/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 -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 [2020-07-10 20:22:48,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 20:22:48,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 20:22:48,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 20:22:48,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 20:22:48,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 20:22:48,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 20:22:48,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 20:22:48,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 20:22:48,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 20:22:48,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 20:22:48,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 20:22:48,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 20:22:48,266 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 20:22:48,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 20:22:48,271 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 20:22:48,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 20:22:48,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 20:22:48,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 20:22:48,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 20:22:48,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 20:22:48,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 20:22:48,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 20:22:48,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 20:22:48,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 20:22:48,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 20:22:48,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 20:22:48,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 20:22:48,306 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-10 20:22:48,332 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 20:22:48,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 20:22:48,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 20:22:48,337 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 20:22:48,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 20:22:48,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 20:22:48,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 20:22:48,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 20:22:48,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 20:22:48,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 20:22:48,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 20:22:48,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 20:22:48,339 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 20:22:48,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 20:22:48,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 20:22:48,339 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-10 20:22:48,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 20:22:48,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 20:22:48,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 20:22:48,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 20:22:48,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-10 20:22:48,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 20:22:48,340 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-10 20:22:48,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 20:22:48,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 20:22:48,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 20:22:48,634 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 20:22:48,635 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 20:22:48,636 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-10 20:22:48,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d4d0363/2cc05befd3e34912a9dbd412f25f871e/FLAG40520ed18 [2020-07-10 20:22:49,111 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 20:22:49,112 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-10 20:22:49,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d4d0363/2cc05befd3e34912a9dbd412f25f871e/FLAG40520ed18 [2020-07-10 20:22:49,501 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36d4d0363/2cc05befd3e34912a9dbd412f25f871e [2020-07-10 20:22:49,509 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 20:22:49,512 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 20:22:49,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 20:22:49,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 20:22:49,516 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 20:22:49,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,523 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@359e752f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49, skipping insertion in model container [2020-07-10 20:22:49,523 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 20:22:49,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 20:22:49,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:22:49,824 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 20:22:49,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 20:22:49,860 INFO L208 MainTranslator]: Completed translation [2020-07-10 20:22:49,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49 WrapperNode [2020-07-10 20:22:49,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 20:22:49,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 20:22:49,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 20:22:49,862 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 20:22:49,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,963 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (1/1) ... [2020-07-10 20:22:49,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 20:22:49,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 20:22:49,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 20:22:49,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 20:22:49,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (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 [2020-07-10 20:22:50,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 20:22:50,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 20:22:50,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 20:22:50,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 20:22:50,042 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 20:22:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 20:22:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 20:22:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 20:22:50,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 20:22:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 20:22:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 20:22:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 20:22:50,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 20:22:50,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 20:22:50,566 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-10 20:22:50,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:22:50 BoogieIcfgContainer [2020-07-10 20:22:50,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 20:22:50,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 20:22:50,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 20:22:50,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 20:22:50,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 08:22:49" (1/3) ... [2020-07-10 20:22:50,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718e3218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:22:50, skipping insertion in model container [2020-07-10 20:22:50,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 08:22:49" (2/3) ... [2020-07-10 20:22:50,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718e3218 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 08:22:50, skipping insertion in model container [2020-07-10 20:22:50,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 08:22:50" (3/3) ... [2020-07-10 20:22:50,580 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2020-07-10 20:22:50,592 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-10 20:22:50,601 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 20:22:50,614 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 20:22:50,637 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 20:22:50,638 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 20:22:50,638 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-10 20:22:50,638 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 20:22:50,639 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 20:22:50,639 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 20:22:50,639 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 20:22:50,639 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 20:22:50,657 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-10 20:22:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 20:22:50,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:50,670 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] [2020-07-10 20:22:50,671 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:50,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:50,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1441743938, now seen corresponding path program 1 times [2020-07-10 20:22:50,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:50,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564519585] [2020-07-10 20:22:50,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:50,971 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-10 20:22:50,972 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-10 20:22:50,974 INFO L263 TraceCheckUtils]: 0: Hoare triple {77#true} call ULTIMATE.init(); {77#true} is VALID [2020-07-10 20:22:50,975 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-10 20:22:50,975 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-10 20:22:50,976 INFO L263 TraceCheckUtils]: 3: Hoare triple {77#true} call #t~ret10 := main(); {77#true} is VALID [2020-07-10 20:22:50,976 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} havoc ~len~0; {77#true} is VALID [2020-07-10 20:22:50,977 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-10 20:22:50,977 INFO L280 TraceCheckUtils]: 6: Hoare triple {77#true} havoc ~j~0; {77#true} is VALID [2020-07-10 20:22:50,978 INFO L280 TraceCheckUtils]: 7: Hoare triple {77#true} havoc ~bufsize~0; {77#true} is VALID [2020-07-10 20:22:50,978 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-10 20:22:50,979 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~bufsize~0 := #t~nondet0; {77#true} is VALID [2020-07-10 20:22:50,979 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-10 20:22:50,980 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~bufsize~0 < 0); {77#true} is VALID [2020-07-10 20:22:50,980 INFO L280 TraceCheckUtils]: 12: Hoare triple {77#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {77#true} is VALID [2020-07-10 20:22:50,981 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~len~0 := #t~nondet1; {77#true} is VALID [2020-07-10 20:22:50,981 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} havoc #t~nondet1; {77#true} is VALID [2020-07-10 20:22:50,981 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} ~limit~0 := ~bufsize~0 - 4; {77#true} is VALID [2020-07-10 20:22:50,982 INFO L280 TraceCheckUtils]: 16: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-10 20:22:50,983 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} assume !!(~i~0 < ~len~0); {77#true} is VALID [2020-07-10 20:22:50,983 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#true} ~j~0 := 0; {77#true} is VALID [2020-07-10 20:22:50,986 INFO L280 TraceCheckUtils]: 19: Hoare triple {77#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {77#true} is VALID [2020-07-10 20:22:50,988 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} assume 1 + ~i~0 < ~len~0; {81#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-10 20:22:50,990 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 [2020-07-10 20:22:50,994 INFO L280 TraceCheckUtils]: 22: Hoare triple {82#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {83#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:50,998 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {78#false} is VALID [2020-07-10 20:22:50,998 INFO L280 TraceCheckUtils]: 24: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-10 20:22:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:22:51,006 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:51,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564519585] [2020-07-10 20:22:51,016 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:51,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 20:22:51,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526715899] [2020-07-10 20:22:51,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-10 20:22:51,032 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:51,037 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 20:22:51,094 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:51,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 20:22:51,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:51,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 20:22:51,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 20:22:51,105 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-07-10 20:22:51,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:51,993 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2020-07-10 20:22:51,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 20:22:51,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-10 20:22:51,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:51,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:52,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-10 20:22:52,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-10 20:22:52,059 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 210 transitions. [2020-07-10 20:22:52,366 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:52,382 INFO L225 Difference]: With dead ends: 143 [2020-07-10 20:22:52,382 INFO L226 Difference]: Without dead ends: 81 [2020-07-10 20:22:52,388 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 [2020-07-10 20:22:52,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-10 20:22:52,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2020-07-10 20:22:52,497 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:52,498 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 73 states. [2020-07-10 20:22:52,499 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 73 states. [2020-07-10 20:22:52,499 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 73 states. [2020-07-10 20:22:52,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:52,510 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-10 20:22:52,510 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-10 20:22:52,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:52,513 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:52,514 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 81 states. [2020-07-10 20:22:52,514 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 81 states. [2020-07-10 20:22:52,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:52,523 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-10 20:22:52,523 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-10 20:22:52,526 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:52,526 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:52,526 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:52,527 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:52,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-10 20:22:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2020-07-10 20:22:52,539 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 25 [2020-07-10 20:22:52,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:52,539 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2020-07-10 20:22:52,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 20:22:52,540 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 91 transitions. [2020-07-10 20:22:52,682 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:52,682 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2020-07-10 20:22:52,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-10 20:22:52,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:52,684 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] [2020-07-10 20:22:52,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 20:22:52,684 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:52,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:52,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1406858677, now seen corresponding path program 1 times [2020-07-10 20:22:52,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:52,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1416573994] [2020-07-10 20:22:52,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:52,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:52,801 INFO L280 TraceCheckUtils]: 0: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-10 20:22:52,802 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-10 20:22:52,802 INFO L263 TraceCheckUtils]: 0: Hoare triple {682#true} call ULTIMATE.init(); {682#true} is VALID [2020-07-10 20:22:52,803 INFO L280 TraceCheckUtils]: 1: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-10 20:22:52,803 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-10 20:22:52,803 INFO L263 TraceCheckUtils]: 3: Hoare triple {682#true} call #t~ret10 := main(); {682#true} is VALID [2020-07-10 20:22:52,804 INFO L280 TraceCheckUtils]: 4: Hoare triple {682#true} havoc ~len~0; {682#true} is VALID [2020-07-10 20:22:52,804 INFO L280 TraceCheckUtils]: 5: Hoare triple {682#true} havoc ~i~0; {682#true} is VALID [2020-07-10 20:22:52,804 INFO L280 TraceCheckUtils]: 6: Hoare triple {682#true} havoc ~j~0; {682#true} is VALID [2020-07-10 20:22:52,805 INFO L280 TraceCheckUtils]: 7: Hoare triple {682#true} havoc ~bufsize~0; {682#true} is VALID [2020-07-10 20:22:52,805 INFO L280 TraceCheckUtils]: 8: Hoare triple {682#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {682#true} is VALID [2020-07-10 20:22:52,805 INFO L280 TraceCheckUtils]: 9: Hoare triple {682#true} ~bufsize~0 := #t~nondet0; {682#true} is VALID [2020-07-10 20:22:52,806 INFO L280 TraceCheckUtils]: 10: Hoare triple {682#true} havoc #t~nondet0; {682#true} is VALID [2020-07-10 20:22:52,806 INFO L280 TraceCheckUtils]: 11: Hoare triple {682#true} assume !(~bufsize~0 < 0); {682#true} is VALID [2020-07-10 20:22:52,806 INFO L280 TraceCheckUtils]: 12: Hoare triple {682#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {682#true} is VALID [2020-07-10 20:22:52,807 INFO L280 TraceCheckUtils]: 13: Hoare triple {682#true} ~len~0 := #t~nondet1; {682#true} is VALID [2020-07-10 20:22:52,807 INFO L280 TraceCheckUtils]: 14: Hoare triple {682#true} havoc #t~nondet1; {682#true} is VALID [2020-07-10 20:22:52,807 INFO L280 TraceCheckUtils]: 15: Hoare triple {682#true} ~limit~0 := ~bufsize~0 - 4; {682#true} is VALID [2020-07-10 20:22:52,808 INFO L280 TraceCheckUtils]: 16: Hoare triple {682#true} ~i~0 := 0; {682#true} is VALID [2020-07-10 20:22:52,809 INFO L280 TraceCheckUtils]: 17: Hoare triple {682#true} assume !!(~i~0 < ~len~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-10 20:22:52,810 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 [2020-07-10 20:22:52,811 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 [2020-07-10 20:22:52,812 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 [2020-07-10 20:22:52,814 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 [2020-07-10 20:22:52,815 INFO L280 TraceCheckUtils]: 22: Hoare triple {687#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {688#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:52,815 INFO L280 TraceCheckUtils]: 23: Hoare triple {688#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {683#false} is VALID [2020-07-10 20:22:52,816 INFO L280 TraceCheckUtils]: 24: Hoare triple {683#false} assume !false; {683#false} is VALID [2020-07-10 20:22:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:22:52,817 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:52,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1416573994] [2020-07-10 20:22:52,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:52,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 20:22:52,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364262613] [2020-07-10 20:22:52,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-10 20:22:52,820 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:52,820 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 20:22:52,848 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:52,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 20:22:52,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:52,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 20:22:52,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 20:22:52,849 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 5 states. [2020-07-10 20:22:53,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:53,350 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-07-10 20:22:53,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 20:22:53,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-10 20:22:53,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:53,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:53,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-10 20:22:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:53,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-10 20:22:53,359 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 94 transitions. [2020-07-10 20:22:53,487 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:53,491 INFO L225 Difference]: With dead ends: 85 [2020-07-10 20:22:53,492 INFO L226 Difference]: Without dead ends: 83 [2020-07-10 20:22:53,493 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 [2020-07-10 20:22:53,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-10 20:22:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-07-10 20:22:53,583 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:53,584 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 81 states. [2020-07-10 20:22:53,584 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 81 states. [2020-07-10 20:22:53,584 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 81 states. [2020-07-10 20:22:53,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:53,590 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-10 20:22:53,590 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-10 20:22:53,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:53,592 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:53,592 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 83 states. [2020-07-10 20:22:53,592 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 83 states. [2020-07-10 20:22:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:53,598 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-10 20:22:53,599 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-10 20:22:53,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:53,600 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:53,600 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:53,600 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:53,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-10 20:22:53,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2020-07-10 20:22:53,606 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 25 [2020-07-10 20:22:53,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:53,606 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2020-07-10 20:22:53,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 20:22:53,607 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 97 transitions. [2020-07-10 20:22:53,728 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:53,729 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2020-07-10 20:22:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-10 20:22:53,730 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:53,730 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] [2020-07-10 20:22:53,730 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 20:22:53,731 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:53,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:53,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1771333938, now seen corresponding path program 1 times [2020-07-10 20:22:53,732 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:53,732 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1363201440] [2020-07-10 20:22:53,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:53,832 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-10 20:22:53,833 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-10 20:22:53,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:53,844 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-10 20:22:53,845 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-10 20:22:53,845 INFO L280 TraceCheckUtils]: 2: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-10 20:22:53,846 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-10 20:22:53,847 INFO L263 TraceCheckUtils]: 0: Hoare triple {1191#true} call ULTIMATE.init(); {1191#true} is VALID [2020-07-10 20:22:53,847 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-10 20:22:53,847 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-10 20:22:53,848 INFO L263 TraceCheckUtils]: 3: Hoare triple {1191#true} call #t~ret10 := main(); {1191#true} is VALID [2020-07-10 20:22:53,848 INFO L280 TraceCheckUtils]: 4: Hoare triple {1191#true} havoc ~len~0; {1191#true} is VALID [2020-07-10 20:22:53,848 INFO L280 TraceCheckUtils]: 5: Hoare triple {1191#true} havoc ~i~0; {1191#true} is VALID [2020-07-10 20:22:53,849 INFO L280 TraceCheckUtils]: 6: Hoare triple {1191#true} havoc ~j~0; {1191#true} is VALID [2020-07-10 20:22:53,849 INFO L280 TraceCheckUtils]: 7: Hoare triple {1191#true} havoc ~bufsize~0; {1191#true} is VALID [2020-07-10 20:22:53,849 INFO L280 TraceCheckUtils]: 8: Hoare triple {1191#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1191#true} is VALID [2020-07-10 20:22:53,849 INFO L280 TraceCheckUtils]: 9: Hoare triple {1191#true} ~bufsize~0 := #t~nondet0; {1191#true} is VALID [2020-07-10 20:22:53,850 INFO L280 TraceCheckUtils]: 10: Hoare triple {1191#true} havoc #t~nondet0; {1191#true} is VALID [2020-07-10 20:22:53,850 INFO L280 TraceCheckUtils]: 11: Hoare triple {1191#true} assume !(~bufsize~0 < 0); {1191#true} is VALID [2020-07-10 20:22:53,850 INFO L280 TraceCheckUtils]: 12: Hoare triple {1191#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1191#true} is VALID [2020-07-10 20:22:53,851 INFO L280 TraceCheckUtils]: 13: Hoare triple {1191#true} ~len~0 := #t~nondet1; {1191#true} is VALID [2020-07-10 20:22:53,851 INFO L280 TraceCheckUtils]: 14: Hoare triple {1191#true} havoc #t~nondet1; {1191#true} is VALID [2020-07-10 20:22:53,851 INFO L280 TraceCheckUtils]: 15: Hoare triple {1191#true} ~limit~0 := ~bufsize~0 - 4; {1191#true} is VALID [2020-07-10 20:22:53,852 INFO L280 TraceCheckUtils]: 16: Hoare triple {1191#true} ~i~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-10 20:22:53,853 INFO L280 TraceCheckUtils]: 17: Hoare triple {1195#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {1195#(<= 0 main_~i~0)} is VALID [2020-07-10 20:22:53,854 INFO L280 TraceCheckUtils]: 18: Hoare triple {1195#(<= 0 main_~i~0)} ~j~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-10 20:22:53,854 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 [2020-07-10 20:22:53,855 INFO L280 TraceCheckUtils]: 20: Hoare triple {1195#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-10 20:22:53,855 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 [2020-07-10 20:22:53,856 INFO L280 TraceCheckUtils]: 22: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-10 20:22:53,856 INFO L280 TraceCheckUtils]: 23: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-10 20:22:53,856 INFO L280 TraceCheckUtils]: 24: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-10 20:22:53,857 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-10 20:22:53,858 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 [2020-07-10 20:22:53,859 INFO L280 TraceCheckUtils]: 27: Hoare triple {1200#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1201#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:53,860 INFO L280 TraceCheckUtils]: 28: Hoare triple {1201#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1192#false} is VALID [2020-07-10 20:22:53,860 INFO L280 TraceCheckUtils]: 29: Hoare triple {1192#false} assume !false; {1192#false} is VALID [2020-07-10 20:22:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:22:53,862 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:53,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1363201440] [2020-07-10 20:22:53,863 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:53,863 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 20:22:53,863 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029893864] [2020-07-10 20:22:53,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-10 20:22:53,864 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:53,864 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 20:22:53,897 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:53,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 20:22:53,898 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:53,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 20:22:53,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 20:22:53,898 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand 5 states. [2020-07-10 20:22:54,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:54,435 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2020-07-10 20:22:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 20:22:54,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-10 20:22:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:54,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:54,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-10 20:22:54,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:54,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-10 20:22:54,444 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 132 transitions. [2020-07-10 20:22:54,591 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:54,596 INFO L225 Difference]: With dead ends: 116 [2020-07-10 20:22:54,596 INFO L226 Difference]: Without dead ends: 114 [2020-07-10 20:22:54,598 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 [2020-07-10 20:22:54,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-10 20:22:54,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2020-07-10 20:22:54,735 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:54,735 INFO L82 GeneralOperation]: Start isEquivalent. First operand 114 states. Second operand 100 states. [2020-07-10 20:22:54,735 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 100 states. [2020-07-10 20:22:54,736 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 100 states. [2020-07-10 20:22:54,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:54,746 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-10 20:22:54,746 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-10 20:22:54,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:54,748 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:54,748 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 114 states. [2020-07-10 20:22:54,748 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 114 states. [2020-07-10 20:22:54,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:54,758 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-10 20:22:54,758 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-10 20:22:54,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:54,759 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:54,760 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:54,760 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:54,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-10 20:22:54,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2020-07-10 20:22:54,768 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 30 [2020-07-10 20:22:54,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:54,768 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2020-07-10 20:22:54,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 20:22:54,768 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 125 transitions. [2020-07-10 20:22:54,925 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:54,926 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2020-07-10 20:22:54,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-10 20:22:54,927 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:54,927 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] [2020-07-10 20:22:54,928 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 20:22:54,928 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:54,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:54,928 INFO L82 PathProgramCache]: Analyzing trace with hash 456630219, now seen corresponding path program 1 times [2020-07-10 20:22:54,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:54,929 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1549770124] [2020-07-10 20:22:54,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:55,054 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-10 20:22:55,055 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-10 20:22:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:55,077 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-10 20:22:55,077 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-10 20:22:55,078 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-10 20:22:55,081 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 [2020-07-10 20:22:55,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:55,098 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-10 20:22:55,099 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-10 20:22:55,099 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-10 20:22:55,100 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 [2020-07-10 20:22:55,100 INFO L263 TraceCheckUtils]: 0: Hoare triple {1866#true} call ULTIMATE.init(); {1866#true} is VALID [2020-07-10 20:22:55,101 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-10 20:22:55,101 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-10 20:22:55,101 INFO L263 TraceCheckUtils]: 3: Hoare triple {1866#true} call #t~ret10 := main(); {1866#true} is VALID [2020-07-10 20:22:55,102 INFO L280 TraceCheckUtils]: 4: Hoare triple {1866#true} havoc ~len~0; {1866#true} is VALID [2020-07-10 20:22:55,102 INFO L280 TraceCheckUtils]: 5: Hoare triple {1866#true} havoc ~i~0; {1866#true} is VALID [2020-07-10 20:22:55,105 INFO L280 TraceCheckUtils]: 6: Hoare triple {1866#true} havoc ~j~0; {1866#true} is VALID [2020-07-10 20:22:55,106 INFO L280 TraceCheckUtils]: 7: Hoare triple {1866#true} havoc ~bufsize~0; {1866#true} is VALID [2020-07-10 20:22:55,106 INFO L280 TraceCheckUtils]: 8: Hoare triple {1866#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1866#true} is VALID [2020-07-10 20:22:55,106 INFO L280 TraceCheckUtils]: 9: Hoare triple {1866#true} ~bufsize~0 := #t~nondet0; {1866#true} is VALID [2020-07-10 20:22:55,106 INFO L280 TraceCheckUtils]: 10: Hoare triple {1866#true} havoc #t~nondet0; {1866#true} is VALID [2020-07-10 20:22:55,107 INFO L280 TraceCheckUtils]: 11: Hoare triple {1866#true} assume !(~bufsize~0 < 0); {1866#true} is VALID [2020-07-10 20:22:55,107 INFO L280 TraceCheckUtils]: 12: Hoare triple {1866#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1866#true} is VALID [2020-07-10 20:22:55,108 INFO L280 TraceCheckUtils]: 13: Hoare triple {1866#true} ~len~0 := #t~nondet1; {1866#true} is VALID [2020-07-10 20:22:55,108 INFO L280 TraceCheckUtils]: 14: Hoare triple {1866#true} havoc #t~nondet1; {1866#true} is VALID [2020-07-10 20:22:55,110 INFO L280 TraceCheckUtils]: 15: Hoare triple {1866#true} ~limit~0 := ~bufsize~0 - 4; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-10 20:22:55,113 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 [2020-07-10 20:22:55,113 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 [2020-07-10 20:22:55,114 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 [2020-07-10 20:22:55,115 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 [2020-07-10 20:22:55,116 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 [2020-07-10 20:22:55,119 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 [2020-07-10 20:22:55,120 INFO L280 TraceCheckUtils]: 22: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-10 20:22:55,120 INFO L280 TraceCheckUtils]: 23: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-10 20:22:55,120 INFO L280 TraceCheckUtils]: 24: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-10 20:22:55,130 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 [2020-07-10 20:22:55,131 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 [2020-07-10 20:22:55,131 INFO L280 TraceCheckUtils]: 27: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-10 20:22:55,131 INFO L280 TraceCheckUtils]: 28: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-10 20:22:55,132 INFO L280 TraceCheckUtils]: 29: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-10 20:22:55,136 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 [2020-07-10 20:22:55,138 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 [2020-07-10 20:22:55,139 INFO L280 TraceCheckUtils]: 32: Hoare triple {1880#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1881#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:55,139 INFO L280 TraceCheckUtils]: 33: Hoare triple {1881#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1867#false} is VALID [2020-07-10 20:22:55,139 INFO L280 TraceCheckUtils]: 34: Hoare triple {1867#false} assume !false; {1867#false} is VALID [2020-07-10 20:22:55,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:22:55,142 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:55,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1549770124] [2020-07-10 20:22:55,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:55,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-10 20:22:55,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635664913] [2020-07-10 20:22:55,148 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-10 20:22:55,148 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:55,149 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-10 20:22:55,185 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:55,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-10 20:22:55,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:55,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-10 20:22:55,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-10 20:22:55,186 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand 6 states. [2020-07-10 20:22:55,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:55,907 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2020-07-10 20:22:55,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-10 20:22:55,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-10 20:22:55,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 20:22:55,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-10 20:22:55,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-10 20:22:55,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-10 20:22:55,915 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 91 transitions. [2020-07-10 20:22:56,009 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:56,012 INFO L225 Difference]: With dead ends: 106 [2020-07-10 20:22:56,013 INFO L226 Difference]: Without dead ends: 104 [2020-07-10 20:22:56,013 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 [2020-07-10 20:22:56,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-07-10 20:22:56,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-07-10 20:22:56,189 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:56,189 INFO L82 GeneralOperation]: Start isEquivalent. First operand 104 states. Second operand 104 states. [2020-07-10 20:22:56,189 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-10 20:22:56,189 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-10 20:22:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:56,195 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-10 20:22:56,195 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-10 20:22:56,196 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:56,196 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:56,197 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-10 20:22:56,197 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-10 20:22:56,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:56,202 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-10 20:22:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-10 20:22:56,203 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:56,204 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:56,204 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:56,204 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:56,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-10 20:22:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-07-10 20:22:56,209 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 35 [2020-07-10 20:22:56,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:56,210 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-07-10 20:22:56,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-10 20:22:56,210 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 128 transitions. [2020-07-10 20:22:56,389 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:56,389 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-10 20:22:56,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-10 20:22:56,391 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:56,391 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] [2020-07-10 20:22:56,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-10 20:22:56,392 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:56,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:56,392 INFO L82 PathProgramCache]: Analyzing trace with hash 364478305, now seen corresponding path program 1 times [2020-07-10 20:22:56,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:56,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1737733513] [2020-07-10 20:22:56,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:56,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:56,473 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,473 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-10 20:22:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:56,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-10 20:22:56,485 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-10 20:22:56,485 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,486 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:56,499 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-10 20:22:56,499 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-10 20:22:56,499 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,500 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:56,509 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-10 20:22:56,509 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-10 20:22:56,509 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,510 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,511 INFO L263 TraceCheckUtils]: 0: Hoare triple {2516#true} call ULTIMATE.init(); {2516#true} is VALID [2020-07-10 20:22:56,511 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,511 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-10 20:22:56,511 INFO L263 TraceCheckUtils]: 3: Hoare triple {2516#true} call #t~ret10 := main(); {2516#true} is VALID [2020-07-10 20:22:56,512 INFO L280 TraceCheckUtils]: 4: Hoare triple {2516#true} havoc ~len~0; {2516#true} is VALID [2020-07-10 20:22:56,512 INFO L280 TraceCheckUtils]: 5: Hoare triple {2516#true} havoc ~i~0; {2516#true} is VALID [2020-07-10 20:22:56,512 INFO L280 TraceCheckUtils]: 6: Hoare triple {2516#true} havoc ~j~0; {2516#true} is VALID [2020-07-10 20:22:56,512 INFO L280 TraceCheckUtils]: 7: Hoare triple {2516#true} havoc ~bufsize~0; {2516#true} is VALID [2020-07-10 20:22:56,513 INFO L280 TraceCheckUtils]: 8: Hoare triple {2516#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2516#true} is VALID [2020-07-10 20:22:56,513 INFO L280 TraceCheckUtils]: 9: Hoare triple {2516#true} ~bufsize~0 := #t~nondet0; {2516#true} is VALID [2020-07-10 20:22:56,513 INFO L280 TraceCheckUtils]: 10: Hoare triple {2516#true} havoc #t~nondet0; {2516#true} is VALID [2020-07-10 20:22:56,513 INFO L280 TraceCheckUtils]: 11: Hoare triple {2516#true} assume !(~bufsize~0 < 0); {2516#true} is VALID [2020-07-10 20:22:56,514 INFO L280 TraceCheckUtils]: 12: Hoare triple {2516#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2516#true} is VALID [2020-07-10 20:22:56,514 INFO L280 TraceCheckUtils]: 13: Hoare triple {2516#true} ~len~0 := #t~nondet1; {2516#true} is VALID [2020-07-10 20:22:56,514 INFO L280 TraceCheckUtils]: 14: Hoare triple {2516#true} havoc #t~nondet1; {2516#true} is VALID [2020-07-10 20:22:56,514 INFO L280 TraceCheckUtils]: 15: Hoare triple {2516#true} ~limit~0 := ~bufsize~0 - 4; {2516#true} is VALID [2020-07-10 20:22:56,514 INFO L280 TraceCheckUtils]: 16: Hoare triple {2516#true} ~i~0 := 0; {2516#true} is VALID [2020-07-10 20:22:56,515 INFO L280 TraceCheckUtils]: 17: Hoare triple {2516#true} assume !!(~i~0 < ~len~0); {2516#true} is VALID [2020-07-10 20:22:56,515 INFO L280 TraceCheckUtils]: 18: Hoare triple {2516#true} ~j~0 := 0; {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,516 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 [2020-07-10 20:22:56,516 INFO L280 TraceCheckUtils]: 20: Hoare triple {2520#(<= 0 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,516 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 [2020-07-10 20:22:56,516 INFO L280 TraceCheckUtils]: 22: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-10 20:22:56,517 INFO L280 TraceCheckUtils]: 23: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-10 20:22:56,517 INFO L280 TraceCheckUtils]: 24: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,519 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,519 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 [2020-07-10 20:22:56,520 INFO L280 TraceCheckUtils]: 27: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-10 20:22:56,520 INFO L280 TraceCheckUtils]: 28: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-10 20:22:56,520 INFO L280 TraceCheckUtils]: 29: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,521 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,522 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 [2020-07-10 20:22:56,522 INFO L280 TraceCheckUtils]: 32: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-10 20:22:56,522 INFO L280 TraceCheckUtils]: 33: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-10 20:22:56,522 INFO L280 TraceCheckUtils]: 34: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-10 20:22:56,523 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-10 20:22:56,525 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 [2020-07-10 20:22:56,525 INFO L280 TraceCheckUtils]: 37: Hoare triple {2533#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {2534#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:56,526 INFO L280 TraceCheckUtils]: 38: Hoare triple {2534#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {2517#false} is VALID [2020-07-10 20:22:56,526 INFO L280 TraceCheckUtils]: 39: Hoare triple {2517#false} assume !false; {2517#false} is VALID [2020-07-10 20:22:56,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:22:56,528 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:56,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1737733513] [2020-07-10 20:22:56,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:56,529 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 20:22:56,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876064803] [2020-07-10 20:22:56,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-10 20:22:56,530 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:56,530 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 20:22:56,570 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:56,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 20:22:56,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:56,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 20:22:56,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 20:22:56,573 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 5 states. [2020-07-10 20:22:57,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:57,188 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-07-10 20:22:57,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 20:22:57,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-10 20:22:57,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:57,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:57,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-10 20:22:57,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-10 20:22:57,197 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 126 transitions. [2020-07-10 20:22:57,358 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:57,362 INFO L225 Difference]: With dead ends: 135 [2020-07-10 20:22:57,363 INFO L226 Difference]: Without dead ends: 133 [2020-07-10 20:22:57,363 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 [2020-07-10 20:22:57,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-10 20:22:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-07-10 20:22:57,590 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:57,590 INFO L82 GeneralOperation]: Start isEquivalent. First operand 133 states. Second operand 125 states. [2020-07-10 20:22:57,591 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 125 states. [2020-07-10 20:22:57,591 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 125 states. [2020-07-10 20:22:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:57,598 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-10 20:22:57,598 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-10 20:22:57,599 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:57,599 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:57,600 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 133 states. [2020-07-10 20:22:57,600 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 133 states. [2020-07-10 20:22:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:57,607 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-10 20:22:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-10 20:22:57,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:57,608 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:57,608 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:57,608 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-10 20:22:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2020-07-10 20:22:57,615 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 40 [2020-07-10 20:22:57,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:57,615 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2020-07-10 20:22:57,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 20:22:57,616 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 125 states and 162 transitions. [2020-07-10 20:22:57,858 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:57,858 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-07-10 20:22:57,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-10 20:22:57,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:57,860 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] [2020-07-10 20:22:57,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-10 20:22:57,861 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:57,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:57,862 INFO L82 PathProgramCache]: Analyzing trace with hash 914533499, now seen corresponding path program 1 times [2020-07-10 20:22:57,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:57,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486931865] [2020-07-10 20:22:57,862 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:57,981 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:57,982 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-10 20:22:57,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:57,991 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:57,992 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:57,992 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:57,996 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 [2020-07-10 20:22:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:58,005 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,005 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,005 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,006 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 [2020-07-10 20:22:58,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:58,014 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,014 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,015 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,016 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 [2020-07-10 20:22:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:58,023 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,024 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,024 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,025 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 [2020-07-10 20:22:58,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:58,031 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,032 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,032 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,032 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-10 20:22:58,033 INFO L263 TraceCheckUtils]: 0: Hoare triple {3325#true} call ULTIMATE.init(); {3325#true} is VALID [2020-07-10 20:22:58,033 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,033 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-10 20:22:58,033 INFO L263 TraceCheckUtils]: 3: Hoare triple {3325#true} call #t~ret10 := main(); {3325#true} is VALID [2020-07-10 20:22:58,034 INFO L280 TraceCheckUtils]: 4: Hoare triple {3325#true} havoc ~len~0; {3325#true} is VALID [2020-07-10 20:22:58,034 INFO L280 TraceCheckUtils]: 5: Hoare triple {3325#true} havoc ~i~0; {3325#true} is VALID [2020-07-10 20:22:58,034 INFO L280 TraceCheckUtils]: 6: Hoare triple {3325#true} havoc ~j~0; {3325#true} is VALID [2020-07-10 20:22:58,034 INFO L280 TraceCheckUtils]: 7: Hoare triple {3325#true} havoc ~bufsize~0; {3325#true} is VALID [2020-07-10 20:22:58,035 INFO L280 TraceCheckUtils]: 8: Hoare triple {3325#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3325#true} is VALID [2020-07-10 20:22:58,035 INFO L280 TraceCheckUtils]: 9: Hoare triple {3325#true} ~bufsize~0 := #t~nondet0; {3325#true} is VALID [2020-07-10 20:22:58,035 INFO L280 TraceCheckUtils]: 10: Hoare triple {3325#true} havoc #t~nondet0; {3325#true} is VALID [2020-07-10 20:22:58,035 INFO L280 TraceCheckUtils]: 11: Hoare triple {3325#true} assume !(~bufsize~0 < 0); {3325#true} is VALID [2020-07-10 20:22:58,036 INFO L280 TraceCheckUtils]: 12: Hoare triple {3325#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {3325#true} is VALID [2020-07-10 20:22:58,036 INFO L280 TraceCheckUtils]: 13: Hoare triple {3325#true} ~len~0 := #t~nondet1; {3325#true} is VALID [2020-07-10 20:22:58,036 INFO L280 TraceCheckUtils]: 14: Hoare triple {3325#true} havoc #t~nondet1; {3325#true} is VALID [2020-07-10 20:22:58,036 INFO L280 TraceCheckUtils]: 15: Hoare triple {3325#true} ~limit~0 := ~bufsize~0 - 4; {3325#true} is VALID [2020-07-10 20:22:58,037 INFO L280 TraceCheckUtils]: 16: Hoare triple {3325#true} ~i~0 := 0; {3325#true} is VALID [2020-07-10 20:22:58,037 INFO L280 TraceCheckUtils]: 17: Hoare triple {3325#true} assume !!(~i~0 < ~len~0); {3325#true} is VALID [2020-07-10 20:22:58,037 INFO L280 TraceCheckUtils]: 18: Hoare triple {3325#true} ~j~0 := 0; {3325#true} is VALID [2020-07-10 20:22:58,037 INFO L280 TraceCheckUtils]: 19: Hoare triple {3325#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {3325#true} is VALID [2020-07-10 20:22:58,038 INFO L280 TraceCheckUtils]: 20: Hoare triple {3325#true} assume !(1 + ~i~0 < ~len~0); {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-10 20:22:58,039 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 [2020-07-10 20:22:58,039 INFO L280 TraceCheckUtils]: 22: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,039 INFO L280 TraceCheckUtils]: 23: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,040 INFO L280 TraceCheckUtils]: 24: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,041 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 [2020-07-10 20:22:58,041 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 [2020-07-10 20:22:58,041 INFO L280 TraceCheckUtils]: 27: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,042 INFO L280 TraceCheckUtils]: 28: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,042 INFO L280 TraceCheckUtils]: 29: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,044 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 [2020-07-10 20:22:58,044 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 [2020-07-10 20:22:58,044 INFO L280 TraceCheckUtils]: 32: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,045 INFO L280 TraceCheckUtils]: 33: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,045 INFO L280 TraceCheckUtils]: 34: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,046 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 [2020-07-10 20:22:58,046 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 [2020-07-10 20:22:58,046 INFO L280 TraceCheckUtils]: 37: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,046 INFO L280 TraceCheckUtils]: 38: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,047 INFO L280 TraceCheckUtils]: 39: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,048 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 [2020-07-10 20:22:58,048 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 [2020-07-10 20:22:58,049 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 [2020-07-10 20:22:58,050 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 [2020-07-10 20:22:58,050 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 [2020-07-10 20:22:58,051 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 [2020-07-10 20:22:58,052 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 [2020-07-10 20:22:58,053 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 [2020-07-10 20:22:58,054 INFO L280 TraceCheckUtils]: 48: Hoare triple {3347#(<= main_~len~0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {3326#false} is VALID [2020-07-10 20:22:58,054 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 [2020-07-10 20:22:58,054 INFO L280 TraceCheckUtils]: 50: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-10 20:22:58,055 INFO L280 TraceCheckUtils]: 51: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-10 20:22:58,055 INFO L280 TraceCheckUtils]: 52: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-10 20:22:58,055 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-10 20:22:58,055 INFO L263 TraceCheckUtils]: 54: Hoare triple {3326#false} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {3326#false} is VALID [2020-07-10 20:22:58,055 INFO L280 TraceCheckUtils]: 55: Hoare triple {3326#false} ~cond := #in~cond; {3326#false} is VALID [2020-07-10 20:22:58,056 INFO L280 TraceCheckUtils]: 56: Hoare triple {3326#false} assume 0 == ~cond; {3326#false} is VALID [2020-07-10 20:22:58,056 INFO L280 TraceCheckUtils]: 57: Hoare triple {3326#false} assume !false; {3326#false} is VALID [2020-07-10 20:22:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 20:22:58,059 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:58,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486931865] [2020-07-10 20:22:58,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:58,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 20:22:58,060 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325489848] [2020-07-10 20:22:58,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-10 20:22:58,061 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:58,061 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 20:22:58,115 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:58,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 20:22:58,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:58,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 20:22:58,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-10 20:22:58,117 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand 5 states. [2020-07-10 20:22:58,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:58,661 INFO L93 Difference]: Finished difference Result 229 states and 302 transitions. [2020-07-10 20:22:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 20:22:58,662 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-10 20:22:58,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:22:58,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-10 20:22:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 20:22:58,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-10 20:22:58,670 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 172 transitions. [2020-07-10 20:22:58,865 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 172 edges. 172 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:58,872 INFO L225 Difference]: With dead ends: 229 [2020-07-10 20:22:58,872 INFO L226 Difference]: Without dead ends: 128 [2020-07-10 20:22:58,874 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 [2020-07-10 20:22:58,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-10 20:22:59,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-10 20:22:59,114 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:22:59,115 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 128 states. [2020-07-10 20:22:59,115 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-10 20:22:59,115 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-10 20:22:59,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:59,121 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-10 20:22:59,121 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-10 20:22:59,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:59,122 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:59,123 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-10 20:22:59,123 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-10 20:22:59,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:22:59,129 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-10 20:22:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-10 20:22:59,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:22:59,131 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:22:59,131 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:22:59,131 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:22:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-10 20:22:59,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 165 transitions. [2020-07-10 20:22:59,137 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 165 transitions. Word has length 58 [2020-07-10 20:22:59,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:22:59,138 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 165 transitions. [2020-07-10 20:22:59,138 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 20:22:59,138 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 128 states and 165 transitions. [2020-07-10 20:22:59,358 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:59,358 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-10 20:22:59,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-10 20:22:59,360 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:22:59,360 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] [2020-07-10 20:22:59,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-10 20:22:59,361 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:22:59,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:22:59,361 INFO L82 PathProgramCache]: Analyzing trace with hash -1807369608, now seen corresponding path program 1 times [2020-07-10 20:22:59,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:22:59,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898274915] [2020-07-10 20:22:59,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:22:59,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,533 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,534 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-10 20:22:59,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,548 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,548 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,549 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,549 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 [2020-07-10 20:22:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,557 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,557 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,557 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,558 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 [2020-07-10 20:22:59,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,566 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,566 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,566 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,567 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 [2020-07-10 20:22:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,574 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,574 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,574 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,575 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 [2020-07-10 20:22:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,587 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,587 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,588 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,589 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 [2020-07-10 20:22:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:22:59,597 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,598 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,598 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,599 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 [2020-07-10 20:22:59,599 INFO L263 TraceCheckUtils]: 0: Hoare triple {4328#true} call ULTIMATE.init(); {4328#true} is VALID [2020-07-10 20:22:59,600 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,600 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-10 20:22:59,600 INFO L263 TraceCheckUtils]: 3: Hoare triple {4328#true} call #t~ret10 := main(); {4328#true} is VALID [2020-07-10 20:22:59,600 INFO L280 TraceCheckUtils]: 4: Hoare triple {4328#true} havoc ~len~0; {4328#true} is VALID [2020-07-10 20:22:59,601 INFO L280 TraceCheckUtils]: 5: Hoare triple {4328#true} havoc ~i~0; {4328#true} is VALID [2020-07-10 20:22:59,601 INFO L280 TraceCheckUtils]: 6: Hoare triple {4328#true} havoc ~j~0; {4328#true} is VALID [2020-07-10 20:22:59,601 INFO L280 TraceCheckUtils]: 7: Hoare triple {4328#true} havoc ~bufsize~0; {4328#true} is VALID [2020-07-10 20:22:59,601 INFO L280 TraceCheckUtils]: 8: Hoare triple {4328#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4328#true} is VALID [2020-07-10 20:22:59,602 INFO L280 TraceCheckUtils]: 9: Hoare triple {4328#true} ~bufsize~0 := #t~nondet0; {4328#true} is VALID [2020-07-10 20:22:59,602 INFO L280 TraceCheckUtils]: 10: Hoare triple {4328#true} havoc #t~nondet0; {4328#true} is VALID [2020-07-10 20:22:59,602 INFO L280 TraceCheckUtils]: 11: Hoare triple {4328#true} assume !(~bufsize~0 < 0); {4328#true} is VALID [2020-07-10 20:22:59,602 INFO L280 TraceCheckUtils]: 12: Hoare triple {4328#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4328#true} is VALID [2020-07-10 20:22:59,603 INFO L280 TraceCheckUtils]: 13: Hoare triple {4328#true} ~len~0 := #t~nondet1; {4328#true} is VALID [2020-07-10 20:22:59,603 INFO L280 TraceCheckUtils]: 14: Hoare triple {4328#true} havoc #t~nondet1; {4328#true} is VALID [2020-07-10 20:22:59,603 INFO L280 TraceCheckUtils]: 15: Hoare triple {4328#true} ~limit~0 := ~bufsize~0 - 4; {4328#true} is VALID [2020-07-10 20:22:59,603 INFO L280 TraceCheckUtils]: 16: Hoare triple {4328#true} ~i~0 := 0; {4328#true} is VALID [2020-07-10 20:22:59,603 INFO L280 TraceCheckUtils]: 17: Hoare triple {4328#true} assume !!(~i~0 < ~len~0); {4328#true} is VALID [2020-07-10 20:22:59,604 INFO L280 TraceCheckUtils]: 18: Hoare triple {4328#true} ~j~0 := 0; {4328#true} is VALID [2020-07-10 20:22:59,604 INFO L280 TraceCheckUtils]: 19: Hoare triple {4328#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {4328#true} is VALID [2020-07-10 20:22:59,612 INFO L280 TraceCheckUtils]: 20: Hoare triple {4328#true} assume 1 + ~i~0 < ~len~0; {4332#(<= (+ main_~i~0 2) main_~len~0)} is VALID [2020-07-10 20:22:59,612 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 [2020-07-10 20:22:59,612 INFO L280 TraceCheckUtils]: 22: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,613 INFO L280 TraceCheckUtils]: 23: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,613 INFO L280 TraceCheckUtils]: 24: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,614 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 [2020-07-10 20:22:59,614 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 [2020-07-10 20:22:59,614 INFO L280 TraceCheckUtils]: 27: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,615 INFO L280 TraceCheckUtils]: 28: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,615 INFO L280 TraceCheckUtils]: 29: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,616 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 [2020-07-10 20:22:59,616 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 [2020-07-10 20:22:59,617 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 [2020-07-10 20:22:59,617 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 [2020-07-10 20:22:59,618 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 [2020-07-10 20:22:59,618 INFO L280 TraceCheckUtils]: 35: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,618 INFO L280 TraceCheckUtils]: 36: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,618 INFO L280 TraceCheckUtils]: 37: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,619 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 [2020-07-10 20:22:59,619 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 [2020-07-10 20:22:59,620 INFO L280 TraceCheckUtils]: 40: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,620 INFO L280 TraceCheckUtils]: 41: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,620 INFO L280 TraceCheckUtils]: 42: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,622 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 [2020-07-10 20:22:59,623 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 [2020-07-10 20:22:59,623 INFO L280 TraceCheckUtils]: 45: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,623 INFO L280 TraceCheckUtils]: 46: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,624 INFO L280 TraceCheckUtils]: 47: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,624 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 [2020-07-10 20:22:59,625 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 [2020-07-10 20:22:59,625 INFO L280 TraceCheckUtils]: 50: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-10 20:22:59,625 INFO L280 TraceCheckUtils]: 51: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-10 20:22:59,625 INFO L280 TraceCheckUtils]: 52: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-10 20:22:59,626 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 [2020-07-10 20:22:59,627 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 [2020-07-10 20:22:59,628 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 [2020-07-10 20:22:59,628 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 [2020-07-10 20:22:59,629 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 [2020-07-10 20:22:59,630 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 [2020-07-10 20:22:59,630 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 [2020-07-10 20:22:59,631 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 [2020-07-10 20:22:59,632 INFO L280 TraceCheckUtils]: 61: Hoare triple {4359#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {4360#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:22:59,633 INFO L280 TraceCheckUtils]: 62: Hoare triple {4360#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {4329#false} is VALID [2020-07-10 20:22:59,633 INFO L280 TraceCheckUtils]: 63: Hoare triple {4329#false} assume !false; {4329#false} is VALID [2020-07-10 20:22:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-10 20:22:59,638 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:22:59,639 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [898274915] [2020-07-10 20:22:59,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:22:59,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 20:22:59,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725111151] [2020-07-10 20:22:59,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-10 20:22:59,640 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:22:59,641 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 20:22:59,692 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:22:59,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 20:22:59,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:22:59,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 20:22:59,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-10 20:22:59,693 INFO L87 Difference]: Start difference. First operand 128 states and 165 transitions. Second operand 7 states. [2020-07-10 20:23:00,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:00,543 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2020-07-10 20:23:00,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 20:23:00,543 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-10 20:23:00,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:00,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:00,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-10 20:23:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:00,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-10 20:23:00,549 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 101 transitions. [2020-07-10 20:23:00,691 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:00,696 INFO L225 Difference]: With dead ends: 136 [2020-07-10 20:23:00,696 INFO L226 Difference]: Without dead ends: 134 [2020-07-10 20:23:00,697 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 [2020-07-10 20:23:00,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-10 20:23:00,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-07-10 20:23:00,950 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:00,950 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 132 states. [2020-07-10 20:23:00,950 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 132 states. [2020-07-10 20:23:00,950 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 132 states. [2020-07-10 20:23:00,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:00,957 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-10 20:23:00,958 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-10 20:23:00,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:00,959 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:00,959 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 134 states. [2020-07-10 20:23:00,959 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 134 states. [2020-07-10 20:23:00,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:00,966 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-10 20:23:00,966 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-10 20:23:00,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:00,967 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:00,968 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:00,968 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:00,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-10 20:23:00,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2020-07-10 20:23:00,974 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 64 [2020-07-10 20:23:00,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:00,975 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2020-07-10 20:23:00,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 20:23:00,975 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 132 states and 168 transitions. [2020-07-10 20:23:01,201 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2020-07-10 20:23:01,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-10 20:23:01,203 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:01,203 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] [2020-07-10 20:23:01,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-10 20:23:01,203 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:01,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1715909932, now seen corresponding path program 1 times [2020-07-10 20:23:01,204 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:01,204 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472366218] [2020-07-10 20:23:01,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,289 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,289 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-10 20:23:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,295 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,296 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,296 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,297 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,306 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,306 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,306 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,309 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,315 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,315 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,316 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,316 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,323 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,323 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,324 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,324 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,329 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,330 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,330 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,331 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,335 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,336 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,336 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,337 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:01,342 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,343 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,343 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,344 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:01,344 INFO L263 TraceCheckUtils]: 0: Hoare triple {5173#true} call ULTIMATE.init(); {5173#true} is VALID [2020-07-10 20:23:01,344 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,344 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-10 20:23:01,345 INFO L263 TraceCheckUtils]: 3: Hoare triple {5173#true} call #t~ret10 := main(); {5173#true} is VALID [2020-07-10 20:23:01,345 INFO L280 TraceCheckUtils]: 4: Hoare triple {5173#true} havoc ~len~0; {5173#true} is VALID [2020-07-10 20:23:01,345 INFO L280 TraceCheckUtils]: 5: Hoare triple {5173#true} havoc ~i~0; {5173#true} is VALID [2020-07-10 20:23:01,345 INFO L280 TraceCheckUtils]: 6: Hoare triple {5173#true} havoc ~j~0; {5173#true} is VALID [2020-07-10 20:23:01,345 INFO L280 TraceCheckUtils]: 7: Hoare triple {5173#true} havoc ~bufsize~0; {5173#true} is VALID [2020-07-10 20:23:01,346 INFO L280 TraceCheckUtils]: 8: Hoare triple {5173#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {5173#true} is VALID [2020-07-10 20:23:01,346 INFO L280 TraceCheckUtils]: 9: Hoare triple {5173#true} ~bufsize~0 := #t~nondet0; {5173#true} is VALID [2020-07-10 20:23:01,346 INFO L280 TraceCheckUtils]: 10: Hoare triple {5173#true} havoc #t~nondet0; {5173#true} is VALID [2020-07-10 20:23:01,346 INFO L280 TraceCheckUtils]: 11: Hoare triple {5173#true} assume !(~bufsize~0 < 0); {5173#true} is VALID [2020-07-10 20:23:01,346 INFO L280 TraceCheckUtils]: 12: Hoare triple {5173#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {5173#true} is VALID [2020-07-10 20:23:01,347 INFO L280 TraceCheckUtils]: 13: Hoare triple {5173#true} ~len~0 := #t~nondet1; {5173#true} is VALID [2020-07-10 20:23:01,347 INFO L280 TraceCheckUtils]: 14: Hoare triple {5173#true} havoc #t~nondet1; {5173#true} is VALID [2020-07-10 20:23:01,347 INFO L280 TraceCheckUtils]: 15: Hoare triple {5173#true} ~limit~0 := ~bufsize~0 - 4; {5173#true} is VALID [2020-07-10 20:23:01,348 INFO L280 TraceCheckUtils]: 16: Hoare triple {5173#true} ~i~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,348 INFO L280 TraceCheckUtils]: 17: Hoare triple {5177#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,349 INFO L280 TraceCheckUtils]: 18: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,350 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 [2020-07-10 20:23:01,350 INFO L280 TraceCheckUtils]: 20: Hoare triple {5177#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,351 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 [2020-07-10 20:23:01,351 INFO L280 TraceCheckUtils]: 22: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,351 INFO L280 TraceCheckUtils]: 23: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,351 INFO L280 TraceCheckUtils]: 24: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,352 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,352 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 [2020-07-10 20:23:01,353 INFO L280 TraceCheckUtils]: 27: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,353 INFO L280 TraceCheckUtils]: 28: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,353 INFO L280 TraceCheckUtils]: 29: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,354 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,355 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 [2020-07-10 20:23:01,355 INFO L280 TraceCheckUtils]: 32: Hoare triple {5177#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,356 INFO L280 TraceCheckUtils]: 33: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~nondet2; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,356 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 [2020-07-10 20:23:01,356 INFO L280 TraceCheckUtils]: 35: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,356 INFO L280 TraceCheckUtils]: 36: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,357 INFO L280 TraceCheckUtils]: 37: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,358 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,358 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 [2020-07-10 20:23:01,358 INFO L280 TraceCheckUtils]: 40: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,358 INFO L280 TraceCheckUtils]: 41: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,358 INFO L280 TraceCheckUtils]: 42: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,359 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,359 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 [2020-07-10 20:23:01,360 INFO L280 TraceCheckUtils]: 45: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,360 INFO L280 TraceCheckUtils]: 46: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,360 INFO L280 TraceCheckUtils]: 47: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,361 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,361 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 [2020-07-10 20:23:01,361 INFO L280 TraceCheckUtils]: 50: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,362 INFO L280 TraceCheckUtils]: 51: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,362 INFO L280 TraceCheckUtils]: 52: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,362 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,363 INFO L280 TraceCheckUtils]: 54: Hoare triple {5177#(<= 0 main_~i~0)} #t~post3 := ~j~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,364 INFO L280 TraceCheckUtils]: 55: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,364 INFO L280 TraceCheckUtils]: 56: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:01,365 INFO L280 TraceCheckUtils]: 57: Hoare triple {5177#(<= 0 main_~i~0)} #t~post4 := ~i~0; {5202#(<= 0 |main_#t~post4|)} is VALID [2020-07-10 20:23:01,366 INFO L280 TraceCheckUtils]: 58: Hoare triple {5202#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:01,366 INFO L280 TraceCheckUtils]: 59: Hoare triple {5203#(<= 1 main_~i~0)} havoc #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:01,367 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 [2020-07-10 20:23:01,367 INFO L280 TraceCheckUtils]: 61: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-10 20:23:01,367 INFO L280 TraceCheckUtils]: 62: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-10 20:23:01,367 INFO L280 TraceCheckUtils]: 63: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-10 20:23:01,368 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:01,369 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 [2020-07-10 20:23:01,370 INFO L280 TraceCheckUtils]: 66: Hoare triple {5208#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {5209#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:01,371 INFO L280 TraceCheckUtils]: 67: Hoare triple {5209#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {5174#false} is VALID [2020-07-10 20:23:01,371 INFO L280 TraceCheckUtils]: 68: Hoare triple {5174#false} assume !false; {5174#false} is VALID [2020-07-10 20:23:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-10 20:23:01,375 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:01,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472366218] [2020-07-10 20:23:01,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:01,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 20:23:01,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156976420] [2020-07-10 20:23:01,376 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-10 20:23:01,376 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:01,377 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 20:23:01,432 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:01,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 20:23:01,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:01,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 20:23:01,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-10 20:23:01,433 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand 7 states. [2020-07-10 20:23:02,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:02,389 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2020-07-10 20:23:02,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 20:23:02,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-10 20:23:02,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:02,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:02,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-10 20:23:02,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-10 20:23:02,397 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 145 transitions. [2020-07-10 20:23:02,569 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:02,574 INFO L225 Difference]: With dead ends: 162 [2020-07-10 20:23:02,574 INFO L226 Difference]: Without dead ends: 160 [2020-07-10 20:23:02,575 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 [2020-07-10 20:23:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-10 20:23:02,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2020-07-10 20:23:02,890 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:02,890 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 146 states. [2020-07-10 20:23:02,890 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 146 states. [2020-07-10 20:23:02,890 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 146 states. [2020-07-10 20:23:02,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:02,899 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-10 20:23:02,899 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-10 20:23:02,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:02,900 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:02,900 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 160 states. [2020-07-10 20:23:02,900 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 160 states. [2020-07-10 20:23:02,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:02,908 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-10 20:23:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-10 20:23:02,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:02,909 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:02,909 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:02,909 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:02,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-10 20:23:02,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2020-07-10 20:23:02,917 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 69 [2020-07-10 20:23:02,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:02,917 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2020-07-10 20:23:02,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 20:23:02,917 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 146 states and 185 transitions. [2020-07-10 20:23:03,221 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:03,221 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2020-07-10 20:23:03,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-10 20:23:03,223 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:03,223 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] [2020-07-10 20:23:03,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-10 20:23:03,223 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:03,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:03,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1298936315, now seen corresponding path program 1 times [2020-07-10 20:23:03,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:03,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332901509] [2020-07-10 20:23:03,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,368 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,368 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-10 20:23:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,374 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,374 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,375 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,375 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,382 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,383 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,383 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,385 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,393 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,394 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,394 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,394 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,399 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,399 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,399 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,401 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,405 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,405 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,405 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,406 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,415 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,415 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,415 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,416 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:03,422 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,422 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,423 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,424 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:03,424 INFO L263 TraceCheckUtils]: 0: Hoare triple {6154#true} call ULTIMATE.init(); {6154#true} is VALID [2020-07-10 20:23:03,424 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,424 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-10 20:23:03,424 INFO L263 TraceCheckUtils]: 3: Hoare triple {6154#true} call #t~ret10 := main(); {6154#true} is VALID [2020-07-10 20:23:03,425 INFO L280 TraceCheckUtils]: 4: Hoare triple {6154#true} havoc ~len~0; {6154#true} is VALID [2020-07-10 20:23:03,425 INFO L280 TraceCheckUtils]: 5: Hoare triple {6154#true} havoc ~i~0; {6154#true} is VALID [2020-07-10 20:23:03,425 INFO L280 TraceCheckUtils]: 6: Hoare triple {6154#true} havoc ~j~0; {6154#true} is VALID [2020-07-10 20:23:03,425 INFO L280 TraceCheckUtils]: 7: Hoare triple {6154#true} havoc ~bufsize~0; {6154#true} is VALID [2020-07-10 20:23:03,425 INFO L280 TraceCheckUtils]: 8: Hoare triple {6154#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6154#true} is VALID [2020-07-10 20:23:03,426 INFO L280 TraceCheckUtils]: 9: Hoare triple {6154#true} ~bufsize~0 := #t~nondet0; {6154#true} is VALID [2020-07-10 20:23:03,426 INFO L280 TraceCheckUtils]: 10: Hoare triple {6154#true} havoc #t~nondet0; {6154#true} is VALID [2020-07-10 20:23:03,426 INFO L280 TraceCheckUtils]: 11: Hoare triple {6154#true} assume !(~bufsize~0 < 0); {6154#true} is VALID [2020-07-10 20:23:03,426 INFO L280 TraceCheckUtils]: 12: Hoare triple {6154#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6154#true} is VALID [2020-07-10 20:23:03,427 INFO L280 TraceCheckUtils]: 13: Hoare triple {6154#true} ~len~0 := #t~nondet1; {6154#true} is VALID [2020-07-10 20:23:03,427 INFO L280 TraceCheckUtils]: 14: Hoare triple {6154#true} havoc #t~nondet1; {6154#true} is VALID [2020-07-10 20:23:03,427 INFO L280 TraceCheckUtils]: 15: Hoare triple {6154#true} ~limit~0 := ~bufsize~0 - 4; {6154#true} is VALID [2020-07-10 20:23:03,429 INFO L280 TraceCheckUtils]: 16: Hoare triple {6154#true} ~i~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,429 INFO L280 TraceCheckUtils]: 17: Hoare triple {6158#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,430 INFO L280 TraceCheckUtils]: 18: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,430 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 [2020-07-10 20:23:03,431 INFO L280 TraceCheckUtils]: 20: Hoare triple {6158#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,431 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 [2020-07-10 20:23:03,431 INFO L280 TraceCheckUtils]: 22: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,431 INFO L280 TraceCheckUtils]: 23: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,432 INFO L280 TraceCheckUtils]: 24: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,437 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,437 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 [2020-07-10 20:23:03,437 INFO L280 TraceCheckUtils]: 27: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,438 INFO L280 TraceCheckUtils]: 28: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,438 INFO L280 TraceCheckUtils]: 29: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,438 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,439 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 [2020-07-10 20:23:03,439 INFO L280 TraceCheckUtils]: 32: Hoare triple {6158#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,440 INFO L280 TraceCheckUtils]: 33: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,440 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 [2020-07-10 20:23:03,440 INFO L280 TraceCheckUtils]: 35: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,440 INFO L280 TraceCheckUtils]: 36: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,441 INFO L280 TraceCheckUtils]: 37: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,441 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,442 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 [2020-07-10 20:23:03,442 INFO L280 TraceCheckUtils]: 40: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,442 INFO L280 TraceCheckUtils]: 41: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,442 INFO L280 TraceCheckUtils]: 42: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,443 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,443 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 [2020-07-10 20:23:03,443 INFO L280 TraceCheckUtils]: 45: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,443 INFO L280 TraceCheckUtils]: 46: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,444 INFO L280 TraceCheckUtils]: 47: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,444 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,445 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 [2020-07-10 20:23:03,445 INFO L280 TraceCheckUtils]: 50: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,445 INFO L280 TraceCheckUtils]: 51: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,445 INFO L280 TraceCheckUtils]: 52: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,446 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,446 INFO L280 TraceCheckUtils]: 54: Hoare triple {6158#(<= 0 main_~i~0)} #t~post8 := ~j~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,447 INFO L280 TraceCheckUtils]: 55: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,447 INFO L280 TraceCheckUtils]: 56: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:03,448 INFO L280 TraceCheckUtils]: 57: Hoare triple {6158#(<= 0 main_~i~0)} #t~post9 := ~i~0; {6183#(<= 0 |main_#t~post9|)} is VALID [2020-07-10 20:23:03,449 INFO L280 TraceCheckUtils]: 58: Hoare triple {6183#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:03,449 INFO L280 TraceCheckUtils]: 59: Hoare triple {6184#(<= 1 main_~i~0)} havoc #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:03,450 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 [2020-07-10 20:23:03,450 INFO L280 TraceCheckUtils]: 61: Hoare triple {6184#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6184#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:03,450 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 [2020-07-10 20:23:03,451 INFO L280 TraceCheckUtils]: 63: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-10 20:23:03,451 INFO L280 TraceCheckUtils]: 64: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-10 20:23:03,451 INFO L280 TraceCheckUtils]: 65: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-10 20:23:03,452 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:03,452 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 [2020-07-10 20:23:03,453 INFO L280 TraceCheckUtils]: 68: Hoare triple {6189#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {6190#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:03,454 INFO L280 TraceCheckUtils]: 69: Hoare triple {6190#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {6155#false} is VALID [2020-07-10 20:23:03,454 INFO L280 TraceCheckUtils]: 70: Hoare triple {6155#false} assume !false; {6155#false} is VALID [2020-07-10 20:23:03,458 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-10 20:23:03,458 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:03,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332901509] [2020-07-10 20:23:03,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:03,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 20:23:03,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282558036] [2020-07-10 20:23:03,462 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-10 20:23:03,462 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:03,462 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 20:23:03,520 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:03,521 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 20:23:03,521 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:03,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 20:23:03,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-10 20:23:03,522 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand 7 states. [2020-07-10 20:23:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:04,756 INFO L93 Difference]: Finished difference Result 210 states and 280 transitions. [2020-07-10 20:23:04,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 20:23:04,756 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-10 20:23:04,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:04,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:04,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-10 20:23:04,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:04,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-10 20:23:04,765 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 173 transitions. [2020-07-10 20:23:04,953 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:04,960 INFO L225 Difference]: With dead ends: 210 [2020-07-10 20:23:04,960 INFO L226 Difference]: Without dead ends: 206 [2020-07-10 20:23:04,961 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 [2020-07-10 20:23:04,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-10 20:23:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2020-07-10 20:23:05,353 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:05,353 INFO L82 GeneralOperation]: Start isEquivalent. First operand 206 states. Second operand 188 states. [2020-07-10 20:23:05,353 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 188 states. [2020-07-10 20:23:05,353 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 188 states. [2020-07-10 20:23:05,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:05,362 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-10 20:23:05,362 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-10 20:23:05,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:05,364 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:05,364 INFO L74 IsIncluded]: Start isIncluded. First operand 188 states. Second operand 206 states. [2020-07-10 20:23:05,364 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 206 states. [2020-07-10 20:23:05,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:05,372 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-10 20:23:05,372 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-10 20:23:05,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:05,374 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:05,374 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:05,374 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:05,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-10 20:23:05,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2020-07-10 20:23:05,381 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 71 [2020-07-10 20:23:05,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:05,381 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2020-07-10 20:23:05,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 20:23:05,381 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 188 states and 249 transitions. [2020-07-10 20:23:05,734 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 249 edges. 249 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2020-07-10 20:23:05,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-10 20:23:05,736 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:05,736 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] [2020-07-10 20:23:05,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-10 20:23:05,736 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:05,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:05,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1528474552, now seen corresponding path program 1 times [2020-07-10 20:23:05,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:05,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694723532] [2020-07-10 20:23:05,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,885 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,885 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-10 20:23:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,899 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,899 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,900 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,900 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 [2020-07-10 20:23:05,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,906 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,906 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,907 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,908 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 [2020-07-10 20:23:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,915 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,915 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,915 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,916 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 [2020-07-10 20:23:05,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,920 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,921 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,921 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,921 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 [2020-07-10 20:23:05,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,936 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,936 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,937 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,937 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 [2020-07-10 20:23:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,943 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,944 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,944 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,945 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 [2020-07-10 20:23:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,950 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,951 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,951 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,952 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 [2020-07-10 20:23:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:05,956 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,956 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,957 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,957 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 [2020-07-10 20:23:05,958 INFO L263 TraceCheckUtils]: 0: Hoare triple {7407#true} call ULTIMATE.init(); {7407#true} is VALID [2020-07-10 20:23:05,958 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,958 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-10 20:23:05,958 INFO L263 TraceCheckUtils]: 3: Hoare triple {7407#true} call #t~ret10 := main(); {7407#true} is VALID [2020-07-10 20:23:05,958 INFO L280 TraceCheckUtils]: 4: Hoare triple {7407#true} havoc ~len~0; {7407#true} is VALID [2020-07-10 20:23:05,959 INFO L280 TraceCheckUtils]: 5: Hoare triple {7407#true} havoc ~i~0; {7407#true} is VALID [2020-07-10 20:23:05,959 INFO L280 TraceCheckUtils]: 6: Hoare triple {7407#true} havoc ~j~0; {7407#true} is VALID [2020-07-10 20:23:05,959 INFO L280 TraceCheckUtils]: 7: Hoare triple {7407#true} havoc ~bufsize~0; {7407#true} is VALID [2020-07-10 20:23:05,959 INFO L280 TraceCheckUtils]: 8: Hoare triple {7407#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {7407#true} is VALID [2020-07-10 20:23:05,960 INFO L280 TraceCheckUtils]: 9: Hoare triple {7407#true} ~bufsize~0 := #t~nondet0; {7407#true} is VALID [2020-07-10 20:23:05,960 INFO L280 TraceCheckUtils]: 10: Hoare triple {7407#true} havoc #t~nondet0; {7407#true} is VALID [2020-07-10 20:23:05,960 INFO L280 TraceCheckUtils]: 11: Hoare triple {7407#true} assume !(~bufsize~0 < 0); {7407#true} is VALID [2020-07-10 20:23:05,960 INFO L280 TraceCheckUtils]: 12: Hoare triple {7407#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {7407#true} is VALID [2020-07-10 20:23:05,960 INFO L280 TraceCheckUtils]: 13: Hoare triple {7407#true} ~len~0 := #t~nondet1; {7407#true} is VALID [2020-07-10 20:23:05,960 INFO L280 TraceCheckUtils]: 14: Hoare triple {7407#true} havoc #t~nondet1; {7407#true} is VALID [2020-07-10 20:23:05,961 INFO L280 TraceCheckUtils]: 15: Hoare triple {7407#true} ~limit~0 := ~bufsize~0 - 4; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-10 20:23:05,962 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 [2020-07-10 20:23:05,962 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 [2020-07-10 20:23:05,963 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 [2020-07-10 20:23:05,964 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 [2020-07-10 20:23:05,964 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 [2020-07-10 20:23:05,964 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 [2020-07-10 20:23:05,965 INFO L280 TraceCheckUtils]: 22: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,965 INFO L280 TraceCheckUtils]: 23: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,965 INFO L280 TraceCheckUtils]: 24: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,966 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 [2020-07-10 20:23:05,966 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 [2020-07-10 20:23:05,966 INFO L280 TraceCheckUtils]: 27: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,966 INFO L280 TraceCheckUtils]: 28: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,966 INFO L280 TraceCheckUtils]: 29: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,967 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 [2020-07-10 20:23:05,968 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 [2020-07-10 20:23:05,968 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 [2020-07-10 20:23:05,969 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 [2020-07-10 20:23:05,969 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 [2020-07-10 20:23:05,969 INFO L280 TraceCheckUtils]: 35: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,969 INFO L280 TraceCheckUtils]: 36: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,969 INFO L280 TraceCheckUtils]: 37: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,970 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 [2020-07-10 20:23:05,970 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 [2020-07-10 20:23:05,971 INFO L280 TraceCheckUtils]: 40: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,971 INFO L280 TraceCheckUtils]: 41: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,971 INFO L280 TraceCheckUtils]: 42: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,972 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 [2020-07-10 20:23:05,972 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 [2020-07-10 20:23:05,972 INFO L280 TraceCheckUtils]: 45: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,972 INFO L280 TraceCheckUtils]: 46: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,973 INFO L280 TraceCheckUtils]: 47: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,974 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 [2020-07-10 20:23:05,974 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 [2020-07-10 20:23:05,974 INFO L280 TraceCheckUtils]: 50: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,974 INFO L280 TraceCheckUtils]: 51: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,974 INFO L280 TraceCheckUtils]: 52: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,975 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 [2020-07-10 20:23:05,976 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 [2020-07-10 20:23:05,977 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 [2020-07-10 20:23:05,978 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 [2020-07-10 20:23:05,979 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 [2020-07-10 20:23:05,980 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 [2020-07-10 20:23:05,981 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 [2020-07-10 20:23:05,982 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 [2020-07-10 20:23:05,982 INFO L280 TraceCheckUtils]: 61: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,982 INFO L280 TraceCheckUtils]: 62: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,982 INFO L280 TraceCheckUtils]: 63: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,983 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 [2020-07-10 20:23:05,983 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 [2020-07-10 20:23:05,984 INFO L280 TraceCheckUtils]: 66: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-10 20:23:05,984 INFO L280 TraceCheckUtils]: 67: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-10 20:23:05,984 INFO L280 TraceCheckUtils]: 68: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-10 20:23:05,985 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 [2020-07-10 20:23:05,987 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 [2020-07-10 20:23:05,988 INFO L280 TraceCheckUtils]: 71: Hoare triple {7447#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {7448#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:05,990 INFO L280 TraceCheckUtils]: 72: Hoare triple {7448#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {7408#false} is VALID [2020-07-10 20:23:05,991 INFO L280 TraceCheckUtils]: 73: Hoare triple {7408#false} assume !false; {7408#false} is VALID [2020-07-10 20:23:05,995 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-10 20:23:05,996 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:05,996 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694723532] [2020-07-10 20:23:05,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:05,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-10 20:23:05,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463184352] [2020-07-10 20:23:05,997 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-10 20:23:05,997 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:05,997 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-10 20:23:06,057 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:06,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-10 20:23:06,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:06,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-10 20:23:06,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-10 20:23:06,058 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand 8 states. [2020-07-10 20:23:07,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:07,210 INFO L93 Difference]: Finished difference Result 194 states and 254 transitions. [2020-07-10 20:23:07,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-10 20:23:07,210 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-10 20:23:07,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:07,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-10 20:23:07,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-10 20:23:07,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-10 20:23:07,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-10 20:23:07,227 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 91 transitions. [2020-07-10 20:23:07,349 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:07,356 INFO L225 Difference]: With dead ends: 194 [2020-07-10 20:23:07,357 INFO L226 Difference]: Without dead ends: 192 [2020-07-10 20:23:07,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-07-10 20:23:07,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-10 20:23:07,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-10 20:23:07,747 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:07,747 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-10 20:23:07,747 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-10 20:23:07,747 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-10 20:23:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:07,755 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-10 20:23:07,755 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-10 20:23:07,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:07,756 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:07,756 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-10 20:23:07,756 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-10 20:23:07,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:07,763 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-10 20:23:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-10 20:23:07,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:07,765 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:07,765 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:07,765 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:07,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-10 20:23:07,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2020-07-10 20:23:07,772 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 74 [2020-07-10 20:23:07,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:07,772 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2020-07-10 20:23:07,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-10 20:23:07,773 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 192 states and 252 transitions. [2020-07-10 20:23:08,138 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 252 edges. 252 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:08,138 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-10 20:23:08,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-10 20:23:08,139 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:08,140 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] [2020-07-10 20:23:08,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-10 20:23:08,140 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:08,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:08,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1530703596, now seen corresponding path program 1 times [2020-07-10 20:23:08,141 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:08,141 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [508440413] [2020-07-10 20:23:08,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,222 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,222 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-10 20:23:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,239 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,239 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,240 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,240 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,245 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,245 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,245 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,246 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,254 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,254 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,254 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,258 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,263 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,263 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,263 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,264 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,272 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,272 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,272 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,274 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,279 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,279 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,279 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,280 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,286 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,286 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,286 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,287 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,293 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,293 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,293 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,294 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:08,302 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,302 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,302 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,303 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,304 INFO L263 TraceCheckUtils]: 0: Hoare triple {8617#true} call ULTIMATE.init(); {8617#true} is VALID [2020-07-10 20:23:08,304 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,304 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-10 20:23:08,304 INFO L263 TraceCheckUtils]: 3: Hoare triple {8617#true} call #t~ret10 := main(); {8617#true} is VALID [2020-07-10 20:23:08,305 INFO L280 TraceCheckUtils]: 4: Hoare triple {8617#true} havoc ~len~0; {8617#true} is VALID [2020-07-10 20:23:08,305 INFO L280 TraceCheckUtils]: 5: Hoare triple {8617#true} havoc ~i~0; {8617#true} is VALID [2020-07-10 20:23:08,305 INFO L280 TraceCheckUtils]: 6: Hoare triple {8617#true} havoc ~j~0; {8617#true} is VALID [2020-07-10 20:23:08,305 INFO L280 TraceCheckUtils]: 7: Hoare triple {8617#true} havoc ~bufsize~0; {8617#true} is VALID [2020-07-10 20:23:08,306 INFO L280 TraceCheckUtils]: 8: Hoare triple {8617#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {8617#true} is VALID [2020-07-10 20:23:08,306 INFO L280 TraceCheckUtils]: 9: Hoare triple {8617#true} ~bufsize~0 := #t~nondet0; {8617#true} is VALID [2020-07-10 20:23:08,306 INFO L280 TraceCheckUtils]: 10: Hoare triple {8617#true} havoc #t~nondet0; {8617#true} is VALID [2020-07-10 20:23:08,306 INFO L280 TraceCheckUtils]: 11: Hoare triple {8617#true} assume !(~bufsize~0 < 0); {8617#true} is VALID [2020-07-10 20:23:08,306 INFO L280 TraceCheckUtils]: 12: Hoare triple {8617#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {8617#true} is VALID [2020-07-10 20:23:08,307 INFO L280 TraceCheckUtils]: 13: Hoare triple {8617#true} ~len~0 := #t~nondet1; {8617#true} is VALID [2020-07-10 20:23:08,307 INFO L280 TraceCheckUtils]: 14: Hoare triple {8617#true} havoc #t~nondet1; {8617#true} is VALID [2020-07-10 20:23:08,307 INFO L280 TraceCheckUtils]: 15: Hoare triple {8617#true} ~limit~0 := ~bufsize~0 - 4; {8617#true} is VALID [2020-07-10 20:23:08,307 INFO L280 TraceCheckUtils]: 16: Hoare triple {8617#true} ~i~0 := 0; {8617#true} is VALID [2020-07-10 20:23:08,307 INFO L280 TraceCheckUtils]: 17: Hoare triple {8617#true} assume !!(~i~0 < ~len~0); {8617#true} is VALID [2020-07-10 20:23:08,308 INFO L280 TraceCheckUtils]: 18: Hoare triple {8617#true} ~j~0 := 0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,309 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 [2020-07-10 20:23:08,309 INFO L280 TraceCheckUtils]: 20: Hoare triple {8621#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,310 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 [2020-07-10 20:23:08,310 INFO L280 TraceCheckUtils]: 22: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,310 INFO L280 TraceCheckUtils]: 23: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,310 INFO L280 TraceCheckUtils]: 24: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,311 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,311 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 [2020-07-10 20:23:08,312 INFO L280 TraceCheckUtils]: 27: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,312 INFO L280 TraceCheckUtils]: 28: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,312 INFO L280 TraceCheckUtils]: 29: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,313 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,314 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 [2020-07-10 20:23:08,314 INFO L280 TraceCheckUtils]: 32: Hoare triple {8621#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,315 INFO L280 TraceCheckUtils]: 33: Hoare triple {8621#(<= 0 main_~j~0)} havoc #t~nondet2; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,315 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 [2020-07-10 20:23:08,315 INFO L280 TraceCheckUtils]: 35: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,315 INFO L280 TraceCheckUtils]: 36: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,316 INFO L280 TraceCheckUtils]: 37: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,317 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,317 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 [2020-07-10 20:23:08,317 INFO L280 TraceCheckUtils]: 40: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,317 INFO L280 TraceCheckUtils]: 41: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,318 INFO L280 TraceCheckUtils]: 42: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,318 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,319 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 [2020-07-10 20:23:08,319 INFO L280 TraceCheckUtils]: 45: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,319 INFO L280 TraceCheckUtils]: 46: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,319 INFO L280 TraceCheckUtils]: 47: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,320 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,321 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 [2020-07-10 20:23:08,321 INFO L280 TraceCheckUtils]: 50: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,321 INFO L280 TraceCheckUtils]: 51: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,321 INFO L280 TraceCheckUtils]: 52: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,322 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:08,323 INFO L280 TraceCheckUtils]: 54: Hoare triple {8621#(<= 0 main_~j~0)} #t~post3 := ~j~0; {8646#(<= 0 |main_#t~post3|)} is VALID [2020-07-10 20:23:08,324 INFO L280 TraceCheckUtils]: 55: Hoare triple {8646#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,324 INFO L280 TraceCheckUtils]: 56: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,325 INFO L280 TraceCheckUtils]: 57: Hoare triple {8647#(<= 1 main_~j~0)} #t~post4 := ~i~0; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,326 INFO L280 TraceCheckUtils]: 58: Hoare triple {8647#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,326 INFO L280 TraceCheckUtils]: 59: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,326 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 [2020-07-10 20:23:08,327 INFO L280 TraceCheckUtils]: 61: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,327 INFO L280 TraceCheckUtils]: 62: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,327 INFO L280 TraceCheckUtils]: 63: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,328 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,328 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 [2020-07-10 20:23:08,328 INFO L280 TraceCheckUtils]: 66: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,328 INFO L280 TraceCheckUtils]: 67: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,328 INFO L280 TraceCheckUtils]: 68: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,329 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,330 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 [2020-07-10 20:23:08,330 INFO L280 TraceCheckUtils]: 71: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-10 20:23:08,330 INFO L280 TraceCheckUtils]: 72: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-10 20:23:08,330 INFO L280 TraceCheckUtils]: 73: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-10 20:23:08,331 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:08,332 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 [2020-07-10 20:23:08,333 INFO L280 TraceCheckUtils]: 76: Hoare triple {8660#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {8661#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:08,333 INFO L280 TraceCheckUtils]: 77: Hoare triple {8661#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {8618#false} is VALID [2020-07-10 20:23:08,334 INFO L280 TraceCheckUtils]: 78: Hoare triple {8618#false} assume !false; {8618#false} is VALID [2020-07-10 20:23:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-10 20:23:08,340 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:08,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [508440413] [2020-07-10 20:23:08,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:08,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 20:23:08,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132946129] [2020-07-10 20:23:08,341 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-10 20:23:08,342 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:08,342 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 20:23:08,406 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:08,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 20:23:08,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:08,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 20:23:08,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-10 20:23:08,408 INFO L87 Difference]: Start difference. First operand 192 states and 252 transitions. Second operand 7 states. [2020-07-10 20:23:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:09,566 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2020-07-10 20:23:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 20:23:09,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-10 20:23:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:09,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:09,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-10 20:23:09,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:09,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-10 20:23:09,572 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 140 transitions. [2020-07-10 20:23:09,720 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 140 edges. 140 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:09,726 INFO L225 Difference]: With dead ends: 220 [2020-07-10 20:23:09,726 INFO L226 Difference]: Without dead ends: 218 [2020-07-10 20:23:09,727 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 [2020-07-10 20:23:09,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-10 20:23:10,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2020-07-10 20:23:10,174 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:10,174 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 206 states. [2020-07-10 20:23:10,174 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 206 states. [2020-07-10 20:23:10,174 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 206 states. [2020-07-10 20:23:10,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:10,182 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-10 20:23:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-10 20:23:10,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:10,184 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:10,184 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 218 states. [2020-07-10 20:23:10,184 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 218 states. [2020-07-10 20:23:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:10,192 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-10 20:23:10,192 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-10 20:23:10,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:10,194 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:10,194 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:10,194 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:10,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-10 20:23:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-10 20:23:10,201 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 79 [2020-07-10 20:23:10,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:10,201 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-10 20:23:10,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 20:23:10,202 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 206 states and 269 transitions. [2020-07-10 20:23:10,619 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-10 20:23:10,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-10 20:23:10,621 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:10,621 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] [2020-07-10 20:23:10,621 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-10 20:23:10,621 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:10,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:10,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1064000984, now seen corresponding path program 1 times [2020-07-10 20:23:10,622 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:10,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1121660824] [2020-07-10 20:23:10,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,762 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,762 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-10 20:23:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,766 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,767 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,767 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,768 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,772 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,773 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,773 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,774 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,779 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,779 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,779 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,780 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,784 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,785 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,785 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,786 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,790 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,790 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,790 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,791 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,795 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,796 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,796 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,797 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,801 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,802 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,802 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,803 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,807 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,807 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,807 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,808 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:10,815 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,815 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,815 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,816 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,817 INFO L263 TraceCheckUtils]: 0: Hoare triple {9958#true} call ULTIMATE.init(); {9958#true} is VALID [2020-07-10 20:23:10,817 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,817 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-10 20:23:10,817 INFO L263 TraceCheckUtils]: 3: Hoare triple {9958#true} call #t~ret10 := main(); {9958#true} is VALID [2020-07-10 20:23:10,817 INFO L280 TraceCheckUtils]: 4: Hoare triple {9958#true} havoc ~len~0; {9958#true} is VALID [2020-07-10 20:23:10,818 INFO L280 TraceCheckUtils]: 5: Hoare triple {9958#true} havoc ~i~0; {9958#true} is VALID [2020-07-10 20:23:10,818 INFO L280 TraceCheckUtils]: 6: Hoare triple {9958#true} havoc ~j~0; {9958#true} is VALID [2020-07-10 20:23:10,818 INFO L280 TraceCheckUtils]: 7: Hoare triple {9958#true} havoc ~bufsize~0; {9958#true} is VALID [2020-07-10 20:23:10,818 INFO L280 TraceCheckUtils]: 8: Hoare triple {9958#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9958#true} is VALID [2020-07-10 20:23:10,818 INFO L280 TraceCheckUtils]: 9: Hoare triple {9958#true} ~bufsize~0 := #t~nondet0; {9958#true} is VALID [2020-07-10 20:23:10,819 INFO L280 TraceCheckUtils]: 10: Hoare triple {9958#true} havoc #t~nondet0; {9958#true} is VALID [2020-07-10 20:23:10,819 INFO L280 TraceCheckUtils]: 11: Hoare triple {9958#true} assume !(~bufsize~0 < 0); {9958#true} is VALID [2020-07-10 20:23:10,819 INFO L280 TraceCheckUtils]: 12: Hoare triple {9958#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9958#true} is VALID [2020-07-10 20:23:10,819 INFO L280 TraceCheckUtils]: 13: Hoare triple {9958#true} ~len~0 := #t~nondet1; {9958#true} is VALID [2020-07-10 20:23:10,819 INFO L280 TraceCheckUtils]: 14: Hoare triple {9958#true} havoc #t~nondet1; {9958#true} is VALID [2020-07-10 20:23:10,820 INFO L280 TraceCheckUtils]: 15: Hoare triple {9958#true} ~limit~0 := ~bufsize~0 - 4; {9958#true} is VALID [2020-07-10 20:23:10,820 INFO L280 TraceCheckUtils]: 16: Hoare triple {9958#true} ~i~0 := 0; {9958#true} is VALID [2020-07-10 20:23:10,820 INFO L280 TraceCheckUtils]: 17: Hoare triple {9958#true} assume !!(~i~0 < ~len~0); {9958#true} is VALID [2020-07-10 20:23:10,821 INFO L280 TraceCheckUtils]: 18: Hoare triple {9958#true} ~j~0 := 0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,821 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 [2020-07-10 20:23:10,822 INFO L280 TraceCheckUtils]: 20: Hoare triple {9962#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,822 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 [2020-07-10 20:23:10,822 INFO L280 TraceCheckUtils]: 22: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,823 INFO L280 TraceCheckUtils]: 23: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,823 INFO L280 TraceCheckUtils]: 24: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,824 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,824 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 [2020-07-10 20:23:10,824 INFO L280 TraceCheckUtils]: 27: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,824 INFO L280 TraceCheckUtils]: 28: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,825 INFO L280 TraceCheckUtils]: 29: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,825 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,826 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 [2020-07-10 20:23:10,826 INFO L280 TraceCheckUtils]: 32: Hoare triple {9962#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,827 INFO L280 TraceCheckUtils]: 33: Hoare triple {9962#(<= 0 main_~j~0)} havoc #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,827 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 [2020-07-10 20:23:10,827 INFO L280 TraceCheckUtils]: 35: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,828 INFO L280 TraceCheckUtils]: 36: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,828 INFO L280 TraceCheckUtils]: 37: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,829 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,829 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 [2020-07-10 20:23:10,829 INFO L280 TraceCheckUtils]: 40: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,829 INFO L280 TraceCheckUtils]: 41: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,830 INFO L280 TraceCheckUtils]: 42: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,830 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,831 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 [2020-07-10 20:23:10,831 INFO L280 TraceCheckUtils]: 45: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,831 INFO L280 TraceCheckUtils]: 46: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,831 INFO L280 TraceCheckUtils]: 47: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,832 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,832 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 [2020-07-10 20:23:10,832 INFO L280 TraceCheckUtils]: 50: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,833 INFO L280 TraceCheckUtils]: 51: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,833 INFO L280 TraceCheckUtils]: 52: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,834 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:10,834 INFO L280 TraceCheckUtils]: 54: Hoare triple {9962#(<= 0 main_~j~0)} #t~post8 := ~j~0; {9987#(<= 0 |main_#t~post8|)} is VALID [2020-07-10 20:23:10,835 INFO L280 TraceCheckUtils]: 55: Hoare triple {9987#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,836 INFO L280 TraceCheckUtils]: 56: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,837 INFO L280 TraceCheckUtils]: 57: Hoare triple {9988#(<= 1 main_~j~0)} #t~post9 := ~i~0; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,837 INFO L280 TraceCheckUtils]: 58: Hoare triple {9988#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,838 INFO L280 TraceCheckUtils]: 59: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,838 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 [2020-07-10 20:23:10,839 INFO L280 TraceCheckUtils]: 61: Hoare triple {9988#(<= 1 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,839 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 [2020-07-10 20:23:10,839 INFO L280 TraceCheckUtils]: 63: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,839 INFO L280 TraceCheckUtils]: 64: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,839 INFO L280 TraceCheckUtils]: 65: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,840 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,840 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 [2020-07-10 20:23:10,841 INFO L280 TraceCheckUtils]: 68: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,841 INFO L280 TraceCheckUtils]: 69: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,841 INFO L280 TraceCheckUtils]: 70: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,842 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,842 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 [2020-07-10 20:23:10,842 INFO L280 TraceCheckUtils]: 73: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-10 20:23:10,842 INFO L280 TraceCheckUtils]: 74: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-10 20:23:10,842 INFO L280 TraceCheckUtils]: 75: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-10 20:23:10,843 INFO L275 TraceCheckUtils]: 76: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:10,844 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 [2020-07-10 20:23:10,845 INFO L280 TraceCheckUtils]: 78: Hoare triple {10001#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {10002#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:10,845 INFO L280 TraceCheckUtils]: 79: Hoare triple {10002#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {9959#false} is VALID [2020-07-10 20:23:10,845 INFO L280 TraceCheckUtils]: 80: Hoare triple {9959#false} assume !false; {9959#false} is VALID [2020-07-10 20:23:10,850 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-10 20:23:10,851 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:10,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1121660824] [2020-07-10 20:23:10,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:10,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-10 20:23:10,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832097025] [2020-07-10 20:23:10,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-10 20:23:10,852 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:10,853 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-10 20:23:10,917 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:10,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-10 20:23:10,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:10,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-10 20:23:10,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-10 20:23:10,918 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 7 states. [2020-07-10 20:23:12,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:12,203 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2020-07-10 20:23:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-10 20:23:12,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-10 20:23:12,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:12,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-10 20:23:12,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-10 20:23:12,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-10 20:23:12,213 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 165 transitions. [2020-07-10 20:23:12,394 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:12,403 INFO L225 Difference]: With dead ends: 252 [2020-07-10 20:23:12,403 INFO L226 Difference]: Without dead ends: 246 [2020-07-10 20:23:12,404 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 [2020-07-10 20:23:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-10 20:23:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2020-07-10 20:23:12,927 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:12,927 INFO L82 GeneralOperation]: Start isEquivalent. First operand 246 states. Second operand 230 states. [2020-07-10 20:23:12,927 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 230 states. [2020-07-10 20:23:12,927 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 230 states. [2020-07-10 20:23:12,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:12,937 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-10 20:23:12,938 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-10 20:23:12,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:12,939 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:12,940 INFO L74 IsIncluded]: Start isIncluded. First operand 230 states. Second operand 246 states. [2020-07-10 20:23:12,940 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 246 states. [2020-07-10 20:23:12,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:12,949 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-10 20:23:12,949 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-10 20:23:12,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:12,951 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:12,951 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:12,951 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:12,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-10 20:23:12,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2020-07-10 20:23:12,960 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 81 [2020-07-10 20:23:12,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:12,960 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2020-07-10 20:23:12,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-10 20:23:12,961 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 230 states and 302 transitions. [2020-07-10 20:23:13,434 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 302 edges. 302 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:13,435 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2020-07-10 20:23:13,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-10 20:23:13,436 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:13,436 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] [2020-07-10 20:23:13,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-10 20:23:13,437 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:13,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:13,437 INFO L82 PathProgramCache]: Analyzing trace with hash -895183749, now seen corresponding path program 1 times [2020-07-10 20:23:13,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:13,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [83087301] [2020-07-10 20:23:13,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,579 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,579 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-10 20:23:13,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,584 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,584 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,584 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,585 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 [2020-07-10 20:23:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,591 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,591 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,591 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,595 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 [2020-07-10 20:23:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,604 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,604 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,605 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 [2020-07-10 20:23:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,609 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,610 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,610 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,614 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 [2020-07-10 20:23:13,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,625 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,626 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,626 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,627 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 [2020-07-10 20:23:13,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,630 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,631 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,631 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,632 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 [2020-07-10 20:23:13,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,637 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,637 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,637 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,638 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 [2020-07-10 20:23:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,642 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,642 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,642 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,643 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 [2020-07-10 20:23:13,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,647 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,648 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,648 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,649 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 [2020-07-10 20:23:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:13,655 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,655 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,656 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,657 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 [2020-07-10 20:23:13,657 INFO L263 TraceCheckUtils]: 0: Hoare triple {11467#true} call ULTIMATE.init(); {11467#true} is VALID [2020-07-10 20:23:13,657 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,657 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-10 20:23:13,657 INFO L263 TraceCheckUtils]: 3: Hoare triple {11467#true} call #t~ret10 := main(); {11467#true} is VALID [2020-07-10 20:23:13,658 INFO L280 TraceCheckUtils]: 4: Hoare triple {11467#true} havoc ~len~0; {11467#true} is VALID [2020-07-10 20:23:13,658 INFO L280 TraceCheckUtils]: 5: Hoare triple {11467#true} havoc ~i~0; {11467#true} is VALID [2020-07-10 20:23:13,658 INFO L280 TraceCheckUtils]: 6: Hoare triple {11467#true} havoc ~j~0; {11467#true} is VALID [2020-07-10 20:23:13,658 INFO L280 TraceCheckUtils]: 7: Hoare triple {11467#true} havoc ~bufsize~0; {11467#true} is VALID [2020-07-10 20:23:13,658 INFO L280 TraceCheckUtils]: 8: Hoare triple {11467#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {11467#true} is VALID [2020-07-10 20:23:13,659 INFO L280 TraceCheckUtils]: 9: Hoare triple {11467#true} ~bufsize~0 := #t~nondet0; {11467#true} is VALID [2020-07-10 20:23:13,659 INFO L280 TraceCheckUtils]: 10: Hoare triple {11467#true} havoc #t~nondet0; {11467#true} is VALID [2020-07-10 20:23:13,659 INFO L280 TraceCheckUtils]: 11: Hoare triple {11467#true} assume !(~bufsize~0 < 0); {11467#true} is VALID [2020-07-10 20:23:13,659 INFO L280 TraceCheckUtils]: 12: Hoare triple {11467#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {11467#true} is VALID [2020-07-10 20:23:13,659 INFO L280 TraceCheckUtils]: 13: Hoare triple {11467#true} ~len~0 := #t~nondet1; {11467#true} is VALID [2020-07-10 20:23:13,660 INFO L280 TraceCheckUtils]: 14: Hoare triple {11467#true} havoc #t~nondet1; {11467#true} is VALID [2020-07-10 20:23:13,660 INFO L280 TraceCheckUtils]: 15: Hoare triple {11467#true} ~limit~0 := ~bufsize~0 - 4; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-10 20:23:13,661 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 [2020-07-10 20:23:13,662 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 [2020-07-10 20:23:13,662 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 [2020-07-10 20:23:13,663 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 [2020-07-10 20:23:13,664 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 [2020-07-10 20:23:13,664 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 [2020-07-10 20:23:13,664 INFO L280 TraceCheckUtils]: 22: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,664 INFO L280 TraceCheckUtils]: 23: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,665 INFO L280 TraceCheckUtils]: 24: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,665 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 [2020-07-10 20:23:13,666 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 [2020-07-10 20:23:13,666 INFO L280 TraceCheckUtils]: 27: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,666 INFO L280 TraceCheckUtils]: 28: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,666 INFO L280 TraceCheckUtils]: 29: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,667 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 [2020-07-10 20:23:13,668 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 [2020-07-10 20:23:13,668 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 [2020-07-10 20:23:13,669 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 [2020-07-10 20:23:13,669 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 [2020-07-10 20:23:13,669 INFO L280 TraceCheckUtils]: 35: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,669 INFO L280 TraceCheckUtils]: 36: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,670 INFO L280 TraceCheckUtils]: 37: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,671 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 [2020-07-10 20:23:13,671 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 [2020-07-10 20:23:13,671 INFO L280 TraceCheckUtils]: 40: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,671 INFO L280 TraceCheckUtils]: 41: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,671 INFO L280 TraceCheckUtils]: 42: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,672 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 [2020-07-10 20:23:13,672 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 [2020-07-10 20:23:13,673 INFO L280 TraceCheckUtils]: 45: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,673 INFO L280 TraceCheckUtils]: 46: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,673 INFO L280 TraceCheckUtils]: 47: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,674 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 [2020-07-10 20:23:13,674 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 [2020-07-10 20:23:13,674 INFO L280 TraceCheckUtils]: 50: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,674 INFO L280 TraceCheckUtils]: 51: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,675 INFO L280 TraceCheckUtils]: 52: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,675 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 [2020-07-10 20:23:13,676 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 [2020-07-10 20:23:13,677 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 [2020-07-10 20:23:13,678 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 [2020-07-10 20:23:13,678 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 [2020-07-10 20:23:13,679 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 [2020-07-10 20:23:13,679 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 [2020-07-10 20:23:13,680 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 [2020-07-10 20:23:13,680 INFO L280 TraceCheckUtils]: 61: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,680 INFO L280 TraceCheckUtils]: 62: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,680 INFO L280 TraceCheckUtils]: 63: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,681 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 [2020-07-10 20:23:13,682 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 [2020-07-10 20:23:13,682 INFO L280 TraceCheckUtils]: 66: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,682 INFO L280 TraceCheckUtils]: 67: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,682 INFO L280 TraceCheckUtils]: 68: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,683 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 [2020-07-10 20:23:13,683 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 [2020-07-10 20:23:13,684 INFO L280 TraceCheckUtils]: 71: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,684 INFO L280 TraceCheckUtils]: 72: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,684 INFO L280 TraceCheckUtils]: 73: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,685 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 [2020-07-10 20:23:13,685 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 [2020-07-10 20:23:13,685 INFO L280 TraceCheckUtils]: 76: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-10 20:23:13,685 INFO L280 TraceCheckUtils]: 77: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-10 20:23:13,686 INFO L280 TraceCheckUtils]: 78: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-10 20:23:13,686 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 [2020-07-10 20:23:13,687 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 [2020-07-10 20:23:13,688 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 [2020-07-10 20:23:13,688 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 [2020-07-10 20:23:13,689 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 [2020-07-10 20:23:13,690 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 [2020-07-10 20:23:13,690 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 [2020-07-10 20:23:13,691 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 [2020-07-10 20:23:13,692 INFO L280 TraceCheckUtils]: 87: Hoare triple {11517#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {11518#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:13,692 INFO L280 TraceCheckUtils]: 88: Hoare triple {11518#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {11468#false} is VALID [2020-07-10 20:23:13,693 INFO L280 TraceCheckUtils]: 89: Hoare triple {11468#false} assume !false; {11468#false} is VALID [2020-07-10 20:23:13,702 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-10 20:23:13,702 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:13,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [83087301] [2020-07-10 20:23:13,703 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:13,703 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-10 20:23:13,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900536816] [2020-07-10 20:23:13,704 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-10 20:23:13,704 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:13,704 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-10 20:23:13,787 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:13,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-10 20:23:13,787 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:13,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-10 20:23:13,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-10 20:23:13,788 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand 10 states. [2020-07-10 20:23:15,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:15,340 INFO L93 Difference]: Finished difference Result 236 states and 307 transitions. [2020-07-10 20:23:15,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-10 20:23:15,340 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-10 20:23:15,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:15,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 20:23:15,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-10 20:23:15,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-10 20:23:15,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-10 20:23:15,344 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 91 transitions. [2020-07-10 20:23:15,464 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:15,470 INFO L225 Difference]: With dead ends: 236 [2020-07-10 20:23:15,471 INFO L226 Difference]: Without dead ends: 234 [2020-07-10 20:23:15,471 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 [2020-07-10 20:23:15,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-10 20:23:16,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-07-10 20:23:16,005 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:16,006 INFO L82 GeneralOperation]: Start isEquivalent. First operand 234 states. Second operand 234 states. [2020-07-10 20:23:16,006 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-10 20:23:16,006 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-10 20:23:16,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:16,015 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-10 20:23:16,015 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-10 20:23:16,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:16,017 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:16,017 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-10 20:23:16,017 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-10 20:23:16,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:16,026 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-10 20:23:16,026 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-10 20:23:16,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:16,028 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:16,028 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:16,028 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:16,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-10 20:23:16,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2020-07-10 20:23:16,036 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 90 [2020-07-10 20:23:16,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:16,036 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2020-07-10 20:23:16,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-10 20:23:16,037 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 234 states and 305 transitions. [2020-07-10 20:23:16,581 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 305 edges. 305 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-10 20:23:16,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-10 20:23:16,583 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:16,584 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] [2020-07-10 20:23:16,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-10 20:23:16,584 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:16,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:16,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1272604239, now seen corresponding path program 1 times [2020-07-10 20:23:16,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:16,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700903575] [2020-07-10 20:23:16,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,703 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,704 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-10 20:23:16,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,708 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,708 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,709 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,713 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,713 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,713 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,714 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,717 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,718 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,718 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,719 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,723 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,723 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,723 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,724 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,728 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,728 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,728 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,729 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,733 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,733 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,733 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,734 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,738 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,738 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,738 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,739 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,743 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,743 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,743 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,744 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,748 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,748 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,749 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,753 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,753 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,753 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,754 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:16,758 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,758 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,758 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,759 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:16,759 INFO L263 TraceCheckUtils]: 0: Hoare triple {12945#true} call ULTIMATE.init(); {12945#true} is VALID [2020-07-10 20:23:16,760 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,760 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-10 20:23:16,760 INFO L263 TraceCheckUtils]: 3: Hoare triple {12945#true} call #t~ret10 := main(); {12945#true} is VALID [2020-07-10 20:23:16,760 INFO L280 TraceCheckUtils]: 4: Hoare triple {12945#true} havoc ~len~0; {12945#true} is VALID [2020-07-10 20:23:16,760 INFO L280 TraceCheckUtils]: 5: Hoare triple {12945#true} havoc ~i~0; {12945#true} is VALID [2020-07-10 20:23:16,761 INFO L280 TraceCheckUtils]: 6: Hoare triple {12945#true} havoc ~j~0; {12945#true} is VALID [2020-07-10 20:23:16,761 INFO L280 TraceCheckUtils]: 7: Hoare triple {12945#true} havoc ~bufsize~0; {12945#true} is VALID [2020-07-10 20:23:16,761 INFO L280 TraceCheckUtils]: 8: Hoare triple {12945#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12945#true} is VALID [2020-07-10 20:23:16,761 INFO L280 TraceCheckUtils]: 9: Hoare triple {12945#true} ~bufsize~0 := #t~nondet0; {12945#true} is VALID [2020-07-10 20:23:16,761 INFO L280 TraceCheckUtils]: 10: Hoare triple {12945#true} havoc #t~nondet0; {12945#true} is VALID [2020-07-10 20:23:16,761 INFO L280 TraceCheckUtils]: 11: Hoare triple {12945#true} assume !(~bufsize~0 < 0); {12945#true} is VALID [2020-07-10 20:23:16,762 INFO L280 TraceCheckUtils]: 12: Hoare triple {12945#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12945#true} is VALID [2020-07-10 20:23:16,762 INFO L280 TraceCheckUtils]: 13: Hoare triple {12945#true} ~len~0 := #t~nondet1; {12945#true} is VALID [2020-07-10 20:23:16,762 INFO L280 TraceCheckUtils]: 14: Hoare triple {12945#true} havoc #t~nondet1; {12945#true} is VALID [2020-07-10 20:23:16,762 INFO L280 TraceCheckUtils]: 15: Hoare triple {12945#true} ~limit~0 := ~bufsize~0 - 4; {12945#true} is VALID [2020-07-10 20:23:16,762 INFO L280 TraceCheckUtils]: 16: Hoare triple {12945#true} ~i~0 := 0; {12945#true} is VALID [2020-07-10 20:23:16,763 INFO L280 TraceCheckUtils]: 17: Hoare triple {12945#true} assume !!(~i~0 < ~len~0); {12945#true} is VALID [2020-07-10 20:23:16,763 INFO L280 TraceCheckUtils]: 18: Hoare triple {12945#true} ~j~0 := 0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,764 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 [2020-07-10 20:23:16,765 INFO L280 TraceCheckUtils]: 20: Hoare triple {12949#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,765 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 [2020-07-10 20:23:16,765 INFO L280 TraceCheckUtils]: 22: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,765 INFO L280 TraceCheckUtils]: 23: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,765 INFO L280 TraceCheckUtils]: 24: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,766 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,766 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 [2020-07-10 20:23:16,767 INFO L280 TraceCheckUtils]: 27: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,767 INFO L280 TraceCheckUtils]: 28: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,767 INFO L280 TraceCheckUtils]: 29: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,768 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,768 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 [2020-07-10 20:23:16,769 INFO L280 TraceCheckUtils]: 32: Hoare triple {12949#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,769 INFO L280 TraceCheckUtils]: 33: Hoare triple {12949#(<= 0 main_~j~0)} havoc #t~nondet2; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,770 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 [2020-07-10 20:23:16,770 INFO L280 TraceCheckUtils]: 35: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,770 INFO L280 TraceCheckUtils]: 36: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,770 INFO L280 TraceCheckUtils]: 37: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,771 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,771 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 [2020-07-10 20:23:16,771 INFO L280 TraceCheckUtils]: 40: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,771 INFO L280 TraceCheckUtils]: 41: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,772 INFO L280 TraceCheckUtils]: 42: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,772 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,772 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 [2020-07-10 20:23:16,773 INFO L280 TraceCheckUtils]: 45: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,773 INFO L280 TraceCheckUtils]: 46: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,773 INFO L280 TraceCheckUtils]: 47: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,774 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,774 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 [2020-07-10 20:23:16,774 INFO L280 TraceCheckUtils]: 50: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,774 INFO L280 TraceCheckUtils]: 51: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,774 INFO L280 TraceCheckUtils]: 52: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,775 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:16,776 INFO L280 TraceCheckUtils]: 54: Hoare triple {12949#(<= 0 main_~j~0)} #t~post3 := ~j~0; {12974#(<= 0 |main_#t~post3|)} is VALID [2020-07-10 20:23:16,777 INFO L280 TraceCheckUtils]: 55: Hoare triple {12974#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,777 INFO L280 TraceCheckUtils]: 56: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,778 INFO L280 TraceCheckUtils]: 57: Hoare triple {12975#(<= 1 main_~j~0)} #t~post4 := ~i~0; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,778 INFO L280 TraceCheckUtils]: 58: Hoare triple {12975#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,779 INFO L280 TraceCheckUtils]: 59: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,779 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 [2020-07-10 20:23:16,779 INFO L280 TraceCheckUtils]: 61: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,779 INFO L280 TraceCheckUtils]: 62: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,780 INFO L280 TraceCheckUtils]: 63: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,780 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,781 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 [2020-07-10 20:23:16,781 INFO L280 TraceCheckUtils]: 66: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,781 INFO L280 TraceCheckUtils]: 67: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,781 INFO L280 TraceCheckUtils]: 68: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,782 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,782 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 [2020-07-10 20:23:16,782 INFO L280 TraceCheckUtils]: 71: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,783 INFO L280 TraceCheckUtils]: 72: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,783 INFO L280 TraceCheckUtils]: 73: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,784 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,784 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 [2020-07-10 20:23:16,784 INFO L280 TraceCheckUtils]: 76: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,784 INFO L280 TraceCheckUtils]: 77: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,785 INFO L280 TraceCheckUtils]: 78: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,785 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:16,786 INFO L280 TraceCheckUtils]: 80: Hoare triple {12975#(<= 1 main_~j~0)} #t~post5 := ~j~0; {12992#(<= 1 |main_#t~post5|)} is VALID [2020-07-10 20:23:16,787 INFO L280 TraceCheckUtils]: 81: Hoare triple {12992#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:16,787 INFO L280 TraceCheckUtils]: 82: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:16,788 INFO L280 TraceCheckUtils]: 83: Hoare triple {12993#(<= 2 main_~j~0)} #t~post6 := ~i~0; {12993#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:16,788 INFO L280 TraceCheckUtils]: 84: Hoare triple {12993#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:16,789 INFO L280 TraceCheckUtils]: 85: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:16,789 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 [2020-07-10 20:23:16,789 INFO L280 TraceCheckUtils]: 87: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-10 20:23:16,790 INFO L280 TraceCheckUtils]: 88: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-10 20:23:16,790 INFO L280 TraceCheckUtils]: 89: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-10 20:23:16,790 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:16,791 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 [2020-07-10 20:23:16,792 INFO L280 TraceCheckUtils]: 92: Hoare triple {12998#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {12999#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:16,793 INFO L280 TraceCheckUtils]: 93: Hoare triple {12999#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {12946#false} is VALID [2020-07-10 20:23:16,793 INFO L280 TraceCheckUtils]: 94: Hoare triple {12946#false} assume !false; {12946#false} is VALID [2020-07-10 20:23:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-10 20:23:16,799 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:16,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700903575] [2020-07-10 20:23:16,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:16,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-10 20:23:16,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544115194] [2020-07-10 20:23:16,800 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-10 20:23:16,800 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:16,801 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 20:23:16,870 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:16,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 20:23:16,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:16,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 20:23:16,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-10 20:23:16,871 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand 9 states. [2020-07-10 20:23:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:18,288 INFO L93 Difference]: Finished difference Result 262 states and 335 transitions. [2020-07-10 20:23:18,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-10 20:23:18,288 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-10 20:23:18,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:18,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:18,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-10 20:23:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:18,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-10 20:23:18,293 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 150 transitions. [2020-07-10 20:23:18,487 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:18,493 INFO L225 Difference]: With dead ends: 262 [2020-07-10 20:23:18,493 INFO L226 Difference]: Without dead ends: 260 [2020-07-10 20:23:18,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-10 20:23:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-10 20:23:19,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2020-07-10 20:23:19,067 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:19,067 INFO L82 GeneralOperation]: Start isEquivalent. First operand 260 states. Second operand 246 states. [2020-07-10 20:23:19,067 INFO L74 IsIncluded]: Start isIncluded. First operand 260 states. Second operand 246 states. [2020-07-10 20:23:19,067 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 246 states. [2020-07-10 20:23:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:19,075 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-10 20:23:19,075 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-10 20:23:19,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:19,077 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:19,077 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 260 states. [2020-07-10 20:23:19,077 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 260 states. [2020-07-10 20:23:19,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:19,086 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-10 20:23:19,086 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-10 20:23:19,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:19,087 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:19,087 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:19,087 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-07-10 20:23:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 318 transitions. [2020-07-10 20:23:19,095 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 318 transitions. Word has length 95 [2020-07-10 20:23:19,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:19,095 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 318 transitions. [2020-07-10 20:23:19,096 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 20:23:19,096 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 246 states and 318 transitions. [2020-07-10 20:23:19,616 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 318 edges. 318 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 318 transitions. [2020-07-10 20:23:19,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-10 20:23:19,619 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:19,619 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] [2020-07-10 20:23:19,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-10 20:23:19,620 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:19,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:19,620 INFO L82 PathProgramCache]: Analyzing trace with hash -960498755, now seen corresponding path program 1 times [2020-07-10 20:23:19,621 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:19,622 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [837496791] [2020-07-10 20:23:19,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,831 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,831 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-10 20:23:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,836 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,837 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,837 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,838 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,844 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,844 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,845 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,846 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,850 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,851 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,851 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,853 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,858 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,858 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,859 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,861 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,868 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,868 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,868 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,870 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,874 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,875 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,875 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,876 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,881 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,881 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,881 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,882 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,887 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,887 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,888 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,889 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,894 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,894 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,894 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,895 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,906 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,906 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,906 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,907 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,912 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,912 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,912 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,913 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,920 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,920 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,920 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,923 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:19,928 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,928 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,929 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,931 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:19,932 INFO L263 TraceCheckUtils]: 0: Hoare triple {14548#true} call ULTIMATE.init(); {14548#true} is VALID [2020-07-10 20:23:19,932 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,932 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-10 20:23:19,933 INFO L263 TraceCheckUtils]: 3: Hoare triple {14548#true} call #t~ret10 := main(); {14548#true} is VALID [2020-07-10 20:23:19,933 INFO L280 TraceCheckUtils]: 4: Hoare triple {14548#true} havoc ~len~0; {14548#true} is VALID [2020-07-10 20:23:19,933 INFO L280 TraceCheckUtils]: 5: Hoare triple {14548#true} havoc ~i~0; {14548#true} is VALID [2020-07-10 20:23:19,934 INFO L280 TraceCheckUtils]: 6: Hoare triple {14548#true} havoc ~j~0; {14548#true} is VALID [2020-07-10 20:23:19,934 INFO L280 TraceCheckUtils]: 7: Hoare triple {14548#true} havoc ~bufsize~0; {14548#true} is VALID [2020-07-10 20:23:19,934 INFO L280 TraceCheckUtils]: 8: Hoare triple {14548#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {14548#true} is VALID [2020-07-10 20:23:19,934 INFO L280 TraceCheckUtils]: 9: Hoare triple {14548#true} ~bufsize~0 := #t~nondet0; {14548#true} is VALID [2020-07-10 20:23:19,935 INFO L280 TraceCheckUtils]: 10: Hoare triple {14548#true} havoc #t~nondet0; {14548#true} is VALID [2020-07-10 20:23:19,935 INFO L280 TraceCheckUtils]: 11: Hoare triple {14548#true} assume !(~bufsize~0 < 0); {14548#true} is VALID [2020-07-10 20:23:19,935 INFO L280 TraceCheckUtils]: 12: Hoare triple {14548#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {14548#true} is VALID [2020-07-10 20:23:19,936 INFO L280 TraceCheckUtils]: 13: Hoare triple {14548#true} ~len~0 := #t~nondet1; {14548#true} is VALID [2020-07-10 20:23:19,936 INFO L280 TraceCheckUtils]: 14: Hoare triple {14548#true} havoc #t~nondet1; {14548#true} is VALID [2020-07-10 20:23:19,936 INFO L280 TraceCheckUtils]: 15: Hoare triple {14548#true} ~limit~0 := ~bufsize~0 - 4; {14548#true} is VALID [2020-07-10 20:23:19,938 INFO L280 TraceCheckUtils]: 16: Hoare triple {14548#true} ~i~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,938 INFO L280 TraceCheckUtils]: 17: Hoare triple {14552#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,939 INFO L280 TraceCheckUtils]: 18: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,940 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 [2020-07-10 20:23:19,940 INFO L280 TraceCheckUtils]: 20: Hoare triple {14552#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,941 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 [2020-07-10 20:23:19,941 INFO L280 TraceCheckUtils]: 22: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,941 INFO L280 TraceCheckUtils]: 23: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,942 INFO L280 TraceCheckUtils]: 24: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,943 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,944 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 [2020-07-10 20:23:19,944 INFO L280 TraceCheckUtils]: 27: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,944 INFO L280 TraceCheckUtils]: 28: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,945 INFO L280 TraceCheckUtils]: 29: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,947 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,948 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 [2020-07-10 20:23:19,948 INFO L280 TraceCheckUtils]: 32: Hoare triple {14552#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,949 INFO L280 TraceCheckUtils]: 33: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,950 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 [2020-07-10 20:23:19,950 INFO L280 TraceCheckUtils]: 35: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,950 INFO L280 TraceCheckUtils]: 36: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,950 INFO L280 TraceCheckUtils]: 37: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,951 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,952 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 [2020-07-10 20:23:19,952 INFO L280 TraceCheckUtils]: 40: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,952 INFO L280 TraceCheckUtils]: 41: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,953 INFO L280 TraceCheckUtils]: 42: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,954 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,954 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 [2020-07-10 20:23:19,954 INFO L280 TraceCheckUtils]: 45: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,955 INFO L280 TraceCheckUtils]: 46: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,955 INFO L280 TraceCheckUtils]: 47: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,956 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,956 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 [2020-07-10 20:23:19,957 INFO L280 TraceCheckUtils]: 50: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,957 INFO L280 TraceCheckUtils]: 51: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,957 INFO L280 TraceCheckUtils]: 52: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,958 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,959 INFO L280 TraceCheckUtils]: 54: Hoare triple {14552#(<= 0 main_~i~0)} #t~post8 := ~j~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,960 INFO L280 TraceCheckUtils]: 55: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,961 INFO L280 TraceCheckUtils]: 56: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:19,962 INFO L280 TraceCheckUtils]: 57: Hoare triple {14552#(<= 0 main_~i~0)} #t~post9 := ~i~0; {14577#(<= 0 |main_#t~post9|)} is VALID [2020-07-10 20:23:19,963 INFO L280 TraceCheckUtils]: 58: Hoare triple {14577#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,964 INFO L280 TraceCheckUtils]: 59: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,965 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 [2020-07-10 20:23:19,965 INFO L280 TraceCheckUtils]: 61: Hoare triple {14578#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,966 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 [2020-07-10 20:23:19,966 INFO L280 TraceCheckUtils]: 63: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,966 INFO L280 TraceCheckUtils]: 64: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,967 INFO L280 TraceCheckUtils]: 65: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,968 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,968 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 [2020-07-10 20:23:19,969 INFO L280 TraceCheckUtils]: 68: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,969 INFO L280 TraceCheckUtils]: 69: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,969 INFO L280 TraceCheckUtils]: 70: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,970 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,971 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 [2020-07-10 20:23:19,972 INFO L280 TraceCheckUtils]: 73: Hoare triple {14578#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,973 INFO L280 TraceCheckUtils]: 74: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~nondet2; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,973 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 [2020-07-10 20:23:19,973 INFO L280 TraceCheckUtils]: 76: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,974 INFO L280 TraceCheckUtils]: 77: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,974 INFO L280 TraceCheckUtils]: 78: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,975 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,975 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 [2020-07-10 20:23:19,976 INFO L280 TraceCheckUtils]: 81: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:19,976 INFO L280 TraceCheckUtils]: 82: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:19,979 INFO L280 TraceCheckUtils]: 83: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:19,998 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:19,999 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 [2020-07-10 20:23:19,999 INFO L280 TraceCheckUtils]: 86: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:20,000 INFO L280 TraceCheckUtils]: 87: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:20,000 INFO L280 TraceCheckUtils]: 88: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:20,007 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:20,008 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 [2020-07-10 20:23:20,008 INFO L280 TraceCheckUtils]: 91: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:20,008 INFO L280 TraceCheckUtils]: 92: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:20,009 INFO L280 TraceCheckUtils]: 93: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:20,010 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:20,011 INFO L280 TraceCheckUtils]: 95: Hoare triple {14578#(<= 1 main_~i~0)} #t~post3 := ~j~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:20,012 INFO L280 TraceCheckUtils]: 96: Hoare triple {14578#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:20,013 INFO L280 TraceCheckUtils]: 97: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:20,014 INFO L280 TraceCheckUtils]: 98: Hoare triple {14578#(<= 1 main_~i~0)} #t~post4 := ~i~0; {14603#(<= 1 |main_#t~post4|)} is VALID [2020-07-10 20:23:20,015 INFO L280 TraceCheckUtils]: 99: Hoare triple {14603#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:20,016 INFO L280 TraceCheckUtils]: 100: Hoare triple {14604#(<= 2 main_~i~0)} havoc #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:20,017 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 [2020-07-10 20:23:20,017 INFO L280 TraceCheckUtils]: 102: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-10 20:23:20,017 INFO L280 TraceCheckUtils]: 103: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-10 20:23:20,018 INFO L280 TraceCheckUtils]: 104: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-10 20:23:20,019 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:20,020 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 [2020-07-10 20:23:20,021 INFO L280 TraceCheckUtils]: 107: Hoare triple {14609#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {14610#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:20,022 INFO L280 TraceCheckUtils]: 108: Hoare triple {14610#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {14549#false} is VALID [2020-07-10 20:23:20,023 INFO L280 TraceCheckUtils]: 109: Hoare triple {14549#false} assume !false; {14549#false} is VALID [2020-07-10 20:23:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-10 20:23:20,056 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:20,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [837496791] [2020-07-10 20:23:20,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:20,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-10 20:23:20,057 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057606916] [2020-07-10 20:23:20,058 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-10 20:23:20,061 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:20,061 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 20:23:20,166 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:20,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 20:23:20,167 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:20,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 20:23:20,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-10 20:23:20,168 INFO L87 Difference]: Start difference. First operand 246 states and 318 transitions. Second operand 9 states. [2020-07-10 20:23:22,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:22,741 INFO L93 Difference]: Finished difference Result 293 states and 378 transitions. [2020-07-10 20:23:22,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-10 20:23:22,741 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-10 20:23:22,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:22,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:22,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-10 20:23:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:22,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-10 20:23:22,752 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 186 transitions. [2020-07-10 20:23:23,029 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:23,044 INFO L225 Difference]: With dead ends: 293 [2020-07-10 20:23:23,044 INFO L226 Difference]: Without dead ends: 291 [2020-07-10 20:23:23,047 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 [2020-07-10 20:23:23,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-10 20:23:23,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 270. [2020-07-10 20:23:23,931 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:23,931 INFO L82 GeneralOperation]: Start isEquivalent. First operand 291 states. Second operand 270 states. [2020-07-10 20:23:23,931 INFO L74 IsIncluded]: Start isIncluded. First operand 291 states. Second operand 270 states. [2020-07-10 20:23:23,931 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 270 states. [2020-07-10 20:23:23,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:23,948 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-10 20:23:23,948 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-10 20:23:23,950 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:23,950 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:23,950 INFO L74 IsIncluded]: Start isIncluded. First operand 270 states. Second operand 291 states. [2020-07-10 20:23:23,951 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 291 states. [2020-07-10 20:23:23,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:23,964 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-10 20:23:23,965 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-10 20:23:23,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:23,966 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:23,966 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:23,966 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:23,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-10 20:23:23,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 349 transitions. [2020-07-10 20:23:23,980 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 349 transitions. Word has length 110 [2020-07-10 20:23:23,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:23,981 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 349 transitions. [2020-07-10 20:23:23,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 20:23:23,982 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 270 states and 349 transitions. [2020-07-10 20:23:24,742 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 349 edges. 349 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:24,743 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 349 transitions. [2020-07-10 20:23:24,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-10 20:23:24,747 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:24,749 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] [2020-07-10 20:23:24,749 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-10 20:23:24,749 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:24,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:24,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1038471395, now seen corresponding path program 1 times [2020-07-10 20:23:24,750 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:24,751 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669615097] [2020-07-10 20:23:24,751 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,042 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,043 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-10 20:23:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,047 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,048 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,048 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,049 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,065 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,066 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,068 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,073 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,073 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,074 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,075 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,079 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,080 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,080 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,081 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,094 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,094 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,095 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,096 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,105 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,106 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,106 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,107 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,115 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,116 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,116 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,117 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,122 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,123 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,123 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,124 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,133 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,134 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,134 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,135 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,140 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,141 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,141 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,143 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,149 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,149 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,150 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,151 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,156 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,156 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,157 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,158 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:25,165 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,165 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,166 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,167 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,167 INFO L263 TraceCheckUtils]: 0: Hoare triple {16331#true} call ULTIMATE.init(); {16331#true} is VALID [2020-07-10 20:23:25,168 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,168 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-10 20:23:25,168 INFO L263 TraceCheckUtils]: 3: Hoare triple {16331#true} call #t~ret10 := main(); {16331#true} is VALID [2020-07-10 20:23:25,169 INFO L280 TraceCheckUtils]: 4: Hoare triple {16331#true} havoc ~len~0; {16331#true} is VALID [2020-07-10 20:23:25,169 INFO L280 TraceCheckUtils]: 5: Hoare triple {16331#true} havoc ~i~0; {16331#true} is VALID [2020-07-10 20:23:25,169 INFO L280 TraceCheckUtils]: 6: Hoare triple {16331#true} havoc ~j~0; {16331#true} is VALID [2020-07-10 20:23:25,170 INFO L280 TraceCheckUtils]: 7: Hoare triple {16331#true} havoc ~bufsize~0; {16331#true} is VALID [2020-07-10 20:23:25,170 INFO L280 TraceCheckUtils]: 8: Hoare triple {16331#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {16331#true} is VALID [2020-07-10 20:23:25,170 INFO L280 TraceCheckUtils]: 9: Hoare triple {16331#true} ~bufsize~0 := #t~nondet0; {16331#true} is VALID [2020-07-10 20:23:25,171 INFO L280 TraceCheckUtils]: 10: Hoare triple {16331#true} havoc #t~nondet0; {16331#true} is VALID [2020-07-10 20:23:25,171 INFO L280 TraceCheckUtils]: 11: Hoare triple {16331#true} assume !(~bufsize~0 < 0); {16331#true} is VALID [2020-07-10 20:23:25,171 INFO L280 TraceCheckUtils]: 12: Hoare triple {16331#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {16331#true} is VALID [2020-07-10 20:23:25,172 INFO L280 TraceCheckUtils]: 13: Hoare triple {16331#true} ~len~0 := #t~nondet1; {16331#true} is VALID [2020-07-10 20:23:25,172 INFO L280 TraceCheckUtils]: 14: Hoare triple {16331#true} havoc #t~nondet1; {16331#true} is VALID [2020-07-10 20:23:25,172 INFO L280 TraceCheckUtils]: 15: Hoare triple {16331#true} ~limit~0 := ~bufsize~0 - 4; {16331#true} is VALID [2020-07-10 20:23:25,173 INFO L280 TraceCheckUtils]: 16: Hoare triple {16331#true} ~i~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,174 INFO L280 TraceCheckUtils]: 17: Hoare triple {16335#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,175 INFO L280 TraceCheckUtils]: 18: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,176 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 [2020-07-10 20:23:25,177 INFO L280 TraceCheckUtils]: 20: Hoare triple {16335#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,177 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 [2020-07-10 20:23:25,177 INFO L280 TraceCheckUtils]: 22: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,178 INFO L280 TraceCheckUtils]: 23: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,178 INFO L280 TraceCheckUtils]: 24: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,179 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,180 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 [2020-07-10 20:23:25,180 INFO L280 TraceCheckUtils]: 27: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,180 INFO L280 TraceCheckUtils]: 28: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,181 INFO L280 TraceCheckUtils]: 29: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,182 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,182 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 [2020-07-10 20:23:25,183 INFO L280 TraceCheckUtils]: 32: Hoare triple {16335#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,184 INFO L280 TraceCheckUtils]: 33: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~nondet2; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,185 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 [2020-07-10 20:23:25,185 INFO L280 TraceCheckUtils]: 35: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,185 INFO L280 TraceCheckUtils]: 36: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,186 INFO L280 TraceCheckUtils]: 37: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,187 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,187 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 [2020-07-10 20:23:25,187 INFO L280 TraceCheckUtils]: 40: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,188 INFO L280 TraceCheckUtils]: 41: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,188 INFO L280 TraceCheckUtils]: 42: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,189 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,189 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 [2020-07-10 20:23:25,189 INFO L280 TraceCheckUtils]: 45: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,190 INFO L280 TraceCheckUtils]: 46: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,190 INFO L280 TraceCheckUtils]: 47: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,191 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,192 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 [2020-07-10 20:23:25,192 INFO L280 TraceCheckUtils]: 50: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,192 INFO L280 TraceCheckUtils]: 51: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,193 INFO L280 TraceCheckUtils]: 52: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,194 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,194 INFO L280 TraceCheckUtils]: 54: Hoare triple {16335#(<= 0 main_~i~0)} #t~post3 := ~j~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,195 INFO L280 TraceCheckUtils]: 55: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,196 INFO L280 TraceCheckUtils]: 56: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:25,197 INFO L280 TraceCheckUtils]: 57: Hoare triple {16335#(<= 0 main_~i~0)} #t~post4 := ~i~0; {16360#(<= 0 |main_#t~post4|)} is VALID [2020-07-10 20:23:25,198 INFO L280 TraceCheckUtils]: 58: Hoare triple {16360#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,199 INFO L280 TraceCheckUtils]: 59: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,200 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 [2020-07-10 20:23:25,200 INFO L280 TraceCheckUtils]: 61: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,200 INFO L280 TraceCheckUtils]: 62: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,200 INFO L280 TraceCheckUtils]: 63: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,202 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,202 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 [2020-07-10 20:23:25,202 INFO L280 TraceCheckUtils]: 66: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,203 INFO L280 TraceCheckUtils]: 67: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,203 INFO L280 TraceCheckUtils]: 68: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,204 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,204 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 [2020-07-10 20:23:25,205 INFO L280 TraceCheckUtils]: 71: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,205 INFO L280 TraceCheckUtils]: 72: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,205 INFO L280 TraceCheckUtils]: 73: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,206 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,207 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 [2020-07-10 20:23:25,207 INFO L280 TraceCheckUtils]: 76: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,207 INFO L280 TraceCheckUtils]: 77: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,208 INFO L280 TraceCheckUtils]: 78: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,209 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,209 INFO L280 TraceCheckUtils]: 80: Hoare triple {16361#(<= 1 main_~i~0)} #t~post5 := ~j~0; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,210 INFO L280 TraceCheckUtils]: 81: Hoare triple {16361#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,211 INFO L280 TraceCheckUtils]: 82: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:25,212 INFO L280 TraceCheckUtils]: 83: Hoare triple {16361#(<= 1 main_~i~0)} #t~post6 := ~i~0; {16378#(<= 1 |main_#t~post6|)} is VALID [2020-07-10 20:23:25,213 INFO L280 TraceCheckUtils]: 84: Hoare triple {16378#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,214 INFO L280 TraceCheckUtils]: 85: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,214 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 [2020-07-10 20:23:25,215 INFO L280 TraceCheckUtils]: 87: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,215 INFO L280 TraceCheckUtils]: 88: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,215 INFO L280 TraceCheckUtils]: 89: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,216 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,217 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 [2020-07-10 20:23:25,217 INFO L280 TraceCheckUtils]: 92: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,217 INFO L280 TraceCheckUtils]: 93: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,218 INFO L280 TraceCheckUtils]: 94: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,219 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,220 INFO L280 TraceCheckUtils]: 96: Hoare triple {16379#(<= 2 main_~i~0)} #t~post7 := ~j~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,220 INFO L280 TraceCheckUtils]: 97: Hoare triple {16379#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,221 INFO L280 TraceCheckUtils]: 98: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,222 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 [2020-07-10 20:23:25,223 INFO L280 TraceCheckUtils]: 100: Hoare triple {16379#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,223 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 [2020-07-10 20:23:25,224 INFO L280 TraceCheckUtils]: 102: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-10 20:23:25,224 INFO L280 TraceCheckUtils]: 103: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-10 20:23:25,224 INFO L280 TraceCheckUtils]: 104: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-10 20:23:25,225 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:25,226 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 [2020-07-10 20:23:25,227 INFO L280 TraceCheckUtils]: 107: Hoare triple {16392#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {16393#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:25,228 INFO L280 TraceCheckUtils]: 108: Hoare triple {16393#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {16332#false} is VALID [2020-07-10 20:23:25,229 INFO L280 TraceCheckUtils]: 109: Hoare triple {16332#false} assume !false; {16332#false} is VALID [2020-07-10 20:23:25,245 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-10 20:23:25,245 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:25,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669615097] [2020-07-10 20:23:25,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:25,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-10 20:23:25,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141267648] [2020-07-10 20:23:25,247 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-10 20:23:25,248 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:25,248 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 20:23:25,339 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:25,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 20:23:25,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:25,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 20:23:25,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-10 20:23:25,340 INFO L87 Difference]: Start difference. First operand 270 states and 349 transitions. Second operand 9 states. [2020-07-10 20:23:27,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:27,397 INFO L93 Difference]: Finished difference Result 372 states and 494 transitions. [2020-07-10 20:23:27,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-10 20:23:27,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-10 20:23:27,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:27,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:27,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-10 20:23:27,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:27,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-10 20:23:27,403 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 194 transitions. [2020-07-10 20:23:27,650 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 194 edges. 194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:27,662 INFO L225 Difference]: With dead ends: 372 [2020-07-10 20:23:27,662 INFO L226 Difference]: Without dead ends: 368 [2020-07-10 20:23:27,663 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 [2020-07-10 20:23:27,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-10 20:23:28,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 345. [2020-07-10 20:23:28,575 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:28,575 INFO L82 GeneralOperation]: Start isEquivalent. First operand 368 states. Second operand 345 states. [2020-07-10 20:23:28,575 INFO L74 IsIncluded]: Start isIncluded. First operand 368 states. Second operand 345 states. [2020-07-10 20:23:28,575 INFO L87 Difference]: Start difference. First operand 368 states. Second operand 345 states. [2020-07-10 20:23:28,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:28,588 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-10 20:23:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-10 20:23:28,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:28,590 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:28,590 INFO L74 IsIncluded]: Start isIncluded. First operand 345 states. Second operand 368 states. [2020-07-10 20:23:28,591 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 368 states. [2020-07-10 20:23:28,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:28,605 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-10 20:23:28,605 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-10 20:23:28,607 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:28,607 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:28,608 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:28,608 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:28,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-10 20:23:28,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 458 transitions. [2020-07-10 20:23:28,621 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 458 transitions. Word has length 110 [2020-07-10 20:23:28,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:28,621 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 458 transitions. [2020-07-10 20:23:28,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 20:23:28,621 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 345 states and 458 transitions. [2020-07-10 20:23:29,427 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 458 edges. 458 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 458 transitions. [2020-07-10 20:23:29,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-10 20:23:29,431 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:29,431 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] [2020-07-10 20:23:29,431 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-10 20:23:29,431 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:29,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:29,432 INFO L82 PathProgramCache]: Analyzing trace with hash 1539222205, now seen corresponding path program 1 times [2020-07-10 20:23:29,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:29,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1579958623] [2020-07-10 20:23:29,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,554 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,555 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-10 20:23:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,561 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,562 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,562 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,563 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,566 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,567 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,567 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,568 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,571 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,571 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,572 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,572 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,576 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,576 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,576 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,577 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,581 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,581 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,581 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,582 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,585 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,586 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,586 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,587 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,591 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,591 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,591 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,592 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,596 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,596 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,596 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,597 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,601 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,601 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,602 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,603 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,606 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,606 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,607 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,607 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,611 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,612 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,612 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,614 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,617 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,618 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,618 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,618 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,622 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,622 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,623 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,623 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,627 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,627 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,627 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,628 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:29,639 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,639 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,640 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,640 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,641 INFO L263 TraceCheckUtils]: 0: Hoare triple {18578#true} call ULTIMATE.init(); {18578#true} is VALID [2020-07-10 20:23:29,641 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,641 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-10 20:23:29,641 INFO L263 TraceCheckUtils]: 3: Hoare triple {18578#true} call #t~ret10 := main(); {18578#true} is VALID [2020-07-10 20:23:29,642 INFO L280 TraceCheckUtils]: 4: Hoare triple {18578#true} havoc ~len~0; {18578#true} is VALID [2020-07-10 20:23:29,642 INFO L280 TraceCheckUtils]: 5: Hoare triple {18578#true} havoc ~i~0; {18578#true} is VALID [2020-07-10 20:23:29,642 INFO L280 TraceCheckUtils]: 6: Hoare triple {18578#true} havoc ~j~0; {18578#true} is VALID [2020-07-10 20:23:29,642 INFO L280 TraceCheckUtils]: 7: Hoare triple {18578#true} havoc ~bufsize~0; {18578#true} is VALID [2020-07-10 20:23:29,643 INFO L280 TraceCheckUtils]: 8: Hoare triple {18578#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18578#true} is VALID [2020-07-10 20:23:29,643 INFO L280 TraceCheckUtils]: 9: Hoare triple {18578#true} ~bufsize~0 := #t~nondet0; {18578#true} is VALID [2020-07-10 20:23:29,643 INFO L280 TraceCheckUtils]: 10: Hoare triple {18578#true} havoc #t~nondet0; {18578#true} is VALID [2020-07-10 20:23:29,644 INFO L280 TraceCheckUtils]: 11: Hoare triple {18578#true} assume !(~bufsize~0 < 0); {18578#true} is VALID [2020-07-10 20:23:29,644 INFO L280 TraceCheckUtils]: 12: Hoare triple {18578#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18578#true} is VALID [2020-07-10 20:23:29,644 INFO L280 TraceCheckUtils]: 13: Hoare triple {18578#true} ~len~0 := #t~nondet1; {18578#true} is VALID [2020-07-10 20:23:29,644 INFO L280 TraceCheckUtils]: 14: Hoare triple {18578#true} havoc #t~nondet1; {18578#true} is VALID [2020-07-10 20:23:29,645 INFO L280 TraceCheckUtils]: 15: Hoare triple {18578#true} ~limit~0 := ~bufsize~0 - 4; {18578#true} is VALID [2020-07-10 20:23:29,645 INFO L280 TraceCheckUtils]: 16: Hoare triple {18578#true} ~i~0 := 0; {18578#true} is VALID [2020-07-10 20:23:29,645 INFO L280 TraceCheckUtils]: 17: Hoare triple {18578#true} assume !!(~i~0 < ~len~0); {18578#true} is VALID [2020-07-10 20:23:29,647 INFO L280 TraceCheckUtils]: 18: Hoare triple {18578#true} ~j~0 := 0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,647 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 [2020-07-10 20:23:29,648 INFO L280 TraceCheckUtils]: 20: Hoare triple {18582#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,648 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 [2020-07-10 20:23:29,648 INFO L280 TraceCheckUtils]: 22: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,648 INFO L280 TraceCheckUtils]: 23: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,648 INFO L280 TraceCheckUtils]: 24: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,649 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,649 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 [2020-07-10 20:23:29,650 INFO L280 TraceCheckUtils]: 27: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,650 INFO L280 TraceCheckUtils]: 28: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,650 INFO L280 TraceCheckUtils]: 29: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,651 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,651 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 [2020-07-10 20:23:29,652 INFO L280 TraceCheckUtils]: 32: Hoare triple {18582#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,652 INFO L280 TraceCheckUtils]: 33: Hoare triple {18582#(<= 0 main_~j~0)} havoc #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,652 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 [2020-07-10 20:23:29,652 INFO L280 TraceCheckUtils]: 35: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,653 INFO L280 TraceCheckUtils]: 36: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,653 INFO L280 TraceCheckUtils]: 37: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,654 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,654 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 [2020-07-10 20:23:29,654 INFO L280 TraceCheckUtils]: 40: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,654 INFO L280 TraceCheckUtils]: 41: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,654 INFO L280 TraceCheckUtils]: 42: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,655 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,655 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 [2020-07-10 20:23:29,655 INFO L280 TraceCheckUtils]: 45: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,655 INFO L280 TraceCheckUtils]: 46: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,656 INFO L280 TraceCheckUtils]: 47: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,657 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,657 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 [2020-07-10 20:23:29,657 INFO L280 TraceCheckUtils]: 50: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,657 INFO L280 TraceCheckUtils]: 51: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,657 INFO L280 TraceCheckUtils]: 52: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,658 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:29,658 INFO L280 TraceCheckUtils]: 54: Hoare triple {18582#(<= 0 main_~j~0)} #t~post8 := ~j~0; {18607#(<= 0 |main_#t~post8|)} is VALID [2020-07-10 20:23:29,659 INFO L280 TraceCheckUtils]: 55: Hoare triple {18607#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,660 INFO L280 TraceCheckUtils]: 56: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,660 INFO L280 TraceCheckUtils]: 57: Hoare triple {18608#(<= 1 main_~j~0)} #t~post9 := ~i~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,661 INFO L280 TraceCheckUtils]: 58: Hoare triple {18608#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,661 INFO L280 TraceCheckUtils]: 59: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,662 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 [2020-07-10 20:23:29,662 INFO L280 TraceCheckUtils]: 61: Hoare triple {18608#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,663 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 [2020-07-10 20:23:29,663 INFO L280 TraceCheckUtils]: 63: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,663 INFO L280 TraceCheckUtils]: 64: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,663 INFO L280 TraceCheckUtils]: 65: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,664 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,664 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 [2020-07-10 20:23:29,664 INFO L280 TraceCheckUtils]: 68: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,664 INFO L280 TraceCheckUtils]: 69: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,665 INFO L280 TraceCheckUtils]: 70: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,665 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,666 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 [2020-07-10 20:23:29,666 INFO L280 TraceCheckUtils]: 73: Hoare triple {18608#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,667 INFO L280 TraceCheckUtils]: 74: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~nondet2; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,667 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 [2020-07-10 20:23:29,667 INFO L280 TraceCheckUtils]: 76: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,668 INFO L280 TraceCheckUtils]: 77: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,668 INFO L280 TraceCheckUtils]: 78: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,669 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,669 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 [2020-07-10 20:23:29,669 INFO L280 TraceCheckUtils]: 81: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,669 INFO L280 TraceCheckUtils]: 82: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,669 INFO L280 TraceCheckUtils]: 83: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,670 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,670 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 [2020-07-10 20:23:29,671 INFO L280 TraceCheckUtils]: 86: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,671 INFO L280 TraceCheckUtils]: 87: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,671 INFO L280 TraceCheckUtils]: 88: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,672 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,672 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 [2020-07-10 20:23:29,672 INFO L280 TraceCheckUtils]: 91: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,672 INFO L280 TraceCheckUtils]: 92: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,673 INFO L280 TraceCheckUtils]: 93: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,673 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:29,675 INFO L280 TraceCheckUtils]: 95: Hoare triple {18608#(<= 1 main_~j~0)} #t~post3 := ~j~0; {18633#(<= 1 |main_#t~post3|)} is VALID [2020-07-10 20:23:29,675 INFO L280 TraceCheckUtils]: 96: Hoare triple {18633#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,677 INFO L280 TraceCheckUtils]: 97: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,678 INFO L280 TraceCheckUtils]: 98: Hoare triple {18634#(<= 2 main_~j~0)} #t~post4 := ~i~0; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,678 INFO L280 TraceCheckUtils]: 99: Hoare triple {18634#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,679 INFO L280 TraceCheckUtils]: 100: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,679 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 [2020-07-10 20:23:29,679 INFO L280 TraceCheckUtils]: 102: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,680 INFO L280 TraceCheckUtils]: 103: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,680 INFO L280 TraceCheckUtils]: 104: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,681 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,681 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 [2020-07-10 20:23:29,681 INFO L280 TraceCheckUtils]: 107: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,681 INFO L280 TraceCheckUtils]: 108: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,681 INFO L280 TraceCheckUtils]: 109: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,682 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,683 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 [2020-07-10 20:23:29,683 INFO L280 TraceCheckUtils]: 112: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-10 20:23:29,683 INFO L280 TraceCheckUtils]: 113: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-10 20:23:29,683 INFO L280 TraceCheckUtils]: 114: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-10 20:23:29,684 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:29,685 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 [2020-07-10 20:23:29,685 INFO L280 TraceCheckUtils]: 117: Hoare triple {18647#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {18648#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:29,686 INFO L280 TraceCheckUtils]: 118: Hoare triple {18648#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {18579#false} is VALID [2020-07-10 20:23:29,686 INFO L280 TraceCheckUtils]: 119: Hoare triple {18579#false} assume !false; {18579#false} is VALID [2020-07-10 20:23:29,699 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-10 20:23:29,700 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:29,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1579958623] [2020-07-10 20:23:29,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:29,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-10 20:23:29,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440141081] [2020-07-10 20:23:29,701 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-10 20:23:29,701 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:29,701 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-10 20:23:29,785 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:29,786 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-10 20:23:29,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:29,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-10 20:23:29,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-10 20:23:29,786 INFO L87 Difference]: Start difference. First operand 345 states and 458 transitions. Second operand 9 states. [2020-07-10 20:23:31,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:31,788 INFO L93 Difference]: Finished difference Result 379 states and 496 transitions. [2020-07-10 20:23:31,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-10 20:23:31,788 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-10 20:23:31,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:31,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-10 20:23:31,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-10 20:23:31,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-10 20:23:31,793 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 179 transitions. [2020-07-10 20:23:32,030 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:32,042 INFO L225 Difference]: With dead ends: 379 [2020-07-10 20:23:32,042 INFO L226 Difference]: Without dead ends: 377 [2020-07-10 20:23:32,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-10 20:23:32,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-07-10 20:23:33,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 359. [2020-07-10 20:23:33,081 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:33,081 INFO L82 GeneralOperation]: Start isEquivalent. First operand 377 states. Second operand 359 states. [2020-07-10 20:23:33,082 INFO L74 IsIncluded]: Start isIncluded. First operand 377 states. Second operand 359 states. [2020-07-10 20:23:33,082 INFO L87 Difference]: Start difference. First operand 377 states. Second operand 359 states. [2020-07-10 20:23:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:33,095 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-10 20:23:33,095 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-10 20:23:33,097 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:33,097 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:33,097 INFO L74 IsIncluded]: Start isIncluded. First operand 359 states. Second operand 377 states. [2020-07-10 20:23:33,097 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 377 states. [2020-07-10 20:23:33,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:33,111 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-10 20:23:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-10 20:23:33,113 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:33,113 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:33,113 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:33,113 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-07-10 20:23:33,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 475 transitions. [2020-07-10 20:23:33,125 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 475 transitions. Word has length 120 [2020-07-10 20:23:33,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:33,125 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 475 transitions. [2020-07-10 20:23:33,125 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-10 20:23:33,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 359 states and 475 transitions. [2020-07-10 20:23:33,941 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 475 edges. 475 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 475 transitions. [2020-07-10 20:23:33,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-10 20:23:33,944 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:33,944 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] [2020-07-10 20:23:33,944 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-10 20:23:33,944 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:33,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:33,945 INFO L82 PathProgramCache]: Analyzing trace with hash 871752502, now seen corresponding path program 1 times [2020-07-10 20:23:33,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:33,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1384230431] [2020-07-10 20:23:33,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,153 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,153 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-10 20:23:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,157 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,158 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,158 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,159 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,163 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,163 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,164 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,165 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,169 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,169 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,170 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,171 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,175 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,175 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,175 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,176 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,182 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,182 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,182 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,183 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,187 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,187 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,188 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,188 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,193 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,193 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,194 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,195 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,199 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,200 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,200 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,205 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,211 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,211 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,212 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,213 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,216 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,217 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,217 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,218 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,222 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,222 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,222 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,223 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,227 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,228 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,233 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,233 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,233 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,234 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:34,239 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,239 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,239 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,240 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,241 INFO L263 TraceCheckUtils]: 0: Hoare triple {20891#true} call ULTIMATE.init(); {20891#true} is VALID [2020-07-10 20:23:34,241 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,241 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-10 20:23:34,241 INFO L263 TraceCheckUtils]: 3: Hoare triple {20891#true} call #t~ret10 := main(); {20891#true} is VALID [2020-07-10 20:23:34,241 INFO L280 TraceCheckUtils]: 4: Hoare triple {20891#true} havoc ~len~0; {20891#true} is VALID [2020-07-10 20:23:34,242 INFO L280 TraceCheckUtils]: 5: Hoare triple {20891#true} havoc ~i~0; {20891#true} is VALID [2020-07-10 20:23:34,242 INFO L280 TraceCheckUtils]: 6: Hoare triple {20891#true} havoc ~j~0; {20891#true} is VALID [2020-07-10 20:23:34,242 INFO L280 TraceCheckUtils]: 7: Hoare triple {20891#true} havoc ~bufsize~0; {20891#true} is VALID [2020-07-10 20:23:34,242 INFO L280 TraceCheckUtils]: 8: Hoare triple {20891#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {20891#true} is VALID [2020-07-10 20:23:34,242 INFO L280 TraceCheckUtils]: 9: Hoare triple {20891#true} ~bufsize~0 := #t~nondet0; {20891#true} is VALID [2020-07-10 20:23:34,243 INFO L280 TraceCheckUtils]: 10: Hoare triple {20891#true} havoc #t~nondet0; {20891#true} is VALID [2020-07-10 20:23:34,243 INFO L280 TraceCheckUtils]: 11: Hoare triple {20891#true} assume !(~bufsize~0 < 0); {20891#true} is VALID [2020-07-10 20:23:34,243 INFO L280 TraceCheckUtils]: 12: Hoare triple {20891#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {20891#true} is VALID [2020-07-10 20:23:34,243 INFO L280 TraceCheckUtils]: 13: Hoare triple {20891#true} ~len~0 := #t~nondet1; {20891#true} is VALID [2020-07-10 20:23:34,243 INFO L280 TraceCheckUtils]: 14: Hoare triple {20891#true} havoc #t~nondet1; {20891#true} is VALID [2020-07-10 20:23:34,243 INFO L280 TraceCheckUtils]: 15: Hoare triple {20891#true} ~limit~0 := ~bufsize~0 - 4; {20891#true} is VALID [2020-07-10 20:23:34,244 INFO L280 TraceCheckUtils]: 16: Hoare triple {20891#true} ~i~0 := 0; {20891#true} is VALID [2020-07-10 20:23:34,244 INFO L280 TraceCheckUtils]: 17: Hoare triple {20891#true} assume !!(~i~0 < ~len~0); {20891#true} is VALID [2020-07-10 20:23:34,245 INFO L280 TraceCheckUtils]: 18: Hoare triple {20891#true} ~j~0 := 0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,245 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 [2020-07-10 20:23:34,246 INFO L280 TraceCheckUtils]: 20: Hoare triple {20895#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,246 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 [2020-07-10 20:23:34,246 INFO L280 TraceCheckUtils]: 22: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,247 INFO L280 TraceCheckUtils]: 23: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,247 INFO L280 TraceCheckUtils]: 24: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,248 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,248 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 [2020-07-10 20:23:34,248 INFO L280 TraceCheckUtils]: 27: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,249 INFO L280 TraceCheckUtils]: 28: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,249 INFO L280 TraceCheckUtils]: 29: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,250 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,250 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 [2020-07-10 20:23:34,251 INFO L280 TraceCheckUtils]: 32: Hoare triple {20895#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,252 INFO L280 TraceCheckUtils]: 33: Hoare triple {20895#(<= 0 main_~j~0)} havoc #t~nondet2; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,252 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 [2020-07-10 20:23:34,252 INFO L280 TraceCheckUtils]: 35: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,252 INFO L280 TraceCheckUtils]: 36: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,252 INFO L280 TraceCheckUtils]: 37: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,253 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,254 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 [2020-07-10 20:23:34,254 INFO L280 TraceCheckUtils]: 40: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,254 INFO L280 TraceCheckUtils]: 41: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,254 INFO L280 TraceCheckUtils]: 42: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,255 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,255 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 [2020-07-10 20:23:34,255 INFO L280 TraceCheckUtils]: 45: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,256 INFO L280 TraceCheckUtils]: 46: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,256 INFO L280 TraceCheckUtils]: 47: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,257 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,257 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 [2020-07-10 20:23:34,258 INFO L280 TraceCheckUtils]: 50: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,258 INFO L280 TraceCheckUtils]: 51: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,258 INFO L280 TraceCheckUtils]: 52: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,260 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:34,261 INFO L280 TraceCheckUtils]: 54: Hoare triple {20895#(<= 0 main_~j~0)} #t~post3 := ~j~0; {20920#(<= 0 |main_#t~post3|)} is VALID [2020-07-10 20:23:34,262 INFO L280 TraceCheckUtils]: 55: Hoare triple {20920#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,263 INFO L280 TraceCheckUtils]: 56: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,264 INFO L280 TraceCheckUtils]: 57: Hoare triple {20921#(<= 1 main_~j~0)} #t~post4 := ~i~0; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,265 INFO L280 TraceCheckUtils]: 58: Hoare triple {20921#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,266 INFO L280 TraceCheckUtils]: 59: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,267 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 [2020-07-10 20:23:34,267 INFO L280 TraceCheckUtils]: 61: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,267 INFO L280 TraceCheckUtils]: 62: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,268 INFO L280 TraceCheckUtils]: 63: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,269 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,269 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 [2020-07-10 20:23:34,270 INFO L280 TraceCheckUtils]: 66: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,270 INFO L280 TraceCheckUtils]: 67: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,270 INFO L280 TraceCheckUtils]: 68: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,272 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,272 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 [2020-07-10 20:23:34,272 INFO L280 TraceCheckUtils]: 71: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,273 INFO L280 TraceCheckUtils]: 72: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,273 INFO L280 TraceCheckUtils]: 73: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,274 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,275 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 [2020-07-10 20:23:34,275 INFO L280 TraceCheckUtils]: 76: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,275 INFO L280 TraceCheckUtils]: 77: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,276 INFO L280 TraceCheckUtils]: 78: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,277 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:34,278 INFO L280 TraceCheckUtils]: 80: Hoare triple {20921#(<= 1 main_~j~0)} #t~post5 := ~j~0; {20938#(<= 1 |main_#t~post5|)} is VALID [2020-07-10 20:23:34,279 INFO L280 TraceCheckUtils]: 81: Hoare triple {20938#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,280 INFO L280 TraceCheckUtils]: 82: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,281 INFO L280 TraceCheckUtils]: 83: Hoare triple {20939#(<= 2 main_~j~0)} #t~post6 := ~i~0; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,282 INFO L280 TraceCheckUtils]: 84: Hoare triple {20939#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,283 INFO L280 TraceCheckUtils]: 85: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,284 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 [2020-07-10 20:23:34,284 INFO L280 TraceCheckUtils]: 87: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,284 INFO L280 TraceCheckUtils]: 88: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,285 INFO L280 TraceCheckUtils]: 89: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,286 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,286 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 [2020-07-10 20:23:34,287 INFO L280 TraceCheckUtils]: 92: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,287 INFO L280 TraceCheckUtils]: 93: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,287 INFO L280 TraceCheckUtils]: 94: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,289 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:34,290 INFO L280 TraceCheckUtils]: 96: Hoare triple {20939#(<= 2 main_~j~0)} #t~post7 := ~j~0; {20948#(<= 2 |main_#t~post7|)} is VALID [2020-07-10 20:23:34,291 INFO L280 TraceCheckUtils]: 97: Hoare triple {20948#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,292 INFO L280 TraceCheckUtils]: 98: Hoare triple {20949#(<= 3 main_~j~0)} havoc #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,293 INFO L280 TraceCheckUtils]: 99: Hoare triple {20949#(<= 3 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,294 INFO L280 TraceCheckUtils]: 100: Hoare triple {20949#(<= 3 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,295 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 [2020-07-10 20:23:34,295 INFO L280 TraceCheckUtils]: 102: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,295 INFO L280 TraceCheckUtils]: 103: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,296 INFO L280 TraceCheckUtils]: 104: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,297 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,297 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 [2020-07-10 20:23:34,298 INFO L280 TraceCheckUtils]: 107: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,298 INFO L280 TraceCheckUtils]: 108: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,298 INFO L280 TraceCheckUtils]: 109: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,300 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,300 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 [2020-07-10 20:23:34,301 INFO L280 TraceCheckUtils]: 112: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-10 20:23:34,301 INFO L280 TraceCheckUtils]: 113: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-10 20:23:34,301 INFO L280 TraceCheckUtils]: 114: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-10 20:23:34,303 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:34,304 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 [2020-07-10 20:23:34,305 INFO L280 TraceCheckUtils]: 117: Hoare triple {20962#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {20963#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:34,306 INFO L280 TraceCheckUtils]: 118: Hoare triple {20963#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {20892#false} is VALID [2020-07-10 20:23:34,307 INFO L280 TraceCheckUtils]: 119: Hoare triple {20892#false} assume !false; {20892#false} is VALID [2020-07-10 20:23:34,327 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-10 20:23:34,327 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:34,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1384230431] [2020-07-10 20:23:34,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:34,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-10 20:23:34,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001950222] [2020-07-10 20:23:34,329 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-10 20:23:34,330 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:34,331 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-10 20:23:34,467 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:34,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-10 20:23:34,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:34,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-10 20:23:34,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-10 20:23:34,468 INFO L87 Difference]: Start difference. First operand 359 states and 475 transitions. Second operand 11 states. [2020-07-10 20:23:37,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:37,367 INFO L93 Difference]: Finished difference Result 424 states and 562 transitions. [2020-07-10 20:23:37,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-10 20:23:37,367 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-10 20:23:37,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:37,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:37,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-10 20:23:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-10 20:23:37,373 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 186 transitions. [2020-07-10 20:23:37,603 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:37,615 INFO L225 Difference]: With dead ends: 424 [2020-07-10 20:23:37,615 INFO L226 Difference]: Without dead ends: 418 [2020-07-10 20:23:37,616 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 [2020-07-10 20:23:37,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-10 20:23:38,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 398. [2020-07-10 20:23:38,704 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:38,704 INFO L82 GeneralOperation]: Start isEquivalent. First operand 418 states. Second operand 398 states. [2020-07-10 20:23:38,704 INFO L74 IsIncluded]: Start isIncluded. First operand 418 states. Second operand 398 states. [2020-07-10 20:23:38,705 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 398 states. [2020-07-10 20:23:38,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:38,720 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-10 20:23:38,720 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-10 20:23:38,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:38,722 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:38,723 INFO L74 IsIncluded]: Start isIncluded. First operand 398 states. Second operand 418 states. [2020-07-10 20:23:38,723 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 418 states. [2020-07-10 20:23:38,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:38,739 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-10 20:23:38,739 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-10 20:23:38,741 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:38,741 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:38,741 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:38,741 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-10 20:23:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 529 transitions. [2020-07-10 20:23:38,756 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 529 transitions. Word has length 120 [2020-07-10 20:23:38,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:38,756 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 529 transitions. [2020-07-10 20:23:38,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-10 20:23:38,756 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 398 states and 529 transitions. [2020-07-10 20:23:39,668 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 529 edges. 529 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:39,668 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 529 transitions. [2020-07-10 20:23:39,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-10 20:23:39,671 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:39,671 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] [2020-07-10 20:23:39,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-10 20:23:39,671 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:39,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:39,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1668448602, now seen corresponding path program 1 times [2020-07-10 20:23:39,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:39,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049905711] [2020-07-10 20:23:39,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,839 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,839 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-10 20:23:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,843 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,844 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,844 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,845 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,850 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,851 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,851 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,852 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,855 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,855 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,856 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,856 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,860 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,860 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,860 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,861 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,865 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,865 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,865 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,866 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,869 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,870 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,870 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,870 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,875 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,875 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,875 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,876 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,880 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,881 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,881 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,882 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,885 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,886 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,886 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,887 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,890 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,890 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,890 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,891 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,896 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,896 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,896 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,897 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,901 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,901 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,902 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,902 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,906 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,906 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,906 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,907 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,912 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,912 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,912 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,913 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,917 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,917 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,917 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,918 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,923 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,924 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,924 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,925 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:39,928 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,929 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,929 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,930 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:39,930 INFO L263 TraceCheckUtils]: 0: Hoare triple {23462#true} call ULTIMATE.init(); {23462#true} is VALID [2020-07-10 20:23:39,930 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,930 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-10 20:23:39,931 INFO L263 TraceCheckUtils]: 3: Hoare triple {23462#true} call #t~ret10 := main(); {23462#true} is VALID [2020-07-10 20:23:39,931 INFO L280 TraceCheckUtils]: 4: Hoare triple {23462#true} havoc ~len~0; {23462#true} is VALID [2020-07-10 20:23:39,931 INFO L280 TraceCheckUtils]: 5: Hoare triple {23462#true} havoc ~i~0; {23462#true} is VALID [2020-07-10 20:23:39,931 INFO L280 TraceCheckUtils]: 6: Hoare triple {23462#true} havoc ~j~0; {23462#true} is VALID [2020-07-10 20:23:39,931 INFO L280 TraceCheckUtils]: 7: Hoare triple {23462#true} havoc ~bufsize~0; {23462#true} is VALID [2020-07-10 20:23:39,932 INFO L280 TraceCheckUtils]: 8: Hoare triple {23462#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {23462#true} is VALID [2020-07-10 20:23:39,932 INFO L280 TraceCheckUtils]: 9: Hoare triple {23462#true} ~bufsize~0 := #t~nondet0; {23462#true} is VALID [2020-07-10 20:23:39,932 INFO L280 TraceCheckUtils]: 10: Hoare triple {23462#true} havoc #t~nondet0; {23462#true} is VALID [2020-07-10 20:23:39,932 INFO L280 TraceCheckUtils]: 11: Hoare triple {23462#true} assume !(~bufsize~0 < 0); {23462#true} is VALID [2020-07-10 20:23:39,932 INFO L280 TraceCheckUtils]: 12: Hoare triple {23462#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {23462#true} is VALID [2020-07-10 20:23:39,933 INFO L280 TraceCheckUtils]: 13: Hoare triple {23462#true} ~len~0 := #t~nondet1; {23462#true} is VALID [2020-07-10 20:23:39,933 INFO L280 TraceCheckUtils]: 14: Hoare triple {23462#true} havoc #t~nondet1; {23462#true} is VALID [2020-07-10 20:23:39,933 INFO L280 TraceCheckUtils]: 15: Hoare triple {23462#true} ~limit~0 := ~bufsize~0 - 4; {23462#true} is VALID [2020-07-10 20:23:39,933 INFO L280 TraceCheckUtils]: 16: Hoare triple {23462#true} ~i~0 := 0; {23462#true} is VALID [2020-07-10 20:23:39,933 INFO L280 TraceCheckUtils]: 17: Hoare triple {23462#true} assume !!(~i~0 < ~len~0); {23462#true} is VALID [2020-07-10 20:23:39,935 INFO L280 TraceCheckUtils]: 18: Hoare triple {23462#true} ~j~0 := 0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,935 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 [2020-07-10 20:23:39,936 INFO L280 TraceCheckUtils]: 20: Hoare triple {23466#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,936 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 [2020-07-10 20:23:39,936 INFO L280 TraceCheckUtils]: 22: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,936 INFO L280 TraceCheckUtils]: 23: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,937 INFO L280 TraceCheckUtils]: 24: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,937 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,938 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 [2020-07-10 20:23:39,938 INFO L280 TraceCheckUtils]: 27: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,938 INFO L280 TraceCheckUtils]: 28: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,938 INFO L280 TraceCheckUtils]: 29: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,939 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,939 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 [2020-07-10 20:23:39,940 INFO L280 TraceCheckUtils]: 32: Hoare triple {23466#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,941 INFO L280 TraceCheckUtils]: 33: Hoare triple {23466#(<= 0 main_~j~0)} havoc #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,942 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 [2020-07-10 20:23:39,942 INFO L280 TraceCheckUtils]: 35: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,942 INFO L280 TraceCheckUtils]: 36: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,942 INFO L280 TraceCheckUtils]: 37: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,943 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,943 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 [2020-07-10 20:23:39,944 INFO L280 TraceCheckUtils]: 40: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,944 INFO L280 TraceCheckUtils]: 41: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,944 INFO L280 TraceCheckUtils]: 42: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,945 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,945 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 [2020-07-10 20:23:39,945 INFO L280 TraceCheckUtils]: 45: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,945 INFO L280 TraceCheckUtils]: 46: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,945 INFO L280 TraceCheckUtils]: 47: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,946 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,946 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 [2020-07-10 20:23:39,947 INFO L280 TraceCheckUtils]: 50: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,947 INFO L280 TraceCheckUtils]: 51: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,947 INFO L280 TraceCheckUtils]: 52: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,948 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:39,948 INFO L280 TraceCheckUtils]: 54: Hoare triple {23466#(<= 0 main_~j~0)} #t~post8 := ~j~0; {23491#(<= 0 |main_#t~post8|)} is VALID [2020-07-10 20:23:39,949 INFO L280 TraceCheckUtils]: 55: Hoare triple {23491#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,950 INFO L280 TraceCheckUtils]: 56: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,951 INFO L280 TraceCheckUtils]: 57: Hoare triple {23492#(<= 1 main_~j~0)} #t~post9 := ~i~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,952 INFO L280 TraceCheckUtils]: 58: Hoare triple {23492#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,952 INFO L280 TraceCheckUtils]: 59: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,953 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 [2020-07-10 20:23:39,953 INFO L280 TraceCheckUtils]: 61: Hoare triple {23492#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,953 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 [2020-07-10 20:23:39,954 INFO L280 TraceCheckUtils]: 63: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,954 INFO L280 TraceCheckUtils]: 64: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,954 INFO L280 TraceCheckUtils]: 65: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,955 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,955 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 [2020-07-10 20:23:39,955 INFO L280 TraceCheckUtils]: 68: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,956 INFO L280 TraceCheckUtils]: 69: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,956 INFO L280 TraceCheckUtils]: 70: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,957 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,957 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 [2020-07-10 20:23:39,958 INFO L280 TraceCheckUtils]: 73: Hoare triple {23492#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,958 INFO L280 TraceCheckUtils]: 74: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~nondet2; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,959 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 [2020-07-10 20:23:39,959 INFO L280 TraceCheckUtils]: 76: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,959 INFO L280 TraceCheckUtils]: 77: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,959 INFO L280 TraceCheckUtils]: 78: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,960 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,960 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 [2020-07-10 20:23:39,960 INFO L280 TraceCheckUtils]: 81: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,960 INFO L280 TraceCheckUtils]: 82: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,961 INFO L280 TraceCheckUtils]: 83: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,961 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,962 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 [2020-07-10 20:23:39,962 INFO L280 TraceCheckUtils]: 86: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,962 INFO L280 TraceCheckUtils]: 87: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,962 INFO L280 TraceCheckUtils]: 88: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,963 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,963 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 [2020-07-10 20:23:39,963 INFO L280 TraceCheckUtils]: 91: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,963 INFO L280 TraceCheckUtils]: 92: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,963 INFO L280 TraceCheckUtils]: 93: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,964 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:39,965 INFO L280 TraceCheckUtils]: 95: Hoare triple {23492#(<= 1 main_~j~0)} #t~post3 := ~j~0; {23517#(<= 1 |main_#t~post3|)} is VALID [2020-07-10 20:23:39,965 INFO L280 TraceCheckUtils]: 96: Hoare triple {23517#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,966 INFO L280 TraceCheckUtils]: 97: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,967 INFO L280 TraceCheckUtils]: 98: Hoare triple {23518#(<= 2 main_~j~0)} #t~post4 := ~i~0; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,967 INFO L280 TraceCheckUtils]: 99: Hoare triple {23518#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,968 INFO L280 TraceCheckUtils]: 100: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,969 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 [2020-07-10 20:23:39,969 INFO L280 TraceCheckUtils]: 102: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,969 INFO L280 TraceCheckUtils]: 103: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,969 INFO L280 TraceCheckUtils]: 104: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,972 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,972 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 [2020-07-10 20:23:39,972 INFO L280 TraceCheckUtils]: 107: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,972 INFO L280 TraceCheckUtils]: 108: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,973 INFO L280 TraceCheckUtils]: 109: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,974 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,975 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 [2020-07-10 20:23:39,975 INFO L280 TraceCheckUtils]: 112: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,975 INFO L280 TraceCheckUtils]: 113: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,975 INFO L280 TraceCheckUtils]: 114: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,976 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,976 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 [2020-07-10 20:23:39,977 INFO L280 TraceCheckUtils]: 117: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,977 INFO L280 TraceCheckUtils]: 118: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,977 INFO L280 TraceCheckUtils]: 119: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,978 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:39,978 INFO L280 TraceCheckUtils]: 121: Hoare triple {23518#(<= 2 main_~j~0)} #t~post5 := ~j~0; {23535#(<= 2 |main_#t~post5|)} is VALID [2020-07-10 20:23:39,979 INFO L280 TraceCheckUtils]: 122: Hoare triple {23535#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:39,980 INFO L280 TraceCheckUtils]: 123: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:39,980 INFO L280 TraceCheckUtils]: 124: Hoare triple {23536#(<= 3 main_~j~0)} #t~post6 := ~i~0; {23536#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:39,981 INFO L280 TraceCheckUtils]: 125: Hoare triple {23536#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:39,981 INFO L280 TraceCheckUtils]: 126: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:39,982 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 [2020-07-10 20:23:39,982 INFO L280 TraceCheckUtils]: 128: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-10 20:23:39,982 INFO L280 TraceCheckUtils]: 129: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-10 20:23:39,982 INFO L280 TraceCheckUtils]: 130: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-10 20:23:39,983 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-10 20:23:39,984 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 [2020-07-10 20:23:39,985 INFO L280 TraceCheckUtils]: 133: Hoare triple {23541#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {23542#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:39,985 INFO L280 TraceCheckUtils]: 134: Hoare triple {23542#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {23463#false} is VALID [2020-07-10 20:23:39,986 INFO L280 TraceCheckUtils]: 135: Hoare triple {23463#false} assume !false; {23463#false} is VALID [2020-07-10 20:23:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-10 20:23:39,999 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:39,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049905711] [2020-07-10 20:23:39,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:40,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-10 20:23:40,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698021636] [2020-07-10 20:23:40,001 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-10 20:23:40,001 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:40,001 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-10 20:23:40,120 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:40,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-10 20:23:40,120 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:40,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-10 20:23:40,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-10 20:23:40,121 INFO L87 Difference]: Start difference. First operand 398 states and 529 transitions. Second operand 11 states. [2020-07-10 20:23:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:42,826 INFO L93 Difference]: Finished difference Result 432 states and 566 transitions. [2020-07-10 20:23:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-10 20:23:42,826 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-10 20:23:42,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:42,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:42,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-10 20:23:42,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:42,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-10 20:23:42,831 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 189 transitions. [2020-07-10 20:23:43,072 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:43,083 INFO L225 Difference]: With dead ends: 432 [2020-07-10 20:23:43,083 INFO L226 Difference]: Without dead ends: 430 [2020-07-10 20:23:43,084 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 [2020-07-10 20:23:43,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-07-10 20:23:44,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 410. [2020-07-10 20:23:44,175 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:44,175 INFO L82 GeneralOperation]: Start isEquivalent. First operand 430 states. Second operand 410 states. [2020-07-10 20:23:44,175 INFO L74 IsIncluded]: Start isIncluded. First operand 430 states. Second operand 410 states. [2020-07-10 20:23:44,176 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 410 states. [2020-07-10 20:23:44,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:44,189 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-10 20:23:44,189 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-10 20:23:44,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:44,190 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:44,190 INFO L74 IsIncluded]: Start isIncluded. First operand 410 states. Second operand 430 states. [2020-07-10 20:23:44,190 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 430 states. [2020-07-10 20:23:44,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:44,206 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-10 20:23:44,206 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-10 20:23:44,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:44,208 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:44,208 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:44,209 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:44,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-07-10 20:23:44,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 542 transitions. [2020-07-10 20:23:44,223 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 542 transitions. Word has length 136 [2020-07-10 20:23:44,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:44,224 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 542 transitions. [2020-07-10 20:23:44,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-10 20:23:44,224 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 410 states and 542 transitions. [2020-07-10 20:23:45,173 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 542 edges. 542 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 542 transitions. [2020-07-10 20:23:45,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-10 20:23:45,176 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:45,176 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] [2020-07-10 20:23:45,177 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-10 20:23:45,177 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:45,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:45,177 INFO L82 PathProgramCache]: Analyzing trace with hash 362381850, now seen corresponding path program 1 times [2020-07-10 20:23:45,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:45,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41227016] [2020-07-10 20:23:45,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:45,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,337 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,337 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-10 20:23:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,341 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,341 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,341 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,342 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,345 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,346 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,346 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,347 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,350 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,350 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,351 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,351 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,361 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,362 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,362 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,363 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,367 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,367 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,367 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,368 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,371 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,372 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,372 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,373 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,380 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,380 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,380 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,381 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,384 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,385 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,385 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,386 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,395 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,395 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,395 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,396 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,400 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,400 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,400 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,401 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,404 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,404 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,404 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,405 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,416 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,417 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,417 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,418 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,421 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,421 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,422 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,422 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,426 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,426 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,426 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,427 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,431 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,431 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,431 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,432 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,436 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,436 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,437 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,441 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,446 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,447 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,447 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,448 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,452 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,452 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,452 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,453 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:45,457 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,458 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,458 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,459 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,459 INFO L263 TraceCheckUtils]: 0: Hoare triple {26103#true} call ULTIMATE.init(); {26103#true} is VALID [2020-07-10 20:23:45,459 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,459 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-10 20:23:45,460 INFO L263 TraceCheckUtils]: 3: Hoare triple {26103#true} call #t~ret10 := main(); {26103#true} is VALID [2020-07-10 20:23:45,460 INFO L280 TraceCheckUtils]: 4: Hoare triple {26103#true} havoc ~len~0; {26103#true} is VALID [2020-07-10 20:23:45,460 INFO L280 TraceCheckUtils]: 5: Hoare triple {26103#true} havoc ~i~0; {26103#true} is VALID [2020-07-10 20:23:45,460 INFO L280 TraceCheckUtils]: 6: Hoare triple {26103#true} havoc ~j~0; {26103#true} is VALID [2020-07-10 20:23:45,460 INFO L280 TraceCheckUtils]: 7: Hoare triple {26103#true} havoc ~bufsize~0; {26103#true} is VALID [2020-07-10 20:23:45,461 INFO L280 TraceCheckUtils]: 8: Hoare triple {26103#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {26103#true} is VALID [2020-07-10 20:23:45,461 INFO L280 TraceCheckUtils]: 9: Hoare triple {26103#true} ~bufsize~0 := #t~nondet0; {26103#true} is VALID [2020-07-10 20:23:45,461 INFO L280 TraceCheckUtils]: 10: Hoare triple {26103#true} havoc #t~nondet0; {26103#true} is VALID [2020-07-10 20:23:45,461 INFO L280 TraceCheckUtils]: 11: Hoare triple {26103#true} assume !(~bufsize~0 < 0); {26103#true} is VALID [2020-07-10 20:23:45,461 INFO L280 TraceCheckUtils]: 12: Hoare triple {26103#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {26103#true} is VALID [2020-07-10 20:23:45,462 INFO L280 TraceCheckUtils]: 13: Hoare triple {26103#true} ~len~0 := #t~nondet1; {26103#true} is VALID [2020-07-10 20:23:45,462 INFO L280 TraceCheckUtils]: 14: Hoare triple {26103#true} havoc #t~nondet1; {26103#true} is VALID [2020-07-10 20:23:45,462 INFO L280 TraceCheckUtils]: 15: Hoare triple {26103#true} ~limit~0 := ~bufsize~0 - 4; {26103#true} is VALID [2020-07-10 20:23:45,463 INFO L280 TraceCheckUtils]: 16: Hoare triple {26103#true} ~i~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,463 INFO L280 TraceCheckUtils]: 17: Hoare triple {26107#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,464 INFO L280 TraceCheckUtils]: 18: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,465 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 [2020-07-10 20:23:45,465 INFO L280 TraceCheckUtils]: 20: Hoare triple {26107#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,465 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 [2020-07-10 20:23:45,466 INFO L280 TraceCheckUtils]: 22: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,466 INFO L280 TraceCheckUtils]: 23: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,466 INFO L280 TraceCheckUtils]: 24: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,467 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,467 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 [2020-07-10 20:23:45,467 INFO L280 TraceCheckUtils]: 27: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,467 INFO L280 TraceCheckUtils]: 28: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,468 INFO L280 TraceCheckUtils]: 29: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,468 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,469 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 [2020-07-10 20:23:45,470 INFO L280 TraceCheckUtils]: 32: Hoare triple {26107#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,470 INFO L280 TraceCheckUtils]: 33: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,470 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 [2020-07-10 20:23:45,471 INFO L280 TraceCheckUtils]: 35: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,471 INFO L280 TraceCheckUtils]: 36: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,471 INFO L280 TraceCheckUtils]: 37: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,472 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,472 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 [2020-07-10 20:23:45,472 INFO L280 TraceCheckUtils]: 40: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,472 INFO L280 TraceCheckUtils]: 41: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,472 INFO L280 TraceCheckUtils]: 42: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,473 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,473 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 [2020-07-10 20:23:45,474 INFO L280 TraceCheckUtils]: 45: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,474 INFO L280 TraceCheckUtils]: 46: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,474 INFO L280 TraceCheckUtils]: 47: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,475 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,475 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 [2020-07-10 20:23:45,475 INFO L280 TraceCheckUtils]: 50: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,475 INFO L280 TraceCheckUtils]: 51: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,476 INFO L280 TraceCheckUtils]: 52: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,476 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,477 INFO L280 TraceCheckUtils]: 54: Hoare triple {26107#(<= 0 main_~i~0)} #t~post8 := ~j~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,478 INFO L280 TraceCheckUtils]: 55: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,478 INFO L280 TraceCheckUtils]: 56: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:45,479 INFO L280 TraceCheckUtils]: 57: Hoare triple {26107#(<= 0 main_~i~0)} #t~post9 := ~i~0; {26132#(<= 0 |main_#t~post9|)} is VALID [2020-07-10 20:23:45,480 INFO L280 TraceCheckUtils]: 58: Hoare triple {26132#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,480 INFO L280 TraceCheckUtils]: 59: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,481 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 [2020-07-10 20:23:45,481 INFO L280 TraceCheckUtils]: 61: Hoare triple {26133#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,482 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 [2020-07-10 20:23:45,482 INFO L280 TraceCheckUtils]: 63: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,482 INFO L280 TraceCheckUtils]: 64: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,482 INFO L280 TraceCheckUtils]: 65: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,483 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,483 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 [2020-07-10 20:23:45,483 INFO L280 TraceCheckUtils]: 68: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,484 INFO L280 TraceCheckUtils]: 69: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,484 INFO L280 TraceCheckUtils]: 70: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,485 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,485 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 [2020-07-10 20:23:45,486 INFO L280 TraceCheckUtils]: 73: Hoare triple {26133#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,486 INFO L280 TraceCheckUtils]: 74: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~nondet2; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,487 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 [2020-07-10 20:23:45,487 INFO L280 TraceCheckUtils]: 76: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,487 INFO L280 TraceCheckUtils]: 77: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,487 INFO L280 TraceCheckUtils]: 78: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,488 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,488 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 [2020-07-10 20:23:45,488 INFO L280 TraceCheckUtils]: 81: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,489 INFO L280 TraceCheckUtils]: 82: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,489 INFO L280 TraceCheckUtils]: 83: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,489 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,490 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 [2020-07-10 20:23:45,490 INFO L280 TraceCheckUtils]: 86: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,490 INFO L280 TraceCheckUtils]: 87: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,490 INFO L280 TraceCheckUtils]: 88: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,491 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,491 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 [2020-07-10 20:23:45,492 INFO L280 TraceCheckUtils]: 91: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,492 INFO L280 TraceCheckUtils]: 92: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,492 INFO L280 TraceCheckUtils]: 93: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,493 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,493 INFO L280 TraceCheckUtils]: 95: Hoare triple {26133#(<= 1 main_~i~0)} #t~post3 := ~j~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,494 INFO L280 TraceCheckUtils]: 96: Hoare triple {26133#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,495 INFO L280 TraceCheckUtils]: 97: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:45,495 INFO L280 TraceCheckUtils]: 98: Hoare triple {26133#(<= 1 main_~i~0)} #t~post4 := ~i~0; {26158#(<= 1 |main_#t~post4|)} is VALID [2020-07-10 20:23:45,496 INFO L280 TraceCheckUtils]: 99: Hoare triple {26158#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,497 INFO L280 TraceCheckUtils]: 100: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,497 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 [2020-07-10 20:23:45,497 INFO L280 TraceCheckUtils]: 102: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,497 INFO L280 TraceCheckUtils]: 103: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,497 INFO L280 TraceCheckUtils]: 104: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,498 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,499 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 [2020-07-10 20:23:45,499 INFO L280 TraceCheckUtils]: 107: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,499 INFO L280 TraceCheckUtils]: 108: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,499 INFO L280 TraceCheckUtils]: 109: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,500 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,500 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 [2020-07-10 20:23:45,500 INFO L280 TraceCheckUtils]: 112: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,500 INFO L280 TraceCheckUtils]: 113: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,501 INFO L280 TraceCheckUtils]: 114: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,501 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,502 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 [2020-07-10 20:23:45,502 INFO L280 TraceCheckUtils]: 117: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,502 INFO L280 TraceCheckUtils]: 118: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,502 INFO L280 TraceCheckUtils]: 119: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,503 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,504 INFO L280 TraceCheckUtils]: 121: Hoare triple {26159#(<= 2 main_~i~0)} #t~post5 := ~j~0; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,505 INFO L280 TraceCheckUtils]: 122: Hoare triple {26159#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,505 INFO L280 TraceCheckUtils]: 123: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:45,506 INFO L280 TraceCheckUtils]: 124: Hoare triple {26159#(<= 2 main_~i~0)} #t~post6 := ~i~0; {26176#(<= 2 |main_#t~post6|)} is VALID [2020-07-10 20:23:45,507 INFO L280 TraceCheckUtils]: 125: Hoare triple {26176#(<= 2 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,508 INFO L280 TraceCheckUtils]: 126: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,508 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 [2020-07-10 20:23:45,508 INFO L280 TraceCheckUtils]: 128: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,509 INFO L280 TraceCheckUtils]: 129: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,509 INFO L280 TraceCheckUtils]: 130: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,510 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,510 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 [2020-07-10 20:23:45,510 INFO L280 TraceCheckUtils]: 133: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,510 INFO L280 TraceCheckUtils]: 134: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,511 INFO L280 TraceCheckUtils]: 135: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,511 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,512 INFO L280 TraceCheckUtils]: 137: Hoare triple {26177#(<= 3 main_~i~0)} #t~post7 := ~j~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,513 INFO L280 TraceCheckUtils]: 138: Hoare triple {26177#(<= 3 main_~i~0)} ~j~0 := 1 + #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,513 INFO L280 TraceCheckUtils]: 139: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,514 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 [2020-07-10 20:23:45,515 INFO L280 TraceCheckUtils]: 141: Hoare triple {26177#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,515 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 [2020-07-10 20:23:45,515 INFO L280 TraceCheckUtils]: 143: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-10 20:23:45,515 INFO L280 TraceCheckUtils]: 144: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-10 20:23:45,516 INFO L280 TraceCheckUtils]: 145: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-10 20:23:45,517 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:45,517 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 [2020-07-10 20:23:45,518 INFO L280 TraceCheckUtils]: 148: Hoare triple {26190#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {26191#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:45,519 INFO L280 TraceCheckUtils]: 149: Hoare triple {26191#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {26104#false} is VALID [2020-07-10 20:23:45,519 INFO L280 TraceCheckUtils]: 150: Hoare triple {26104#false} assume !false; {26104#false} is VALID [2020-07-10 20:23:45,552 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-10 20:23:45,553 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:45,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41227016] [2020-07-10 20:23:45,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:45,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-10 20:23:45,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835583223] [2020-07-10 20:23:45,554 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-10 20:23:45,555 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:45,555 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-10 20:23:45,667 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:45,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-10 20:23:45,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:45,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-10 20:23:45,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-10 20:23:45,669 INFO L87 Difference]: Start difference. First operand 410 states and 542 transitions. Second operand 11 states. [2020-07-10 20:23:49,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:49,343 INFO L93 Difference]: Finished difference Result 645 states and 888 transitions. [2020-07-10 20:23:49,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-10 20:23:49,343 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-10 20:23:49,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:49,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-10 20:23:49,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-10 20:23:49,350 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-10 20:23:49,655 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:49,678 INFO L225 Difference]: With dead ends: 645 [2020-07-10 20:23:49,679 INFO L226 Difference]: Without dead ends: 639 [2020-07-10 20:23:49,679 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 [2020-07-10 20:23:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-07-10 20:23:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 572. [2020-07-10 20:23:51,235 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:51,235 INFO L82 GeneralOperation]: Start isEquivalent. First operand 639 states. Second operand 572 states. [2020-07-10 20:23:51,236 INFO L74 IsIncluded]: Start isIncluded. First operand 639 states. Second operand 572 states. [2020-07-10 20:23:51,236 INFO L87 Difference]: Start difference. First operand 639 states. Second operand 572 states. [2020-07-10 20:23:51,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:51,260 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-10 20:23:51,260 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-10 20:23:51,261 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:51,261 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:51,262 INFO L74 IsIncluded]: Start isIncluded. First operand 572 states. Second operand 639 states. [2020-07-10 20:23:51,262 INFO L87 Difference]: Start difference. First operand 572 states. Second operand 639 states. [2020-07-10 20:23:51,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:51,281 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-10 20:23:51,281 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-10 20:23:51,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:51,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:51,283 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:51,283 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-07-10 20:23:51,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 778 transitions. [2020-07-10 20:23:51,303 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 778 transitions. Word has length 151 [2020-07-10 20:23:51,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:51,303 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 778 transitions. [2020-07-10 20:23:51,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-10 20:23:51,304 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 572 states and 778 transitions. [2020-07-10 20:23:52,740 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 778 edges. 778 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:52,740 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 778 transitions. [2020-07-10 20:23:52,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-10 20:23:52,743 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:52,743 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] [2020-07-10 20:23:52,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-10 20:23:52,744 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:52,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:52,744 INFO L82 PathProgramCache]: Analyzing trace with hash -978309232, now seen corresponding path program 2 times [2020-07-10 20:23:52,744 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:52,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1957269332] [2020-07-10 20:23:52,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:52,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,907 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,907 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-10 20:23:52,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,911 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,912 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,912 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,913 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:52,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,916 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,916 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,917 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,917 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,921 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,921 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,921 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,922 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:52,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,925 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,926 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,926 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,927 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:52,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,930 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,930 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,930 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,931 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,934 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,935 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,935 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,936 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,939 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,940 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,940 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,941 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,945 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,945 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,945 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,946 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:52,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,953 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,954 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,954 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,955 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,960 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,960 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,961 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,963 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,967 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,968 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,968 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,969 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:52,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,974 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,974 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,975 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,976 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:52,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,980 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,981 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,981 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,982 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,988 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,988 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,988 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,989 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:52,995 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:52,995 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:52,996 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:52,997 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:53,001 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,002 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,002 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,003 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:53,008 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,008 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,008 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,009 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:53,014 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,014 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,015 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,016 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:53,020 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,020 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,021 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,022 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:53,022 INFO L263 TraceCheckUtils]: 0: Hoare triple {29924#true} call ULTIMATE.init(); {29924#true} is VALID [2020-07-10 20:23:53,022 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,022 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-10 20:23:53,023 INFO L263 TraceCheckUtils]: 3: Hoare triple {29924#true} call #t~ret10 := main(); {29924#true} is VALID [2020-07-10 20:23:53,023 INFO L280 TraceCheckUtils]: 4: Hoare triple {29924#true} havoc ~len~0; {29924#true} is VALID [2020-07-10 20:23:53,023 INFO L280 TraceCheckUtils]: 5: Hoare triple {29924#true} havoc ~i~0; {29924#true} is VALID [2020-07-10 20:23:53,023 INFO L280 TraceCheckUtils]: 6: Hoare triple {29924#true} havoc ~j~0; {29924#true} is VALID [2020-07-10 20:23:53,024 INFO L280 TraceCheckUtils]: 7: Hoare triple {29924#true} havoc ~bufsize~0; {29924#true} is VALID [2020-07-10 20:23:53,024 INFO L280 TraceCheckUtils]: 8: Hoare triple {29924#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {29924#true} is VALID [2020-07-10 20:23:53,024 INFO L280 TraceCheckUtils]: 9: Hoare triple {29924#true} ~bufsize~0 := #t~nondet0; {29924#true} is VALID [2020-07-10 20:23:53,024 INFO L280 TraceCheckUtils]: 10: Hoare triple {29924#true} havoc #t~nondet0; {29924#true} is VALID [2020-07-10 20:23:53,025 INFO L280 TraceCheckUtils]: 11: Hoare triple {29924#true} assume !(~bufsize~0 < 0); {29924#true} is VALID [2020-07-10 20:23:53,025 INFO L280 TraceCheckUtils]: 12: Hoare triple {29924#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {29924#true} is VALID [2020-07-10 20:23:53,025 INFO L280 TraceCheckUtils]: 13: Hoare triple {29924#true} ~len~0 := #t~nondet1; {29924#true} is VALID [2020-07-10 20:23:53,025 INFO L280 TraceCheckUtils]: 14: Hoare triple {29924#true} havoc #t~nondet1; {29924#true} is VALID [2020-07-10 20:23:53,026 INFO L280 TraceCheckUtils]: 15: Hoare triple {29924#true} ~limit~0 := ~bufsize~0 - 4; {29924#true} is VALID [2020-07-10 20:23:53,027 INFO L280 TraceCheckUtils]: 16: Hoare triple {29924#true} ~i~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,028 INFO L280 TraceCheckUtils]: 17: Hoare triple {29928#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,028 INFO L280 TraceCheckUtils]: 18: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,029 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 [2020-07-10 20:23:53,030 INFO L280 TraceCheckUtils]: 20: Hoare triple {29928#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,030 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 [2020-07-10 20:23:53,031 INFO L280 TraceCheckUtils]: 22: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,031 INFO L280 TraceCheckUtils]: 23: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,031 INFO L280 TraceCheckUtils]: 24: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,032 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,033 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 [2020-07-10 20:23:53,033 INFO L280 TraceCheckUtils]: 27: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,033 INFO L280 TraceCheckUtils]: 28: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,034 INFO L280 TraceCheckUtils]: 29: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,035 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,035 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 [2020-07-10 20:23:53,036 INFO L280 TraceCheckUtils]: 32: Hoare triple {29928#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,037 INFO L280 TraceCheckUtils]: 33: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~nondet2; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,037 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 [2020-07-10 20:23:53,038 INFO L280 TraceCheckUtils]: 35: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,038 INFO L280 TraceCheckUtils]: 36: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,038 INFO L280 TraceCheckUtils]: 37: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,039 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,040 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 [2020-07-10 20:23:53,040 INFO L280 TraceCheckUtils]: 40: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,040 INFO L280 TraceCheckUtils]: 41: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,041 INFO L280 TraceCheckUtils]: 42: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,041 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,042 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 [2020-07-10 20:23:53,042 INFO L280 TraceCheckUtils]: 45: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,042 INFO L280 TraceCheckUtils]: 46: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,043 INFO L280 TraceCheckUtils]: 47: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,045 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,045 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 [2020-07-10 20:23:53,046 INFO L280 TraceCheckUtils]: 50: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,046 INFO L280 TraceCheckUtils]: 51: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,046 INFO L280 TraceCheckUtils]: 52: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,047 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,048 INFO L280 TraceCheckUtils]: 54: Hoare triple {29928#(<= 0 main_~i~0)} #t~post3 := ~j~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,049 INFO L280 TraceCheckUtils]: 55: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,050 INFO L280 TraceCheckUtils]: 56: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-10 20:23:53,051 INFO L280 TraceCheckUtils]: 57: Hoare triple {29928#(<= 0 main_~i~0)} #t~post4 := ~i~0; {29953#(<= 0 |main_#t~post4|)} is VALID [2020-07-10 20:23:53,052 INFO L280 TraceCheckUtils]: 58: Hoare triple {29953#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,052 INFO L280 TraceCheckUtils]: 59: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,053 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 [2020-07-10 20:23:53,053 INFO L280 TraceCheckUtils]: 61: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,053 INFO L280 TraceCheckUtils]: 62: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,053 INFO L280 TraceCheckUtils]: 63: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,055 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,055 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 [2020-07-10 20:23:53,055 INFO L280 TraceCheckUtils]: 66: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,055 INFO L280 TraceCheckUtils]: 67: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,056 INFO L280 TraceCheckUtils]: 68: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,058 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,058 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 [2020-07-10 20:23:53,058 INFO L280 TraceCheckUtils]: 71: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,058 INFO L280 TraceCheckUtils]: 72: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,059 INFO L280 TraceCheckUtils]: 73: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,059 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,060 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 [2020-07-10 20:23:53,060 INFO L280 TraceCheckUtils]: 76: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,060 INFO L280 TraceCheckUtils]: 77: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,060 INFO L280 TraceCheckUtils]: 78: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,061 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,062 INFO L280 TraceCheckUtils]: 80: Hoare triple {29954#(<= 1 main_~i~0)} #t~post5 := ~j~0; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,062 INFO L280 TraceCheckUtils]: 81: Hoare triple {29954#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,063 INFO L280 TraceCheckUtils]: 82: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-10 20:23:53,063 INFO L280 TraceCheckUtils]: 83: Hoare triple {29954#(<= 1 main_~i~0)} #t~post6 := ~i~0; {29971#(<= 1 |main_#t~post6|)} is VALID [2020-07-10 20:23:53,064 INFO L280 TraceCheckUtils]: 84: Hoare triple {29971#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,065 INFO L280 TraceCheckUtils]: 85: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,065 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 [2020-07-10 20:23:53,065 INFO L280 TraceCheckUtils]: 87: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,065 INFO L280 TraceCheckUtils]: 88: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,066 INFO L280 TraceCheckUtils]: 89: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,066 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,067 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 [2020-07-10 20:23:53,067 INFO L280 TraceCheckUtils]: 92: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,067 INFO L280 TraceCheckUtils]: 93: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,067 INFO L280 TraceCheckUtils]: 94: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,068 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,068 INFO L280 TraceCheckUtils]: 96: Hoare triple {29972#(<= 2 main_~i~0)} #t~post7 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,069 INFO L280 TraceCheckUtils]: 97: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,070 INFO L280 TraceCheckUtils]: 98: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,072 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 [2020-07-10 20:23:53,072 INFO L280 TraceCheckUtils]: 100: Hoare triple {29972#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,073 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 [2020-07-10 20:23:53,073 INFO L280 TraceCheckUtils]: 102: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,073 INFO L280 TraceCheckUtils]: 103: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,074 INFO L280 TraceCheckUtils]: 104: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,075 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,075 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 [2020-07-10 20:23:53,075 INFO L280 TraceCheckUtils]: 107: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,076 INFO L280 TraceCheckUtils]: 108: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,076 INFO L280 TraceCheckUtils]: 109: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,077 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,078 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 [2020-07-10 20:23:53,079 INFO L280 TraceCheckUtils]: 112: Hoare triple {29972#(<= 2 main_~i~0)} assume 0 != #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,080 INFO L280 TraceCheckUtils]: 113: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,080 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 [2020-07-10 20:23:53,080 INFO L280 TraceCheckUtils]: 115: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,081 INFO L280 TraceCheckUtils]: 116: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,081 INFO L280 TraceCheckUtils]: 117: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,082 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,082 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 [2020-07-10 20:23:53,083 INFO L280 TraceCheckUtils]: 120: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,083 INFO L280 TraceCheckUtils]: 121: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,083 INFO L280 TraceCheckUtils]: 122: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,084 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,085 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 [2020-07-10 20:23:53,085 INFO L280 TraceCheckUtils]: 125: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,085 INFO L280 TraceCheckUtils]: 126: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,086 INFO L280 TraceCheckUtils]: 127: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,087 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,087 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 [2020-07-10 20:23:53,087 INFO L280 TraceCheckUtils]: 130: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,088 INFO L280 TraceCheckUtils]: 131: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,088 INFO L280 TraceCheckUtils]: 132: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,089 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,090 INFO L280 TraceCheckUtils]: 134: Hoare triple {29972#(<= 2 main_~i~0)} #t~post8 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,091 INFO L280 TraceCheckUtils]: 135: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,091 INFO L280 TraceCheckUtils]: 136: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-10 20:23:53,092 INFO L280 TraceCheckUtils]: 137: Hoare triple {29972#(<= 2 main_~i~0)} #t~post9 := ~i~0; {30005#(<= 2 |main_#t~post9|)} is VALID [2020-07-10 20:23:53,094 INFO L280 TraceCheckUtils]: 138: Hoare triple {30005#(<= 2 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:53,094 INFO L280 TraceCheckUtils]: 139: Hoare triple {30006#(<= 3 main_~i~0)} havoc #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:53,095 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 [2020-07-10 20:23:53,096 INFO L280 TraceCheckUtils]: 141: Hoare triple {30006#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {30006#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:53,096 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 [2020-07-10 20:23:53,097 INFO L280 TraceCheckUtils]: 143: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-10 20:23:53,097 INFO L280 TraceCheckUtils]: 144: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-10 20:23:53,097 INFO L280 TraceCheckUtils]: 145: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-10 20:23:53,099 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-10 20:23:53,101 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 [2020-07-10 20:23:53,102 INFO L280 TraceCheckUtils]: 148: Hoare triple {30011#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {30012#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:23:53,103 INFO L280 TraceCheckUtils]: 149: Hoare triple {30012#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {29925#false} is VALID [2020-07-10 20:23:53,103 INFO L280 TraceCheckUtils]: 150: Hoare triple {29925#false} assume !false; {29925#false} is VALID [2020-07-10 20:23:53,134 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-10 20:23:53,134 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:23:53,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1957269332] [2020-07-10 20:23:53,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:23:53,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-10 20:23:53,135 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421079840] [2020-07-10 20:23:53,136 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-10 20:23:53,136 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:23:53,136 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-10 20:23:53,282 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:53,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-10 20:23:53,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:23:53,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-10 20:23:53,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-10 20:23:53,283 INFO L87 Difference]: Start difference. First operand 572 states and 778 transitions. Second operand 11 states. [2020-07-10 20:23:56,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:56,963 INFO L93 Difference]: Finished difference Result 647 states and 885 transitions. [2020-07-10 20:23:56,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-10 20:23:56,963 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-10 20:23:56,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:23:56,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:56,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-10 20:23:56,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-10 20:23:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-10 20:23:56,967 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-10 20:23:57,269 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:57,292 INFO L225 Difference]: With dead ends: 647 [2020-07-10 20:23:57,292 INFO L226 Difference]: Without dead ends: 641 [2020-07-10 20:23:57,293 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 [2020-07-10 20:23:57,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-07-10 20:23:58,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 412. [2020-07-10 20:23:58,468 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:23:58,468 INFO L82 GeneralOperation]: Start isEquivalent. First operand 641 states. Second operand 412 states. [2020-07-10 20:23:58,468 INFO L74 IsIncluded]: Start isIncluded. First operand 641 states. Second operand 412 states. [2020-07-10 20:23:58,469 INFO L87 Difference]: Start difference. First operand 641 states. Second operand 412 states. [2020-07-10 20:23:58,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:58,502 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-10 20:23:58,503 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-10 20:23:58,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:58,505 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:58,505 INFO L74 IsIncluded]: Start isIncluded. First operand 412 states. Second operand 641 states. [2020-07-10 20:23:58,506 INFO L87 Difference]: Start difference. First operand 412 states. Second operand 641 states. [2020-07-10 20:23:58,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:23:58,541 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-10 20:23:58,541 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-10 20:23:58,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:23:58,544 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:23:58,544 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:23:58,544 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:23:58,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-10 20:23:58,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 539 transitions. [2020-07-10 20:23:58,561 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 539 transitions. Word has length 151 [2020-07-10 20:23:58,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:23:58,562 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 539 transitions. [2020-07-10 20:23:58,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-10 20:23:58,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 412 states and 539 transitions. [2020-07-10 20:23:59,674 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 539 edges. 539 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:23:59,675 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 539 transitions. [2020-07-10 20:23:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-10 20:23:59,677 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:23:59,678 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] [2020-07-10 20:23:59,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-10 20:23:59,678 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:23:59,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:23:59,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1688386477, now seen corresponding path program 1 times [2020-07-10 20:23:59,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:23:59,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849768181] [2020-07-10 20:23:59,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:23:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,905 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,906 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-10 20:23:59,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,915 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,916 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,916 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,917 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:59,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,921 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,922 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,922 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,922 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,925 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,926 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,926 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,927 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:59,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,931 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,931 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,932 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,932 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:59,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,936 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,937 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,937 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,938 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,941 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,941 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,942 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,942 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:23:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,947 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,947 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,947 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,948 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,951 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,952 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,952 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,953 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,956 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,957 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,957 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,958 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,961 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,961 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,961 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,962 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,965 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,966 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,966 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,967 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,970 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,970 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,970 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,971 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:23:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,974 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,974 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,974 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,975 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,979 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,980 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,980 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,981 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,984 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,985 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,985 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,985 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:59,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,992 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,993 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,993 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:23:59,994 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:23:59,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:23:59,998 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:23:59,998 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:23:59,998 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,003 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:00,009 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,009 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,009 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,010 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:00,014 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,014 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,015 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,015 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:00,019 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,019 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,019 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,020 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:00,029 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,030 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,030 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,031 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,032 INFO L263 TraceCheckUtils]: 0: Hoare triple {33433#true} call ULTIMATE.init(); {33433#true} is VALID [2020-07-10 20:24:00,032 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,032 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-10 20:24:00,033 INFO L263 TraceCheckUtils]: 3: Hoare triple {33433#true} call #t~ret10 := main(); {33433#true} is VALID [2020-07-10 20:24:00,033 INFO L280 TraceCheckUtils]: 4: Hoare triple {33433#true} havoc ~len~0; {33433#true} is VALID [2020-07-10 20:24:00,033 INFO L280 TraceCheckUtils]: 5: Hoare triple {33433#true} havoc ~i~0; {33433#true} is VALID [2020-07-10 20:24:00,033 INFO L280 TraceCheckUtils]: 6: Hoare triple {33433#true} havoc ~j~0; {33433#true} is VALID [2020-07-10 20:24:00,034 INFO L280 TraceCheckUtils]: 7: Hoare triple {33433#true} havoc ~bufsize~0; {33433#true} is VALID [2020-07-10 20:24:00,034 INFO L280 TraceCheckUtils]: 8: Hoare triple {33433#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {33433#true} is VALID [2020-07-10 20:24:00,034 INFO L280 TraceCheckUtils]: 9: Hoare triple {33433#true} ~bufsize~0 := #t~nondet0; {33433#true} is VALID [2020-07-10 20:24:00,034 INFO L280 TraceCheckUtils]: 10: Hoare triple {33433#true} havoc #t~nondet0; {33433#true} is VALID [2020-07-10 20:24:00,035 INFO L280 TraceCheckUtils]: 11: Hoare triple {33433#true} assume !(~bufsize~0 < 0); {33433#true} is VALID [2020-07-10 20:24:00,035 INFO L280 TraceCheckUtils]: 12: Hoare triple {33433#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {33433#true} is VALID [2020-07-10 20:24:00,035 INFO L280 TraceCheckUtils]: 13: Hoare triple {33433#true} ~len~0 := #t~nondet1; {33433#true} is VALID [2020-07-10 20:24:00,036 INFO L280 TraceCheckUtils]: 14: Hoare triple {33433#true} havoc #t~nondet1; {33433#true} is VALID [2020-07-10 20:24:00,036 INFO L280 TraceCheckUtils]: 15: Hoare triple {33433#true} ~limit~0 := ~bufsize~0 - 4; {33433#true} is VALID [2020-07-10 20:24:00,036 INFO L280 TraceCheckUtils]: 16: Hoare triple {33433#true} ~i~0 := 0; {33433#true} is VALID [2020-07-10 20:24:00,036 INFO L280 TraceCheckUtils]: 17: Hoare triple {33433#true} assume !!(~i~0 < ~len~0); {33433#true} is VALID [2020-07-10 20:24:00,037 INFO L280 TraceCheckUtils]: 18: Hoare triple {33433#true} ~j~0 := 0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,038 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 [2020-07-10 20:24:00,038 INFO L280 TraceCheckUtils]: 20: Hoare triple {33437#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,038 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 [2020-07-10 20:24:00,039 INFO L280 TraceCheckUtils]: 22: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,039 INFO L280 TraceCheckUtils]: 23: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,039 INFO L280 TraceCheckUtils]: 24: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,040 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,040 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 [2020-07-10 20:24:00,040 INFO L280 TraceCheckUtils]: 27: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,040 INFO L280 TraceCheckUtils]: 28: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,041 INFO L280 TraceCheckUtils]: 29: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,042 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,043 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 [2020-07-10 20:24:00,044 INFO L280 TraceCheckUtils]: 32: Hoare triple {33437#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,044 INFO L280 TraceCheckUtils]: 33: Hoare triple {33437#(<= 0 main_~j~0)} havoc #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,045 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 [2020-07-10 20:24:00,045 INFO L280 TraceCheckUtils]: 35: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,045 INFO L280 TraceCheckUtils]: 36: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,046 INFO L280 TraceCheckUtils]: 37: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,047 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,047 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 [2020-07-10 20:24:00,047 INFO L280 TraceCheckUtils]: 40: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,048 INFO L280 TraceCheckUtils]: 41: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,048 INFO L280 TraceCheckUtils]: 42: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,049 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,049 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 [2020-07-10 20:24:00,049 INFO L280 TraceCheckUtils]: 45: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,050 INFO L280 TraceCheckUtils]: 46: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,050 INFO L280 TraceCheckUtils]: 47: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,051 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,051 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 [2020-07-10 20:24:00,051 INFO L280 TraceCheckUtils]: 50: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,051 INFO L280 TraceCheckUtils]: 51: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,052 INFO L280 TraceCheckUtils]: 52: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,052 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:00,053 INFO L280 TraceCheckUtils]: 54: Hoare triple {33437#(<= 0 main_~j~0)} #t~post8 := ~j~0; {33462#(<= 0 |main_#t~post8|)} is VALID [2020-07-10 20:24:00,054 INFO L280 TraceCheckUtils]: 55: Hoare triple {33462#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,055 INFO L280 TraceCheckUtils]: 56: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,055 INFO L280 TraceCheckUtils]: 57: Hoare triple {33463#(<= 1 main_~j~0)} #t~post9 := ~i~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,056 INFO L280 TraceCheckUtils]: 58: Hoare triple {33463#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,057 INFO L280 TraceCheckUtils]: 59: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,058 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 [2020-07-10 20:24:00,059 INFO L280 TraceCheckUtils]: 61: Hoare triple {33463#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,059 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 [2020-07-10 20:24:00,059 INFO L280 TraceCheckUtils]: 63: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,060 INFO L280 TraceCheckUtils]: 64: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,060 INFO L280 TraceCheckUtils]: 65: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,061 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,061 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 [2020-07-10 20:24:00,061 INFO L280 TraceCheckUtils]: 68: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,061 INFO L280 TraceCheckUtils]: 69: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,062 INFO L280 TraceCheckUtils]: 70: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,062 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,063 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 [2020-07-10 20:24:00,064 INFO L280 TraceCheckUtils]: 73: Hoare triple {33463#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,064 INFO L280 TraceCheckUtils]: 74: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~nondet2; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,064 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 [2020-07-10 20:24:00,065 INFO L280 TraceCheckUtils]: 76: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,065 INFO L280 TraceCheckUtils]: 77: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,065 INFO L280 TraceCheckUtils]: 78: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,066 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,066 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 [2020-07-10 20:24:00,066 INFO L280 TraceCheckUtils]: 81: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,066 INFO L280 TraceCheckUtils]: 82: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,067 INFO L280 TraceCheckUtils]: 83: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,067 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,068 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 [2020-07-10 20:24:00,068 INFO L280 TraceCheckUtils]: 86: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,068 INFO L280 TraceCheckUtils]: 87: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,068 INFO L280 TraceCheckUtils]: 88: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,069 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,069 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 [2020-07-10 20:24:00,070 INFO L280 TraceCheckUtils]: 91: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,070 INFO L280 TraceCheckUtils]: 92: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,070 INFO L280 TraceCheckUtils]: 93: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,071 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:00,072 INFO L280 TraceCheckUtils]: 95: Hoare triple {33463#(<= 1 main_~j~0)} #t~post3 := ~j~0; {33488#(<= 1 |main_#t~post3|)} is VALID [2020-07-10 20:24:00,073 INFO L280 TraceCheckUtils]: 96: Hoare triple {33488#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,074 INFO L280 TraceCheckUtils]: 97: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,075 INFO L280 TraceCheckUtils]: 98: Hoare triple {33489#(<= 2 main_~j~0)} #t~post4 := ~i~0; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,075 INFO L280 TraceCheckUtils]: 99: Hoare triple {33489#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,076 INFO L280 TraceCheckUtils]: 100: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,076 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 [2020-07-10 20:24:00,077 INFO L280 TraceCheckUtils]: 102: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,077 INFO L280 TraceCheckUtils]: 103: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,077 INFO L280 TraceCheckUtils]: 104: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,078 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,078 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 [2020-07-10 20:24:00,078 INFO L280 TraceCheckUtils]: 107: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,079 INFO L280 TraceCheckUtils]: 108: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,079 INFO L280 TraceCheckUtils]: 109: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,080 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,080 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 [2020-07-10 20:24:00,080 INFO L280 TraceCheckUtils]: 112: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,080 INFO L280 TraceCheckUtils]: 113: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,081 INFO L280 TraceCheckUtils]: 114: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,081 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,082 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 [2020-07-10 20:24:00,082 INFO L280 TraceCheckUtils]: 117: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,082 INFO L280 TraceCheckUtils]: 118: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,082 INFO L280 TraceCheckUtils]: 119: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,083 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:00,084 INFO L280 TraceCheckUtils]: 121: Hoare triple {33489#(<= 2 main_~j~0)} #t~post5 := ~j~0; {33506#(<= 2 |main_#t~post5|)} is VALID [2020-07-10 20:24:00,085 INFO L280 TraceCheckUtils]: 122: Hoare triple {33506#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,086 INFO L280 TraceCheckUtils]: 123: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,087 INFO L280 TraceCheckUtils]: 124: Hoare triple {33507#(<= 3 main_~j~0)} #t~post6 := ~i~0; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,088 INFO L280 TraceCheckUtils]: 125: Hoare triple {33507#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,089 INFO L280 TraceCheckUtils]: 126: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,089 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 [2020-07-10 20:24:00,089 INFO L280 TraceCheckUtils]: 128: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,089 INFO L280 TraceCheckUtils]: 129: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,089 INFO L280 TraceCheckUtils]: 130: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,090 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,090 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 [2020-07-10 20:24:00,091 INFO L280 TraceCheckUtils]: 133: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,091 INFO L280 TraceCheckUtils]: 134: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,091 INFO L280 TraceCheckUtils]: 135: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,092 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:00,093 INFO L280 TraceCheckUtils]: 137: Hoare triple {33507#(<= 3 main_~j~0)} #t~post7 := ~j~0; {33516#(<= 3 |main_#t~post7|)} is VALID [2020-07-10 20:24:00,094 INFO L280 TraceCheckUtils]: 138: Hoare triple {33516#(<= 3 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,094 INFO L280 TraceCheckUtils]: 139: Hoare triple {33517#(<= 4 main_~j~0)} havoc #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,095 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 [2020-07-10 20:24:00,095 INFO L280 TraceCheckUtils]: 141: Hoare triple {33517#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,096 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 [2020-07-10 20:24:00,096 INFO L280 TraceCheckUtils]: 143: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,096 INFO L280 TraceCheckUtils]: 144: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,096 INFO L280 TraceCheckUtils]: 145: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,097 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,097 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 [2020-07-10 20:24:00,098 INFO L280 TraceCheckUtils]: 148: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,098 INFO L280 TraceCheckUtils]: 149: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,098 INFO L280 TraceCheckUtils]: 150: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,099 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,099 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 [2020-07-10 20:24:00,099 INFO L280 TraceCheckUtils]: 153: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-10 20:24:00,099 INFO L280 TraceCheckUtils]: 154: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-10 20:24:00,100 INFO L280 TraceCheckUtils]: 155: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-10 20:24:00,100 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:00,101 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 [2020-07-10 20:24:00,102 INFO L280 TraceCheckUtils]: 158: Hoare triple {33530#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {33531#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:24:00,103 INFO L280 TraceCheckUtils]: 159: Hoare triple {33531#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {33434#false} is VALID [2020-07-10 20:24:00,103 INFO L280 TraceCheckUtils]: 160: Hoare triple {33434#false} assume !false; {33434#false} is VALID [2020-07-10 20:24:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-10 20:24:00,123 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:24:00,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849768181] [2020-07-10 20:24:00,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:24:00,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-10 20:24:00,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610077968] [2020-07-10 20:24:00,124 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-10 20:24:00,125 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:24:00,125 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-10 20:24:00,260 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:00,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-10 20:24:00,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:24:00,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-10 20:24:00,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-10 20:24:00,261 INFO L87 Difference]: Start difference. First operand 412 states and 539 transitions. Second operand 13 states. [2020-07-10 20:24:04,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:04,068 INFO L93 Difference]: Finished difference Result 505 states and 669 transitions. [2020-07-10 20:24:04,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-10 20:24:04,068 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-10 20:24:04,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:24:04,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 20:24:04,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-10 20:24:04,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 20:24:04,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-10 20:24:04,073 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 224 transitions. [2020-07-10 20:24:04,370 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 224 edges. 224 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:04,387 INFO L225 Difference]: With dead ends: 505 [2020-07-10 20:24:04,387 INFO L226 Difference]: Without dead ends: 495 [2020-07-10 20:24:04,388 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 [2020-07-10 20:24:04,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-10 20:24:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 459. [2020-07-10 20:24:05,694 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:24:05,695 INFO L82 GeneralOperation]: Start isEquivalent. First operand 495 states. Second operand 459 states. [2020-07-10 20:24:05,695 INFO L74 IsIncluded]: Start isIncluded. First operand 495 states. Second operand 459 states. [2020-07-10 20:24:05,695 INFO L87 Difference]: Start difference. First operand 495 states. Second operand 459 states. [2020-07-10 20:24:05,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:05,714 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-10 20:24:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-10 20:24:05,715 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:05,716 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:05,716 INFO L74 IsIncluded]: Start isIncluded. First operand 459 states. Second operand 495 states. [2020-07-10 20:24:05,716 INFO L87 Difference]: Start difference. First operand 459 states. Second operand 495 states. [2020-07-10 20:24:05,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:05,735 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-10 20:24:05,735 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-10 20:24:05,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:05,737 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:05,737 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:24:05,737 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:24:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-10 20:24:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 603 transitions. [2020-07-10 20:24:05,755 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 603 transitions. Word has length 161 [2020-07-10 20:24:05,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:24:05,755 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 603 transitions. [2020-07-10 20:24:05,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-10 20:24:05,755 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 459 states and 603 transitions. [2020-07-10 20:24:06,931 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 603 edges. 603 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:06,932 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 603 transitions. [2020-07-10 20:24:06,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-10 20:24:06,934 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 20:24:06,934 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] [2020-07-10 20:24:06,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-10 20:24:06,934 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 20:24:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 20:24:06,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1620079197, now seen corresponding path program 2 times [2020-07-10 20:24:06,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-10 20:24:06,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1184269298] [2020-07-10 20:24:06,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 20:24:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,143 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,144 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-10 20:24:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,147 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,148 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,148 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,149 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,152 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,152 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,152 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,153 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,156 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,157 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,157 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,158 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,161 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,161 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,161 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,162 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,165 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,166 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,166 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,167 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,170 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,170 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,170 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,171 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,175 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,175 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,175 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,176 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,179 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,180 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,180 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,181 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,184 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,184 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,185 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,185 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,190 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,190 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,190 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,191 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,195 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,195 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,196 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,196 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,200 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,200 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,200 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,201 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,205 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,210 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,210 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,210 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,211 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,215 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,215 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,216 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,217 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,220 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,221 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,221 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,222 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,225 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,226 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,226 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,227 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,230 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,230 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,231 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,231 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,235 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,235 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,235 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,236 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,240 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,240 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,240 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,241 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 20:24:07,245 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,245 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,245 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,246 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,246 INFO L263 TraceCheckUtils]: 0: Hoare triple {36474#true} call ULTIMATE.init(); {36474#true} is VALID [2020-07-10 20:24:07,247 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,247 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-10 20:24:07,247 INFO L263 TraceCheckUtils]: 3: Hoare triple {36474#true} call #t~ret10 := main(); {36474#true} is VALID [2020-07-10 20:24:07,247 INFO L280 TraceCheckUtils]: 4: Hoare triple {36474#true} havoc ~len~0; {36474#true} is VALID [2020-07-10 20:24:07,247 INFO L280 TraceCheckUtils]: 5: Hoare triple {36474#true} havoc ~i~0; {36474#true} is VALID [2020-07-10 20:24:07,247 INFO L280 TraceCheckUtils]: 6: Hoare triple {36474#true} havoc ~j~0; {36474#true} is VALID [2020-07-10 20:24:07,248 INFO L280 TraceCheckUtils]: 7: Hoare triple {36474#true} havoc ~bufsize~0; {36474#true} is VALID [2020-07-10 20:24:07,248 INFO L280 TraceCheckUtils]: 8: Hoare triple {36474#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36474#true} is VALID [2020-07-10 20:24:07,248 INFO L280 TraceCheckUtils]: 9: Hoare triple {36474#true} ~bufsize~0 := #t~nondet0; {36474#true} is VALID [2020-07-10 20:24:07,248 INFO L280 TraceCheckUtils]: 10: Hoare triple {36474#true} havoc #t~nondet0; {36474#true} is VALID [2020-07-10 20:24:07,248 INFO L280 TraceCheckUtils]: 11: Hoare triple {36474#true} assume !(~bufsize~0 < 0); {36474#true} is VALID [2020-07-10 20:24:07,249 INFO L280 TraceCheckUtils]: 12: Hoare triple {36474#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36474#true} is VALID [2020-07-10 20:24:07,249 INFO L280 TraceCheckUtils]: 13: Hoare triple {36474#true} ~len~0 := #t~nondet1; {36474#true} is VALID [2020-07-10 20:24:07,249 INFO L280 TraceCheckUtils]: 14: Hoare triple {36474#true} havoc #t~nondet1; {36474#true} is VALID [2020-07-10 20:24:07,249 INFO L280 TraceCheckUtils]: 15: Hoare triple {36474#true} ~limit~0 := ~bufsize~0 - 4; {36474#true} is VALID [2020-07-10 20:24:07,249 INFO L280 TraceCheckUtils]: 16: Hoare triple {36474#true} ~i~0 := 0; {36474#true} is VALID [2020-07-10 20:24:07,249 INFO L280 TraceCheckUtils]: 17: Hoare triple {36474#true} assume !!(~i~0 < ~len~0); {36474#true} is VALID [2020-07-10 20:24:07,250 INFO L280 TraceCheckUtils]: 18: Hoare triple {36474#true} ~j~0 := 0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,251 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 [2020-07-10 20:24:07,251 INFO L280 TraceCheckUtils]: 20: Hoare triple {36478#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,252 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 [2020-07-10 20:24:07,252 INFO L280 TraceCheckUtils]: 22: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,252 INFO L280 TraceCheckUtils]: 23: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,252 INFO L280 TraceCheckUtils]: 24: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,253 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,253 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 [2020-07-10 20:24:07,253 INFO L280 TraceCheckUtils]: 27: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,254 INFO L280 TraceCheckUtils]: 28: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,254 INFO L280 TraceCheckUtils]: 29: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,254 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,255 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 [2020-07-10 20:24:07,256 INFO L280 TraceCheckUtils]: 32: Hoare triple {36478#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,256 INFO L280 TraceCheckUtils]: 33: Hoare triple {36478#(<= 0 main_~j~0)} havoc #t~nondet2; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,256 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 [2020-07-10 20:24:07,257 INFO L280 TraceCheckUtils]: 35: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,257 INFO L280 TraceCheckUtils]: 36: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,257 INFO L280 TraceCheckUtils]: 37: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,258 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,258 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 [2020-07-10 20:24:07,258 INFO L280 TraceCheckUtils]: 40: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,258 INFO L280 TraceCheckUtils]: 41: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,259 INFO L280 TraceCheckUtils]: 42: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,259 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,260 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 [2020-07-10 20:24:07,260 INFO L280 TraceCheckUtils]: 45: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,260 INFO L280 TraceCheckUtils]: 46: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,260 INFO L280 TraceCheckUtils]: 47: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,261 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,261 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 [2020-07-10 20:24:07,261 INFO L280 TraceCheckUtils]: 50: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,262 INFO L280 TraceCheckUtils]: 51: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,262 INFO L280 TraceCheckUtils]: 52: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,262 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-10 20:24:07,263 INFO L280 TraceCheckUtils]: 54: Hoare triple {36478#(<= 0 main_~j~0)} #t~post3 := ~j~0; {36503#(<= 0 |main_#t~post3|)} is VALID [2020-07-10 20:24:07,264 INFO L280 TraceCheckUtils]: 55: Hoare triple {36503#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,265 INFO L280 TraceCheckUtils]: 56: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,265 INFO L280 TraceCheckUtils]: 57: Hoare triple {36504#(<= 1 main_~j~0)} #t~post4 := ~i~0; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,266 INFO L280 TraceCheckUtils]: 58: Hoare triple {36504#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,266 INFO L280 TraceCheckUtils]: 59: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,267 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 [2020-07-10 20:24:07,267 INFO L280 TraceCheckUtils]: 61: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,267 INFO L280 TraceCheckUtils]: 62: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,267 INFO L280 TraceCheckUtils]: 63: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,268 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,268 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 [2020-07-10 20:24:07,269 INFO L280 TraceCheckUtils]: 66: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,269 INFO L280 TraceCheckUtils]: 67: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,269 INFO L280 TraceCheckUtils]: 68: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,270 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,270 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 [2020-07-10 20:24:07,270 INFO L280 TraceCheckUtils]: 71: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,270 INFO L280 TraceCheckUtils]: 72: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,270 INFO L280 TraceCheckUtils]: 73: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,271 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,271 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 [2020-07-10 20:24:07,272 INFO L280 TraceCheckUtils]: 76: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,272 INFO L280 TraceCheckUtils]: 77: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,272 INFO L280 TraceCheckUtils]: 78: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,273 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-10 20:24:07,274 INFO L280 TraceCheckUtils]: 80: Hoare triple {36504#(<= 1 main_~j~0)} #t~post5 := ~j~0; {36521#(<= 1 |main_#t~post5|)} is VALID [2020-07-10 20:24:07,274 INFO L280 TraceCheckUtils]: 81: Hoare triple {36521#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,275 INFO L280 TraceCheckUtils]: 82: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,276 INFO L280 TraceCheckUtils]: 83: Hoare triple {36522#(<= 2 main_~j~0)} #t~post6 := ~i~0; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,276 INFO L280 TraceCheckUtils]: 84: Hoare triple {36522#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,277 INFO L280 TraceCheckUtils]: 85: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,277 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 [2020-07-10 20:24:07,277 INFO L280 TraceCheckUtils]: 87: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,277 INFO L280 TraceCheckUtils]: 88: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,278 INFO L280 TraceCheckUtils]: 89: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,278 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,279 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 [2020-07-10 20:24:07,279 INFO L280 TraceCheckUtils]: 92: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,279 INFO L280 TraceCheckUtils]: 93: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,279 INFO L280 TraceCheckUtils]: 94: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,280 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-10 20:24:07,281 INFO L280 TraceCheckUtils]: 96: Hoare triple {36522#(<= 2 main_~j~0)} #t~post7 := ~j~0; {36531#(<= 2 |main_#t~post7|)} is VALID [2020-07-10 20:24:07,281 INFO L280 TraceCheckUtils]: 97: Hoare triple {36531#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,282 INFO L280 TraceCheckUtils]: 98: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,283 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 [2020-07-10 20:24:07,283 INFO L280 TraceCheckUtils]: 100: Hoare triple {36532#(<= 3 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,283 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 [2020-07-10 20:24:07,284 INFO L280 TraceCheckUtils]: 102: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,284 INFO L280 TraceCheckUtils]: 103: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,284 INFO L280 TraceCheckUtils]: 104: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,285 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,285 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 [2020-07-10 20:24:07,285 INFO L280 TraceCheckUtils]: 107: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,285 INFO L280 TraceCheckUtils]: 108: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,286 INFO L280 TraceCheckUtils]: 109: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,286 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,287 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 [2020-07-10 20:24:07,287 INFO L280 TraceCheckUtils]: 112: Hoare triple {36532#(<= 3 main_~j~0)} assume 0 != #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,288 INFO L280 TraceCheckUtils]: 113: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,288 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 [2020-07-10 20:24:07,289 INFO L280 TraceCheckUtils]: 115: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,289 INFO L280 TraceCheckUtils]: 116: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,289 INFO L280 TraceCheckUtils]: 117: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,290 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,290 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 [2020-07-10 20:24:07,290 INFO L280 TraceCheckUtils]: 120: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,290 INFO L280 TraceCheckUtils]: 121: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,291 INFO L280 TraceCheckUtils]: 122: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,291 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,292 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 [2020-07-10 20:24:07,292 INFO L280 TraceCheckUtils]: 125: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,292 INFO L280 TraceCheckUtils]: 126: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,292 INFO L280 TraceCheckUtils]: 127: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,293 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,293 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 [2020-07-10 20:24:07,293 INFO L280 TraceCheckUtils]: 130: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,294 INFO L280 TraceCheckUtils]: 131: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,294 INFO L280 TraceCheckUtils]: 132: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,294 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-10 20:24:07,295 INFO L280 TraceCheckUtils]: 134: Hoare triple {36532#(<= 3 main_~j~0)} #t~post8 := ~j~0; {36557#(<= 3 |main_#t~post8|)} is VALID [2020-07-10 20:24:07,296 INFO L280 TraceCheckUtils]: 135: Hoare triple {36557#(<= 3 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,296 INFO L280 TraceCheckUtils]: 136: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,297 INFO L280 TraceCheckUtils]: 137: Hoare triple {36558#(<= 4 main_~j~0)} #t~post9 := ~i~0; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,298 INFO L280 TraceCheckUtils]: 138: Hoare triple {36558#(<= 4 main_~j~0)} ~i~0 := 1 + #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,298 INFO L280 TraceCheckUtils]: 139: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,302 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 [2020-07-10 20:24:07,303 INFO L280 TraceCheckUtils]: 141: Hoare triple {36558#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,303 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 [2020-07-10 20:24:07,304 INFO L280 TraceCheckUtils]: 143: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,304 INFO L280 TraceCheckUtils]: 144: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,304 INFO L280 TraceCheckUtils]: 145: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,305 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,305 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 [2020-07-10 20:24:07,305 INFO L280 TraceCheckUtils]: 148: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,306 INFO L280 TraceCheckUtils]: 149: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,306 INFO L280 TraceCheckUtils]: 150: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,307 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,307 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 [2020-07-10 20:24:07,307 INFO L280 TraceCheckUtils]: 153: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-10 20:24:07,307 INFO L280 TraceCheckUtils]: 154: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-10 20:24:07,307 INFO L280 TraceCheckUtils]: 155: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-10 20:24:07,308 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-10 20:24:07,309 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 [2020-07-10 20:24:07,310 INFO L280 TraceCheckUtils]: 158: Hoare triple {36571#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {36572#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 20:24:07,311 INFO L280 TraceCheckUtils]: 159: Hoare triple {36572#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {36475#false} is VALID [2020-07-10 20:24:07,311 INFO L280 TraceCheckUtils]: 160: Hoare triple {36475#false} assume !false; {36475#false} is VALID [2020-07-10 20:24:07,328 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-10 20:24:07,328 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-10 20:24:07,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1184269298] [2020-07-10 20:24:07,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 20:24:07,329 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-10 20:24:07,329 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267134401] [2020-07-10 20:24:07,331 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-10 20:24:07,331 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 20:24:07,331 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-10 20:24:07,455 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:07,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-10 20:24:07,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-10 20:24:07,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-10 20:24:07,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-10 20:24:07,456 INFO L87 Difference]: Start difference. First operand 459 states and 603 transitions. Second operand 13 states. [2020-07-10 20:24:10,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:10,913 INFO L93 Difference]: Finished difference Result 499 states and 659 transitions. [2020-07-10 20:24:10,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-10 20:24:10,913 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-10 20:24:10,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 20:24:10,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 20:24:10,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-10 20:24:10,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 20:24:10,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-10 20:24:10,918 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 221 transitions. [2020-07-10 20:24:11,225 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 221 edges. 221 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:11,226 INFO L225 Difference]: With dead ends: 499 [2020-07-10 20:24:11,226 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 20:24:11,229 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 [2020-07-10 20:24:11,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 20:24:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 20:24:11,229 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 20:24:11,229 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:11,229 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:11,229 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:11,230 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 20:24:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 20:24:11,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:11,230 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:11,230 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:11,230 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 20:24:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 20:24:11,230 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 20:24:11,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 20:24:11,231 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:11,231 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 20:24:11,231 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 20:24:11,231 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 20:24:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 20:24:11,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 20:24:11,231 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-07-10 20:24:11,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 20:24:11,231 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 20:24:11,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-10 20:24:11,232 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-10 20:24:11,232 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 20:24:11,232 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 20:24:11,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 20:24:11,232 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-10 20:24:11,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 20:24:12,029 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 41 [2020-07-10 20:24:13,558 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-07-10 20:24:14,541 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 22 [2020-07-10 20:24:14,994 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 25 [2020-07-10 20:24:15,295 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 13 [2020-07-10 20:24:15,469 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 22 [2020-07-10 20:24:15,903 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 16 [2020-07-10 20:24:16,661 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 26 [2020-07-10 20:24:17,303 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 11 [2020-07-10 20:24:17,545 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 16 [2020-07-10 20:24:17,915 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 25 [2020-07-10 20:24:18,487 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2020-07-10 20:24:18,915 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 18 [2020-07-10 20:24:18,921 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-10 20:24:18,922 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-10 20:24:18,922 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-10 20:24:18,922 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 20:24:18,922 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 20:24:18,922 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-10 20:24:18,922 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-10 20:24:18,922 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-10 20:24:18,923 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-10 20:24:18,923 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-10 20:24:18,923 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-10 20:24:18,923 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)) [2020-07-10 20:24:18,923 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)) [2020-07-10 20:24:18,923 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 56) the Hoare annotation is: true [2020-07-10 20:24:18,923 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~limit~0 4) main_~bufsize~0) [2020-07-10 20:24:18,924 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)))) [2020-07-10 20:24:18,924 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-10 20:24:18,924 INFO L271 CegarLoopResult]: At program point L23-4(lines 23 54) the Hoare annotation is: true [2020-07-10 20:24:18,924 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-07-10 20:24:18,924 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-07-10 20:24:18,924 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))) [2020-07-10 20:24:18,924 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)) [2020-07-10 20:24:18,925 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)))) [2020-07-10 20:24:18,926 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-10 20:24:18,926 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-07-10 20:24:18,926 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))) [2020-07-10 20:24:18,926 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-10 20:24:18,926 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)) [2020-07-10 20:24:18,926 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)) [2020-07-10 20:24:18,926 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)) [2020-07-10 20:24:18,926 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)) [2020-07-10 20:24:18,927 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)) [2020-07-10 20:24:18,927 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)) [2020-07-10 20:24:18,927 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)) [2020-07-10 20:24:18,927 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)) [2020-07-10 20:24:18,927 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)) [2020-07-10 20:24:18,927 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-10 20:24:18,927 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-07-10 20:24:18,927 INFO L271 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: true [2020-07-10 20:24:18,927 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))) [2020-07-10 20:24:18,927 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-10 20:24:18,928 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))) [2020-07-10 20:24:18,928 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)) [2020-07-10 20:24:18,928 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 56) the Hoare annotation is: true [2020-07-10 20:24:18,928 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)) [2020-07-10 20:24:18,928 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)) [2020-07-10 20:24:18,928 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)) [2020-07-10 20:24:18,928 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)) [2020-07-10 20:24:18,928 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)) [2020-07-10 20:24:18,928 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)) [2020-07-10 20:24:18,929 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 56) the Hoare annotation is: true [2020-07-10 20:24:18,929 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)) [2020-07-10 20:24:18,929 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)) [2020-07-10 20:24:18,929 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-10 20:24:18,929 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))) [2020-07-10 20:24:18,929 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-10 20:24:18,929 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)))) [2020-07-10 20:24:18,929 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)))) [2020-07-10 20:24:18,929 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))) [2020-07-10 20:24:18,930 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)) [2020-07-10 20:24:18,930 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)) [2020-07-10 20:24:18,930 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)) [2020-07-10 20:24:18,930 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)) [2020-07-10 20:24:18,930 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)) [2020-07-10 20:24:18,930 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)) [2020-07-10 20:24:18,930 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-10 20:24:18,930 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))) [2020-07-10 20:24:18,930 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-10 20:24:18,931 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))) [2020-07-10 20:24:18,931 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))) [2020-07-10 20:24:18,931 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-10 20:24:18,935 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 20:24:18,936 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:24:18,936 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 20:24:18,937 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-10 20:24:18,937 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-10 20:24:18,988 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. [2020-07-10 20:24:19,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 08:24:19 BoogieIcfgContainer [2020-07-10 20:24:19,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 20:24:19,007 INFO L168 Benchmark]: Toolchain (without parser) took 89496.21 ms. Allocated memory was 138.4 MB in the beginning and 604.5 MB in the end (delta: 466.1 MB). Free memory was 103.7 MB in the beginning and 150.6 MB in the end (delta: -46.9 MB). Peak memory consumption was 419.2 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,007 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-10 20:24:19,008 INFO L168 Benchmark]: CACSL2BoogieTranslator took 348.28 ms. Allocated memory is still 138.4 MB. Free memory was 103.7 MB in the beginning and 93.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,008 INFO L168 Benchmark]: Boogie Preprocessor took 124.33 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.0 MB in the beginning and 181.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,009 INFO L168 Benchmark]: RCFGBuilder took 585.26 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 148.0 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,009 INFO L168 Benchmark]: TraceAbstraction took 88432.46 ms. Allocated memory was 202.9 MB in the beginning and 604.5 MB in the end (delta: 401.6 MB). Free memory was 147.0 MB in the beginning and 150.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 398.0 MB. Max. memory is 7.1 GB. [2020-07-10 20:24:19,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory is still 121.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 348.28 ms. Allocated memory is still 138.4 MB. Free memory was 103.7 MB in the beginning and 93.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.33 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 93.0 MB in the beginning and 181.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 585.26 ms. Allocated memory is still 202.9 MB. Free memory was 181.5 MB in the beginning and 148.0 MB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 88432.46 ms. Allocated memory was 202.9 MB in the beginning and 604.5 MB in the end (delta: 401.6 MB). Free memory was 147.0 MB in the beginning and 150.6 MB in the end (delta: -3.6 MB). Peak memory consumption was 398.0 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: 80.5s, OverallIterations: 23, TraceHistogramMax: 22, AutomataDifference: 45.5s, 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, 2.4s 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: 14.2s AutomataMinimizationTime, 23 MinimizatonAttempts, 542 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 74 LocationsWithAnnotation, 1484 PreInvPairs, 2305 NumberOfFragments, 1190 HoareAnnotationTreeSize, 1484 FomulaSimplifications, 3249041 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 74 FomulaSimplificationsInter, 745853 FormulaSimplificationTreeSizeReductionInter, 4.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...