11 02:29:53,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698421001] [2020-07-11 02:29:53,455 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-11 02:29:53,456 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:53,456 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-11 02:29:53,584 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:53,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-11 02:29:53,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:53,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-11 02:29:53,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-11 02:29:53,586 INFO L87 Difference]: Start difference. First operand 345 states and 458 transitions. Second operand 9 states. [2020-07-11 02:29:56,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:56,418 INFO L93 Difference]: Finished difference Result 379 states and 496 transitions. [2020-07-11 02:29:56,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-11 02:29:56,418 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-11 02:29:56,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:29:56,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:56,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-11 02:29:56,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-11 02:29:56,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-11 02:29:56,427 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 179 transitions. [2020-07-11 02:29:56,746 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:56,767 INFO L225 Difference]: With dead ends: 379 [2020-07-11 02:29:56,767 INFO L226 Difference]: Without dead ends: 377 [2020-07-11 02:29:56,769 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 [2020-07-11 02:29:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-07-11 02:29:58,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 359. [2020-07-11 02:29:58,191 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:29:58,191 INFO L82 GeneralOperation]: Start isEquivalent. First operand 377 states. Second operand 359 states. [2020-07-11 02:29:58,191 INFO L74 IsIncluded]: Start isIncluded. First operand 377 states. Second operand 359 states. [2020-07-11 02:29:58,192 INFO L87 Difference]: Start difference. First operand 377 states. Second operand 359 states. [2020-07-11 02:29:58,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:58,215 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-11 02:29:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-11 02:29:58,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:58,219 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:58,220 INFO L74 IsIncluded]: Start isIncluded. First operand 359 states. Second operand 377 states. [2020-07-11 02:29:58,220 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 377 states. [2020-07-11 02:29:58,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:29:58,249 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-11 02:29:58,249 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-11 02:29:58,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:29:58,253 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:29:58,253 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:29:58,253 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:29:58,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-07-11 02:29:58,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 475 transitions. [2020-07-11 02:29:58,275 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 475 transitions. Word has length 120 [2020-07-11 02:29:58,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:29:58,276 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 475 transitions. [2020-07-11 02:29:58,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-11 02:29:58,276 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 359 states and 475 transitions. [2020-07-11 02:29:59,272 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 475 edges. 475 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:59,272 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 475 transitions. [2020-07-11 02:29:59,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-11 02:29:59,274 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:29:59,274 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] [2020-07-11 02:29:59,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-11 02:29:59,274 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:29:59,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:29:59,275 INFO L82 PathProgramCache]: Analyzing trace with hash 871752502, now seen corresponding path program 1 times [2020-07-11 02:29:59,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:29:59,276 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510172947] [2020-07-11 02:29:59,276 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:29:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,415 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,416 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-11 02:29:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,421 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,421 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,421 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,422 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,426 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,427 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,427 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,428 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,431 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,432 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,432 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,433 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,436 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,437 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,437 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,438 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,442 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,442 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,442 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,443 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,447 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,447 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,447 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,448 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,452 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,452 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,452 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,453 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,456 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,457 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,457 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,458 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,462 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,462 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,462 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,463 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,467 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,467 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,467 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,468 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,472 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,472 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,472 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,473 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,476 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,477 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,477 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,478 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,481 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,482 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,482 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,483 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,486 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,487 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,487 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,488 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:29:59,492 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,492 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,492 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,493 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,493 INFO L263 TraceCheckUtils]: 0: Hoare triple {20891#true} call ULTIMATE.init(); {20891#true} is VALID [2020-07-11 02:29:59,493 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,494 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-11 02:29:59,494 INFO L263 TraceCheckUtils]: 3: Hoare triple {20891#true} call #t~ret10 := main(); {20891#true} is VALID [2020-07-11 02:29:59,494 INFO L280 TraceCheckUtils]: 4: Hoare triple {20891#true} havoc ~len~0; {20891#true} is VALID [2020-07-11 02:29:59,494 INFO L280 TraceCheckUtils]: 5: Hoare triple {20891#true} havoc ~i~0; {20891#true} is VALID [2020-07-11 02:29:59,494 INFO L280 TraceCheckUtils]: 6: Hoare triple {20891#true} havoc ~j~0; {20891#true} is VALID [2020-07-11 02:29:59,494 INFO L280 TraceCheckUtils]: 7: Hoare triple {20891#true} havoc ~bufsize~0; {20891#true} is VALID [2020-07-11 02:29:59,495 INFO L280 TraceCheckUtils]: 8: Hoare triple {20891#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {20891#true} is VALID [2020-07-11 02:29:59,495 INFO L280 TraceCheckUtils]: 9: Hoare triple {20891#true} ~bufsize~0 := #t~nondet0; {20891#true} is VALID [2020-07-11 02:29:59,495 INFO L280 TraceCheckUtils]: 10: Hoare triple {20891#true} havoc #t~nondet0; {20891#true} is VALID [2020-07-11 02:29:59,495 INFO L280 TraceCheckUtils]: 11: Hoare triple {20891#true} assume !(~bufsize~0 < 0); {20891#true} is VALID [2020-07-11 02:29:59,495 INFO L280 TraceCheckUtils]: 12: Hoare triple {20891#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {20891#true} is VALID [2020-07-11 02:29:59,496 INFO L280 TraceCheckUtils]: 13: Hoare triple {20891#true} ~len~0 := #t~nondet1; {20891#true} is VALID [2020-07-11 02:29:59,496 INFO L280 TraceCheckUtils]: 14: Hoare triple {20891#true} havoc #t~nondet1; {20891#true} is VALID [2020-07-11 02:29:59,496 INFO L280 TraceCheckUtils]: 15: Hoare triple {20891#true} ~limit~0 := ~bufsize~0 - 4; {20891#true} is VALID [2020-07-11 02:29:59,496 INFO L280 TraceCheckUtils]: 16: Hoare triple {20891#true} ~i~0 := 0; {20891#true} is VALID [2020-07-11 02:29:59,496 INFO L280 TraceCheckUtils]: 17: Hoare triple {20891#true} assume !!(~i~0 < ~len~0); {20891#true} is VALID [2020-07-11 02:29:59,497 INFO L280 TraceCheckUtils]: 18: Hoare triple {20891#true} ~j~0 := 0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,498 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 [2020-07-11 02:29:59,498 INFO L280 TraceCheckUtils]: 20: Hoare triple {20895#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,498 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 [2020-07-11 02:29:59,499 INFO L280 TraceCheckUtils]: 22: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,499 INFO L280 TraceCheckUtils]: 23: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,499 INFO L280 TraceCheckUtils]: 24: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,500 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,500 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 [2020-07-11 02:29:59,500 INFO L280 TraceCheckUtils]: 27: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,500 INFO L280 TraceCheckUtils]: 28: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,500 INFO L280 TraceCheckUtils]: 29: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,501 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,502 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 [2020-07-11 02:29:59,502 INFO L280 TraceCheckUtils]: 32: Hoare triple {20895#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,503 INFO L280 TraceCheckUtils]: 33: Hoare triple {20895#(<= 0 main_~j~0)} havoc #t~nondet2; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,503 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 [2020-07-11 02:29:59,503 INFO L280 TraceCheckUtils]: 35: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,504 INFO L280 TraceCheckUtils]: 36: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,504 INFO L280 TraceCheckUtils]: 37: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,504 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,505 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 [2020-07-11 02:29:59,505 INFO L280 TraceCheckUtils]: 40: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,505 INFO L280 TraceCheckUtils]: 41: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,505 INFO L280 TraceCheckUtils]: 42: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,506 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,506 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 [2020-07-11 02:29:59,506 INFO L280 TraceCheckUtils]: 45: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,507 INFO L280 TraceCheckUtils]: 46: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,507 INFO L280 TraceCheckUtils]: 47: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,508 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,508 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 [2020-07-11 02:29:59,508 INFO L280 TraceCheckUtils]: 50: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,508 INFO L280 TraceCheckUtils]: 51: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,508 INFO L280 TraceCheckUtils]: 52: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,509 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-11 02:29:59,510 INFO L280 TraceCheckUtils]: 54: Hoare triple {20895#(<= 0 main_~j~0)} #t~post3 := ~j~0; {20920#(<= 0 |main_#t~post3|)} is VALID [2020-07-11 02:29:59,510 INFO L280 TraceCheckUtils]: 55: Hoare triple {20920#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,511 INFO L280 TraceCheckUtils]: 56: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,512 INFO L280 TraceCheckUtils]: 57: Hoare triple {20921#(<= 1 main_~j~0)} #t~post4 := ~i~0; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,512 INFO L280 TraceCheckUtils]: 58: Hoare triple {20921#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,513 INFO L280 TraceCheckUtils]: 59: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,513 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 [2020-07-11 02:29:59,513 INFO L280 TraceCheckUtils]: 61: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,513 INFO L280 TraceCheckUtils]: 62: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,514 INFO L280 TraceCheckUtils]: 63: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,514 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,515 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 [2020-07-11 02:29:59,515 INFO L280 TraceCheckUtils]: 66: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,515 INFO L280 TraceCheckUtils]: 67: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,515 INFO L280 TraceCheckUtils]: 68: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,516 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,516 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 [2020-07-11 02:29:59,516 INFO L280 TraceCheckUtils]: 71: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,516 INFO L280 TraceCheckUtils]: 72: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,517 INFO L280 TraceCheckUtils]: 73: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,517 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,518 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 [2020-07-11 02:29:59,518 INFO L280 TraceCheckUtils]: 76: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,518 INFO L280 TraceCheckUtils]: 77: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,518 INFO L280 TraceCheckUtils]: 78: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,519 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-11 02:29:59,520 INFO L280 TraceCheckUtils]: 80: Hoare triple {20921#(<= 1 main_~j~0)} #t~post5 := ~j~0; {20938#(<= 1 |main_#t~post5|)} is VALID [2020-07-11 02:29:59,520 INFO L280 TraceCheckUtils]: 81: Hoare triple {20938#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,521 INFO L280 TraceCheckUtils]: 82: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,522 INFO L280 TraceCheckUtils]: 83: Hoare triple {20939#(<= 2 main_~j~0)} #t~post6 := ~i~0; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,522 INFO L280 TraceCheckUtils]: 84: Hoare triple {20939#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,523 INFO L280 TraceCheckUtils]: 85: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,523 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 [2020-07-11 02:29:59,523 INFO L280 TraceCheckUtils]: 87: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,523 INFO L280 TraceCheckUtils]: 88: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,523 INFO L280 TraceCheckUtils]: 89: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,524 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,524 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 [2020-07-11 02:29:59,524 INFO L280 TraceCheckUtils]: 92: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,525 INFO L280 TraceCheckUtils]: 93: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,525 INFO L280 TraceCheckUtils]: 94: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,525 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-11 02:29:59,526 INFO L280 TraceCheckUtils]: 96: Hoare triple {20939#(<= 2 main_~j~0)} #t~post7 := ~j~0; {20948#(<= 2 |main_#t~post7|)} is VALID [2020-07-11 02:29:59,527 INFO L280 TraceCheckUtils]: 97: Hoare triple {20948#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,527 INFO L280 TraceCheckUtils]: 98: Hoare triple {20949#(<= 3 main_~j~0)} havoc #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,528 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 [2020-07-11 02:29:59,529 INFO L280 TraceCheckUtils]: 100: Hoare triple {20949#(<= 3 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,529 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 [2020-07-11 02:29:59,529 INFO L280 TraceCheckUtils]: 102: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,529 INFO L280 TraceCheckUtils]: 103: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,529 INFO L280 TraceCheckUtils]: 104: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,530 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,530 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 [2020-07-11 02:29:59,530 INFO L280 TraceCheckUtils]: 107: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,531 INFO L280 TraceCheckUtils]: 108: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,531 INFO L280 TraceCheckUtils]: 109: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,532 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,532 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 [2020-07-11 02:29:59,532 INFO L280 TraceCheckUtils]: 112: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-11 02:29:59,532 INFO L280 TraceCheckUtils]: 113: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-11 02:29:59,532 INFO L280 TraceCheckUtils]: 114: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-11 02:29:59,533 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-11 02:29:59,534 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 [2020-07-11 02:29:59,535 INFO L280 TraceCheckUtils]: 117: Hoare triple {20962#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {20963#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:29:59,535 INFO L280 TraceCheckUtils]: 118: Hoare triple {20963#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {20892#false} is VALID [2020-07-11 02:29:59,535 INFO L280 TraceCheckUtils]: 119: Hoare triple {20892#false} assume !false; {20892#false} is VALID [2020-07-11 02:29:59,546 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2020-07-11 02:29:59,547 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510172947] [2020-07-11 02:29:59,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:29:59,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-11 02:29:59,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759122794] [2020-07-11 02:29:59,550 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-11 02:29:59,550 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:29:59,551 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-11 02:29:59,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:29:59,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-11 02:29:59,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:29:59,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-11 02:29:59,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-11 02:29:59,643 INFO L87 Difference]: Start difference. First operand 359 states and 475 transitions. Second operand 11 states. [2020-07-11 02:30:02,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:02,519 INFO L93 Difference]: Finished difference Result 424 states and 562 transitions. [2020-07-11 02:30:02,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-11 02:30:02,519 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-11 02:30:02,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:30:02,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-11 02:30:02,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:02,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-11 02:30:02,525 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 186 transitions. [2020-07-11 02:30:02,768 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:02,782 INFO L225 Difference]: With dead ends: 424 [2020-07-11 02:30:02,782 INFO L226 Difference]: Without dead ends: 418 [2020-07-11 02:30:02,783 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 [2020-07-11 02:30:02,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-11 02:30:03,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 398. [2020-07-11 02:30:03,897 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:30:03,898 INFO L82 GeneralOperation]: Start isEquivalent. First operand 418 states. Second operand 398 states. [2020-07-11 02:30:03,898 INFO L74 IsIncluded]: Start isIncluded. First operand 418 states. Second operand 398 states. [2020-07-11 02:30:03,898 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 398 states. [2020-07-11 02:30:03,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:03,914 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-11 02:30:03,914 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-11 02:30:03,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:03,916 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:03,917 INFO L74 IsIncluded]: Start isIncluded. First operand 398 states. Second operand 418 states. [2020-07-11 02:30:03,917 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 418 states. [2020-07-11 02:30:03,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:03,932 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-11 02:30:03,932 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-11 02:30:03,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:03,934 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:03,934 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:30:03,934 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:30:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-11 02:30:03,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 529 transitions. [2020-07-11 02:30:03,949 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 529 transitions. Word has length 120 [2020-07-11 02:30:03,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:30:03,950 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 529 transitions. [2020-07-11 02:30:03,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-11 02:30:03,950 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 398 states and 529 transitions. [2020-07-11 02:30:04,946 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 529 edges. 529 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:04,946 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 529 transitions. [2020-07-11 02:30:04,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-11 02:30:04,948 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:30:04,948 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] [2020-07-11 02:30:04,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-11 02:30:04,949 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:30:04,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:30:04,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1668448602, now seen corresponding path program 1 times [2020-07-11 02:30:04,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:30:04,949 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629709063] [2020-07-11 02:30:04,950 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:30:04,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,108 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,108 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-11 02:30:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,112 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,112 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,113 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,113 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,117 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,118 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,118 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,119 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,122 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,122 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,122 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,123 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,127 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,127 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,127 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,128 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,132 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,132 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,132 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,133 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,137 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,138 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,138 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,143 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,143 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,143 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,144 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,150 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,150 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,150 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,151 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,155 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,156 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,156 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,157 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,160 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,161 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,161 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,163 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,168 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,168 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,169 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,170 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,175 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,176 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,176 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,177 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,182 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,183 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,183 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,184 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,192 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,192 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,192 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,194 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,200 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,200 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,201 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,202 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,207 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,207 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,208 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,209 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:05,213 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,214 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,214 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,215 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:05,215 INFO L263 TraceCheckUtils]: 0: Hoare triple {23462#true} call ULTIMATE.init(); {23462#true} is VALID [2020-07-11 02:30:05,216 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,216 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-11 02:30:05,216 INFO L263 TraceCheckUtils]: 3: Hoare triple {23462#true} call #t~ret10 := main(); {23462#true} is VALID [2020-07-11 02:30:05,216 INFO L280 TraceCheckUtils]: 4: Hoare triple {23462#true} havoc ~len~0; {23462#true} is VALID [2020-07-11 02:30:05,217 INFO L280 TraceCheckUtils]: 5: Hoare triple {23462#true} havoc ~i~0; {23462#true} is VALID [2020-07-11 02:30:05,217 INFO L280 TraceCheckUtils]: 6: Hoare triple {23462#true} havoc ~j~0; {23462#true} is VALID [2020-07-11 02:30:05,217 INFO L280 TraceCheckUtils]: 7: Hoare triple {23462#true} havoc ~bufsize~0; {23462#true} is VALID [2020-07-11 02:30:05,217 INFO L280 TraceCheckUtils]: 8: Hoare triple {23462#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {23462#true} is VALID [2020-07-11 02:30:05,218 INFO L280 TraceCheckUtils]: 9: Hoare triple {23462#true} ~bufsize~0 := #t~nondet0; {23462#true} is VALID [2020-07-11 02:30:05,218 INFO L280 TraceCheckUtils]: 10: Hoare triple {23462#true} havoc #t~nondet0; {23462#true} is VALID [2020-07-11 02:30:05,218 INFO L280 TraceCheckUtils]: 11: Hoare triple {23462#true} assume !(~bufsize~0 < 0); {23462#true} is VALID [2020-07-11 02:30:05,218 INFO L280 TraceCheckUtils]: 12: Hoare triple {23462#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {23462#true} is VALID [2020-07-11 02:30:05,219 INFO L280 TraceCheckUtils]: 13: Hoare triple {23462#true} ~len~0 := #t~nondet1; {23462#true} is VALID [2020-07-11 02:30:05,219 INFO L280 TraceCheckUtils]: 14: Hoare triple {23462#true} havoc #t~nondet1; {23462#true} is VALID [2020-07-11 02:30:05,219 INFO L280 TraceCheckUtils]: 15: Hoare triple {23462#true} ~limit~0 := ~bufsize~0 - 4; {23462#true} is VALID [2020-07-11 02:30:05,220 INFO L280 TraceCheckUtils]: 16: Hoare triple {23462#true} ~i~0 := 0; {23462#true} is VALID [2020-07-11 02:30:05,220 INFO L280 TraceCheckUtils]: 17: Hoare triple {23462#true} assume !!(~i~0 < ~len~0); {23462#true} is VALID [2020-07-11 02:30:05,221 INFO L280 TraceCheckUtils]: 18: Hoare triple {23462#true} ~j~0 := 0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,222 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 [2020-07-11 02:30:05,222 INFO L280 TraceCheckUtils]: 20: Hoare triple {23466#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,223 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 [2020-07-11 02:30:05,223 INFO L280 TraceCheckUtils]: 22: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,223 INFO L280 TraceCheckUtils]: 23: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,224 INFO L280 TraceCheckUtils]: 24: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,225 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,225 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 [2020-07-11 02:30:05,225 INFO L280 TraceCheckUtils]: 27: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,226 INFO L280 TraceCheckUtils]: 28: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,226 INFO L280 TraceCheckUtils]: 29: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,227 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,228 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 [2020-07-11 02:30:05,229 INFO L280 TraceCheckUtils]: 32: Hoare triple {23466#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,230 INFO L280 TraceCheckUtils]: 33: Hoare triple {23466#(<= 0 main_~j~0)} havoc #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,230 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 [2020-07-11 02:30:05,230 INFO L280 TraceCheckUtils]: 35: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,231 INFO L280 TraceCheckUtils]: 36: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,231 INFO L280 TraceCheckUtils]: 37: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,232 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,233 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 [2020-07-11 02:30:05,233 INFO L280 TraceCheckUtils]: 40: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,233 INFO L280 TraceCheckUtils]: 41: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,233 INFO L280 TraceCheckUtils]: 42: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,235 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,235 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 [2020-07-11 02:30:05,235 INFO L280 TraceCheckUtils]: 45: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,236 INFO L280 TraceCheckUtils]: 46: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,236 INFO L280 TraceCheckUtils]: 47: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,237 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,237 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 [2020-07-11 02:30:05,238 INFO L280 TraceCheckUtils]: 50: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,238 INFO L280 TraceCheckUtils]: 51: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,238 INFO L280 TraceCheckUtils]: 52: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,239 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:05,240 INFO L280 TraceCheckUtils]: 54: Hoare triple {23466#(<= 0 main_~j~0)} #t~post8 := ~j~0; {23491#(<= 0 |main_#t~post8|)} is VALID [2020-07-11 02:30:05,241 INFO L280 TraceCheckUtils]: 55: Hoare triple {23491#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,242 INFO L280 TraceCheckUtils]: 56: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,243 INFO L280 TraceCheckUtils]: 57: Hoare triple {23492#(<= 1 main_~j~0)} #t~post9 := ~i~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,244 INFO L280 TraceCheckUtils]: 58: Hoare triple {23492#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,245 INFO L280 TraceCheckUtils]: 59: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,246 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 [2020-07-11 02:30:05,247 INFO L280 TraceCheckUtils]: 61: Hoare triple {23492#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,247 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 [2020-07-11 02:30:05,247 INFO L280 TraceCheckUtils]: 63: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,248 INFO L280 TraceCheckUtils]: 64: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,248 INFO L280 TraceCheckUtils]: 65: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,249 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,249 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 [2020-07-11 02:30:05,250 INFO L280 TraceCheckUtils]: 68: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,250 INFO L280 TraceCheckUtils]: 69: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,250 INFO L280 TraceCheckUtils]: 70: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,251 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,252 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 [2020-07-11 02:30:05,252 INFO L280 TraceCheckUtils]: 73: Hoare triple {23492#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,253 INFO L280 TraceCheckUtils]: 74: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~nondet2; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,253 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 [2020-07-11 02:30:05,254 INFO L280 TraceCheckUtils]: 76: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,254 INFO L280 TraceCheckUtils]: 77: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,254 INFO L280 TraceCheckUtils]: 78: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,255 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,255 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 [2020-07-11 02:30:05,255 INFO L280 TraceCheckUtils]: 81: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,256 INFO L280 TraceCheckUtils]: 82: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,256 INFO L280 TraceCheckUtils]: 83: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,257 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,257 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 [2020-07-11 02:30:05,257 INFO L280 TraceCheckUtils]: 86: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,257 INFO L280 TraceCheckUtils]: 87: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,257 INFO L280 TraceCheckUtils]: 88: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,258 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,259 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 [2020-07-11 02:30:05,259 INFO L280 TraceCheckUtils]: 91: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,259 INFO L280 TraceCheckUtils]: 92: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,259 INFO L280 TraceCheckUtils]: 93: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,260 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:05,261 INFO L280 TraceCheckUtils]: 95: Hoare triple {23492#(<= 1 main_~j~0)} #t~post3 := ~j~0; {23517#(<= 1 |main_#t~post3|)} is VALID [2020-07-11 02:30:05,262 INFO L280 TraceCheckUtils]: 96: Hoare triple {23517#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,263 INFO L280 TraceCheckUtils]: 97: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,263 INFO L280 TraceCheckUtils]: 98: Hoare triple {23518#(<= 2 main_~j~0)} #t~post4 := ~i~0; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,264 INFO L280 TraceCheckUtils]: 99: Hoare triple {23518#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,265 INFO L280 TraceCheckUtils]: 100: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,265 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 [2020-07-11 02:30:05,265 INFO L280 TraceCheckUtils]: 102: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,265 INFO L280 TraceCheckUtils]: 103: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,265 INFO L280 TraceCheckUtils]: 104: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,266 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,266 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 [2020-07-11 02:30:05,267 INFO L280 TraceCheckUtils]: 107: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,267 INFO L280 TraceCheckUtils]: 108: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,267 INFO L280 TraceCheckUtils]: 109: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,270 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,271 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 [2020-07-11 02:30:05,271 INFO L280 TraceCheckUtils]: 112: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,272 INFO L280 TraceCheckUtils]: 113: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,272 INFO L280 TraceCheckUtils]: 114: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,273 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,274 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 [2020-07-11 02:30:05,274 INFO L280 TraceCheckUtils]: 117: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,274 INFO L280 TraceCheckUtils]: 118: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,274 INFO L280 TraceCheckUtils]: 119: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,276 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:05,277 INFO L280 TraceCheckUtils]: 121: Hoare triple {23518#(<= 2 main_~j~0)} #t~post5 := ~j~0; {23535#(<= 2 |main_#t~post5|)} is VALID [2020-07-11 02:30:05,278 INFO L280 TraceCheckUtils]: 122: Hoare triple {23535#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:05,279 INFO L280 TraceCheckUtils]: 123: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:05,280 INFO L280 TraceCheckUtils]: 124: Hoare triple {23536#(<= 3 main_~j~0)} #t~post6 := ~i~0; {23536#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:05,281 INFO L280 TraceCheckUtils]: 125: Hoare triple {23536#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:05,282 INFO L280 TraceCheckUtils]: 126: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:05,282 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 [2020-07-11 02:30:05,282 INFO L280 TraceCheckUtils]: 128: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-11 02:30:05,283 INFO L280 TraceCheckUtils]: 129: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-11 02:30:05,283 INFO L280 TraceCheckUtils]: 130: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-11 02:30:05,284 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:05,286 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 [2020-07-11 02:30:05,287 INFO L280 TraceCheckUtils]: 133: Hoare triple {23541#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {23542#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:30:05,288 INFO L280 TraceCheckUtils]: 134: Hoare triple {23542#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {23463#false} is VALID [2020-07-11 02:30:05,288 INFO L280 TraceCheckUtils]: 135: Hoare triple {23463#false} assume !false; {23463#false} is VALID [2020-07-11 02:30:05,314 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2020-07-11 02:30:05,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629709063] [2020-07-11 02:30:05,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:30:05,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-11 02:30:05,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698616363] [2020-07-11 02:30:05,318 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-11 02:30:05,318 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:30:05,318 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-11 02:30:05,461 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:05,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-11 02:30:05,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:30:05,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-11 02:30:05,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-11 02:30:05,463 INFO L87 Difference]: Start difference. First operand 398 states and 529 transitions. Second operand 11 states. [2020-07-11 02:30:08,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:08,184 INFO L93 Difference]: Finished difference Result 432 states and 566 transitions. [2020-07-11 02:30:08,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-11 02:30:08,184 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-11 02:30:08,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:30:08,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:08,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-11 02:30:08,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:08,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-11 02:30:08,189 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 189 transitions. [2020-07-11 02:30:08,444 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:08,457 INFO L225 Difference]: With dead ends: 432 [2020-07-11 02:30:08,457 INFO L226 Difference]: Without dead ends: 430 [2020-07-11 02:30:08,458 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 [2020-07-11 02:30:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-07-11 02:30:09,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 410. [2020-07-11 02:30:09,453 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:30:09,453 INFO L82 GeneralOperation]: Start isEquivalent. First operand 430 states. Second operand 410 states. [2020-07-11 02:30:09,453 INFO L74 IsIncluded]: Start isIncluded. First operand 430 states. Second operand 410 states. [2020-07-11 02:30:09,453 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 410 states. [2020-07-11 02:30:09,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:09,466 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-11 02:30:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-11 02:30:09,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:09,468 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:09,469 INFO L74 IsIncluded]: Start isIncluded. First operand 410 states. Second operand 430 states. [2020-07-11 02:30:09,469 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 430 states. [2020-07-11 02:30:09,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:09,484 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-11 02:30:09,484 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-11 02:30:09,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:09,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:09,486 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:30:09,486 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:30:09,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-07-11 02:30:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 542 transitions. [2020-07-11 02:30:09,501 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 542 transitions. Word has length 136 [2020-07-11 02:30:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:30:09,501 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 542 transitions. [2020-07-11 02:30:09,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-11 02:30:09,501 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 410 states and 542 transitions. [2020-07-11 02:30:10,484 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 542 edges. 542 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:10,484 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 542 transitions. [2020-07-11 02:30:10,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-11 02:30:10,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:30:10,487 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] [2020-07-11 02:30:10,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-11 02:30:10,487 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:30:10,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:30:10,487 INFO L82 PathProgramCache]: Analyzing trace with hash 362381850, now seen corresponding path program 1 times [2020-07-11 02:30:10,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:30:10,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912627592] [2020-07-11 02:30:10,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:30:10,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,630 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,630 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-11 02:30:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,636 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,636 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,636 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,637 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,640 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,641 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,641 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,641 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,645 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,645 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,645 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,646 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,658 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,658 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,658 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,660 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,663 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,664 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,664 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,664 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,668 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,668 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,668 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,669 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,672 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,673 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,673 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,674 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,677 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,677 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,677 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,678 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,681 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,681 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,682 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,682 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,686 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,686 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,686 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,687 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,690 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,690 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,691 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,691 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,702 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,703 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,703 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,704 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,707 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,707 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,708 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,708 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,711 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,712 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,712 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,713 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,716 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,716 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,716 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,717 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,721 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,721 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,721 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,722 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,725 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,725 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,726 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,726 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,730 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,731 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,731 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,732 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:10,736 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,736 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,736 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,737 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,737 INFO L263 TraceCheckUtils]: 0: Hoare triple {26103#true} call ULTIMATE.init(); {26103#true} is VALID [2020-07-11 02:30:10,737 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,738 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-11 02:30:10,738 INFO L263 TraceCheckUtils]: 3: Hoare triple {26103#true} call #t~ret10 := main(); {26103#true} is VALID [2020-07-11 02:30:10,738 INFO L280 TraceCheckUtils]: 4: Hoare triple {26103#true} havoc ~len~0; {26103#true} is VALID [2020-07-11 02:30:10,738 INFO L280 TraceCheckUtils]: 5: Hoare triple {26103#true} havoc ~i~0; {26103#true} is VALID [2020-07-11 02:30:10,738 INFO L280 TraceCheckUtils]: 6: Hoare triple {26103#true} havoc ~j~0; {26103#true} is VALID [2020-07-11 02:30:10,739 INFO L280 TraceCheckUtils]: 7: Hoare triple {26103#true} havoc ~bufsize~0; {26103#true} is VALID [2020-07-11 02:30:10,739 INFO L280 TraceCheckUtils]: 8: Hoare triple {26103#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {26103#true} is VALID [2020-07-11 02:30:10,739 INFO L280 TraceCheckUtils]: 9: Hoare triple {26103#true} ~bufsize~0 := #t~nondet0; {26103#true} is VALID [2020-07-11 02:30:10,739 INFO L280 TraceCheckUtils]: 10: Hoare triple {26103#true} havoc #t~nondet0; {26103#true} is VALID [2020-07-11 02:30:10,739 INFO L280 TraceCheckUtils]: 11: Hoare triple {26103#true} assume !(~bufsize~0 < 0); {26103#true} is VALID [2020-07-11 02:30:10,739 INFO L280 TraceCheckUtils]: 12: Hoare triple {26103#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {26103#true} is VALID [2020-07-11 02:30:10,740 INFO L280 TraceCheckUtils]: 13: Hoare triple {26103#true} ~len~0 := #t~nondet1; {26103#true} is VALID [2020-07-11 02:30:10,740 INFO L280 TraceCheckUtils]: 14: Hoare triple {26103#true} havoc #t~nondet1; {26103#true} is VALID [2020-07-11 02:30:10,740 INFO L280 TraceCheckUtils]: 15: Hoare triple {26103#true} ~limit~0 := ~bufsize~0 - 4; {26103#true} is VALID [2020-07-11 02:30:10,742 INFO L280 TraceCheckUtils]: 16: Hoare triple {26103#true} ~i~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,742 INFO L280 TraceCheckUtils]: 17: Hoare triple {26107#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,743 INFO L280 TraceCheckUtils]: 18: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,743 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 [2020-07-11 02:30:10,744 INFO L280 TraceCheckUtils]: 20: Hoare triple {26107#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,744 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 [2020-07-11 02:30:10,744 INFO L280 TraceCheckUtils]: 22: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,744 INFO L280 TraceCheckUtils]: 23: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,744 INFO L280 TraceCheckUtils]: 24: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,745 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,745 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 [2020-07-11 02:30:10,745 INFO L280 TraceCheckUtils]: 27: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,746 INFO L280 TraceCheckUtils]: 28: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,746 INFO L280 TraceCheckUtils]: 29: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,746 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,747 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 [2020-07-11 02:30:10,747 INFO L280 TraceCheckUtils]: 32: Hoare triple {26107#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,748 INFO L280 TraceCheckUtils]: 33: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,748 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 [2020-07-11 02:30:10,748 INFO L280 TraceCheckUtils]: 35: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,748 INFO L280 TraceCheckUtils]: 36: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,749 INFO L280 TraceCheckUtils]: 37: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,750 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,750 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 [2020-07-11 02:30:10,750 INFO L280 TraceCheckUtils]: 40: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,750 INFO L280 TraceCheckUtils]: 41: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,750 INFO L280 TraceCheckUtils]: 42: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,751 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,751 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 [2020-07-11 02:30:10,751 INFO L280 TraceCheckUtils]: 45: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,751 INFO L280 TraceCheckUtils]: 46: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,752 INFO L280 TraceCheckUtils]: 47: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,752 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,752 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 [2020-07-11 02:30:10,753 INFO L280 TraceCheckUtils]: 50: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,753 INFO L280 TraceCheckUtils]: 51: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,753 INFO L280 TraceCheckUtils]: 52: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,754 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,754 INFO L280 TraceCheckUtils]: 54: Hoare triple {26107#(<= 0 main_~i~0)} #t~post8 := ~j~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,755 INFO L280 TraceCheckUtils]: 55: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,755 INFO L280 TraceCheckUtils]: 56: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:10,756 INFO L280 TraceCheckUtils]: 57: Hoare triple {26107#(<= 0 main_~i~0)} #t~post9 := ~i~0; {26132#(<= 0 |main_#t~post9|)} is VALID [2020-07-11 02:30:10,757 INFO L280 TraceCheckUtils]: 58: Hoare triple {26132#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,757 INFO L280 TraceCheckUtils]: 59: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,758 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 [2020-07-11 02:30:10,758 INFO L280 TraceCheckUtils]: 61: Hoare triple {26133#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,758 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 [2020-07-11 02:30:10,759 INFO L280 TraceCheckUtils]: 63: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,759 INFO L280 TraceCheckUtils]: 64: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,759 INFO L280 TraceCheckUtils]: 65: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,760 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,760 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 [2020-07-11 02:30:10,760 INFO L280 TraceCheckUtils]: 68: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,760 INFO L280 TraceCheckUtils]: 69: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,760 INFO L280 TraceCheckUtils]: 70: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,761 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,761 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 [2020-07-11 02:30:10,762 INFO L280 TraceCheckUtils]: 73: Hoare triple {26133#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,762 INFO L280 TraceCheckUtils]: 74: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~nondet2; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,762 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 [2020-07-11 02:30:10,763 INFO L280 TraceCheckUtils]: 76: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,763 INFO L280 TraceCheckUtils]: 77: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,763 INFO L280 TraceCheckUtils]: 78: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,764 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,764 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 [2020-07-11 02:30:10,764 INFO L280 TraceCheckUtils]: 81: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,764 INFO L280 TraceCheckUtils]: 82: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,764 INFO L280 TraceCheckUtils]: 83: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,765 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,765 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 [2020-07-11 02:30:10,765 INFO L280 TraceCheckUtils]: 86: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,766 INFO L280 TraceCheckUtils]: 87: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,766 INFO L280 TraceCheckUtils]: 88: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,767 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,767 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 [2020-07-11 02:30:10,767 INFO L280 TraceCheckUtils]: 91: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,767 INFO L280 TraceCheckUtils]: 92: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,767 INFO L280 TraceCheckUtils]: 93: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,768 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,769 INFO L280 TraceCheckUtils]: 95: Hoare triple {26133#(<= 1 main_~i~0)} #t~post3 := ~j~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,769 INFO L280 TraceCheckUtils]: 96: Hoare triple {26133#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,770 INFO L280 TraceCheckUtils]: 97: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:10,770 INFO L280 TraceCheckUtils]: 98: Hoare triple {26133#(<= 1 main_~i~0)} #t~post4 := ~i~0; {26158#(<= 1 |main_#t~post4|)} is VALID [2020-07-11 02:30:10,771 INFO L280 TraceCheckUtils]: 99: Hoare triple {26158#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,771 INFO L280 TraceCheckUtils]: 100: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,772 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 [2020-07-11 02:30:10,772 INFO L280 TraceCheckUtils]: 102: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,772 INFO L280 TraceCheckUtils]: 103: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,772 INFO L280 TraceCheckUtils]: 104: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,773 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,773 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 [2020-07-11 02:30:10,773 INFO L280 TraceCheckUtils]: 107: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,773 INFO L280 TraceCheckUtils]: 108: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,774 INFO L280 TraceCheckUtils]: 109: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,774 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,774 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 [2020-07-11 02:30:10,775 INFO L280 TraceCheckUtils]: 112: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,775 INFO L280 TraceCheckUtils]: 113: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,775 INFO L280 TraceCheckUtils]: 114: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,776 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,776 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 [2020-07-11 02:30:10,776 INFO L280 TraceCheckUtils]: 117: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,776 INFO L280 TraceCheckUtils]: 118: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,776 INFO L280 TraceCheckUtils]: 119: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,777 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,778 INFO L280 TraceCheckUtils]: 121: Hoare triple {26159#(<= 2 main_~i~0)} #t~post5 := ~j~0; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,779 INFO L280 TraceCheckUtils]: 122: Hoare triple {26159#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,779 INFO L280 TraceCheckUtils]: 123: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:10,780 INFO L280 TraceCheckUtils]: 124: Hoare triple {26159#(<= 2 main_~i~0)} #t~post6 := ~i~0; {26176#(<= 2 |main_#t~post6|)} is VALID [2020-07-11 02:30:10,781 INFO L280 TraceCheckUtils]: 125: Hoare triple {26176#(<= 2 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,781 INFO L280 TraceCheckUtils]: 126: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,782 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 [2020-07-11 02:30:10,782 INFO L280 TraceCheckUtils]: 128: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,782 INFO L280 TraceCheckUtils]: 129: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,782 INFO L280 TraceCheckUtils]: 130: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,783 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,783 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 [2020-07-11 02:30:10,783 INFO L280 TraceCheckUtils]: 133: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,783 INFO L280 TraceCheckUtils]: 134: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,784 INFO L280 TraceCheckUtils]: 135: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,784 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,785 INFO L280 TraceCheckUtils]: 137: Hoare triple {26177#(<= 3 main_~i~0)} #t~post7 := ~j~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,785 INFO L280 TraceCheckUtils]: 138: Hoare triple {26177#(<= 3 main_~i~0)} ~j~0 := 1 + #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,786 INFO L280 TraceCheckUtils]: 139: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,786 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 [2020-07-11 02:30:10,787 INFO L280 TraceCheckUtils]: 141: Hoare triple {26177#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,787 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 [2020-07-11 02:30:10,788 INFO L280 TraceCheckUtils]: 143: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-11 02:30:10,788 INFO L280 TraceCheckUtils]: 144: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-11 02:30:10,788 INFO L280 TraceCheckUtils]: 145: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-11 02:30:10,791 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:10,792 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 [2020-07-11 02:30:10,792 INFO L280 TraceCheckUtils]: 148: Hoare triple {26190#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {26191#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:30:10,793 INFO L280 TraceCheckUtils]: 149: Hoare triple {26191#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {26104#false} is VALID [2020-07-11 02:30:10,793 INFO L280 TraceCheckUtils]: 150: Hoare triple {26104#false} assume !false; {26104#false} is VALID [2020-07-11 02:30:10,808 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-11 02:30:10,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1912627592] [2020-07-11 02:30:10,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:30:10,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-11 02:30:10,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872878755] [2020-07-11 02:30:10,810 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-11 02:30:10,810 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:30:10,810 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-11 02:30:10,919 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:10,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-11 02:30:10,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:30:10,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-11 02:30:10,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-11 02:30:10,921 INFO L87 Difference]: Start difference. First operand 410 states and 542 transitions. Second operand 11 states. [2020-07-11 02:30:14,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:14,640 INFO L93 Difference]: Finished difference Result 645 states and 888 transitions. [2020-07-11 02:30:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-11 02:30:14,641 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-11 02:30:14,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:30:14,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:14,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-11 02:30:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:14,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-11 02:30:14,647 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-11 02:30:14,971 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:14,992 INFO L225 Difference]: With dead ends: 645 [2020-07-11 02:30:14,992 INFO L226 Difference]: Without dead ends: 639 [2020-07-11 02:30:14,992 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 [2020-07-11 02:30:14,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-07-11 02:30:16,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 572. [2020-07-11 02:30:16,545 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:30:16,546 INFO L82 GeneralOperation]: Start isEquivalent. First operand 639 states. Second operand 572 states. [2020-07-11 02:30:16,546 INFO L74 IsIncluded]: Start isIncluded. First operand 639 states. Second operand 572 states. [2020-07-11 02:30:16,546 INFO L87 Difference]: Start difference. First operand 639 states. Second operand 572 states. [2020-07-11 02:30:16,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:16,570 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-11 02:30:16,570 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-11 02:30:16,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:16,572 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:16,572 INFO L74 IsIncluded]: Start isIncluded. First operand 572 states. Second operand 639 states. [2020-07-11 02:30:16,572 INFO L87 Difference]: Start difference. First operand 572 states. Second operand 639 states. [2020-07-11 02:30:16,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:16,599 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-11 02:30:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-11 02:30:16,601 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:16,601 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:16,601 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:30:16,602 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:30:16,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-07-11 02:30:16,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 778 transitions. [2020-07-11 02:30:16,622 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 778 transitions. Word has length 151 [2020-07-11 02:30:16,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:30:16,623 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 778 transitions. [2020-07-11 02:30:16,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-11 02:30:16,623 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 572 states and 778 transitions. [2020-07-11 02:30:18,050 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 778 edges. 778 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:18,050 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 778 transitions. [2020-07-11 02:30:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-11 02:30:18,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:30:18,053 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] [2020-07-11 02:30:18,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-11 02:30:18,053 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:30:18,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:30:18,054 INFO L82 PathProgramCache]: Analyzing trace with hash -978309232, now seen corresponding path program 2 times [2020-07-11 02:30:18,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:30:18,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1677087431] [2020-07-11 02:30:18,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:30:18,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,194 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,195 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-11 02:30:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,199 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,199 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,200 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,203 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,203 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,204 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,209 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,210 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,210 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,210 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,214 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,214 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,214 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,215 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,218 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,218 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,219 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,220 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,223 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,224 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,224 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,225 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,228 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,229 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,232 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,232 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,244 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,249 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,250 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,250 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,252 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,255 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,256 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,256 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,257 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,260 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,260 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,260 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,261 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,264 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,264 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,264 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,266 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,269 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,269 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,270 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,270 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,273 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,274 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,274 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,274 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,279 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,280 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,280 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,281 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,284 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,284 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,285 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,286 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,291 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,292 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,294 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,305 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,305 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,305 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,306 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:18,310 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,310 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,310 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,311 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:18,311 INFO L263 TraceCheckUtils]: 0: Hoare triple {29924#true} call ULTIMATE.init(); {29924#true} is VALID [2020-07-11 02:30:18,312 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,312 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-11 02:30:18,312 INFO L263 TraceCheckUtils]: 3: Hoare triple {29924#true} call #t~ret10 := main(); {29924#true} is VALID [2020-07-11 02:30:18,312 INFO L280 TraceCheckUtils]: 4: Hoare triple {29924#true} havoc ~len~0; {29924#true} is VALID [2020-07-11 02:30:18,312 INFO L280 TraceCheckUtils]: 5: Hoare triple {29924#true} havoc ~i~0; {29924#true} is VALID [2020-07-11 02:30:18,313 INFO L280 TraceCheckUtils]: 6: Hoare triple {29924#true} havoc ~j~0; {29924#true} is VALID [2020-07-11 02:30:18,313 INFO L280 TraceCheckUtils]: 7: Hoare triple {29924#true} havoc ~bufsize~0; {29924#true} is VALID [2020-07-11 02:30:18,313 INFO L280 TraceCheckUtils]: 8: Hoare triple {29924#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {29924#true} is VALID [2020-07-11 02:30:18,313 INFO L280 TraceCheckUtils]: 9: Hoare triple {29924#true} ~bufsize~0 := #t~nondet0; {29924#true} is VALID [2020-07-11 02:30:18,313 INFO L280 TraceCheckUtils]: 10: Hoare triple {29924#true} havoc #t~nondet0; {29924#true} is VALID [2020-07-11 02:30:18,314 INFO L280 TraceCheckUtils]: 11: Hoare triple {29924#true} assume !(~bufsize~0 < 0); {29924#true} is VALID [2020-07-11 02:30:18,314 INFO L280 TraceCheckUtils]: 12: Hoare triple {29924#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {29924#true} is VALID [2020-07-11 02:30:18,314 INFO L280 TraceCheckUtils]: 13: Hoare triple {29924#true} ~len~0 := #t~nondet1; {29924#true} is VALID [2020-07-11 02:30:18,314 INFO L280 TraceCheckUtils]: 14: Hoare triple {29924#true} havoc #t~nondet1; {29924#true} is VALID [2020-07-11 02:30:18,314 INFO L280 TraceCheckUtils]: 15: Hoare triple {29924#true} ~limit~0 := ~bufsize~0 - 4; {29924#true} is VALID [2020-07-11 02:30:18,315 INFO L280 TraceCheckUtils]: 16: Hoare triple {29924#true} ~i~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,316 INFO L280 TraceCheckUtils]: 17: Hoare triple {29928#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,316 INFO L280 TraceCheckUtils]: 18: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,317 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 [2020-07-11 02:30:18,317 INFO L280 TraceCheckUtils]: 20: Hoare triple {29928#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,318 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 [2020-07-11 02:30:18,318 INFO L280 TraceCheckUtils]: 22: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,318 INFO L280 TraceCheckUtils]: 23: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,318 INFO L280 TraceCheckUtils]: 24: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,319 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,319 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 [2020-07-11 02:30:18,319 INFO L280 TraceCheckUtils]: 27: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,320 INFO L280 TraceCheckUtils]: 28: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,320 INFO L280 TraceCheckUtils]: 29: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,320 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,321 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 [2020-07-11 02:30:18,322 INFO L280 TraceCheckUtils]: 32: Hoare triple {29928#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,322 INFO L280 TraceCheckUtils]: 33: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~nondet2; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,322 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 [2020-07-11 02:30:18,322 INFO L280 TraceCheckUtils]: 35: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,323 INFO L280 TraceCheckUtils]: 36: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,323 INFO L280 TraceCheckUtils]: 37: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,323 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,324 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 [2020-07-11 02:30:18,324 INFO L280 TraceCheckUtils]: 40: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,324 INFO L280 TraceCheckUtils]: 41: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,324 INFO L280 TraceCheckUtils]: 42: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,325 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,325 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 [2020-07-11 02:30:18,325 INFO L280 TraceCheckUtils]: 45: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,325 INFO L280 TraceCheckUtils]: 46: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,326 INFO L280 TraceCheckUtils]: 47: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,326 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,326 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 [2020-07-11 02:30:18,327 INFO L280 TraceCheckUtils]: 50: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,327 INFO L280 TraceCheckUtils]: 51: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,327 INFO L280 TraceCheckUtils]: 52: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,328 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,328 INFO L280 TraceCheckUtils]: 54: Hoare triple {29928#(<= 0 main_~i~0)} #t~post3 := ~j~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,329 INFO L280 TraceCheckUtils]: 55: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,329 INFO L280 TraceCheckUtils]: 56: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-11 02:30:18,330 INFO L280 TraceCheckUtils]: 57: Hoare triple {29928#(<= 0 main_~i~0)} #t~post4 := ~i~0; {29953#(<= 0 |main_#t~post4|)} is VALID [2020-07-11 02:30:18,331 INFO L280 TraceCheckUtils]: 58: Hoare triple {29953#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,331 INFO L280 TraceCheckUtils]: 59: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,331 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 [2020-07-11 02:30:18,332 INFO L280 TraceCheckUtils]: 61: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,332 INFO L280 TraceCheckUtils]: 62: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,332 INFO L280 TraceCheckUtils]: 63: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,333 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,333 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 [2020-07-11 02:30:18,333 INFO L280 TraceCheckUtils]: 66: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,333 INFO L280 TraceCheckUtils]: 67: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,333 INFO L280 TraceCheckUtils]: 68: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,335 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,336 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 [2020-07-11 02:30:18,336 INFO L280 TraceCheckUtils]: 71: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,336 INFO L280 TraceCheckUtils]: 72: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,336 INFO L280 TraceCheckUtils]: 73: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,337 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,337 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 [2020-07-11 02:30:18,338 INFO L280 TraceCheckUtils]: 76: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,338 INFO L280 TraceCheckUtils]: 77: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,338 INFO L280 TraceCheckUtils]: 78: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,339 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,339 INFO L280 TraceCheckUtils]: 80: Hoare triple {29954#(<= 1 main_~i~0)} #t~post5 := ~j~0; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,340 INFO L280 TraceCheckUtils]: 81: Hoare triple {29954#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,340 INFO L280 TraceCheckUtils]: 82: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-11 02:30:18,341 INFO L280 TraceCheckUtils]: 83: Hoare triple {29954#(<= 1 main_~i~0)} #t~post6 := ~i~0; {29971#(<= 1 |main_#t~post6|)} is VALID [2020-07-11 02:30:18,342 INFO L280 TraceCheckUtils]: 84: Hoare triple {29971#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,343 INFO L280 TraceCheckUtils]: 85: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,343 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 [2020-07-11 02:30:18,343 INFO L280 TraceCheckUtils]: 87: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,343 INFO L280 TraceCheckUtils]: 88: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,343 INFO L280 TraceCheckUtils]: 89: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,344 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,344 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 [2020-07-11 02:30:18,344 INFO L280 TraceCheckUtils]: 92: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,345 INFO L280 TraceCheckUtils]: 93: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,345 INFO L280 TraceCheckUtils]: 94: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,347 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,348 INFO L280 TraceCheckUtils]: 96: Hoare triple {29972#(<= 2 main_~i~0)} #t~post7 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,348 INFO L280 TraceCheckUtils]: 97: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,349 INFO L280 TraceCheckUtils]: 98: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,349 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 [2020-07-11 02:30:18,350 INFO L280 TraceCheckUtils]: 100: Hoare triple {29972#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,350 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 [2020-07-11 02:30:18,350 INFO L280 TraceCheckUtils]: 102: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,350 INFO L280 TraceCheckUtils]: 103: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,350 INFO L280 TraceCheckUtils]: 104: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,351 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,351 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 [2020-07-11 02:30:18,352 INFO L280 TraceCheckUtils]: 107: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,352 INFO L280 TraceCheckUtils]: 108: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,352 INFO L280 TraceCheckUtils]: 109: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,352 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,353 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 [2020-07-11 02:30:18,354 INFO L280 TraceCheckUtils]: 112: Hoare triple {29972#(<= 2 main_~i~0)} assume 0 != #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,354 INFO L280 TraceCheckUtils]: 113: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,354 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 [2020-07-11 02:30:18,354 INFO L280 TraceCheckUtils]: 115: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,355 INFO L280 TraceCheckUtils]: 116: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,355 INFO L280 TraceCheckUtils]: 117: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,356 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,356 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 [2020-07-11 02:30:18,356 INFO L280 TraceCheckUtils]: 120: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,356 INFO L280 TraceCheckUtils]: 121: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,356 INFO L280 TraceCheckUtils]: 122: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,357 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,357 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 [2020-07-11 02:30:18,357 INFO L280 TraceCheckUtils]: 125: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,357 INFO L280 TraceCheckUtils]: 126: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,358 INFO L280 TraceCheckUtils]: 127: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,358 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,359 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 [2020-07-11 02:30:18,359 INFO L280 TraceCheckUtils]: 130: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,359 INFO L280 TraceCheckUtils]: 131: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,359 INFO L280 TraceCheckUtils]: 132: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,360 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,360 INFO L280 TraceCheckUtils]: 134: Hoare triple {29972#(<= 2 main_~i~0)} #t~post8 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,361 INFO L280 TraceCheckUtils]: 135: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,361 INFO L280 TraceCheckUtils]: 136: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-11 02:30:18,362 INFO L280 TraceCheckUtils]: 137: Hoare triple {29972#(<= 2 main_~i~0)} #t~post9 := ~i~0; {30005#(<= 2 |main_#t~post9|)} is VALID [2020-07-11 02:30:18,363 INFO L280 TraceCheckUtils]: 138: Hoare triple {30005#(<= 2 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:18,363 INFO L280 TraceCheckUtils]: 139: Hoare triple {30006#(<= 3 main_~i~0)} havoc #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:18,364 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 [2020-07-11 02:30:18,364 INFO L280 TraceCheckUtils]: 141: Hoare triple {30006#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {30006#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:18,365 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 [2020-07-11 02:30:18,365 INFO L280 TraceCheckUtils]: 143: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-11 02:30:18,365 INFO L280 TraceCheckUtils]: 144: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-11 02:30:18,365 INFO L280 TraceCheckUtils]: 145: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-11 02:30:18,366 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-11 02:30:18,367 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 [2020-07-11 02:30:18,367 INFO L280 TraceCheckUtils]: 148: Hoare triple {30011#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {30012#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:30:18,368 INFO L280 TraceCheckUtils]: 149: Hoare triple {30012#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {29925#false} is VALID [2020-07-11 02:30:18,368 INFO L280 TraceCheckUtils]: 150: Hoare triple {29925#false} assume !false; {29925#false} is VALID [2020-07-11 02:30:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 736 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2020-07-11 02:30:18,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1677087431] [2020-07-11 02:30:18,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:30:18,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-11 02:30:18,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591347843] [2020-07-11 02:30:18,384 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-11 02:30:18,384 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:30:18,384 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-11 02:30:18,511 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:18,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-11 02:30:18,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:30:18,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-11 02:30:18,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-11 02:30:18,512 INFO L87 Difference]: Start difference. First operand 572 states and 778 transitions. Second operand 11 states. [2020-07-11 02:30:22,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:22,111 INFO L93 Difference]: Finished difference Result 647 states and 885 transitions. [2020-07-11 02:30:22,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-11 02:30:22,111 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-11 02:30:22,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:30:22,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:22,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-11 02:30:22,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-11 02:30:22,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-11 02:30:22,115 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-11 02:30:22,441 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:22,464 INFO L225 Difference]: With dead ends: 647 [2020-07-11 02:30:22,464 INFO L226 Difference]: Without dead ends: 641 [2020-07-11 02:30:22,465 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 [2020-07-11 02:30:22,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-07-11 02:30:23,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 412. [2020-07-11 02:30:23,646 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:30:23,646 INFO L82 GeneralOperation]: Start isEquivalent. First operand 641 states. Second operand 412 states. [2020-07-11 02:30:23,647 INFO L74 IsIncluded]: Start isIncluded. First operand 641 states. Second operand 412 states. [2020-07-11 02:30:23,647 INFO L87 Difference]: Start difference. First operand 641 states. Second operand 412 states. [2020-07-11 02:30:23,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:23,678 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-11 02:30:23,678 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-11 02:30:23,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:23,681 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:23,681 INFO L74 IsIncluded]: Start isIncluded. First operand 412 states. Second operand 641 states. [2020-07-11 02:30:23,681 INFO L87 Difference]: Start difference. First operand 412 states. Second operand 641 states. [2020-07-11 02:30:23,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:23,712 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-11 02:30:23,712 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-11 02:30:23,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:23,715 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:23,715 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:30:23,715 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:30:23,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-11 02:30:23,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 539 transitions. [2020-07-11 02:30:23,730 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 539 transitions. Word has length 151 [2020-07-11 02:30:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:30:23,730 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 539 transitions. [2020-07-11 02:30:23,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-11 02:30:23,731 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 412 states and 539 transitions. [2020-07-11 02:30:24,793 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 539 edges. 539 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:24,793 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 539 transitions. [2020-07-11 02:30:24,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-11 02:30:24,795 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:30:24,795 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] [2020-07-11 02:30:24,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-11 02:30:24,796 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:30:24,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:30:24,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1688386477, now seen corresponding path program 1 times [2020-07-11 02:30:24,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:30:24,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428850703] [2020-07-11 02:30:24,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:30:24,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:24,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:24,970 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:24,970 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-11 02:30:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:24,978 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:24,978 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:24,978 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:24,979 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:24,982 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:24,983 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:24,983 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:24,984 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:24,986 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:24,987 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:24,987 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:24,988 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:24,991 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:24,992 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:24,992 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:24,993 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:24,999 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,000 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,000 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,000 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,004 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,005 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,005 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,005 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,009 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,009 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,009 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,010 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,013 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,014 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,014 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,015 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,018 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,018 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,019 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,019 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,022 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,023 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,023 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,024 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,027 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,027 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,027 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,028 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,031 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,031 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,031 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,032 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,035 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,035 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,035 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,036 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,039 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,039 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,039 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,040 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,043 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,044 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,044 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,044 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,047 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,048 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,048 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,048 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,054 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,055 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,055 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,061 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,064 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,065 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,065 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,065 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,070 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,070 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,070 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,071 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,074 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,075 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,075 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,076 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:25,079 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,079 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,079 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,080 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,080 INFO L263 TraceCheckUtils]: 0: Hoare triple {33433#true} call ULTIMATE.init(); {33433#true} is VALID [2020-07-11 02:30:25,080 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,080 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L263 TraceCheckUtils]: 3: Hoare triple {33433#true} call #t~ret10 := main(); {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 4: Hoare triple {33433#true} havoc ~len~0; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 5: Hoare triple {33433#true} havoc ~i~0; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 6: Hoare triple {33433#true} havoc ~j~0; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 7: Hoare triple {33433#true} havoc ~bufsize~0; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 8: Hoare triple {33433#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 9: Hoare triple {33433#true} ~bufsize~0 := #t~nondet0; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 10: Hoare triple {33433#true} havoc #t~nondet0; {33433#true} is VALID [2020-07-11 02:30:25,081 INFO L280 TraceCheckUtils]: 11: Hoare triple {33433#true} assume !(~bufsize~0 < 0); {33433#true} is VALID [2020-07-11 02:30:25,082 INFO L280 TraceCheckUtils]: 12: Hoare triple {33433#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {33433#true} is VALID [2020-07-11 02:30:25,082 INFO L280 TraceCheckUtils]: 13: Hoare triple {33433#true} ~len~0 := #t~nondet1; {33433#true} is VALID [2020-07-11 02:30:25,082 INFO L280 TraceCheckUtils]: 14: Hoare triple {33433#true} havoc #t~nondet1; {33433#true} is VALID [2020-07-11 02:30:25,082 INFO L280 TraceCheckUtils]: 15: Hoare triple {33433#true} ~limit~0 := ~bufsize~0 - 4; {33433#true} is VALID [2020-07-11 02:30:25,082 INFO L280 TraceCheckUtils]: 16: Hoare triple {33433#true} ~i~0 := 0; {33433#true} is VALID [2020-07-11 02:30:25,082 INFO L280 TraceCheckUtils]: 17: Hoare triple {33433#true} assume !!(~i~0 < ~len~0); {33433#true} is VALID [2020-07-11 02:30:25,083 INFO L280 TraceCheckUtils]: 18: Hoare triple {33433#true} ~j~0 := 0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,083 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 [2020-07-11 02:30:25,083 INFO L280 TraceCheckUtils]: 20: Hoare triple {33437#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,084 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 [2020-07-11 02:30:25,084 INFO L280 TraceCheckUtils]: 22: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,084 INFO L280 TraceCheckUtils]: 23: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,084 INFO L280 TraceCheckUtils]: 24: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,084 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,085 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 [2020-07-11 02:30:25,085 INFO L280 TraceCheckUtils]: 27: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,085 INFO L280 TraceCheckUtils]: 28: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,085 INFO L280 TraceCheckUtils]: 29: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,086 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,086 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 [2020-07-11 02:30:25,087 INFO L280 TraceCheckUtils]: 32: Hoare triple {33437#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,087 INFO L280 TraceCheckUtils]: 33: Hoare triple {33437#(<= 0 main_~j~0)} havoc #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,087 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 [2020-07-11 02:30:25,087 INFO L280 TraceCheckUtils]: 35: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,088 INFO L280 TraceCheckUtils]: 36: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,088 INFO L280 TraceCheckUtils]: 37: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,090 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,090 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 [2020-07-11 02:30:25,090 INFO L280 TraceCheckUtils]: 40: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,090 INFO L280 TraceCheckUtils]: 41: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,090 INFO L280 TraceCheckUtils]: 42: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,093 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,093 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 [2020-07-11 02:30:25,093 INFO L280 TraceCheckUtils]: 45: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,093 INFO L280 TraceCheckUtils]: 46: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,093 INFO L280 TraceCheckUtils]: 47: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,095 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,096 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 [2020-07-11 02:30:25,096 INFO L280 TraceCheckUtils]: 50: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,096 INFO L280 TraceCheckUtils]: 51: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,096 INFO L280 TraceCheckUtils]: 52: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,097 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:25,099 INFO L280 TraceCheckUtils]: 54: Hoare triple {33437#(<= 0 main_~j~0)} #t~post8 := ~j~0; {33462#(<= 0 |main_#t~post8|)} is VALID [2020-07-11 02:30:25,099 INFO L280 TraceCheckUtils]: 55: Hoare triple {33462#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,100 INFO L280 TraceCheckUtils]: 56: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,100 INFO L280 TraceCheckUtils]: 57: Hoare triple {33463#(<= 1 main_~j~0)} #t~post9 := ~i~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,101 INFO L280 TraceCheckUtils]: 58: Hoare triple {33463#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,101 INFO L280 TraceCheckUtils]: 59: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,101 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 [2020-07-11 02:30:25,102 INFO L280 TraceCheckUtils]: 61: Hoare triple {33463#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,102 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 [2020-07-11 02:30:25,102 INFO L280 TraceCheckUtils]: 63: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,102 INFO L280 TraceCheckUtils]: 64: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,102 INFO L280 TraceCheckUtils]: 65: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,103 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,103 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 [2020-07-11 02:30:25,103 INFO L280 TraceCheckUtils]: 68: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,103 INFO L280 TraceCheckUtils]: 69: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,103 INFO L280 TraceCheckUtils]: 70: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,105 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,107 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 [2020-07-11 02:30:25,108 INFO L280 TraceCheckUtils]: 73: Hoare triple {33463#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,109 INFO L280 TraceCheckUtils]: 74: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~nondet2; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,109 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 [2020-07-11 02:30:25,109 INFO L280 TraceCheckUtils]: 76: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,109 INFO L280 TraceCheckUtils]: 77: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,109 INFO L280 TraceCheckUtils]: 78: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,110 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,110 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 [2020-07-11 02:30:25,110 INFO L280 TraceCheckUtils]: 81: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,110 INFO L280 TraceCheckUtils]: 82: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,110 INFO L280 TraceCheckUtils]: 83: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,111 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,111 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 [2020-07-11 02:30:25,111 INFO L280 TraceCheckUtils]: 86: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,111 INFO L280 TraceCheckUtils]: 87: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,111 INFO L280 TraceCheckUtils]: 88: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,112 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,112 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 [2020-07-11 02:30:25,112 INFO L280 TraceCheckUtils]: 91: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,112 INFO L280 TraceCheckUtils]: 92: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,112 INFO L280 TraceCheckUtils]: 93: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,113 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:25,114 INFO L280 TraceCheckUtils]: 95: Hoare triple {33463#(<= 1 main_~j~0)} #t~post3 := ~j~0; {33488#(<= 1 |main_#t~post3|)} is VALID [2020-07-11 02:30:25,114 INFO L280 TraceCheckUtils]: 96: Hoare triple {33488#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,115 INFO L280 TraceCheckUtils]: 97: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,115 INFO L280 TraceCheckUtils]: 98: Hoare triple {33489#(<= 2 main_~j~0)} #t~post4 := ~i~0; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,116 INFO L280 TraceCheckUtils]: 99: Hoare triple {33489#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,116 INFO L280 TraceCheckUtils]: 100: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,116 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 [2020-07-11 02:30:25,116 INFO L280 TraceCheckUtils]: 102: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,116 INFO L280 TraceCheckUtils]: 103: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,117 INFO L280 TraceCheckUtils]: 104: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,117 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,118 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 [2020-07-11 02:30:25,118 INFO L280 TraceCheckUtils]: 107: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,118 INFO L280 TraceCheckUtils]: 108: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,118 INFO L280 TraceCheckUtils]: 109: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,119 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,119 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 [2020-07-11 02:30:25,119 INFO L280 TraceCheckUtils]: 112: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,119 INFO L280 TraceCheckUtils]: 113: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,120 INFO L280 TraceCheckUtils]: 114: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,120 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,120 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 [2020-07-11 02:30:25,120 INFO L280 TraceCheckUtils]: 117: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,120 INFO L280 TraceCheckUtils]: 118: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,121 INFO L280 TraceCheckUtils]: 119: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,121 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:25,121 INFO L280 TraceCheckUtils]: 121: Hoare triple {33489#(<= 2 main_~j~0)} #t~post5 := ~j~0; {33506#(<= 2 |main_#t~post5|)} is VALID [2020-07-11 02:30:25,122 INFO L280 TraceCheckUtils]: 122: Hoare triple {33506#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,123 INFO L280 TraceCheckUtils]: 123: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,124 INFO L280 TraceCheckUtils]: 124: Hoare triple {33507#(<= 3 main_~j~0)} #t~post6 := ~i~0; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,124 INFO L280 TraceCheckUtils]: 125: Hoare triple {33507#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,124 INFO L280 TraceCheckUtils]: 126: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,124 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 [2020-07-11 02:30:25,125 INFO L280 TraceCheckUtils]: 128: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,125 INFO L280 TraceCheckUtils]: 129: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,125 INFO L280 TraceCheckUtils]: 130: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,125 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,125 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 [2020-07-11 02:30:25,126 INFO L280 TraceCheckUtils]: 133: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,126 INFO L280 TraceCheckUtils]: 134: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,126 INFO L280 TraceCheckUtils]: 135: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,128 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:25,130 INFO L280 TraceCheckUtils]: 137: Hoare triple {33507#(<= 3 main_~j~0)} #t~post7 := ~j~0; {33516#(<= 3 |main_#t~post7|)} is VALID [2020-07-11 02:30:25,130 INFO L280 TraceCheckUtils]: 138: Hoare triple {33516#(<= 3 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,131 INFO L280 TraceCheckUtils]: 139: Hoare triple {33517#(<= 4 main_~j~0)} havoc #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,131 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 [2020-07-11 02:30:25,132 INFO L280 TraceCheckUtils]: 141: Hoare triple {33517#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,132 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 [2020-07-11 02:30:25,132 INFO L280 TraceCheckUtils]: 143: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,132 INFO L280 TraceCheckUtils]: 144: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,132 INFO L280 TraceCheckUtils]: 145: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,133 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,133 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 [2020-07-11 02:30:25,133 INFO L280 TraceCheckUtils]: 148: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,134 INFO L280 TraceCheckUtils]: 149: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,134 INFO L280 TraceCheckUtils]: 150: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,134 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,135 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 [2020-07-11 02:30:25,135 INFO L280 TraceCheckUtils]: 153: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-11 02:30:25,135 INFO L280 TraceCheckUtils]: 154: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-11 02:30:25,135 INFO L280 TraceCheckUtils]: 155: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-11 02:30:25,135 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:25,136 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 [2020-07-11 02:30:25,137 INFO L280 TraceCheckUtils]: 158: Hoare triple {33530#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {33531#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:30:25,137 INFO L280 TraceCheckUtils]: 159: Hoare triple {33531#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {33434#false} is VALID [2020-07-11 02:30:25,137 INFO L280 TraceCheckUtils]: 160: Hoare triple {33434#false} assume !false; {33434#false} is VALID [2020-07-11 02:30:25,150 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-11 02:30:25,151 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428850703] [2020-07-11 02:30:25,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:30:25,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-11 02:30:25,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333485514] [2020-07-11 02:30:25,151 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-11 02:30:25,152 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:30:25,152 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-11 02:30:25,282 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:25,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-11 02:30:25,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:30:25,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-11 02:30:25,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-11 02:30:25,283 INFO L87 Difference]: Start difference. First operand 412 states and 539 transitions. Second operand 13 states. [2020-07-11 02:30:28,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:28,934 INFO L93 Difference]: Finished difference Result 505 states and 669 transitions. [2020-07-11 02:30:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-11 02:30:28,934 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-11 02:30:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:30:28,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-11 02:30:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-11 02:30:28,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-11 02:30:28,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-11 02:30:28,939 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 224 transitions. [2020-07-11 02:30:29,241 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 224 edges. 224 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:29,259 INFO L225 Difference]: With dead ends: 505 [2020-07-11 02:30:29,259 INFO L226 Difference]: Without dead ends: 495 [2020-07-11 02:30:29,260 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 [2020-07-11 02:30:29,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-11 02:30:30,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 459. [2020-07-11 02:30:30,605 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:30:30,606 INFO L82 GeneralOperation]: Start isEquivalent. First operand 495 states. Second operand 459 states. [2020-07-11 02:30:30,606 INFO L74 IsIncluded]: Start isIncluded. First operand 495 states. Second operand 459 states. [2020-07-11 02:30:30,606 INFO L87 Difference]: Start difference. First operand 495 states. Second operand 459 states. [2020-07-11 02:30:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:30,622 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-11 02:30:30,622 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-11 02:30:30,623 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:30,623 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:30,623 INFO L74 IsIncluded]: Start isIncluded. First operand 459 states. Second operand 495 states. [2020-07-11 02:30:30,623 INFO L87 Difference]: Start difference. First operand 459 states. Second operand 495 states. [2020-07-11 02:30:30,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:30,642 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-11 02:30:30,642 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-11 02:30:30,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:30,644 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:30,644 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:30:30,644 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:30:30,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-11 02:30:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 603 transitions. [2020-07-11 02:30:30,656 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 603 transitions. Word has length 161 [2020-07-11 02:30:30,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:30:30,656 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 603 transitions. [2020-07-11 02:30:30,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-11 02:30:30,656 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 459 states and 603 transitions. [2020-07-11 02:30:31,843 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 603 edges. 603 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:31,844 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 603 transitions. [2020-07-11 02:30:31,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-11 02:30:31,846 INFO L414 BasicCegarLoop]: Found error trace [2020-07-11 02:30:31,846 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] [2020-07-11 02:30:31,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-11 02:30:31,847 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-11 02:30:31,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-11 02:30:31,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1620079197, now seen corresponding path program 2 times [2020-07-11 02:30:31,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-11 02:30:31,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690920773] [2020-07-11 02:30:31,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-11 02:30:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,048 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,049 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-11 02:30:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,052 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,052 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,053 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,053 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,058 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,058 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,058 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,059 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,064 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,065 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,065 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,066 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,070 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,071 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,071 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,073 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,077 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,077 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,077 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,078 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,081 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,082 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,082 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,083 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,086 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,086 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,088 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,091 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,091 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,092 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,092 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,096 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,096 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,096 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,097 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,107 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,108 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,108 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,109 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,113 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,113 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,114 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,115 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,119 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,119 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,120 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,120 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,124 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,124 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,124 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,125 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,128 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,129 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,129 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,130 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,134 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,135 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,135 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,136 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,140 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,141 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,141 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,142 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,146 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,147 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,147 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,148 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,151 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,152 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,152 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,153 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,156 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,156 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,157 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,158 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,162 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,162 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,163 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,164 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-11 02:30:32,168 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,168 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,169 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,170 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,170 INFO L263 TraceCheckUtils]: 0: Hoare triple {36474#true} call ULTIMATE.init(); {36474#true} is VALID [2020-07-11 02:30:32,170 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,170 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-11 02:30:32,171 INFO L263 TraceCheckUtils]: 3: Hoare triple {36474#true} call #t~ret10 := main(); {36474#true} is VALID [2020-07-11 02:30:32,171 INFO L280 TraceCheckUtils]: 4: Hoare triple {36474#true} havoc ~len~0; {36474#true} is VALID [2020-07-11 02:30:32,171 INFO L280 TraceCheckUtils]: 5: Hoare triple {36474#true} havoc ~i~0; {36474#true} is VALID [2020-07-11 02:30:32,171 INFO L280 TraceCheckUtils]: 6: Hoare triple {36474#true} havoc ~j~0; {36474#true} is VALID [2020-07-11 02:30:32,172 INFO L280 TraceCheckUtils]: 7: Hoare triple {36474#true} havoc ~bufsize~0; {36474#true} is VALID [2020-07-11 02:30:32,172 INFO L280 TraceCheckUtils]: 8: Hoare triple {36474#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36474#true} is VALID [2020-07-11 02:30:32,172 INFO L280 TraceCheckUtils]: 9: Hoare triple {36474#true} ~bufsize~0 := #t~nondet0; {36474#true} is VALID [2020-07-11 02:30:32,173 INFO L280 TraceCheckUtils]: 10: Hoare triple {36474#true} havoc #t~nondet0; {36474#true} is VALID [2020-07-11 02:30:32,173 INFO L280 TraceCheckUtils]: 11: Hoare triple {36474#true} assume !(~bufsize~0 < 0); {36474#true} is VALID [2020-07-11 02:30:32,173 INFO L280 TraceCheckUtils]: 12: Hoare triple {36474#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36474#true} is VALID [2020-07-11 02:30:32,173 INFO L280 TraceCheckUtils]: 13: Hoare triple {36474#true} ~len~0 := #t~nondet1; {36474#true} is VALID [2020-07-11 02:30:32,174 INFO L280 TraceCheckUtils]: 14: Hoare triple {36474#true} havoc #t~nondet1; {36474#true} is VALID [2020-07-11 02:30:32,174 INFO L280 TraceCheckUtils]: 15: Hoare triple {36474#true} ~limit~0 := ~bufsize~0 - 4; {36474#true} is VALID [2020-07-11 02:30:32,174 INFO L280 TraceCheckUtils]: 16: Hoare triple {36474#true} ~i~0 := 0; {36474#true} is VALID [2020-07-11 02:30:32,174 INFO L280 TraceCheckUtils]: 17: Hoare triple {36474#true} assume !!(~i~0 < ~len~0); {36474#true} is VALID [2020-07-11 02:30:32,175 INFO L280 TraceCheckUtils]: 18: Hoare triple {36474#true} ~j~0 := 0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,175 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 [2020-07-11 02:30:32,176 INFO L280 TraceCheckUtils]: 20: Hoare triple {36478#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,176 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 [2020-07-11 02:30:32,176 INFO L280 TraceCheckUtils]: 22: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,177 INFO L280 TraceCheckUtils]: 23: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,177 INFO L280 TraceCheckUtils]: 24: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,178 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,178 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 [2020-07-11 02:30:32,178 INFO L280 TraceCheckUtils]: 27: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,178 INFO L280 TraceCheckUtils]: 28: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,178 INFO L280 TraceCheckUtils]: 29: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,179 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,180 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 [2020-07-11 02:30:32,180 INFO L280 TraceCheckUtils]: 32: Hoare triple {36478#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,181 INFO L280 TraceCheckUtils]: 33: Hoare triple {36478#(<= 0 main_~j~0)} havoc #t~nondet2; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,181 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 [2020-07-11 02:30:32,181 INFO L280 TraceCheckUtils]: 35: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,182 INFO L280 TraceCheckUtils]: 36: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,182 INFO L280 TraceCheckUtils]: 37: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,183 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,183 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 [2020-07-11 02:30:32,183 INFO L280 TraceCheckUtils]: 40: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,183 INFO L280 TraceCheckUtils]: 41: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,183 INFO L280 TraceCheckUtils]: 42: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,184 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,184 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 [2020-07-11 02:30:32,184 INFO L280 TraceCheckUtils]: 45: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,184 INFO L280 TraceCheckUtils]: 46: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,185 INFO L280 TraceCheckUtils]: 47: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,185 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,185 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 [2020-07-11 02:30:32,186 INFO L280 TraceCheckUtils]: 50: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,186 INFO L280 TraceCheckUtils]: 51: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,186 INFO L280 TraceCheckUtils]: 52: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,187 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-11 02:30:32,187 INFO L280 TraceCheckUtils]: 54: Hoare triple {36478#(<= 0 main_~j~0)} #t~post3 := ~j~0; {36503#(<= 0 |main_#t~post3|)} is VALID [2020-07-11 02:30:32,188 INFO L280 TraceCheckUtils]: 55: Hoare triple {36503#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,189 INFO L280 TraceCheckUtils]: 56: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,189 INFO L280 TraceCheckUtils]: 57: Hoare triple {36504#(<= 1 main_~j~0)} #t~post4 := ~i~0; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,190 INFO L280 TraceCheckUtils]: 58: Hoare triple {36504#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,190 INFO L280 TraceCheckUtils]: 59: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,190 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 [2020-07-11 02:30:32,191 INFO L280 TraceCheckUtils]: 61: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,191 INFO L280 TraceCheckUtils]: 62: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,191 INFO L280 TraceCheckUtils]: 63: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,192 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,192 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 [2020-07-11 02:30:32,192 INFO L280 TraceCheckUtils]: 66: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,192 INFO L280 TraceCheckUtils]: 67: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,192 INFO L280 TraceCheckUtils]: 68: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,193 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,193 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 [2020-07-11 02:30:32,193 INFO L280 TraceCheckUtils]: 71: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,194 INFO L280 TraceCheckUtils]: 72: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,194 INFO L280 TraceCheckUtils]: 73: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,195 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,195 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 [2020-07-11 02:30:32,195 INFO L280 TraceCheckUtils]: 76: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,195 INFO L280 TraceCheckUtils]: 77: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,195 INFO L280 TraceCheckUtils]: 78: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,196 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-11 02:30:32,197 INFO L280 TraceCheckUtils]: 80: Hoare triple {36504#(<= 1 main_~j~0)} #t~post5 := ~j~0; {36521#(<= 1 |main_#t~post5|)} is VALID [2020-07-11 02:30:32,198 INFO L280 TraceCheckUtils]: 81: Hoare triple {36521#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,198 INFO L280 TraceCheckUtils]: 82: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,199 INFO L280 TraceCheckUtils]: 83: Hoare triple {36522#(<= 2 main_~j~0)} #t~post6 := ~i~0; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,200 INFO L280 TraceCheckUtils]: 84: Hoare triple {36522#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,200 INFO L280 TraceCheckUtils]: 85: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,200 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 [2020-07-11 02:30:32,201 INFO L280 TraceCheckUtils]: 87: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,201 INFO L280 TraceCheckUtils]: 88: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,201 INFO L280 TraceCheckUtils]: 89: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,202 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,202 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 [2020-07-11 02:30:32,202 INFO L280 TraceCheckUtils]: 92: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,202 INFO L280 TraceCheckUtils]: 93: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,203 INFO L280 TraceCheckUtils]: 94: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,204 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-11 02:30:32,204 INFO L280 TraceCheckUtils]: 96: Hoare triple {36522#(<= 2 main_~j~0)} #t~post7 := ~j~0; {36531#(<= 2 |main_#t~post7|)} is VALID [2020-07-11 02:30:32,205 INFO L280 TraceCheckUtils]: 97: Hoare triple {36531#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,206 INFO L280 TraceCheckUtils]: 98: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,206 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 [2020-07-11 02:30:32,207 INFO L280 TraceCheckUtils]: 100: Hoare triple {36532#(<= 3 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,207 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 [2020-07-11 02:30:32,208 INFO L280 TraceCheckUtils]: 102: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,208 INFO L280 TraceCheckUtils]: 103: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,208 INFO L280 TraceCheckUtils]: 104: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,209 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,209 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 [2020-07-11 02:30:32,209 INFO L280 TraceCheckUtils]: 107: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,210 INFO L280 TraceCheckUtils]: 108: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,210 INFO L280 TraceCheckUtils]: 109: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,211 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,211 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 [2020-07-11 02:30:32,212 INFO L280 TraceCheckUtils]: 112: Hoare triple {36532#(<= 3 main_~j~0)} assume 0 != #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,213 INFO L280 TraceCheckUtils]: 113: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,213 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 [2020-07-11 02:30:32,213 INFO L280 TraceCheckUtils]: 115: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,213 INFO L280 TraceCheckUtils]: 116: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,213 INFO L280 TraceCheckUtils]: 117: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,214 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,214 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 [2020-07-11 02:30:32,215 INFO L280 TraceCheckUtils]: 120: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,215 INFO L280 TraceCheckUtils]: 121: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,215 INFO L280 TraceCheckUtils]: 122: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,216 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,216 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 [2020-07-11 02:30:32,216 INFO L280 TraceCheckUtils]: 125: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,216 INFO L280 TraceCheckUtils]: 126: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,216 INFO L280 TraceCheckUtils]: 127: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,217 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,217 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 [2020-07-11 02:30:32,218 INFO L280 TraceCheckUtils]: 130: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,218 INFO L280 TraceCheckUtils]: 131: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,218 INFO L280 TraceCheckUtils]: 132: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,219 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-11 02:30:32,219 INFO L280 TraceCheckUtils]: 134: Hoare triple {36532#(<= 3 main_~j~0)} #t~post8 := ~j~0; {36557#(<= 3 |main_#t~post8|)} is VALID [2020-07-11 02:30:32,220 INFO L280 TraceCheckUtils]: 135: Hoare triple {36557#(<= 3 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,221 INFO L280 TraceCheckUtils]: 136: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,221 INFO L280 TraceCheckUtils]: 137: Hoare triple {36558#(<= 4 main_~j~0)} #t~post9 := ~i~0; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,222 INFO L280 TraceCheckUtils]: 138: Hoare triple {36558#(<= 4 main_~j~0)} ~i~0 := 1 + #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,223 INFO L280 TraceCheckUtils]: 139: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,223 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 [2020-07-11 02:30:32,224 INFO L280 TraceCheckUtils]: 141: Hoare triple {36558#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,224 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 [2020-07-11 02:30:32,224 INFO L280 TraceCheckUtils]: 143: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,224 INFO L280 TraceCheckUtils]: 144: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,225 INFO L280 TraceCheckUtils]: 145: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,226 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,226 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 [2020-07-11 02:30:32,226 INFO L280 TraceCheckUtils]: 148: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,226 INFO L280 TraceCheckUtils]: 149: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,226 INFO L280 TraceCheckUtils]: 150: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,227 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,227 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 [2020-07-11 02:30:32,228 INFO L280 TraceCheckUtils]: 153: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-11 02:30:32,228 INFO L280 TraceCheckUtils]: 154: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-11 02:30:32,228 INFO L280 TraceCheckUtils]: 155: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-11 02:30:32,229 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-11 02:30:32,230 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 [2020-07-11 02:30:32,230 INFO L280 TraceCheckUtils]: 158: Hoare triple {36571#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {36572#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-11 02:30:32,231 INFO L280 TraceCheckUtils]: 159: Hoare triple {36572#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {36475#false} is VALID [2020-07-11 02:30:32,231 INFO L280 TraceCheckUtils]: 160: Hoare triple {36475#false} assume !false; {36475#false} is VALID [2020-07-11 02:30:32,252 INFO L134 CoverageAnalysis]: Checked inductivity of 896 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 840 trivial. 0 not checked. [2020-07-11 02:30:32,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690920773] [2020-07-11 02:30:32,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-11 02:30:32,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-11 02:30:32,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016974020] [2020-07-11 02:30:32,257 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-11 02:30:32,257 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-11 02:30:32,257 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-11 02:30:32,380 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:32,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-11 02:30:32,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-11 02:30:32,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-11 02:30:32,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-11 02:30:32,381 INFO L87 Difference]: Start difference. First operand 459 states and 603 transitions. Second operand 13 states. [2020-07-11 02:30:35,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:35,996 INFO L93 Difference]: Finished difference Result 499 states and 659 transitions. [2020-07-11 02:30:35,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-11 02:30:35,997 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-11 02:30:35,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-11 02:30:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-11 02:30:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-11 02:30:35,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-11 02:30:36,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-11 02:30:36,001 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 221 transitions. [2020-07-11 02:30:36,298 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 221 edges. 221 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:36,299 INFO L225 Difference]: With dead ends: 499 [2020-07-11 02:30:36,299 INFO L226 Difference]: Without dead ends: 0 [2020-07-11 02:30:36,301 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 [2020-07-11 02:30:36,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-11 02:30:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-11 02:30:36,302 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-11 02:30:36,302 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-11 02:30:36,302 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-11 02:30:36,302 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-11 02:30:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:36,303 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-11 02:30:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-11 02:30:36,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:36,303 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:36,303 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-11 02:30:36,303 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-11 02:30:36,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-11 02:30:36,303 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-11 02:30:36,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-11 02:30:36,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:36,304 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-11 02:30:36,304 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-11 02:30:36,304 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-11 02:30:36,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-11 02:30:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-11 02:30:36,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-07-11 02:30:36,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-11 02:30:36,304 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-11 02:30:36,304 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-11 02:30:36,304 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-11 02:30:36,305 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-11 02:30:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-11 02:30:36,305 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-11 02:30:36,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-11 02:30:36,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-11 02:30:37,144 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 41 [2020-07-11 02:30:37,874 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 66 [2020-07-11 02:30:38,157 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 100 [2020-07-11 02:30:38,700 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-07-11 02:30:39,669 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 22 [2020-07-11 02:30:40,108 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-07-11 02:30:40,532 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 22 [2020-07-11 02:30:40,965 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 16 [2020-07-11 02:30:41,675 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 26 [2020-07-11 02:30:42,342 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 11 [2020-07-11 02:30:42,583 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 16 [2020-07-11 02:30:42,956 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 25 [2020-07-11 02:30:43,520 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2020-07-11 02:30:43,906 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 18 [2020-07-11 02:30:43,911 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-11 02:30:43,911 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-11 02:30:43,911 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-11 02:30:43,912 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-11 02:30:43,912 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-11 02:30:43,912 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-11 02:30:43,912 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-11 02:30:43,912 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-11 02:30:43,912 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-11 02:30:43,912 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-11 02:30:43,913 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-11 02:30:43,913 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)) [2020-07-11 02:30:43,913 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)) [2020-07-11 02:30:43,913 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 56) the Hoare annotation is: true [2020-07-11 02:30:43,914 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~limit~0 4) main_~bufsize~0) [2020-07-11 02:30:43,914 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)))) [2020-07-11 02:30:43,914 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-11 02:30:43,914 INFO L271 CegarLoopResult]: At program point L23-4(lines 23 54) the Hoare annotation is: true [2020-07-11 02:30:43,915 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-07-11 02:30:43,915 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-07-11 02:30:43,915 INFO L264 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) .cse0 .cse1 .cse2) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1 .cse2))) [2020-07-11 02:30:43,915 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)) [2020-07-11 02:30:43,916 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)) [2020-07-11 02:30:43,916 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)) [2020-07-11 02:30:43,916 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)) [2020-07-11 02:30:43,916 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)) [2020-07-11 02:30:43,916 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)) [2020-07-11 02:30:43,916 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)) [2020-07-11 02:30:43,916 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)) [2020-07-11 02:30:43,917 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)) [2020-07-11 02:30:43,917 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)))) [2020-07-11 02:30:43,917 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-11 02:30:43,917 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-07-11 02:30:43,917 INFO L264 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) .cse0 .cse1 (<= 0 main_~j~0)) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1))) [2020-07-11 02:30:43,917 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-11 02:30:43,917 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)) [2020-07-11 02:30:43,917 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)) [2020-07-11 02:30:43,917 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)) [2020-07-11 02:30:43,917 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)) [2020-07-11 02:30:43,918 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)) [2020-07-11 02:30:43,918 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)) [2020-07-11 02:30:43,918 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)) [2020-07-11 02:30:43,918 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)) [2020-07-11 02:30:43,918 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)) [2020-07-11 02:30:43,918 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-11 02:30:43,918 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-07-11 02:30:43,918 INFO L271 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: true [2020-07-11 02:30:43,918 INFO L264 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1) (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 |main_#t~post8|) (<= 0 main_~i~0) .cse0 (<= 0 main_~j~0) .cse1))) [2020-07-11 02:30:43,919 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-11 02:30:43,919 INFO L264 CegarLoopResult]: At program point L50-1(line 50) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0)) (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 |main_#t~post8|) (<= 0 main_~i~0) (<= 1 main_~j~0) .cse0))) [2020-07-11 02:30:43,919 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)) [2020-07-11 02:30:43,919 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 56) the Hoare annotation is: true [2020-07-11 02:30:43,919 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)) [2020-07-11 02:30:43,919 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)) [2020-07-11 02:30:43,919 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)) [2020-07-11 02:30:43,919 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)) [2020-07-11 02:30:43,919 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)) [2020-07-11 02:30:43,920 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)) [2020-07-11 02:30:43,920 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 56) the Hoare annotation is: true [2020-07-11 02:30:43,920 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)) [2020-07-11 02:30:43,920 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)) [2020-07-11 02:30:43,920 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-11 02:30:43,920 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))) [2020-07-11 02:30:43,920 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-11 02:30:43,920 INFO L264 CegarLoopResult]: At program point L51-1(line 51) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) (<= 1 main_~j~0) (<= 0 |main_#t~post9|) .cse0) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (<= main_~len~0 (+ |main_#t~post9| 1)) (< main_~i~0 main_~len~0)))) [2020-07-11 02:30:43,920 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)))) [2020-07-11 02:30:43,921 INFO L264 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= (+ main_~i~0 2) main_~len~0) (<= 0 main_~i~0) .cse0 .cse1 .cse2) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 (< main_~i~0 main_~len~0) .cse1 .cse2))) [2020-07-11 02:30:43,921 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)) [2020-07-11 02:30:43,921 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)) [2020-07-11 02:30:43,921 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)) [2020-07-11 02:30:43,921 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)) [2020-07-11 02:30:43,921 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)) [2020-07-11 02:30:43,921 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)) [2020-07-11 02:30:43,921 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-11 02:30:43,921 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))) [2020-07-11 02:30:43,922 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-11 02:30:43,922 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))) [2020-07-11 02:30:43,922 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))) [2020-07-11 02:30:43,922 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-11 02:30:43,926 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-11 02:30:43,927 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-11 02:30:43,927 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-11 02:30:43,928 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-11 02:30:43,928 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-11 02:30:43,981 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. [2020-07-11 02:30:44,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.07 02:30:44 BoogieIcfgContainer [2020-07-11 02:30:44,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-11 02:30:44,011 INFO L168 Benchmark]: Toolchain (without parser) took 89090.45 ms. Allocated memory was 137.9 MB in the beginning and 623.9 MB in the end (delta: 486.0 MB). Free memory was 102.9 MB in the beginning and 389.5 MB in the end (delta: -286.6 MB). Peak memory consumption was 199.4 MB. Max. memory is 7.1 GB. [2020-07-11 02:30:44,012 INFO L168 Benchmark]: CDTParser took 1.02 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-11 02:30:44,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.80 ms. Allocated memory is still 137.9 MB. Free memory was 102.4 MB in the beginning and 91.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2020-07-11 02:30:44,012 INFO L168 Benchmark]: Boogie Preprocessor took 124.22 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 91.9 MB in the beginning and 178.6 MB in the end (delta: -86.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-11 02:30:44,013 INFO L168 Benchmark]: RCFGBuilder took 631.51 ms. Allocated memory is still 199.8 MB. Free memory was 178.6 MB in the beginning and 144.8 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-11 02:30:44,013 INFO L168 Benchmark]: TraceAbstraction took 87991.09 ms. Allocated memory was 199.8 MB in the beginning and 623.9 MB in the end (delta: 424.1 MB). Free memory was 144.2 MB in the beginning and 389.5 MB in the end (delta: -245.3 MB). Peak memory consumption was 178.8 MB. Max. memory is 7.1 GB. [2020-07-11 02:30:44,015 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 1.02 ms. Allocated memory is still 137.9 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 331.80 ms. Allocated memory is still 137.9 MB. Free memory was 102.4 MB in the beginning and 91.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.22 ms. Allocated memory was 137.9 MB in the beginning and 199.8 MB in the end (delta: 61.9 MB). Free memory was 91.9 MB in the beginning and 178.6 MB in the end (delta: -86.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 631.51 ms. Allocated memory is still 199.8 MB. Free memory was 178.6 MB in the beginning and 144.8 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 87991.09 ms. Allocated memory was 199.8 MB in the beginning and 623.9 MB in the end (delta: 424.1 MB). Free memory was 144.2 MB in the beginning and 389.5 MB in the end (delta: -245.3 MB). Peak memory consumption was 178.8 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: 80.2s, 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, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 810 GetRequests, 554 SyntacticMatches, 0 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: 14.6s AutomataMinimizationTime, 23 MinimizatonAttempts, 542 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 74 LocationsWithAnnotation, 1484 PreInvPairs, 2305 NumberOfFragments, 1190 HoareAnnotationTreeSize, 1484 FomulaSimplifications, 3249041 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 74 FomulaSimplificationsInter, 745853 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.8s 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...