/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 0.1.25-46f3038-m [2020-07-08 17:38:05,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 17:38:05,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 17:38:05,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-08 17:38:05,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-08 17:38:05,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-08 17:38:05,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-08 17:38:05,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-08 17:38:05,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-08 17:38:05,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-08 17:38:05,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-08 17:38:05,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-08 17:38:05,051 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 17:38:05,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 17:38:05,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 17:38:05,054 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 17:38:05,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 17:38:05,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 17:38:05,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 17:38:05,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 17:38:05,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 17:38:05,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 17:38:05,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 17:38:05,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 17:38:05,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 17:38:05,078 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 17:38:05,079 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 17:38:05,079 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 17:38:05,080 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 17:38:05,090 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 17:38:05,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 17:38:05,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 17:38:05,095 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 17:38:05,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 17:38:05,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 17:38:05,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 17:38:05,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 17:38:05,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 17:38:05,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 17:38:05,096 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 17:38:05,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 17:38:05,096 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 17:38:05,096 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 17:38:05,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 17:38:05,097 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 17:38:05,098 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 17:38:05,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 17:38:05,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 17:38:05,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 17:38:05,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 17:38:05,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 17:38:05,099 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-08 17:38:05,434 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 17:38:05,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 17:38:05,453 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 17:38:05,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 17:38:05,455 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 17:38:05,456 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-08 17:38:05,538 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac3f1144/4904e2ba4f294c78884a051bea33c764/FLAGee57bbc62 [2020-07-08 17:38:05,998 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 17:38:05,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/SpamAssassin-loop.i [2020-07-08 17:38:06,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac3f1144/4904e2ba4f294c78884a051bea33c764/FLAGee57bbc62 [2020-07-08 17:38:06,379 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ac3f1144/4904e2ba4f294c78884a051bea33c764 [2020-07-08 17:38:06,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 17:38:06,391 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 17:38:06,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 17:38:06,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 17:38:06,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 17:38:06,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d9db4b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06, skipping insertion in model container [2020-07-08 17:38:06,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 17:38:06,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 17:38:06,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:38:06,663 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 17:38:06,692 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 17:38:06,712 INFO L208 MainTranslator]: Completed translation [2020-07-08 17:38:06,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06 WrapperNode [2020-07-08 17:38:06,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 17:38:06,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 17:38:06,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 17:38:06,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 17:38:06,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,830 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... [2020-07-08 17:38:06,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 17:38:06,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 17:38:06,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 17:38:06,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 17:38:06,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 17:38:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 17:38:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 17:38:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-08 17:38:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-08 17:38:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 17:38:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 17:38:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-08 17:38:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-08 17:38:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-08 17:38:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-08 17:38:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 17:38:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 17:38:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 17:38:07,427 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 17:38:07,428 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-08 17:38:07,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:38:07 BoogieIcfgContainer [2020-07-08 17:38:07,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 17:38:07,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 17:38:07,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 17:38:07,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 17:38:07,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 05:38:06" (1/3) ... [2020-07-08 17:38:07,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa78e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:38:07, skipping insertion in model container [2020-07-08 17:38:07,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 05:38:06" (2/3) ... [2020-07-08 17:38:07,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa78e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 05:38:07, skipping insertion in model container [2020-07-08 17:38:07,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 05:38:07" (3/3) ... [2020-07-08 17:38:07,443 INFO L109 eAbstractionObserver]: Analyzing ICFG SpamAssassin-loop.i [2020-07-08 17:38:07,455 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 17:38:07,465 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 17:38:07,481 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 17:38:07,508 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 17:38:07,508 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 17:38:07,509 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-08 17:38:07,509 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 17:38:07,509 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 17:38:07,510 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 17:38:07,510 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 17:38:07,510 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 17:38:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-07-08 17:38:07,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 17:38:07,543 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:07,544 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:07,545 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:07,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:07,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1441743938, now seen corresponding path program 1 times [2020-07-08 17:38:07,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:07,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749547923] [2020-07-08 17:38:07,564 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:07,831 INFO L280 TraceCheckUtils]: 0: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:38:07,831 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-08 17:38:07,834 INFO L263 TraceCheckUtils]: 0: Hoare triple {77#true} call ULTIMATE.init(); {77#true} is VALID [2020-07-08 17:38:07,834 INFO L280 TraceCheckUtils]: 1: Hoare triple {77#true} assume true; {77#true} is VALID [2020-07-08 17:38:07,835 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {77#true} {77#true} #119#return; {77#true} is VALID [2020-07-08 17:38:07,835 INFO L263 TraceCheckUtils]: 3: Hoare triple {77#true} call #t~ret10 := main(); {77#true} is VALID [2020-07-08 17:38:07,835 INFO L280 TraceCheckUtils]: 4: Hoare triple {77#true} havoc ~len~0; {77#true} is VALID [2020-07-08 17:38:07,835 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#true} havoc ~i~0; {77#true} is VALID [2020-07-08 17:38:07,836 INFO L280 TraceCheckUtils]: 6: Hoare triple {77#true} havoc ~j~0; {77#true} is VALID [2020-07-08 17:38:07,836 INFO L280 TraceCheckUtils]: 7: Hoare triple {77#true} havoc ~bufsize~0; {77#true} is VALID [2020-07-08 17:38:07,836 INFO L280 TraceCheckUtils]: 8: Hoare triple {77#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {77#true} is VALID [2020-07-08 17:38:07,837 INFO L280 TraceCheckUtils]: 9: Hoare triple {77#true} ~bufsize~0 := #t~nondet0; {77#true} is VALID [2020-07-08 17:38:07,837 INFO L280 TraceCheckUtils]: 10: Hoare triple {77#true} havoc #t~nondet0; {77#true} is VALID [2020-07-08 17:38:07,837 INFO L280 TraceCheckUtils]: 11: Hoare triple {77#true} assume !(~bufsize~0 < 0); {77#true} is VALID [2020-07-08 17:38:07,838 INFO L280 TraceCheckUtils]: 12: Hoare triple {77#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {77#true} is VALID [2020-07-08 17:38:07,838 INFO L280 TraceCheckUtils]: 13: Hoare triple {77#true} ~len~0 := #t~nondet1; {77#true} is VALID [2020-07-08 17:38:07,838 INFO L280 TraceCheckUtils]: 14: Hoare triple {77#true} havoc #t~nondet1; {77#true} is VALID [2020-07-08 17:38:07,839 INFO L280 TraceCheckUtils]: 15: Hoare triple {77#true} ~limit~0 := ~bufsize~0 - 4; {77#true} is VALID [2020-07-08 17:38:07,839 INFO L280 TraceCheckUtils]: 16: Hoare triple {77#true} ~i~0 := 0; {77#true} is VALID [2020-07-08 17:38:07,840 INFO L280 TraceCheckUtils]: 17: Hoare triple {77#true} assume !!(~i~0 < ~len~0); {77#true} is VALID [2020-07-08 17:38:07,840 INFO L280 TraceCheckUtils]: 18: Hoare triple {77#true} ~j~0 := 0; {77#true} is VALID [2020-07-08 17:38:07,841 INFO L280 TraceCheckUtils]: 19: Hoare triple {77#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {77#true} is VALID [2020-07-08 17:38:07,845 INFO L280 TraceCheckUtils]: 20: Hoare triple {77#true} assume 1 + ~i~0 < ~len~0; {81#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:07,847 INFO L263 TraceCheckUtils]: 21: Hoare triple {81#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {82#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:07,848 INFO L280 TraceCheckUtils]: 22: Hoare triple {82#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {83#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:07,849 INFO L280 TraceCheckUtils]: 23: Hoare triple {83#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {78#false} is VALID [2020-07-08 17:38:07,850 INFO L280 TraceCheckUtils]: 24: Hoare triple {78#false} assume !false; {78#false} is VALID [2020-07-08 17:38:07,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:38:07,854 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:07,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749547923] [2020-07-08 17:38:07,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:07,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 17:38:07,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687504286] [2020-07-08 17:38:07,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 17:38:07,871 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:07,875 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 17:38:07,919 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:07,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 17:38:07,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:07,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 17:38:07,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 17:38:07,930 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 5 states. [2020-07-08 17:38:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:08,820 INFO L93 Difference]: Finished difference Result 143 states and 210 transitions. [2020-07-08 17:38:08,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 17:38:08,820 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 17:38:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:08,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:08,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-08 17:38:08,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2020-07-08 17:38:08,852 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 210 transitions. [2020-07-08 17:38:09,173 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 210 edges. 210 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:09,210 INFO L225 Difference]: With dead ends: 143 [2020-07-08 17:38:09,215 INFO L226 Difference]: Without dead ends: 81 [2020-07-08 17:38:09,221 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 17:38:09,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2020-07-08 17:38:09,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 73. [2020-07-08 17:38:09,328 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:09,329 INFO L82 GeneralOperation]: Start isEquivalent. First operand 81 states. Second operand 73 states. [2020-07-08 17:38:09,330 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 73 states. [2020-07-08 17:38:09,330 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 73 states. [2020-07-08 17:38:09,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:09,341 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-08 17:38:09,341 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-08 17:38:09,344 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:09,344 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:09,344 INFO L74 IsIncluded]: Start isIncluded. First operand 73 states. Second operand 81 states. [2020-07-08 17:38:09,345 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 81 states. [2020-07-08 17:38:09,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:09,353 INFO L93 Difference]: Finished difference Result 81 states and 102 transitions. [2020-07-08 17:38:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2020-07-08 17:38:09,356 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:09,356 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:09,356 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:09,357 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:09,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-08 17:38:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 91 transitions. [2020-07-08 17:38:09,364 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 91 transitions. Word has length 25 [2020-07-08 17:38:09,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:09,365 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 91 transitions. [2020-07-08 17:38:09,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 17:38:09,365 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 73 states and 91 transitions. [2020-07-08 17:38:09,499 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:09,499 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 91 transitions. [2020-07-08 17:38:09,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-08 17:38:09,501 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:09,501 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:09,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 17:38:09,501 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:09,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:09,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1406858677, now seen corresponding path program 1 times [2020-07-08 17:38:09,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:09,503 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480171316] [2020-07-08 17:38:09,503 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:09,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:09,623 INFO L280 TraceCheckUtils]: 0: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-08 17:38:09,623 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-08 17:38:09,624 INFO L263 TraceCheckUtils]: 0: Hoare triple {682#true} call ULTIMATE.init(); {682#true} is VALID [2020-07-08 17:38:09,624 INFO L280 TraceCheckUtils]: 1: Hoare triple {682#true} assume true; {682#true} is VALID [2020-07-08 17:38:09,624 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {682#true} {682#true} #119#return; {682#true} is VALID [2020-07-08 17:38:09,625 INFO L263 TraceCheckUtils]: 3: Hoare triple {682#true} call #t~ret10 := main(); {682#true} is VALID [2020-07-08 17:38:09,625 INFO L280 TraceCheckUtils]: 4: Hoare triple {682#true} havoc ~len~0; {682#true} is VALID [2020-07-08 17:38:09,626 INFO L280 TraceCheckUtils]: 5: Hoare triple {682#true} havoc ~i~0; {682#true} is VALID [2020-07-08 17:38:09,626 INFO L280 TraceCheckUtils]: 6: Hoare triple {682#true} havoc ~j~0; {682#true} is VALID [2020-07-08 17:38:09,627 INFO L280 TraceCheckUtils]: 7: Hoare triple {682#true} havoc ~bufsize~0; {682#true} is VALID [2020-07-08 17:38:09,627 INFO L280 TraceCheckUtils]: 8: Hoare triple {682#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {682#true} is VALID [2020-07-08 17:38:09,628 INFO L280 TraceCheckUtils]: 9: Hoare triple {682#true} ~bufsize~0 := #t~nondet0; {682#true} is VALID [2020-07-08 17:38:09,628 INFO L280 TraceCheckUtils]: 10: Hoare triple {682#true} havoc #t~nondet0; {682#true} is VALID [2020-07-08 17:38:09,628 INFO L280 TraceCheckUtils]: 11: Hoare triple {682#true} assume !(~bufsize~0 < 0); {682#true} is VALID [2020-07-08 17:38:09,629 INFO L280 TraceCheckUtils]: 12: Hoare triple {682#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {682#true} is VALID [2020-07-08 17:38:09,629 INFO L280 TraceCheckUtils]: 13: Hoare triple {682#true} ~len~0 := #t~nondet1; {682#true} is VALID [2020-07-08 17:38:09,629 INFO L280 TraceCheckUtils]: 14: Hoare triple {682#true} havoc #t~nondet1; {682#true} is VALID [2020-07-08 17:38:09,629 INFO L280 TraceCheckUtils]: 15: Hoare triple {682#true} ~limit~0 := ~bufsize~0 - 4; {682#true} is VALID [2020-07-08 17:38:09,630 INFO L280 TraceCheckUtils]: 16: Hoare triple {682#true} ~i~0 := 0; {682#true} is VALID [2020-07-08 17:38:09,632 INFO L280 TraceCheckUtils]: 17: Hoare triple {682#true} assume !!(~i~0 < ~len~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 17:38:09,633 INFO L280 TraceCheckUtils]: 18: Hoare triple {686#(< main_~i~0 main_~len~0)} ~j~0 := 0; {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 17:38:09,634 INFO L280 TraceCheckUtils]: 19: Hoare triple {686#(< main_~i~0 main_~len~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 17:38:09,636 INFO L280 TraceCheckUtils]: 20: Hoare triple {686#(< main_~i~0 main_~len~0)} assume !(1 + ~i~0 < ~len~0); {686#(< main_~i~0 main_~len~0)} is VALID [2020-07-08 17:38:09,637 INFO L263 TraceCheckUtils]: 21: Hoare triple {686#(< main_~i~0 main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {687#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:09,641 INFO L280 TraceCheckUtils]: 22: Hoare triple {687#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {688#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:09,642 INFO L280 TraceCheckUtils]: 23: Hoare triple {688#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {683#false} is VALID [2020-07-08 17:38:09,642 INFO L280 TraceCheckUtils]: 24: Hoare triple {683#false} assume !false; {683#false} is VALID [2020-07-08 17:38:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:38:09,643 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:09,644 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480171316] [2020-07-08 17:38:09,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:09,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 17:38:09,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794335089] [2020-07-08 17:38:09,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 17:38:09,649 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:09,649 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 17:38:09,674 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:09,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 17:38:09,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:09,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 17:38:09,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 17:38:09,676 INFO L87 Difference]: Start difference. First operand 73 states and 91 transitions. Second operand 5 states. [2020-07-08 17:38:10,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:10,124 INFO L93 Difference]: Finished difference Result 85 states and 102 transitions. [2020-07-08 17:38:10,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 17:38:10,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-07-08 17:38:10,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:10,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-08 17:38:10,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:10,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 94 transitions. [2020-07-08 17:38:10,131 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 94 transitions. [2020-07-08 17:38:10,261 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 94 edges. 94 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:10,265 INFO L225 Difference]: With dead ends: 85 [2020-07-08 17:38:10,266 INFO L226 Difference]: Without dead ends: 83 [2020-07-08 17:38:10,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 17:38:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-08 17:38:10,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2020-07-08 17:38:10,367 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:10,367 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 81 states. [2020-07-08 17:38:10,368 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 81 states. [2020-07-08 17:38:10,368 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 81 states. [2020-07-08 17:38:10,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:10,374 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-08 17:38:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-08 17:38:10,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:10,377 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:10,377 INFO L74 IsIncluded]: Start isIncluded. First operand 81 states. Second operand 83 states. [2020-07-08 17:38:10,377 INFO L87 Difference]: Start difference. First operand 81 states. Second operand 83 states. [2020-07-08 17:38:10,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:10,383 INFO L93 Difference]: Finished difference Result 83 states and 100 transitions. [2020-07-08 17:38:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 100 transitions. [2020-07-08 17:38:10,384 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:10,384 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:10,385 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:10,385 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:10,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2020-07-08 17:38:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 97 transitions. [2020-07-08 17:38:10,390 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 97 transitions. Word has length 25 [2020-07-08 17:38:10,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:10,390 INFO L479 AbstractCegarLoop]: Abstraction has 81 states and 97 transitions. [2020-07-08 17:38:10,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 17:38:10,391 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 81 states and 97 transitions. [2020-07-08 17:38:10,494 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 97 transitions. [2020-07-08 17:38:10,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-08 17:38:10,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:10,496 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:10,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 17:38:10,497 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:10,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:10,497 INFO L82 PathProgramCache]: Analyzing trace with hash -1771333938, now seen corresponding path program 1 times [2020-07-08 17:38:10,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:10,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [59618963] [2020-07-08 17:38:10,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:10,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:10,595 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 17:38:10,595 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-08 17:38:10,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:10,609 INFO L280 TraceCheckUtils]: 0: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-08 17:38:10,609 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-08 17:38:10,609 INFO L280 TraceCheckUtils]: 2: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 17:38:10,610 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:10,611 INFO L263 TraceCheckUtils]: 0: Hoare triple {1191#true} call ULTIMATE.init(); {1191#true} is VALID [2020-07-08 17:38:10,611 INFO L280 TraceCheckUtils]: 1: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 17:38:10,612 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1191#true} {1191#true} #119#return; {1191#true} is VALID [2020-07-08 17:38:10,612 INFO L263 TraceCheckUtils]: 3: Hoare triple {1191#true} call #t~ret10 := main(); {1191#true} is VALID [2020-07-08 17:38:10,612 INFO L280 TraceCheckUtils]: 4: Hoare triple {1191#true} havoc ~len~0; {1191#true} is VALID [2020-07-08 17:38:10,612 INFO L280 TraceCheckUtils]: 5: Hoare triple {1191#true} havoc ~i~0; {1191#true} is VALID [2020-07-08 17:38:10,613 INFO L280 TraceCheckUtils]: 6: Hoare triple {1191#true} havoc ~j~0; {1191#true} is VALID [2020-07-08 17:38:10,613 INFO L280 TraceCheckUtils]: 7: Hoare triple {1191#true} havoc ~bufsize~0; {1191#true} is VALID [2020-07-08 17:38:10,613 INFO L280 TraceCheckUtils]: 8: Hoare triple {1191#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1191#true} is VALID [2020-07-08 17:38:10,614 INFO L280 TraceCheckUtils]: 9: Hoare triple {1191#true} ~bufsize~0 := #t~nondet0; {1191#true} is VALID [2020-07-08 17:38:10,614 INFO L280 TraceCheckUtils]: 10: Hoare triple {1191#true} havoc #t~nondet0; {1191#true} is VALID [2020-07-08 17:38:10,614 INFO L280 TraceCheckUtils]: 11: Hoare triple {1191#true} assume !(~bufsize~0 < 0); {1191#true} is VALID [2020-07-08 17:38:10,614 INFO L280 TraceCheckUtils]: 12: Hoare triple {1191#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1191#true} is VALID [2020-07-08 17:38:10,615 INFO L280 TraceCheckUtils]: 13: Hoare triple {1191#true} ~len~0 := #t~nondet1; {1191#true} is VALID [2020-07-08 17:38:10,615 INFO L280 TraceCheckUtils]: 14: Hoare triple {1191#true} havoc #t~nondet1; {1191#true} is VALID [2020-07-08 17:38:10,615 INFO L280 TraceCheckUtils]: 15: Hoare triple {1191#true} ~limit~0 := ~bufsize~0 - 4; {1191#true} is VALID [2020-07-08 17:38:10,616 INFO L280 TraceCheckUtils]: 16: Hoare triple {1191#true} ~i~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:10,617 INFO L280 TraceCheckUtils]: 17: Hoare triple {1195#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:10,617 INFO L280 TraceCheckUtils]: 18: Hoare triple {1195#(<= 0 main_~i~0)} ~j~0 := 0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:10,618 INFO L280 TraceCheckUtils]: 19: Hoare triple {1195#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:10,619 INFO L280 TraceCheckUtils]: 20: Hoare triple {1195#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:10,619 INFO L263 TraceCheckUtils]: 21: Hoare triple {1195#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {1191#true} is VALID [2020-07-08 17:38:10,619 INFO L280 TraceCheckUtils]: 22: Hoare triple {1191#true} ~cond := #in~cond; {1191#true} is VALID [2020-07-08 17:38:10,619 INFO L280 TraceCheckUtils]: 23: Hoare triple {1191#true} assume !(0 == ~cond); {1191#true} is VALID [2020-07-08 17:38:10,620 INFO L280 TraceCheckUtils]: 24: Hoare triple {1191#true} assume true; {1191#true} is VALID [2020-07-08 17:38:10,621 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1191#true} {1195#(<= 0 main_~i~0)} #123#return; {1195#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:10,622 INFO L263 TraceCheckUtils]: 26: Hoare triple {1195#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {1200#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:10,623 INFO L280 TraceCheckUtils]: 27: Hoare triple {1200#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1201#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:10,623 INFO L280 TraceCheckUtils]: 28: Hoare triple {1201#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1192#false} is VALID [2020-07-08 17:38:10,624 INFO L280 TraceCheckUtils]: 29: Hoare triple {1192#false} assume !false; {1192#false} is VALID [2020-07-08 17:38:10,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:38:10,625 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:10,626 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [59618963] [2020-07-08 17:38:10,626 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:10,626 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 17:38:10,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582352391] [2020-07-08 17:38:10,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-08 17:38:10,627 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:10,627 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 17:38:10,662 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:10,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 17:38:10,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:10,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 17:38:10,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 17:38:10,664 INFO L87 Difference]: Start difference. First operand 81 states and 97 transitions. Second operand 5 states. [2020-07-08 17:38:11,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:11,205 INFO L93 Difference]: Finished difference Result 116 states and 145 transitions. [2020-07-08 17:38:11,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 17:38:11,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-08 17:38:11,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:11,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-08 17:38:11,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:11,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 132 transitions. [2020-07-08 17:38:11,217 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 132 transitions. [2020-07-08 17:38:11,364 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 132 edges. 132 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:11,369 INFO L225 Difference]: With dead ends: 116 [2020-07-08 17:38:11,369 INFO L226 Difference]: Without dead ends: 114 [2020-07-08 17:38:11,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 17:38:11,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-08 17:38:11,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2020-07-08 17:38:11,481 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:11,481 INFO L82 GeneralOperation]: Start isEquivalent. First operand 114 states. Second operand 100 states. [2020-07-08 17:38:11,482 INFO L74 IsIncluded]: Start isIncluded. First operand 114 states. Second operand 100 states. [2020-07-08 17:38:11,482 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 100 states. [2020-07-08 17:38:11,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:11,491 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-08 17:38:11,491 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-08 17:38:11,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:11,492 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:11,492 INFO L74 IsIncluded]: Start isIncluded. First operand 100 states. Second operand 114 states. [2020-07-08 17:38:11,492 INFO L87 Difference]: Start difference. First operand 100 states. Second operand 114 states. [2020-07-08 17:38:11,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:11,501 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2020-07-08 17:38:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2020-07-08 17:38:11,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:11,503 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:11,503 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:11,503 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:11,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-08 17:38:11,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions. [2020-07-08 17:38:11,510 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 30 [2020-07-08 17:38:11,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:11,511 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions. [2020-07-08 17:38:11,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 17:38:11,511 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 100 states and 125 transitions. [2020-07-08 17:38:11,653 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 125 edges. 125 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:11,654 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2020-07-08 17:38:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-08 17:38:11,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:11,655 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:11,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 17:38:11,656 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:11,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:11,656 INFO L82 PathProgramCache]: Analyzing trace with hash 456630219, now seen corresponding path program 1 times [2020-07-08 17:38:11,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:11,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [976779857] [2020-07-08 17:38:11,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:11,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:11,782 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 17:38:11,782 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-08 17:38:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:11,791 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 17:38:11,791 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 17:38:11,792 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 17:38:11,793 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #147#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:11,803 INFO L280 TraceCheckUtils]: 0: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 17:38:11,803 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 17:38:11,804 INFO L280 TraceCheckUtils]: 2: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 17:38:11,805 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #149#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,805 INFO L263 TraceCheckUtils]: 0: Hoare triple {1866#true} call ULTIMATE.init(); {1866#true} is VALID [2020-07-08 17:38:11,806 INFO L280 TraceCheckUtils]: 1: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 17:38:11,806 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {1866#true} {1866#true} #119#return; {1866#true} is VALID [2020-07-08 17:38:11,806 INFO L263 TraceCheckUtils]: 3: Hoare triple {1866#true} call #t~ret10 := main(); {1866#true} is VALID [2020-07-08 17:38:11,806 INFO L280 TraceCheckUtils]: 4: Hoare triple {1866#true} havoc ~len~0; {1866#true} is VALID [2020-07-08 17:38:11,807 INFO L280 TraceCheckUtils]: 5: Hoare triple {1866#true} havoc ~i~0; {1866#true} is VALID [2020-07-08 17:38:11,807 INFO L280 TraceCheckUtils]: 6: Hoare triple {1866#true} havoc ~j~0; {1866#true} is VALID [2020-07-08 17:38:11,807 INFO L280 TraceCheckUtils]: 7: Hoare triple {1866#true} havoc ~bufsize~0; {1866#true} is VALID [2020-07-08 17:38:11,808 INFO L280 TraceCheckUtils]: 8: Hoare triple {1866#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {1866#true} is VALID [2020-07-08 17:38:11,808 INFO L280 TraceCheckUtils]: 9: Hoare triple {1866#true} ~bufsize~0 := #t~nondet0; {1866#true} is VALID [2020-07-08 17:38:11,808 INFO L280 TraceCheckUtils]: 10: Hoare triple {1866#true} havoc #t~nondet0; {1866#true} is VALID [2020-07-08 17:38:11,808 INFO L280 TraceCheckUtils]: 11: Hoare triple {1866#true} assume !(~bufsize~0 < 0); {1866#true} is VALID [2020-07-08 17:38:11,809 INFO L280 TraceCheckUtils]: 12: Hoare triple {1866#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {1866#true} is VALID [2020-07-08 17:38:11,809 INFO L280 TraceCheckUtils]: 13: Hoare triple {1866#true} ~len~0 := #t~nondet1; {1866#true} is VALID [2020-07-08 17:38:11,809 INFO L280 TraceCheckUtils]: 14: Hoare triple {1866#true} havoc #t~nondet1; {1866#true} is VALID [2020-07-08 17:38:11,810 INFO L280 TraceCheckUtils]: 15: Hoare triple {1866#true} ~limit~0 := ~bufsize~0 - 4; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,811 INFO L280 TraceCheckUtils]: 16: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~i~0 := 0; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,811 INFO L280 TraceCheckUtils]: 17: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0); {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,812 INFO L280 TraceCheckUtils]: 18: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~j~0 := 0; {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,813 INFO L280 TraceCheckUtils]: 19: Hoare triple {1870#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,814 INFO L280 TraceCheckUtils]: 20: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} assume !(1 + ~i~0 < ~len~0); {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,814 INFO L263 TraceCheckUtils]: 21: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {1866#true} is VALID [2020-07-08 17:38:11,814 INFO L280 TraceCheckUtils]: 22: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 17:38:11,814 INFO L280 TraceCheckUtils]: 23: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 17:38:11,815 INFO L280 TraceCheckUtils]: 24: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 17:38:11,816 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #147#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,816 INFO L263 TraceCheckUtils]: 26: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {1866#true} is VALID [2020-07-08 17:38:11,816 INFO L280 TraceCheckUtils]: 27: Hoare triple {1866#true} ~cond := #in~cond; {1866#true} is VALID [2020-07-08 17:38:11,817 INFO L280 TraceCheckUtils]: 28: Hoare triple {1866#true} assume !(0 == ~cond); {1866#true} is VALID [2020-07-08 17:38:11,817 INFO L280 TraceCheckUtils]: 29: Hoare triple {1866#true} assume true; {1866#true} is VALID [2020-07-08 17:38:11,818 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {1866#true} {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} #149#return; {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:11,819 INFO L263 TraceCheckUtils]: 31: Hoare triple {1871#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {1880#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:11,820 INFO L280 TraceCheckUtils]: 32: Hoare triple {1880#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {1881#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:11,821 INFO L280 TraceCheckUtils]: 33: Hoare triple {1881#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {1867#false} is VALID [2020-07-08 17:38:11,821 INFO L280 TraceCheckUtils]: 34: Hoare triple {1867#false} assume !false; {1867#false} is VALID [2020-07-08 17:38:11,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:38:11,824 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:11,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [976779857] [2020-07-08 17:38:11,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:11,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-08 17:38:11,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443761614] [2020-07-08 17:38:11,825 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-08 17:38:11,826 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:11,826 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-08 17:38:11,860 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:11,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-08 17:38:11,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:11,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-08 17:38:11,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-08 17:38:11,862 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand 6 states. [2020-07-08 17:38:12,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:12,564 INFO L93 Difference]: Finished difference Result 106 states and 130 transitions. [2020-07-08 17:38:12,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-08 17:38:12,564 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-07-08 17:38:12,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:12,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 17:38:12,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-08 17:38:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-08 17:38:12,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 91 transitions. [2020-07-08 17:38:12,571 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 91 transitions. [2020-07-08 17:38:12,685 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:12,688 INFO L225 Difference]: With dead ends: 106 [2020-07-08 17:38:12,688 INFO L226 Difference]: Without dead ends: 104 [2020-07-08 17:38:12,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-08 17:38:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2020-07-08 17:38:12,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2020-07-08 17:38:12,862 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:12,862 INFO L82 GeneralOperation]: Start isEquivalent. First operand 104 states. Second operand 104 states. [2020-07-08 17:38:12,862 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-08 17:38:12,863 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-08 17:38:12,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:12,872 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-08 17:38:12,872 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-08 17:38:12,873 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:12,873 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:12,873 INFO L74 IsIncluded]: Start isIncluded. First operand 104 states. Second operand 104 states. [2020-07-08 17:38:12,873 INFO L87 Difference]: Start difference. First operand 104 states. Second operand 104 states. [2020-07-08 17:38:12,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:12,881 INFO L93 Difference]: Finished difference Result 104 states and 128 transitions. [2020-07-08 17:38:12,881 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-08 17:38:12,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:12,882 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:12,882 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:12,882 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:12,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2020-07-08 17:38:12,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2020-07-08 17:38:12,891 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 35 [2020-07-08 17:38:12,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:12,892 INFO L479 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2020-07-08 17:38:12,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-08 17:38:12,892 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 104 states and 128 transitions. [2020-07-08 17:38:13,088 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 128 edges. 128 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2020-07-08 17:38:13,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-08 17:38:13,090 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:13,090 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:13,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-08 17:38:13,091 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:13,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:13,091 INFO L82 PathProgramCache]: Analyzing trace with hash 364478305, now seen corresponding path program 1 times [2020-07-08 17:38:13,092 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:13,092 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1510017249] [2020-07-08 17:38:13,092 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:13,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:13,198 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,199 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-08 17:38:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:13,209 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 17:38:13,210 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 17:38:13,210 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,211 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:13,219 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 17:38:13,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 17:38:13,219 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,220 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:13,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 17:38:13,228 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 17:38:13,228 INFO L280 TraceCheckUtils]: 2: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,229 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,229 INFO L263 TraceCheckUtils]: 0: Hoare triple {2516#true} call ULTIMATE.init(); {2516#true} is VALID [2020-07-08 17:38:13,229 INFO L280 TraceCheckUtils]: 1: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,230 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {2516#true} {2516#true} #119#return; {2516#true} is VALID [2020-07-08 17:38:13,230 INFO L263 TraceCheckUtils]: 3: Hoare triple {2516#true} call #t~ret10 := main(); {2516#true} is VALID [2020-07-08 17:38:13,230 INFO L280 TraceCheckUtils]: 4: Hoare triple {2516#true} havoc ~len~0; {2516#true} is VALID [2020-07-08 17:38:13,230 INFO L280 TraceCheckUtils]: 5: Hoare triple {2516#true} havoc ~i~0; {2516#true} is VALID [2020-07-08 17:38:13,231 INFO L280 TraceCheckUtils]: 6: Hoare triple {2516#true} havoc ~j~0; {2516#true} is VALID [2020-07-08 17:38:13,231 INFO L280 TraceCheckUtils]: 7: Hoare triple {2516#true} havoc ~bufsize~0; {2516#true} is VALID [2020-07-08 17:38:13,231 INFO L280 TraceCheckUtils]: 8: Hoare triple {2516#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {2516#true} is VALID [2020-07-08 17:38:13,231 INFO L280 TraceCheckUtils]: 9: Hoare triple {2516#true} ~bufsize~0 := #t~nondet0; {2516#true} is VALID [2020-07-08 17:38:13,232 INFO L280 TraceCheckUtils]: 10: Hoare triple {2516#true} havoc #t~nondet0; {2516#true} is VALID [2020-07-08 17:38:13,232 INFO L280 TraceCheckUtils]: 11: Hoare triple {2516#true} assume !(~bufsize~0 < 0); {2516#true} is VALID [2020-07-08 17:38:13,232 INFO L280 TraceCheckUtils]: 12: Hoare triple {2516#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {2516#true} is VALID [2020-07-08 17:38:13,232 INFO L280 TraceCheckUtils]: 13: Hoare triple {2516#true} ~len~0 := #t~nondet1; {2516#true} is VALID [2020-07-08 17:38:13,233 INFO L280 TraceCheckUtils]: 14: Hoare triple {2516#true} havoc #t~nondet1; {2516#true} is VALID [2020-07-08 17:38:13,233 INFO L280 TraceCheckUtils]: 15: Hoare triple {2516#true} ~limit~0 := ~bufsize~0 - 4; {2516#true} is VALID [2020-07-08 17:38:13,233 INFO L280 TraceCheckUtils]: 16: Hoare triple {2516#true} ~i~0 := 0; {2516#true} is VALID [2020-07-08 17:38:13,233 INFO L280 TraceCheckUtils]: 17: Hoare triple {2516#true} assume !!(~i~0 < ~len~0); {2516#true} is VALID [2020-07-08 17:38:13,234 INFO L280 TraceCheckUtils]: 18: Hoare triple {2516#true} ~j~0 := 0; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,235 INFO L280 TraceCheckUtils]: 19: Hoare triple {2520#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,235 INFO L280 TraceCheckUtils]: 20: Hoare triple {2520#(<= 0 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,236 INFO L263 TraceCheckUtils]: 21: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {2516#true} is VALID [2020-07-08 17:38:13,236 INFO L280 TraceCheckUtils]: 22: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 17:38:13,236 INFO L280 TraceCheckUtils]: 23: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 17:38:13,236 INFO L280 TraceCheckUtils]: 24: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,238 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #147#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,238 INFO L263 TraceCheckUtils]: 26: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {2516#true} is VALID [2020-07-08 17:38:13,238 INFO L280 TraceCheckUtils]: 27: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 17:38:13,238 INFO L280 TraceCheckUtils]: 28: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 17:38:13,239 INFO L280 TraceCheckUtils]: 29: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,239 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #149#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,240 INFO L263 TraceCheckUtils]: 31: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {2516#true} is VALID [2020-07-08 17:38:13,240 INFO L280 TraceCheckUtils]: 32: Hoare triple {2516#true} ~cond := #in~cond; {2516#true} is VALID [2020-07-08 17:38:13,240 INFO L280 TraceCheckUtils]: 33: Hoare triple {2516#true} assume !(0 == ~cond); {2516#true} is VALID [2020-07-08 17:38:13,241 INFO L280 TraceCheckUtils]: 34: Hoare triple {2516#true} assume true; {2516#true} is VALID [2020-07-08 17:38:13,241 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {2516#true} {2520#(<= 0 main_~j~0)} #151#return; {2520#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:13,242 INFO L263 TraceCheckUtils]: 36: Hoare triple {2520#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {2533#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:13,243 INFO L280 TraceCheckUtils]: 37: Hoare triple {2533#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {2534#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:13,243 INFO L280 TraceCheckUtils]: 38: Hoare triple {2534#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {2517#false} is VALID [2020-07-08 17:38:13,244 INFO L280 TraceCheckUtils]: 39: Hoare triple {2517#false} assume !false; {2517#false} is VALID [2020-07-08 17:38:13,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:38:13,248 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:13,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1510017249] [2020-07-08 17:38:13,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:13,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 17:38:13,249 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018799971] [2020-07-08 17:38:13,250 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-08 17:38:13,251 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:13,251 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 17:38:13,293 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:13,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 17:38:13,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:13,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 17:38:13,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-08 17:38:13,296 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand 5 states. [2020-07-08 17:38:13,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:13,894 INFO L93 Difference]: Finished difference Result 135 states and 172 transitions. [2020-07-08 17:38:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 17:38:13,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-07-08 17:38:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:13,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:13,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-08 17:38:13,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:13,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 126 transitions. [2020-07-08 17:38:13,903 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 126 transitions. [2020-07-08 17:38:14,022 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 126 edges. 126 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:14,028 INFO L225 Difference]: With dead ends: 135 [2020-07-08 17:38:14,028 INFO L226 Difference]: Without dead ends: 133 [2020-07-08 17:38:14,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-08 17:38:14,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-08 17:38:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 125. [2020-07-08 17:38:14,289 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:14,289 INFO L82 GeneralOperation]: Start isEquivalent. First operand 133 states. Second operand 125 states. [2020-07-08 17:38:14,289 INFO L74 IsIncluded]: Start isIncluded. First operand 133 states. Second operand 125 states. [2020-07-08 17:38:14,289 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 125 states. [2020-07-08 17:38:14,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:14,296 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-08 17:38:14,297 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-08 17:38:14,298 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:14,298 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:14,298 INFO L74 IsIncluded]: Start isIncluded. First operand 125 states. Second operand 133 states. [2020-07-08 17:38:14,298 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 133 states. [2020-07-08 17:38:14,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:14,305 INFO L93 Difference]: Finished difference Result 133 states and 170 transitions. [2020-07-08 17:38:14,306 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2020-07-08 17:38:14,306 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:14,307 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:14,307 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:14,307 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-08 17:38:14,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 162 transitions. [2020-07-08 17:38:14,314 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 162 transitions. Word has length 40 [2020-07-08 17:38:14,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:14,314 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 162 transitions. [2020-07-08 17:38:14,314 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 17:38:14,314 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 125 states and 162 transitions. [2020-07-08 17:38:14,551 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 162 edges. 162 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:14,552 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 162 transitions. [2020-07-08 17:38:14,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-08 17:38:14,553 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:14,554 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:14,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-08 17:38:14,554 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:14,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:14,554 INFO L82 PathProgramCache]: Analyzing trace with hash 914533499, now seen corresponding path program 1 times [2020-07-08 17:38:14,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:14,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652127297] [2020-07-08 17:38:14,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:14,674 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,674 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-08 17:38:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:14,682 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,682 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,682 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,684 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #147#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:14,693 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,694 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,694 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,694 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #149#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:14,701 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,701 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,702 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,702 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #151#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:14,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,708 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,708 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,710 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #153#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:14,718 INFO L280 TraceCheckUtils]: 0: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,718 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,719 INFO L280 TraceCheckUtils]: 2: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,719 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-08 17:38:14,719 INFO L263 TraceCheckUtils]: 0: Hoare triple {3325#true} call ULTIMATE.init(); {3325#true} is VALID [2020-07-08 17:38:14,719 INFO L280 TraceCheckUtils]: 1: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,719 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {3325#true} {3325#true} #119#return; {3325#true} is VALID [2020-07-08 17:38:14,720 INFO L263 TraceCheckUtils]: 3: Hoare triple {3325#true} call #t~ret10 := main(); {3325#true} is VALID [2020-07-08 17:38:14,720 INFO L280 TraceCheckUtils]: 4: Hoare triple {3325#true} havoc ~len~0; {3325#true} is VALID [2020-07-08 17:38:14,720 INFO L280 TraceCheckUtils]: 5: Hoare triple {3325#true} havoc ~i~0; {3325#true} is VALID [2020-07-08 17:38:14,720 INFO L280 TraceCheckUtils]: 6: Hoare triple {3325#true} havoc ~j~0; {3325#true} is VALID [2020-07-08 17:38:14,720 INFO L280 TraceCheckUtils]: 7: Hoare triple {3325#true} havoc ~bufsize~0; {3325#true} is VALID [2020-07-08 17:38:14,721 INFO L280 TraceCheckUtils]: 8: Hoare triple {3325#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {3325#true} is VALID [2020-07-08 17:38:14,721 INFO L280 TraceCheckUtils]: 9: Hoare triple {3325#true} ~bufsize~0 := #t~nondet0; {3325#true} is VALID [2020-07-08 17:38:14,721 INFO L280 TraceCheckUtils]: 10: Hoare triple {3325#true} havoc #t~nondet0; {3325#true} is VALID [2020-07-08 17:38:14,721 INFO L280 TraceCheckUtils]: 11: Hoare triple {3325#true} assume !(~bufsize~0 < 0); {3325#true} is VALID [2020-07-08 17:38:14,721 INFO L280 TraceCheckUtils]: 12: Hoare triple {3325#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {3325#true} is VALID [2020-07-08 17:38:14,721 INFO L280 TraceCheckUtils]: 13: Hoare triple {3325#true} ~len~0 := #t~nondet1; {3325#true} is VALID [2020-07-08 17:38:14,722 INFO L280 TraceCheckUtils]: 14: Hoare triple {3325#true} havoc #t~nondet1; {3325#true} is VALID [2020-07-08 17:38:14,722 INFO L280 TraceCheckUtils]: 15: Hoare triple {3325#true} ~limit~0 := ~bufsize~0 - 4; {3325#true} is VALID [2020-07-08 17:38:14,722 INFO L280 TraceCheckUtils]: 16: Hoare triple {3325#true} ~i~0 := 0; {3325#true} is VALID [2020-07-08 17:38:14,722 INFO L280 TraceCheckUtils]: 17: Hoare triple {3325#true} assume !!(~i~0 < ~len~0); {3325#true} is VALID [2020-07-08 17:38:14,722 INFO L280 TraceCheckUtils]: 18: Hoare triple {3325#true} ~j~0 := 0; {3325#true} is VALID [2020-07-08 17:38:14,723 INFO L280 TraceCheckUtils]: 19: Hoare triple {3325#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {3325#true} is VALID [2020-07-08 17:38:14,723 INFO L280 TraceCheckUtils]: 20: Hoare triple {3325#true} assume !(1 + ~i~0 < ~len~0); {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,724 INFO L263 TraceCheckUtils]: 21: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 17:38:14,724 INFO L280 TraceCheckUtils]: 22: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,724 INFO L280 TraceCheckUtils]: 23: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,724 INFO L280 TraceCheckUtils]: 24: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,725 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #147#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,725 INFO L263 TraceCheckUtils]: 26: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 17:38:14,725 INFO L280 TraceCheckUtils]: 27: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,725 INFO L280 TraceCheckUtils]: 28: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,726 INFO L280 TraceCheckUtils]: 29: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,726 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #149#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,727 INFO L263 TraceCheckUtils]: 31: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 17:38:14,727 INFO L280 TraceCheckUtils]: 32: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,727 INFO L280 TraceCheckUtils]: 33: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,727 INFO L280 TraceCheckUtils]: 34: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,728 INFO L275 TraceCheckUtils]: 35: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #151#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,728 INFO L263 TraceCheckUtils]: 36: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 17:38:14,729 INFO L280 TraceCheckUtils]: 37: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,729 INFO L280 TraceCheckUtils]: 38: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,729 INFO L280 TraceCheckUtils]: 39: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,730 INFO L275 TraceCheckUtils]: 40: Hoare quadruple {3325#true} {3329#(<= main_~len~0 (+ main_~i~0 1))} #153#return; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,731 INFO L280 TraceCheckUtils]: 41: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} #t~post8 := ~j~0; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,732 INFO L280 TraceCheckUtils]: 42: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} ~j~0 := 1 + #t~post8; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,735 INFO L280 TraceCheckUtils]: 43: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} havoc #t~post8; {3329#(<= main_~len~0 (+ main_~i~0 1))} is VALID [2020-07-08 17:38:14,738 INFO L280 TraceCheckUtils]: 44: Hoare triple {3329#(<= main_~len~0 (+ main_~i~0 1))} #t~post9 := ~i~0; {3346#(<= main_~len~0 (+ |main_#t~post9| 1))} is VALID [2020-07-08 17:38:14,741 INFO L280 TraceCheckUtils]: 45: Hoare triple {3346#(<= main_~len~0 (+ |main_#t~post9| 1))} ~i~0 := 1 + #t~post9; {3347#(<= main_~len~0 main_~i~0)} is VALID [2020-07-08 17:38:14,742 INFO L280 TraceCheckUtils]: 46: Hoare triple {3347#(<= main_~len~0 main_~i~0)} havoc #t~post9; {3347#(<= main_~len~0 main_~i~0)} is VALID [2020-07-08 17:38:14,742 INFO L280 TraceCheckUtils]: 47: Hoare triple {3347#(<= main_~len~0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {3347#(<= main_~len~0 main_~i~0)} is VALID [2020-07-08 17:38:14,743 INFO L280 TraceCheckUtils]: 48: Hoare triple {3347#(<= main_~len~0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {3326#false} is VALID [2020-07-08 17:38:14,743 INFO L263 TraceCheckUtils]: 49: Hoare triple {3326#false} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {3325#true} is VALID [2020-07-08 17:38:14,744 INFO L280 TraceCheckUtils]: 50: Hoare triple {3325#true} ~cond := #in~cond; {3325#true} is VALID [2020-07-08 17:38:14,744 INFO L280 TraceCheckUtils]: 51: Hoare triple {3325#true} assume !(0 == ~cond); {3325#true} is VALID [2020-07-08 17:38:14,744 INFO L280 TraceCheckUtils]: 52: Hoare triple {3325#true} assume true; {3325#true} is VALID [2020-07-08 17:38:14,744 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {3325#true} {3326#false} #123#return; {3326#false} is VALID [2020-07-08 17:38:14,745 INFO L263 TraceCheckUtils]: 54: Hoare triple {3326#false} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {3326#false} is VALID [2020-07-08 17:38:14,745 INFO L280 TraceCheckUtils]: 55: Hoare triple {3326#false} ~cond := #in~cond; {3326#false} is VALID [2020-07-08 17:38:14,745 INFO L280 TraceCheckUtils]: 56: Hoare triple {3326#false} assume 0 == ~cond; {3326#false} is VALID [2020-07-08 17:38:14,745 INFO L280 TraceCheckUtils]: 57: Hoare triple {3326#false} assume !false; {3326#false} is VALID [2020-07-08 17:38:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 17:38:14,748 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:14,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652127297] [2020-07-08 17:38:14,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:14,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 17:38:14,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984704946] [2020-07-08 17:38:14,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-08 17:38:14,750 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:14,750 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 17:38:14,797 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:14,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 17:38:14,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:14,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 17:38:14,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 17:38:14,799 INFO L87 Difference]: Start difference. First operand 125 states and 162 transitions. Second operand 5 states. [2020-07-08 17:38:15,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:15,375 INFO L93 Difference]: Finished difference Result 229 states and 302 transitions. [2020-07-08 17:38:15,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 17:38:15,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2020-07-08 17:38:15,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:15,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-08 17:38:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 17:38:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 172 transitions. [2020-07-08 17:38:15,385 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 172 transitions. [2020-07-08 17:38:15,579 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 172 edges. 172 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:15,587 INFO L225 Difference]: With dead ends: 229 [2020-07-08 17:38:15,587 INFO L226 Difference]: Without dead ends: 128 [2020-07-08 17:38:15,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-08 17:38:15,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-08 17:38:15,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-08 17:38:15,807 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:15,807 INFO L82 GeneralOperation]: Start isEquivalent. First operand 128 states. Second operand 128 states. [2020-07-08 17:38:15,807 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-08 17:38:15,807 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-08 17:38:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:15,814 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-08 17:38:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-08 17:38:15,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:15,815 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:15,815 INFO L74 IsIncluded]: Start isIncluded. First operand 128 states. Second operand 128 states. [2020-07-08 17:38:15,816 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 128 states. [2020-07-08 17:38:15,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:15,823 INFO L93 Difference]: Finished difference Result 128 states and 165 transitions. [2020-07-08 17:38:15,824 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-08 17:38:15,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:15,825 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:15,825 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:15,825 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-08 17:38:15,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 165 transitions. [2020-07-08 17:38:15,832 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 165 transitions. Word has length 58 [2020-07-08 17:38:15,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:15,833 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 165 transitions. [2020-07-08 17:38:15,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 17:38:15,833 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 128 states and 165 transitions. [2020-07-08 17:38:16,082 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:16,083 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 165 transitions. [2020-07-08 17:38:16,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-08 17:38:16,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:16,085 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:16,085 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-08 17:38:16,085 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:16,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:16,085 INFO L82 PathProgramCache]: Analyzing trace with hash -1807369608, now seen corresponding path program 1 times [2020-07-08 17:38:16,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:16,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558298015] [2020-07-08 17:38:16,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:16,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,200 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,201 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-08 17:38:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,218 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,219 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,220 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #123#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,228 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,229 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,229 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,230 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #125#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,239 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,239 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,239 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,240 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #127#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,247 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,247 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,248 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,251 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #129#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,259 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,260 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,260 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,261 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #131#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:16,271 INFO L280 TraceCheckUtils]: 0: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,271 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,271 INFO L280 TraceCheckUtils]: 2: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,272 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #133#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,273 INFO L263 TraceCheckUtils]: 0: Hoare triple {4328#true} call ULTIMATE.init(); {4328#true} is VALID [2020-07-08 17:38:16,273 INFO L280 TraceCheckUtils]: 1: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,273 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {4328#true} {4328#true} #119#return; {4328#true} is VALID [2020-07-08 17:38:16,274 INFO L263 TraceCheckUtils]: 3: Hoare triple {4328#true} call #t~ret10 := main(); {4328#true} is VALID [2020-07-08 17:38:16,274 INFO L280 TraceCheckUtils]: 4: Hoare triple {4328#true} havoc ~len~0; {4328#true} is VALID [2020-07-08 17:38:16,274 INFO L280 TraceCheckUtils]: 5: Hoare triple {4328#true} havoc ~i~0; {4328#true} is VALID [2020-07-08 17:38:16,274 INFO L280 TraceCheckUtils]: 6: Hoare triple {4328#true} havoc ~j~0; {4328#true} is VALID [2020-07-08 17:38:16,275 INFO L280 TraceCheckUtils]: 7: Hoare triple {4328#true} havoc ~bufsize~0; {4328#true} is VALID [2020-07-08 17:38:16,275 INFO L280 TraceCheckUtils]: 8: Hoare triple {4328#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {4328#true} is VALID [2020-07-08 17:38:16,275 INFO L280 TraceCheckUtils]: 9: Hoare triple {4328#true} ~bufsize~0 := #t~nondet0; {4328#true} is VALID [2020-07-08 17:38:16,276 INFO L280 TraceCheckUtils]: 10: Hoare triple {4328#true} havoc #t~nondet0; {4328#true} is VALID [2020-07-08 17:38:16,276 INFO L280 TraceCheckUtils]: 11: Hoare triple {4328#true} assume !(~bufsize~0 < 0); {4328#true} is VALID [2020-07-08 17:38:16,276 INFO L280 TraceCheckUtils]: 12: Hoare triple {4328#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {4328#true} is VALID [2020-07-08 17:38:16,276 INFO L280 TraceCheckUtils]: 13: Hoare triple {4328#true} ~len~0 := #t~nondet1; {4328#true} is VALID [2020-07-08 17:38:16,276 INFO L280 TraceCheckUtils]: 14: Hoare triple {4328#true} havoc #t~nondet1; {4328#true} is VALID [2020-07-08 17:38:16,277 INFO L280 TraceCheckUtils]: 15: Hoare triple {4328#true} ~limit~0 := ~bufsize~0 - 4; {4328#true} is VALID [2020-07-08 17:38:16,277 INFO L280 TraceCheckUtils]: 16: Hoare triple {4328#true} ~i~0 := 0; {4328#true} is VALID [2020-07-08 17:38:16,284 INFO L280 TraceCheckUtils]: 17: Hoare triple {4328#true} assume !!(~i~0 < ~len~0); {4328#true} is VALID [2020-07-08 17:38:16,284 INFO L280 TraceCheckUtils]: 18: Hoare triple {4328#true} ~j~0 := 0; {4328#true} is VALID [2020-07-08 17:38:16,284 INFO L280 TraceCheckUtils]: 19: Hoare triple {4328#true} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {4328#true} is VALID [2020-07-08 17:38:16,289 INFO L280 TraceCheckUtils]: 20: Hoare triple {4328#true} assume 1 + ~i~0 < ~len~0; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,290 INFO L263 TraceCheckUtils]: 21: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 17:38:16,290 INFO L280 TraceCheckUtils]: 22: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,290 INFO L280 TraceCheckUtils]: 23: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,291 INFO L280 TraceCheckUtils]: 24: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,292 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #123#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,292 INFO L263 TraceCheckUtils]: 26: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 17:38:16,292 INFO L280 TraceCheckUtils]: 27: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,292 INFO L280 TraceCheckUtils]: 28: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,293 INFO L280 TraceCheckUtils]: 29: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,294 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #125#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,295 INFO L280 TraceCheckUtils]: 31: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,296 INFO L280 TraceCheckUtils]: 32: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} assume !(0 != #t~nondet2); {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,299 INFO L280 TraceCheckUtils]: 33: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} havoc #t~nondet2; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,299 INFO L263 TraceCheckUtils]: 34: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 17:38:16,299 INFO L280 TraceCheckUtils]: 35: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,300 INFO L280 TraceCheckUtils]: 36: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,300 INFO L280 TraceCheckUtils]: 37: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,301 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #127#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,301 INFO L263 TraceCheckUtils]: 39: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 17:38:16,301 INFO L280 TraceCheckUtils]: 40: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,302 INFO L280 TraceCheckUtils]: 41: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,302 INFO L280 TraceCheckUtils]: 42: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,305 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #129#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,305 INFO L263 TraceCheckUtils]: 44: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 17:38:16,305 INFO L280 TraceCheckUtils]: 45: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,306 INFO L280 TraceCheckUtils]: 46: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,306 INFO L280 TraceCheckUtils]: 47: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,307 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #131#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,307 INFO L263 TraceCheckUtils]: 49: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {4328#true} is VALID [2020-07-08 17:38:16,307 INFO L280 TraceCheckUtils]: 50: Hoare triple {4328#true} ~cond := #in~cond; {4328#true} is VALID [2020-07-08 17:38:16,308 INFO L280 TraceCheckUtils]: 51: Hoare triple {4328#true} assume !(0 == ~cond); {4328#true} is VALID [2020-07-08 17:38:16,308 INFO L280 TraceCheckUtils]: 52: Hoare triple {4328#true} assume true; {4328#true} is VALID [2020-07-08 17:38:16,309 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {4328#true} {4332#(< (+ main_~i~0 1) main_~len~0)} #133#return; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,310 INFO L280 TraceCheckUtils]: 54: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} #t~post3 := ~j~0; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,310 INFO L280 TraceCheckUtils]: 55: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} ~j~0 := 1 + #t~post3; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,311 INFO L280 TraceCheckUtils]: 56: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} havoc #t~post3; {4332#(< (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,312 INFO L280 TraceCheckUtils]: 57: Hoare triple {4332#(< (+ main_~i~0 1) main_~len~0)} #t~post4 := ~i~0; {4357#(<= (+ |main_#t~post4| 2) main_~len~0)} is VALID [2020-07-08 17:38:16,313 INFO L280 TraceCheckUtils]: 58: Hoare triple {4357#(<= (+ |main_#t~post4| 2) main_~len~0)} ~i~0 := 1 + #t~post4; {4358#(<= (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,314 INFO L280 TraceCheckUtils]: 59: Hoare triple {4358#(<= (+ main_~i~0 1) main_~len~0)} havoc #t~post4; {4358#(<= (+ main_~i~0 1) main_~len~0)} is VALID [2020-07-08 17:38:16,315 INFO L263 TraceCheckUtils]: 60: Hoare triple {4358#(<= (+ main_~i~0 1) main_~len~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {4359#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:16,316 INFO L280 TraceCheckUtils]: 61: Hoare triple {4359#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {4360#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:16,317 INFO L280 TraceCheckUtils]: 62: Hoare triple {4360#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {4329#false} is VALID [2020-07-08 17:38:16,317 INFO L280 TraceCheckUtils]: 63: Hoare triple {4329#false} assume !false; {4329#false} is VALID [2020-07-08 17:38:16,323 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 17:38:16,323 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:16,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558298015] [2020-07-08 17:38:16,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:16,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 17:38:16,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313932101] [2020-07-08 17:38:16,326 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-08 17:38:16,327 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:16,327 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 17:38:16,382 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:16,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 17:38:16,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:16,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 17:38:16,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 17:38:16,384 INFO L87 Difference]: Start difference. First operand 128 states and 165 transitions. Second operand 7 states. [2020-07-08 17:38:17,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:17,187 INFO L93 Difference]: Finished difference Result 136 states and 172 transitions. [2020-07-08 17:38:17,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 17:38:17,187 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2020-07-08 17:38:17,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:17,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-08 17:38:17,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:17,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 101 transitions. [2020-07-08 17:38:17,194 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 101 transitions. [2020-07-08 17:38:17,312 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:17,316 INFO L225 Difference]: With dead ends: 136 [2020-07-08 17:38:17,316 INFO L226 Difference]: Without dead ends: 134 [2020-07-08 17:38:17,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 17:38:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-08 17:38:17,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2020-07-08 17:38:17,544 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:17,544 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 132 states. [2020-07-08 17:38:17,544 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 132 states. [2020-07-08 17:38:17,545 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 132 states. [2020-07-08 17:38:17,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:17,552 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-08 17:38:17,552 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-08 17:38:17,553 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:17,553 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:17,554 INFO L74 IsIncluded]: Start isIncluded. First operand 132 states. Second operand 134 states. [2020-07-08 17:38:17,554 INFO L87 Difference]: Start difference. First operand 132 states. Second operand 134 states. [2020-07-08 17:38:17,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:17,560 INFO L93 Difference]: Finished difference Result 134 states and 170 transitions. [2020-07-08 17:38:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 170 transitions. [2020-07-08 17:38:17,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:17,562 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:17,562 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:17,562 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:17,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-08 17:38:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 168 transitions. [2020-07-08 17:38:17,569 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 168 transitions. Word has length 64 [2020-07-08 17:38:17,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:17,569 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 168 transitions. [2020-07-08 17:38:17,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 17:38:17,569 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 132 states and 168 transitions. [2020-07-08 17:38:17,831 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 168 edges. 168 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:17,831 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 168 transitions. [2020-07-08 17:38:17,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-08 17:38:17,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:17,833 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:17,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-08 17:38:17,833 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:17,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:17,834 INFO L82 PathProgramCache]: Analyzing trace with hash -1715909932, now seen corresponding path program 1 times [2020-07-08 17:38:17,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:17,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554134962] [2020-07-08 17:38:17,835 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:17,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,943 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,943 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-08 17:38:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,949 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,949 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,949 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,950 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,955 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,956 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,956 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,957 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,961 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,962 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,962 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,963 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,967 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,968 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,968 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,969 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,974 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,974 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,974 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,975 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,980 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,980 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,980 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,981 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:17,986 INFO L280 TraceCheckUtils]: 0: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,986 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,986 INFO L280 TraceCheckUtils]: 2: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,987 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:17,987 INFO L263 TraceCheckUtils]: 0: Hoare triple {5173#true} call ULTIMATE.init(); {5173#true} is VALID [2020-07-08 17:38:17,988 INFO L280 TraceCheckUtils]: 1: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,988 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {5173#true} {5173#true} #119#return; {5173#true} is VALID [2020-07-08 17:38:17,988 INFO L263 TraceCheckUtils]: 3: Hoare triple {5173#true} call #t~ret10 := main(); {5173#true} is VALID [2020-07-08 17:38:17,988 INFO L280 TraceCheckUtils]: 4: Hoare triple {5173#true} havoc ~len~0; {5173#true} is VALID [2020-07-08 17:38:17,989 INFO L280 TraceCheckUtils]: 5: Hoare triple {5173#true} havoc ~i~0; {5173#true} is VALID [2020-07-08 17:38:17,989 INFO L280 TraceCheckUtils]: 6: Hoare triple {5173#true} havoc ~j~0; {5173#true} is VALID [2020-07-08 17:38:17,989 INFO L280 TraceCheckUtils]: 7: Hoare triple {5173#true} havoc ~bufsize~0; {5173#true} is VALID [2020-07-08 17:38:17,989 INFO L280 TraceCheckUtils]: 8: Hoare triple {5173#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {5173#true} is VALID [2020-07-08 17:38:17,990 INFO L280 TraceCheckUtils]: 9: Hoare triple {5173#true} ~bufsize~0 := #t~nondet0; {5173#true} is VALID [2020-07-08 17:38:17,990 INFO L280 TraceCheckUtils]: 10: Hoare triple {5173#true} havoc #t~nondet0; {5173#true} is VALID [2020-07-08 17:38:17,990 INFO L280 TraceCheckUtils]: 11: Hoare triple {5173#true} assume !(~bufsize~0 < 0); {5173#true} is VALID [2020-07-08 17:38:17,990 INFO L280 TraceCheckUtils]: 12: Hoare triple {5173#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {5173#true} is VALID [2020-07-08 17:38:17,990 INFO L280 TraceCheckUtils]: 13: Hoare triple {5173#true} ~len~0 := #t~nondet1; {5173#true} is VALID [2020-07-08 17:38:17,991 INFO L280 TraceCheckUtils]: 14: Hoare triple {5173#true} havoc #t~nondet1; {5173#true} is VALID [2020-07-08 17:38:17,991 INFO L280 TraceCheckUtils]: 15: Hoare triple {5173#true} ~limit~0 := ~bufsize~0 - 4; {5173#true} is VALID [2020-07-08 17:38:17,991 INFO L280 TraceCheckUtils]: 16: Hoare triple {5173#true} ~i~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,992 INFO L280 TraceCheckUtils]: 17: Hoare triple {5177#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,993 INFO L280 TraceCheckUtils]: 18: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,993 INFO L280 TraceCheckUtils]: 19: Hoare triple {5177#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,994 INFO L280 TraceCheckUtils]: 20: Hoare triple {5177#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,994 INFO L263 TraceCheckUtils]: 21: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 17:38:17,994 INFO L280 TraceCheckUtils]: 22: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,994 INFO L280 TraceCheckUtils]: 23: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,995 INFO L280 TraceCheckUtils]: 24: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,995 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #123#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,996 INFO L263 TraceCheckUtils]: 26: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 17:38:17,996 INFO L280 TraceCheckUtils]: 27: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,996 INFO L280 TraceCheckUtils]: 28: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:17,996 INFO L280 TraceCheckUtils]: 29: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:17,997 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #125#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,998 INFO L280 TraceCheckUtils]: 31: Hoare triple {5177#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,998 INFO L280 TraceCheckUtils]: 32: Hoare triple {5177#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,999 INFO L280 TraceCheckUtils]: 33: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~nondet2; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:17,999 INFO L263 TraceCheckUtils]: 34: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 17:38:17,999 INFO L280 TraceCheckUtils]: 35: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:17,999 INFO L280 TraceCheckUtils]: 36: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:18,000 INFO L280 TraceCheckUtils]: 37: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:18,001 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #127#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:18,001 INFO L263 TraceCheckUtils]: 39: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 17:38:18,001 INFO L280 TraceCheckUtils]: 40: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:18,001 INFO L280 TraceCheckUtils]: 41: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:18,001 INFO L280 TraceCheckUtils]: 42: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:18,002 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #129#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:18,002 INFO L263 TraceCheckUtils]: 44: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 17:38:18,003 INFO L280 TraceCheckUtils]: 45: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:18,003 INFO L280 TraceCheckUtils]: 46: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:18,003 INFO L280 TraceCheckUtils]: 47: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:18,004 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #131#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:18,004 INFO L263 TraceCheckUtils]: 49: Hoare triple {5177#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 17:38:18,004 INFO L280 TraceCheckUtils]: 50: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:18,005 INFO L280 TraceCheckUtils]: 51: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:18,005 INFO L280 TraceCheckUtils]: 52: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:18,006 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {5173#true} {5177#(<= 0 main_~i~0)} #133#return; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:18,006 INFO L280 TraceCheckUtils]: 54: Hoare triple {5177#(<= 0 main_~i~0)} #t~post3 := ~j~0; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:18,007 INFO L280 TraceCheckUtils]: 55: Hoare triple {5177#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:18,007 INFO L280 TraceCheckUtils]: 56: Hoare triple {5177#(<= 0 main_~i~0)} havoc #t~post3; {5177#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:18,008 INFO L280 TraceCheckUtils]: 57: Hoare triple {5177#(<= 0 main_~i~0)} #t~post4 := ~i~0; {5202#(<= 0 |main_#t~post4|)} is VALID [2020-07-08 17:38:18,009 INFO L280 TraceCheckUtils]: 58: Hoare triple {5202#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:18,009 INFO L280 TraceCheckUtils]: 59: Hoare triple {5203#(<= 1 main_~i~0)} havoc #t~post4; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:18,009 INFO L263 TraceCheckUtils]: 60: Hoare triple {5203#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {5173#true} is VALID [2020-07-08 17:38:18,010 INFO L280 TraceCheckUtils]: 61: Hoare triple {5173#true} ~cond := #in~cond; {5173#true} is VALID [2020-07-08 17:38:18,010 INFO L280 TraceCheckUtils]: 62: Hoare triple {5173#true} assume !(0 == ~cond); {5173#true} is VALID [2020-07-08 17:38:18,010 INFO L280 TraceCheckUtils]: 63: Hoare triple {5173#true} assume true; {5173#true} is VALID [2020-07-08 17:38:18,011 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {5173#true} {5203#(<= 1 main_~i~0)} #135#return; {5203#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:18,012 INFO L263 TraceCheckUtils]: 65: Hoare triple {5203#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {5208#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:18,013 INFO L280 TraceCheckUtils]: 66: Hoare triple {5208#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {5209#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:18,013 INFO L280 TraceCheckUtils]: 67: Hoare triple {5209#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {5174#false} is VALID [2020-07-08 17:38:18,013 INFO L280 TraceCheckUtils]: 68: Hoare triple {5174#false} assume !false; {5174#false} is VALID [2020-07-08 17:38:18,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 17:38:18,017 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:18,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554134962] [2020-07-08 17:38:18,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:18,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 17:38:18,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752721647] [2020-07-08 17:38:18,018 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-08 17:38:18,019 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:18,019 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 17:38:18,069 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:18,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 17:38:18,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:18,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 17:38:18,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 17:38:18,071 INFO L87 Difference]: Start difference. First operand 132 states and 168 transitions. Second operand 7 states. [2020-07-08 17:38:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:19,006 INFO L93 Difference]: Finished difference Result 162 states and 205 transitions. [2020-07-08 17:38:19,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 17:38:19,006 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2020-07-08 17:38:19,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:19,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-08 17:38:19,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:19,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 145 transitions. [2020-07-08 17:38:19,014 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 145 transitions. [2020-07-08 17:38:19,157 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 145 edges. 145 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:19,162 INFO L225 Difference]: With dead ends: 162 [2020-07-08 17:38:19,162 INFO L226 Difference]: Without dead ends: 160 [2020-07-08 17:38:19,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 17:38:19,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-08 17:38:19,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 146. [2020-07-08 17:38:19,413 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:19,413 INFO L82 GeneralOperation]: Start isEquivalent. First operand 160 states. Second operand 146 states. [2020-07-08 17:38:19,413 INFO L74 IsIncluded]: Start isIncluded. First operand 160 states. Second operand 146 states. [2020-07-08 17:38:19,413 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 146 states. [2020-07-08 17:38:19,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:19,422 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-08 17:38:19,422 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-08 17:38:19,423 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:19,423 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:19,423 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 160 states. [2020-07-08 17:38:19,424 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 160 states. [2020-07-08 17:38:19,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:19,431 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2020-07-08 17:38:19,432 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 203 transitions. [2020-07-08 17:38:19,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:19,433 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:19,433 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:19,433 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:19,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-08 17:38:19,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 185 transitions. [2020-07-08 17:38:19,440 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 185 transitions. Word has length 69 [2020-07-08 17:38:19,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:19,441 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 185 transitions. [2020-07-08 17:38:19,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 17:38:19,441 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 146 states and 185 transitions. [2020-07-08 17:38:19,682 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 185 edges. 185 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 185 transitions. [2020-07-08 17:38:19,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-07-08 17:38:19,684 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:19,684 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:19,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-08 17:38:19,684 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:19,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:19,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1298936315, now seen corresponding path program 1 times [2020-07-08 17:38:19,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:19,687 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [145071015] [2020-07-08 17:38:19,687 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,832 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,832 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-08 17:38:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,845 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,846 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,846 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,847 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,857 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,858 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,858 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,859 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,866 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,866 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,866 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,867 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,874 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,874 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,874 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,875 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,880 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,881 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,881 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,882 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,886 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,887 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,887 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,888 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:19,893 INFO L280 TraceCheckUtils]: 0: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,893 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,894 INFO L280 TraceCheckUtils]: 2: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,894 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:19,895 INFO L263 TraceCheckUtils]: 0: Hoare triple {6154#true} call ULTIMATE.init(); {6154#true} is VALID [2020-07-08 17:38:19,895 INFO L280 TraceCheckUtils]: 1: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,895 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {6154#true} {6154#true} #119#return; {6154#true} is VALID [2020-07-08 17:38:19,895 INFO L263 TraceCheckUtils]: 3: Hoare triple {6154#true} call #t~ret10 := main(); {6154#true} is VALID [2020-07-08 17:38:19,896 INFO L280 TraceCheckUtils]: 4: Hoare triple {6154#true} havoc ~len~0; {6154#true} is VALID [2020-07-08 17:38:19,896 INFO L280 TraceCheckUtils]: 5: Hoare triple {6154#true} havoc ~i~0; {6154#true} is VALID [2020-07-08 17:38:19,896 INFO L280 TraceCheckUtils]: 6: Hoare triple {6154#true} havoc ~j~0; {6154#true} is VALID [2020-07-08 17:38:19,896 INFO L280 TraceCheckUtils]: 7: Hoare triple {6154#true} havoc ~bufsize~0; {6154#true} is VALID [2020-07-08 17:38:19,896 INFO L280 TraceCheckUtils]: 8: Hoare triple {6154#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {6154#true} is VALID [2020-07-08 17:38:19,897 INFO L280 TraceCheckUtils]: 9: Hoare triple {6154#true} ~bufsize~0 := #t~nondet0; {6154#true} is VALID [2020-07-08 17:38:19,897 INFO L280 TraceCheckUtils]: 10: Hoare triple {6154#true} havoc #t~nondet0; {6154#true} is VALID [2020-07-08 17:38:19,897 INFO L280 TraceCheckUtils]: 11: Hoare triple {6154#true} assume !(~bufsize~0 < 0); {6154#true} is VALID [2020-07-08 17:38:19,897 INFO L280 TraceCheckUtils]: 12: Hoare triple {6154#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {6154#true} is VALID [2020-07-08 17:38:19,897 INFO L280 TraceCheckUtils]: 13: Hoare triple {6154#true} ~len~0 := #t~nondet1; {6154#true} is VALID [2020-07-08 17:38:19,897 INFO L280 TraceCheckUtils]: 14: Hoare triple {6154#true} havoc #t~nondet1; {6154#true} is VALID [2020-07-08 17:38:19,898 INFO L280 TraceCheckUtils]: 15: Hoare triple {6154#true} ~limit~0 := ~bufsize~0 - 4; {6154#true} is VALID [2020-07-08 17:38:19,898 INFO L280 TraceCheckUtils]: 16: Hoare triple {6154#true} ~i~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,899 INFO L280 TraceCheckUtils]: 17: Hoare triple {6158#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,900 INFO L280 TraceCheckUtils]: 18: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,900 INFO L280 TraceCheckUtils]: 19: Hoare triple {6158#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,901 INFO L280 TraceCheckUtils]: 20: Hoare triple {6158#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,901 INFO L263 TraceCheckUtils]: 21: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 17:38:19,901 INFO L280 TraceCheckUtils]: 22: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,901 INFO L280 TraceCheckUtils]: 23: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,902 INFO L280 TraceCheckUtils]: 24: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,908 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #123#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,908 INFO L263 TraceCheckUtils]: 26: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 17:38:19,908 INFO L280 TraceCheckUtils]: 27: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,909 INFO L280 TraceCheckUtils]: 28: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,909 INFO L280 TraceCheckUtils]: 29: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,910 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #125#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,910 INFO L280 TraceCheckUtils]: 31: Hoare triple {6158#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,911 INFO L280 TraceCheckUtils]: 32: Hoare triple {6158#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,911 INFO L280 TraceCheckUtils]: 33: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~nondet2; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,911 INFO L263 TraceCheckUtils]: 34: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 17:38:19,912 INFO L280 TraceCheckUtils]: 35: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,912 INFO L280 TraceCheckUtils]: 36: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,912 INFO L280 TraceCheckUtils]: 37: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,913 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #147#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,913 INFO L263 TraceCheckUtils]: 39: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 17:38:19,913 INFO L280 TraceCheckUtils]: 40: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,913 INFO L280 TraceCheckUtils]: 41: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,913 INFO L280 TraceCheckUtils]: 42: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,914 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #149#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,914 INFO L263 TraceCheckUtils]: 44: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 17:38:19,914 INFO L280 TraceCheckUtils]: 45: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,915 INFO L280 TraceCheckUtils]: 46: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,915 INFO L280 TraceCheckUtils]: 47: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,921 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #151#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,922 INFO L263 TraceCheckUtils]: 49: Hoare triple {6158#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 17:38:19,922 INFO L280 TraceCheckUtils]: 50: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,922 INFO L280 TraceCheckUtils]: 51: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,922 INFO L280 TraceCheckUtils]: 52: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,923 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {6154#true} {6158#(<= 0 main_~i~0)} #153#return; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,923 INFO L280 TraceCheckUtils]: 54: Hoare triple {6158#(<= 0 main_~i~0)} #t~post8 := ~j~0; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,924 INFO L280 TraceCheckUtils]: 55: Hoare triple {6158#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,924 INFO L280 TraceCheckUtils]: 56: Hoare triple {6158#(<= 0 main_~i~0)} havoc #t~post8; {6158#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:19,924 INFO L280 TraceCheckUtils]: 57: Hoare triple {6158#(<= 0 main_~i~0)} #t~post9 := ~i~0; {6183#(<= 0 |main_#t~post9|)} is VALID [2020-07-08 17:38:19,925 INFO L280 TraceCheckUtils]: 58: Hoare triple {6183#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:19,925 INFO L280 TraceCheckUtils]: 59: Hoare triple {6184#(<= 1 main_~i~0)} havoc #t~post9; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:19,926 INFO L280 TraceCheckUtils]: 60: Hoare triple {6184#(<= 1 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:19,928 INFO L280 TraceCheckUtils]: 61: Hoare triple {6184#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:19,928 INFO L263 TraceCheckUtils]: 62: Hoare triple {6184#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {6154#true} is VALID [2020-07-08 17:38:19,928 INFO L280 TraceCheckUtils]: 63: Hoare triple {6154#true} ~cond := #in~cond; {6154#true} is VALID [2020-07-08 17:38:19,928 INFO L280 TraceCheckUtils]: 64: Hoare triple {6154#true} assume !(0 == ~cond); {6154#true} is VALID [2020-07-08 17:38:19,928 INFO L280 TraceCheckUtils]: 65: Hoare triple {6154#true} assume true; {6154#true} is VALID [2020-07-08 17:38:19,929 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {6154#true} {6184#(<= 1 main_~i~0)} #123#return; {6184#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:19,929 INFO L263 TraceCheckUtils]: 67: Hoare triple {6184#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {6189#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:19,930 INFO L280 TraceCheckUtils]: 68: Hoare triple {6189#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {6190#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:19,930 INFO L280 TraceCheckUtils]: 69: Hoare triple {6190#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {6155#false} is VALID [2020-07-08 17:38:19,930 INFO L280 TraceCheckUtils]: 70: Hoare triple {6155#false} assume !false; {6155#false} is VALID [2020-07-08 17:38:19,934 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-08 17:38:19,934 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:19,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [145071015] [2020-07-08 17:38:19,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:19,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 17:38:19,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083349195] [2020-07-08 17:38:19,936 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-08 17:38:19,939 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:19,939 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 17:38:20,000 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:20,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 17:38:20,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:20,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 17:38:20,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 17:38:20,001 INFO L87 Difference]: Start difference. First operand 146 states and 185 transitions. Second operand 7 states. [2020-07-08 17:38:21,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:21,260 INFO L93 Difference]: Finished difference Result 210 states and 280 transitions. [2020-07-08 17:38:21,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 17:38:21,260 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 71 [2020-07-08 17:38:21,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:21,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:21,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-08 17:38:21,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:21,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 173 transitions. [2020-07-08 17:38:21,269 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 173 transitions. [2020-07-08 17:38:21,484 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 173 edges. 173 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:21,492 INFO L225 Difference]: With dead ends: 210 [2020-07-08 17:38:21,492 INFO L226 Difference]: Without dead ends: 206 [2020-07-08 17:38:21,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 17:38:21,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-08 17:38:21,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 188. [2020-07-08 17:38:21,931 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:21,931 INFO L82 GeneralOperation]: Start isEquivalent. First operand 206 states. Second operand 188 states. [2020-07-08 17:38:21,931 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 188 states. [2020-07-08 17:38:21,932 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 188 states. [2020-07-08 17:38:21,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:21,962 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-08 17:38:21,962 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-08 17:38:21,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:21,965 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:21,965 INFO L74 IsIncluded]: Start isIncluded. First operand 188 states. Second operand 206 states. [2020-07-08 17:38:21,965 INFO L87 Difference]: Start difference. First operand 188 states. Second operand 206 states. [2020-07-08 17:38:22,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:22,005 INFO L93 Difference]: Finished difference Result 206 states and 274 transitions. [2020-07-08 17:38:22,005 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2020-07-08 17:38:22,006 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:22,006 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:22,007 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:22,007 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:22,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 188 states. [2020-07-08 17:38:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 249 transitions. [2020-07-08 17:38:22,016 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 249 transitions. Word has length 71 [2020-07-08 17:38:22,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:22,016 INFO L479 AbstractCegarLoop]: Abstraction has 188 states and 249 transitions. [2020-07-08 17:38:22,016 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 17:38:22,016 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 188 states and 249 transitions. [2020-07-08 17:38:22,375 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 249 edges. 249 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 249 transitions. [2020-07-08 17:38:22,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-08 17:38:22,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:22,377 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:22,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-08 17:38:22,378 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:22,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:22,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1528474552, now seen corresponding path program 1 times [2020-07-08 17:38:22,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:22,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050166001] [2020-07-08 17:38:22,379 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,488 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,488 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-08 17:38:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,507 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,507 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,508 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,508 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,513 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,513 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,513 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,514 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,518 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,518 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,519 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,519 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,524 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,524 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,525 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,525 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,538 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,538 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,538 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,540 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,547 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,547 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,547 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,548 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,553 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,553 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,553 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,554 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:22,558 INFO L280 TraceCheckUtils]: 0: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,558 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,559 INFO L280 TraceCheckUtils]: 2: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,559 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,560 INFO L263 TraceCheckUtils]: 0: Hoare triple {7407#true} call ULTIMATE.init(); {7407#true} is VALID [2020-07-08 17:38:22,560 INFO L280 TraceCheckUtils]: 1: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,560 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {7407#true} {7407#true} #119#return; {7407#true} is VALID [2020-07-08 17:38:22,560 INFO L263 TraceCheckUtils]: 3: Hoare triple {7407#true} call #t~ret10 := main(); {7407#true} is VALID [2020-07-08 17:38:22,560 INFO L280 TraceCheckUtils]: 4: Hoare triple {7407#true} havoc ~len~0; {7407#true} is VALID [2020-07-08 17:38:22,561 INFO L280 TraceCheckUtils]: 5: Hoare triple {7407#true} havoc ~i~0; {7407#true} is VALID [2020-07-08 17:38:22,561 INFO L280 TraceCheckUtils]: 6: Hoare triple {7407#true} havoc ~j~0; {7407#true} is VALID [2020-07-08 17:38:22,561 INFO L280 TraceCheckUtils]: 7: Hoare triple {7407#true} havoc ~bufsize~0; {7407#true} is VALID [2020-07-08 17:38:22,561 INFO L280 TraceCheckUtils]: 8: Hoare triple {7407#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {7407#true} is VALID [2020-07-08 17:38:22,561 INFO L280 TraceCheckUtils]: 9: Hoare triple {7407#true} ~bufsize~0 := #t~nondet0; {7407#true} is VALID [2020-07-08 17:38:22,562 INFO L280 TraceCheckUtils]: 10: Hoare triple {7407#true} havoc #t~nondet0; {7407#true} is VALID [2020-07-08 17:38:22,562 INFO L280 TraceCheckUtils]: 11: Hoare triple {7407#true} assume !(~bufsize~0 < 0); {7407#true} is VALID [2020-07-08 17:38:22,562 INFO L280 TraceCheckUtils]: 12: Hoare triple {7407#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {7407#true} is VALID [2020-07-08 17:38:22,562 INFO L280 TraceCheckUtils]: 13: Hoare triple {7407#true} ~len~0 := #t~nondet1; {7407#true} is VALID [2020-07-08 17:38:22,562 INFO L280 TraceCheckUtils]: 14: Hoare triple {7407#true} havoc #t~nondet1; {7407#true} is VALID [2020-07-08 17:38:22,563 INFO L280 TraceCheckUtils]: 15: Hoare triple {7407#true} ~limit~0 := ~bufsize~0 - 4; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,563 INFO L280 TraceCheckUtils]: 16: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~i~0 := 0; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,564 INFO L280 TraceCheckUtils]: 17: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0); {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,564 INFO L280 TraceCheckUtils]: 18: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~j~0 := 0; {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,565 INFO L280 TraceCheckUtils]: 19: Hoare triple {7411#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,566 INFO L280 TraceCheckUtils]: 20: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} assume 1 + ~i~0 < ~len~0; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,566 INFO L263 TraceCheckUtils]: 21: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,566 INFO L280 TraceCheckUtils]: 22: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,566 INFO L280 TraceCheckUtils]: 23: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,566 INFO L280 TraceCheckUtils]: 24: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,567 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,567 INFO L263 TraceCheckUtils]: 26: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,568 INFO L280 TraceCheckUtils]: 27: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,568 INFO L280 TraceCheckUtils]: 28: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,568 INFO L280 TraceCheckUtils]: 29: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,569 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,569 INFO L280 TraceCheckUtils]: 31: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,570 INFO L280 TraceCheckUtils]: 32: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} assume !(0 != #t~nondet2); {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,570 INFO L280 TraceCheckUtils]: 33: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} havoc #t~nondet2; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,570 INFO L263 TraceCheckUtils]: 34: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,571 INFO L280 TraceCheckUtils]: 35: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,571 INFO L280 TraceCheckUtils]: 36: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,571 INFO L280 TraceCheckUtils]: 37: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,572 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,572 INFO L263 TraceCheckUtils]: 39: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,572 INFO L280 TraceCheckUtils]: 40: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,572 INFO L280 TraceCheckUtils]: 41: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,572 INFO L280 TraceCheckUtils]: 42: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,573 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,573 INFO L263 TraceCheckUtils]: 44: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,574 INFO L280 TraceCheckUtils]: 45: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,574 INFO L280 TraceCheckUtils]: 46: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,574 INFO L280 TraceCheckUtils]: 47: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,575 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,575 INFO L263 TraceCheckUtils]: 49: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,575 INFO L280 TraceCheckUtils]: 50: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,575 INFO L280 TraceCheckUtils]: 51: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,575 INFO L280 TraceCheckUtils]: 52: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,576 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {7407#true} {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,577 INFO L280 TraceCheckUtils]: 54: Hoare triple {7412#(<= (+ main_~j~0 5) main_~bufsize~0)} #t~post3 := ~j~0; {7437#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,578 INFO L280 TraceCheckUtils]: 55: Hoare triple {7437#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} ~j~0 := 1 + #t~post3; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,578 INFO L280 TraceCheckUtils]: 56: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post3; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,578 INFO L280 TraceCheckUtils]: 57: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #t~post4 := ~i~0; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,579 INFO L280 TraceCheckUtils]: 58: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} ~i~0 := 1 + #t~post4; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,579 INFO L280 TraceCheckUtils]: 59: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post4; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,580 INFO L263 TraceCheckUtils]: 60: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,580 INFO L280 TraceCheckUtils]: 61: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,580 INFO L280 TraceCheckUtils]: 62: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,580 INFO L280 TraceCheckUtils]: 63: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,581 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,581 INFO L263 TraceCheckUtils]: 65: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {7407#true} is VALID [2020-07-08 17:38:22,581 INFO L280 TraceCheckUtils]: 66: Hoare triple {7407#true} ~cond := #in~cond; {7407#true} is VALID [2020-07-08 17:38:22,582 INFO L280 TraceCheckUtils]: 67: Hoare triple {7407#true} assume !(0 == ~cond); {7407#true} is VALID [2020-07-08 17:38:22,582 INFO L280 TraceCheckUtils]: 68: Hoare triple {7407#true} assume true; {7407#true} is VALID [2020-07-08 17:38:22,582 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {7407#true} {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:22,583 INFO L263 TraceCheckUtils]: 70: Hoare triple {7438#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {7447#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:22,584 INFO L280 TraceCheckUtils]: 71: Hoare triple {7447#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {7448#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:22,585 INFO L280 TraceCheckUtils]: 72: Hoare triple {7448#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {7408#false} is VALID [2020-07-08 17:38:22,585 INFO L280 TraceCheckUtils]: 73: Hoare triple {7408#false} assume !false; {7408#false} is VALID [2020-07-08 17:38:22,589 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 17:38:22,590 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:22,590 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050166001] [2020-07-08 17:38:22,590 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:22,590 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-08 17:38:22,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829979474] [2020-07-08 17:38:22,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-08 17:38:22,591 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:22,591 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-08 17:38:22,654 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:22,654 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-08 17:38:22,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:22,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-08 17:38:22,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-08 17:38:22,656 INFO L87 Difference]: Start difference. First operand 188 states and 249 transitions. Second operand 8 states. [2020-07-08 17:38:23,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:23,768 INFO L93 Difference]: Finished difference Result 194 states and 254 transitions. [2020-07-08 17:38:23,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-08 17:38:23,768 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 74 [2020-07-08 17:38:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:23,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 17:38:23,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-08 17:38:23,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-08 17:38:23,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 91 transitions. [2020-07-08 17:38:23,772 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 91 transitions. [2020-07-08 17:38:23,876 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:23,882 INFO L225 Difference]: With dead ends: 194 [2020-07-08 17:38:23,882 INFO L226 Difference]: Without dead ends: 192 [2020-07-08 17:38:23,883 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-07-08 17:38:23,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2020-07-08 17:38:24,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2020-07-08 17:38:24,265 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:24,265 INFO L82 GeneralOperation]: Start isEquivalent. First operand 192 states. Second operand 192 states. [2020-07-08 17:38:24,265 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-08 17:38:24,265 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-08 17:38:24,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:24,273 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-08 17:38:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-08 17:38:24,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:24,274 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:24,275 INFO L74 IsIncluded]: Start isIncluded. First operand 192 states. Second operand 192 states. [2020-07-08 17:38:24,275 INFO L87 Difference]: Start difference. First operand 192 states. Second operand 192 states. [2020-07-08 17:38:24,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:24,282 INFO L93 Difference]: Finished difference Result 192 states and 252 transitions. [2020-07-08 17:38:24,282 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-08 17:38:24,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:24,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:24,283 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:24,283 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:24,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2020-07-08 17:38:24,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 252 transitions. [2020-07-08 17:38:24,290 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 252 transitions. Word has length 74 [2020-07-08 17:38:24,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:24,291 INFO L479 AbstractCegarLoop]: Abstraction has 192 states and 252 transitions. [2020-07-08 17:38:24,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-08 17:38:24,291 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 192 states and 252 transitions. [2020-07-08 17:38:24,712 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 252 edges. 252 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:24,712 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 252 transitions. [2020-07-08 17:38:24,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-07-08 17:38:24,714 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:24,714 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:24,714 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-08 17:38:24,714 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:24,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:24,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1530703596, now seen corresponding path program 1 times [2020-07-08 17:38:24,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:24,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2117908825] [2020-07-08 17:38:24,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:24,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,825 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,825 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-08 17:38:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,836 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,836 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,836 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,837 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,841 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,841 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,842 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,842 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,846 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,847 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,847 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,847 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,859 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,860 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,860 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,860 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,881 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,881 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,882 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,883 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,889 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,889 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,889 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,890 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,896 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,896 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,897 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,898 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,903 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,903 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,903 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,904 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:24,915 INFO L280 TraceCheckUtils]: 0: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,916 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,916 INFO L280 TraceCheckUtils]: 2: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,917 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,917 INFO L263 TraceCheckUtils]: 0: Hoare triple {8617#true} call ULTIMATE.init(); {8617#true} is VALID [2020-07-08 17:38:24,917 INFO L280 TraceCheckUtils]: 1: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,917 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {8617#true} {8617#true} #119#return; {8617#true} is VALID [2020-07-08 17:38:24,918 INFO L263 TraceCheckUtils]: 3: Hoare triple {8617#true} call #t~ret10 := main(); {8617#true} is VALID [2020-07-08 17:38:24,918 INFO L280 TraceCheckUtils]: 4: Hoare triple {8617#true} havoc ~len~0; {8617#true} is VALID [2020-07-08 17:38:24,918 INFO L280 TraceCheckUtils]: 5: Hoare triple {8617#true} havoc ~i~0; {8617#true} is VALID [2020-07-08 17:38:24,918 INFO L280 TraceCheckUtils]: 6: Hoare triple {8617#true} havoc ~j~0; {8617#true} is VALID [2020-07-08 17:38:24,918 INFO L280 TraceCheckUtils]: 7: Hoare triple {8617#true} havoc ~bufsize~0; {8617#true} is VALID [2020-07-08 17:38:24,919 INFO L280 TraceCheckUtils]: 8: Hoare triple {8617#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {8617#true} is VALID [2020-07-08 17:38:24,919 INFO L280 TraceCheckUtils]: 9: Hoare triple {8617#true} ~bufsize~0 := #t~nondet0; {8617#true} is VALID [2020-07-08 17:38:24,919 INFO L280 TraceCheckUtils]: 10: Hoare triple {8617#true} havoc #t~nondet0; {8617#true} is VALID [2020-07-08 17:38:24,919 INFO L280 TraceCheckUtils]: 11: Hoare triple {8617#true} assume !(~bufsize~0 < 0); {8617#true} is VALID [2020-07-08 17:38:24,919 INFO L280 TraceCheckUtils]: 12: Hoare triple {8617#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {8617#true} is VALID [2020-07-08 17:38:24,920 INFO L280 TraceCheckUtils]: 13: Hoare triple {8617#true} ~len~0 := #t~nondet1; {8617#true} is VALID [2020-07-08 17:38:24,920 INFO L280 TraceCheckUtils]: 14: Hoare triple {8617#true} havoc #t~nondet1; {8617#true} is VALID [2020-07-08 17:38:24,920 INFO L280 TraceCheckUtils]: 15: Hoare triple {8617#true} ~limit~0 := ~bufsize~0 - 4; {8617#true} is VALID [2020-07-08 17:38:24,920 INFO L280 TraceCheckUtils]: 16: Hoare triple {8617#true} ~i~0 := 0; {8617#true} is VALID [2020-07-08 17:38:24,920 INFO L280 TraceCheckUtils]: 17: Hoare triple {8617#true} assume !!(~i~0 < ~len~0); {8617#true} is VALID [2020-07-08 17:38:24,923 INFO L280 TraceCheckUtils]: 18: Hoare triple {8617#true} ~j~0 := 0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,924 INFO L280 TraceCheckUtils]: 19: Hoare triple {8621#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,925 INFO L280 TraceCheckUtils]: 20: Hoare triple {8621#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,925 INFO L263 TraceCheckUtils]: 21: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,925 INFO L280 TraceCheckUtils]: 22: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,925 INFO L280 TraceCheckUtils]: 23: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,925 INFO L280 TraceCheckUtils]: 24: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,926 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #123#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,927 INFO L263 TraceCheckUtils]: 26: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,927 INFO L280 TraceCheckUtils]: 27: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,927 INFO L280 TraceCheckUtils]: 28: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,927 INFO L280 TraceCheckUtils]: 29: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,928 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #125#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,929 INFO L280 TraceCheckUtils]: 31: Hoare triple {8621#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,929 INFO L280 TraceCheckUtils]: 32: Hoare triple {8621#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,930 INFO L280 TraceCheckUtils]: 33: Hoare triple {8621#(<= 0 main_~j~0)} havoc #t~nondet2; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,930 INFO L263 TraceCheckUtils]: 34: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,930 INFO L280 TraceCheckUtils]: 35: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,930 INFO L280 TraceCheckUtils]: 36: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,930 INFO L280 TraceCheckUtils]: 37: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,931 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #127#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,932 INFO L263 TraceCheckUtils]: 39: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,932 INFO L280 TraceCheckUtils]: 40: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,932 INFO L280 TraceCheckUtils]: 41: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,932 INFO L280 TraceCheckUtils]: 42: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,933 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #129#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,933 INFO L263 TraceCheckUtils]: 44: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,933 INFO L280 TraceCheckUtils]: 45: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,933 INFO L280 TraceCheckUtils]: 46: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,934 INFO L280 TraceCheckUtils]: 47: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,934 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #131#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,935 INFO L263 TraceCheckUtils]: 49: Hoare triple {8621#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,935 INFO L280 TraceCheckUtils]: 50: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,935 INFO L280 TraceCheckUtils]: 51: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,935 INFO L280 TraceCheckUtils]: 52: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,936 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {8617#true} {8621#(<= 0 main_~j~0)} #133#return; {8621#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:24,936 INFO L280 TraceCheckUtils]: 54: Hoare triple {8621#(<= 0 main_~j~0)} #t~post3 := ~j~0; {8646#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 17:38:24,937 INFO L280 TraceCheckUtils]: 55: Hoare triple {8646#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,938 INFO L280 TraceCheckUtils]: 56: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post3; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,938 INFO L280 TraceCheckUtils]: 57: Hoare triple {8647#(<= 1 main_~j~0)} #t~post4 := ~i~0; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,939 INFO L280 TraceCheckUtils]: 58: Hoare triple {8647#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,939 INFO L280 TraceCheckUtils]: 59: Hoare triple {8647#(<= 1 main_~j~0)} havoc #t~post4; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,940 INFO L263 TraceCheckUtils]: 60: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,940 INFO L280 TraceCheckUtils]: 61: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,940 INFO L280 TraceCheckUtils]: 62: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,940 INFO L280 TraceCheckUtils]: 63: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,942 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #135#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,942 INFO L263 TraceCheckUtils]: 65: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,942 INFO L280 TraceCheckUtils]: 66: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,942 INFO L280 TraceCheckUtils]: 67: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,943 INFO L280 TraceCheckUtils]: 68: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,944 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #137#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,944 INFO L263 TraceCheckUtils]: 70: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {8617#true} is VALID [2020-07-08 17:38:24,944 INFO L280 TraceCheckUtils]: 71: Hoare triple {8617#true} ~cond := #in~cond; {8617#true} is VALID [2020-07-08 17:38:24,944 INFO L280 TraceCheckUtils]: 72: Hoare triple {8617#true} assume !(0 == ~cond); {8617#true} is VALID [2020-07-08 17:38:24,944 INFO L280 TraceCheckUtils]: 73: Hoare triple {8617#true} assume true; {8617#true} is VALID [2020-07-08 17:38:24,946 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {8617#true} {8647#(<= 1 main_~j~0)} #139#return; {8647#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:24,947 INFO L263 TraceCheckUtils]: 75: Hoare triple {8647#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {8660#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:24,947 INFO L280 TraceCheckUtils]: 76: Hoare triple {8660#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {8661#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:24,948 INFO L280 TraceCheckUtils]: 77: Hoare triple {8661#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {8618#false} is VALID [2020-07-08 17:38:24,948 INFO L280 TraceCheckUtils]: 78: Hoare triple {8618#false} assume !false; {8618#false} is VALID [2020-07-08 17:38:24,953 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 17:38:24,954 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:24,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2117908825] [2020-07-08 17:38:24,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:24,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 17:38:24,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514528287] [2020-07-08 17:38:24,955 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-08 17:38:24,956 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:24,956 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 17:38:25,016 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:25,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 17:38:25,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:25,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 17:38:25,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 17:38:25,017 INFO L87 Difference]: Start difference. First operand 192 states and 252 transitions. Second operand 7 states. [2020-07-08 17:38:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:26,077 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2020-07-08 17:38:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 17:38:26,077 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-07-08 17:38:26,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:26,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:26,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-08 17:38:26,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2020-07-08 17:38:26,083 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 140 transitions. [2020-07-08 17:38:26,267 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 140 edges. 140 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:26,273 INFO L225 Difference]: With dead ends: 220 [2020-07-08 17:38:26,273 INFO L226 Difference]: Without dead ends: 218 [2020-07-08 17:38:26,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 17:38:26,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-08 17:38:26,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 206. [2020-07-08 17:38:26,706 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:26,707 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 206 states. [2020-07-08 17:38:26,707 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 206 states. [2020-07-08 17:38:26,707 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 206 states. [2020-07-08 17:38:26,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:26,715 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-08 17:38:26,715 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-08 17:38:26,717 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:26,717 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:26,717 INFO L74 IsIncluded]: Start isIncluded. First operand 206 states. Second operand 218 states. [2020-07-08 17:38:26,717 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 218 states. [2020-07-08 17:38:26,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:26,725 INFO L93 Difference]: Finished difference Result 218 states and 281 transitions. [2020-07-08 17:38:26,725 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2020-07-08 17:38:26,726 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:26,727 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:26,727 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:26,727 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:26,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2020-07-08 17:38:26,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 269 transitions. [2020-07-08 17:38:26,734 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 269 transitions. Word has length 79 [2020-07-08 17:38:26,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:26,734 INFO L479 AbstractCegarLoop]: Abstraction has 206 states and 269 transitions. [2020-07-08 17:38:26,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 17:38:26,735 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 206 states and 269 transitions. [2020-07-08 17:38:27,165 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 269 edges. 269 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:27,166 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 269 transitions. [2020-07-08 17:38:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-07-08 17:38:27,167 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:27,167 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:27,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-08 17:38:27,168 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:27,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1064000984, now seen corresponding path program 1 times [2020-07-08 17:38:27,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:27,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530410144] [2020-07-08 17:38:27,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,292 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,292 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-08 17:38:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,305 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,305 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,305 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,306 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,311 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,311 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,312 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,313 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,321 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,321 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,321 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,322 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,326 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,327 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,327 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,328 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,331 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,331 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,332 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,332 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,336 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,337 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,337 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,338 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,341 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,342 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,342 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,343 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,346 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,347 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,347 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,348 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:27,355 INFO L280 TraceCheckUtils]: 0: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,356 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,356 INFO L280 TraceCheckUtils]: 2: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,357 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,357 INFO L263 TraceCheckUtils]: 0: Hoare triple {9958#true} call ULTIMATE.init(); {9958#true} is VALID [2020-07-08 17:38:27,357 INFO L280 TraceCheckUtils]: 1: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,357 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {9958#true} {9958#true} #119#return; {9958#true} is VALID [2020-07-08 17:38:27,358 INFO L263 TraceCheckUtils]: 3: Hoare triple {9958#true} call #t~ret10 := main(); {9958#true} is VALID [2020-07-08 17:38:27,358 INFO L280 TraceCheckUtils]: 4: Hoare triple {9958#true} havoc ~len~0; {9958#true} is VALID [2020-07-08 17:38:27,358 INFO L280 TraceCheckUtils]: 5: Hoare triple {9958#true} havoc ~i~0; {9958#true} is VALID [2020-07-08 17:38:27,358 INFO L280 TraceCheckUtils]: 6: Hoare triple {9958#true} havoc ~j~0; {9958#true} is VALID [2020-07-08 17:38:27,358 INFO L280 TraceCheckUtils]: 7: Hoare triple {9958#true} havoc ~bufsize~0; {9958#true} is VALID [2020-07-08 17:38:27,359 INFO L280 TraceCheckUtils]: 8: Hoare triple {9958#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {9958#true} is VALID [2020-07-08 17:38:27,359 INFO L280 TraceCheckUtils]: 9: Hoare triple {9958#true} ~bufsize~0 := #t~nondet0; {9958#true} is VALID [2020-07-08 17:38:27,359 INFO L280 TraceCheckUtils]: 10: Hoare triple {9958#true} havoc #t~nondet0; {9958#true} is VALID [2020-07-08 17:38:27,359 INFO L280 TraceCheckUtils]: 11: Hoare triple {9958#true} assume !(~bufsize~0 < 0); {9958#true} is VALID [2020-07-08 17:38:27,359 INFO L280 TraceCheckUtils]: 12: Hoare triple {9958#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {9958#true} is VALID [2020-07-08 17:38:27,359 INFO L280 TraceCheckUtils]: 13: Hoare triple {9958#true} ~len~0 := #t~nondet1; {9958#true} is VALID [2020-07-08 17:38:27,360 INFO L280 TraceCheckUtils]: 14: Hoare triple {9958#true} havoc #t~nondet1; {9958#true} is VALID [2020-07-08 17:38:27,360 INFO L280 TraceCheckUtils]: 15: Hoare triple {9958#true} ~limit~0 := ~bufsize~0 - 4; {9958#true} is VALID [2020-07-08 17:38:27,360 INFO L280 TraceCheckUtils]: 16: Hoare triple {9958#true} ~i~0 := 0; {9958#true} is VALID [2020-07-08 17:38:27,360 INFO L280 TraceCheckUtils]: 17: Hoare triple {9958#true} assume !!(~i~0 < ~len~0); {9958#true} is VALID [2020-07-08 17:38:27,361 INFO L280 TraceCheckUtils]: 18: Hoare triple {9958#true} ~j~0 := 0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,361 INFO L280 TraceCheckUtils]: 19: Hoare triple {9962#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,362 INFO L280 TraceCheckUtils]: 20: Hoare triple {9962#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,362 INFO L263 TraceCheckUtils]: 21: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,362 INFO L280 TraceCheckUtils]: 22: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,362 INFO L280 TraceCheckUtils]: 23: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,363 INFO L280 TraceCheckUtils]: 24: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,363 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #123#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,363 INFO L263 TraceCheckUtils]: 26: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,364 INFO L280 TraceCheckUtils]: 27: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,364 INFO L280 TraceCheckUtils]: 28: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,364 INFO L280 TraceCheckUtils]: 29: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,365 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #125#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,365 INFO L280 TraceCheckUtils]: 31: Hoare triple {9962#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,366 INFO L280 TraceCheckUtils]: 32: Hoare triple {9962#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,366 INFO L280 TraceCheckUtils]: 33: Hoare triple {9962#(<= 0 main_~j~0)} havoc #t~nondet2; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,366 INFO L263 TraceCheckUtils]: 34: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,367 INFO L280 TraceCheckUtils]: 35: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,367 INFO L280 TraceCheckUtils]: 36: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,367 INFO L280 TraceCheckUtils]: 37: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,368 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #147#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,368 INFO L263 TraceCheckUtils]: 39: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,368 INFO L280 TraceCheckUtils]: 40: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,368 INFO L280 TraceCheckUtils]: 41: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,368 INFO L280 TraceCheckUtils]: 42: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,369 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #149#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,369 INFO L263 TraceCheckUtils]: 44: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,369 INFO L280 TraceCheckUtils]: 45: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,370 INFO L280 TraceCheckUtils]: 46: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,370 INFO L280 TraceCheckUtils]: 47: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,371 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #151#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,371 INFO L263 TraceCheckUtils]: 49: Hoare triple {9962#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,371 INFO L280 TraceCheckUtils]: 50: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,371 INFO L280 TraceCheckUtils]: 51: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,371 INFO L280 TraceCheckUtils]: 52: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,372 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {9958#true} {9962#(<= 0 main_~j~0)} #153#return; {9962#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:27,372 INFO L280 TraceCheckUtils]: 54: Hoare triple {9962#(<= 0 main_~j~0)} #t~post8 := ~j~0; {9987#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 17:38:27,373 INFO L280 TraceCheckUtils]: 55: Hoare triple {9987#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,374 INFO L280 TraceCheckUtils]: 56: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post8; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,374 INFO L280 TraceCheckUtils]: 57: Hoare triple {9988#(<= 1 main_~j~0)} #t~post9 := ~i~0; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,375 INFO L280 TraceCheckUtils]: 58: Hoare triple {9988#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,375 INFO L280 TraceCheckUtils]: 59: Hoare triple {9988#(<= 1 main_~j~0)} havoc #t~post9; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,376 INFO L280 TraceCheckUtils]: 60: Hoare triple {9988#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,376 INFO L280 TraceCheckUtils]: 61: Hoare triple {9988#(<= 1 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,376 INFO L263 TraceCheckUtils]: 62: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,377 INFO L280 TraceCheckUtils]: 63: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,377 INFO L280 TraceCheckUtils]: 64: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,377 INFO L280 TraceCheckUtils]: 65: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,379 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #147#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,379 INFO L263 TraceCheckUtils]: 67: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,379 INFO L280 TraceCheckUtils]: 68: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,379 INFO L280 TraceCheckUtils]: 69: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,380 INFO L280 TraceCheckUtils]: 70: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,380 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #149#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,380 INFO L263 TraceCheckUtils]: 72: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {9958#true} is VALID [2020-07-08 17:38:27,381 INFO L280 TraceCheckUtils]: 73: Hoare triple {9958#true} ~cond := #in~cond; {9958#true} is VALID [2020-07-08 17:38:27,381 INFO L280 TraceCheckUtils]: 74: Hoare triple {9958#true} assume !(0 == ~cond); {9958#true} is VALID [2020-07-08 17:38:27,381 INFO L280 TraceCheckUtils]: 75: Hoare triple {9958#true} assume true; {9958#true} is VALID [2020-07-08 17:38:27,382 INFO L275 TraceCheckUtils]: 76: Hoare quadruple {9958#true} {9988#(<= 1 main_~j~0)} #151#return; {9988#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:27,382 INFO L263 TraceCheckUtils]: 77: Hoare triple {9988#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {10001#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:27,383 INFO L280 TraceCheckUtils]: 78: Hoare triple {10001#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {10002#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:27,383 INFO L280 TraceCheckUtils]: 79: Hoare triple {10002#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {9959#false} is VALID [2020-07-08 17:38:27,384 INFO L280 TraceCheckUtils]: 80: Hoare triple {9959#false} assume !false; {9959#false} is VALID [2020-07-08 17:38:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-08 17:38:27,388 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:27,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530410144] [2020-07-08 17:38:27,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:27,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-08 17:38:27,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934558928] [2020-07-08 17:38:27,390 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-08 17:38:27,390 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:27,390 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 17:38:27,448 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:27,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 17:38:27,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:27,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 17:38:27,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-08 17:38:27,450 INFO L87 Difference]: Start difference. First operand 206 states and 269 transitions. Second operand 7 states. [2020-07-08 17:38:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:28,716 INFO L93 Difference]: Finished difference Result 252 states and 330 transitions. [2020-07-08 17:38:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 17:38:28,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 81 [2020-07-08 17:38:28,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-08 17:38:28,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 17:38:28,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 165 transitions. [2020-07-08 17:38:28,723 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 165 transitions. [2020-07-08 17:38:28,904 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:28,910 INFO L225 Difference]: With dead ends: 252 [2020-07-08 17:38:28,911 INFO L226 Difference]: Without dead ends: 246 [2020-07-08 17:38:28,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-08 17:38:28,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-07-08 17:38:29,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 230. [2020-07-08 17:38:29,423 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:29,423 INFO L82 GeneralOperation]: Start isEquivalent. First operand 246 states. Second operand 230 states. [2020-07-08 17:38:29,423 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 230 states. [2020-07-08 17:38:29,424 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 230 states. [2020-07-08 17:38:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:29,436 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-08 17:38:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-08 17:38:29,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:29,438 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:29,438 INFO L74 IsIncluded]: Start isIncluded. First operand 230 states. Second operand 246 states. [2020-07-08 17:38:29,439 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 246 states. [2020-07-08 17:38:29,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:29,450 INFO L93 Difference]: Finished difference Result 246 states and 319 transitions. [2020-07-08 17:38:29,451 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2020-07-08 17:38:29,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:29,452 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:29,452 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:29,453 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:29,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-08 17:38:29,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 302 transitions. [2020-07-08 17:38:29,461 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 302 transitions. Word has length 81 [2020-07-08 17:38:29,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:29,461 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 302 transitions. [2020-07-08 17:38:29,461 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 17:38:29,462 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 230 states and 302 transitions. [2020-07-08 17:38:29,927 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 302 edges. 302 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:29,927 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 302 transitions. [2020-07-08 17:38:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-07-08 17:38:29,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:29,929 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:29,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-08 17:38:29,929 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:29,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:29,930 INFO L82 PathProgramCache]: Analyzing trace with hash -895183749, now seen corresponding path program 1 times [2020-07-08 17:38:29,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:29,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749044444] [2020-07-08 17:38:29,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:29,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,147 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,148 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-08 17:38:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,155 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,155 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,155 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,157 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,170 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,171 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,171 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,172 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,177 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,177 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,178 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,179 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,184 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,184 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,184 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,188 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,199 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,199 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,199 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,200 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,212 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,213 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,214 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,222 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,222 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,223 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,224 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,229 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,229 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,229 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,231 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,236 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,237 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,237 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,238 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #139#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:30,245 INFO L280 TraceCheckUtils]: 0: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,246 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,246 INFO L280 TraceCheckUtils]: 2: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,247 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #141#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,247 INFO L263 TraceCheckUtils]: 0: Hoare triple {11467#true} call ULTIMATE.init(); {11467#true} is VALID [2020-07-08 17:38:30,247 INFO L280 TraceCheckUtils]: 1: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,247 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {11467#true} {11467#true} #119#return; {11467#true} is VALID [2020-07-08 17:38:30,247 INFO L263 TraceCheckUtils]: 3: Hoare triple {11467#true} call #t~ret10 := main(); {11467#true} is VALID [2020-07-08 17:38:30,248 INFO L280 TraceCheckUtils]: 4: Hoare triple {11467#true} havoc ~len~0; {11467#true} is VALID [2020-07-08 17:38:30,248 INFO L280 TraceCheckUtils]: 5: Hoare triple {11467#true} havoc ~i~0; {11467#true} is VALID [2020-07-08 17:38:30,248 INFO L280 TraceCheckUtils]: 6: Hoare triple {11467#true} havoc ~j~0; {11467#true} is VALID [2020-07-08 17:38:30,248 INFO L280 TraceCheckUtils]: 7: Hoare triple {11467#true} havoc ~bufsize~0; {11467#true} is VALID [2020-07-08 17:38:30,249 INFO L280 TraceCheckUtils]: 8: Hoare triple {11467#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {11467#true} is VALID [2020-07-08 17:38:30,249 INFO L280 TraceCheckUtils]: 9: Hoare triple {11467#true} ~bufsize~0 := #t~nondet0; {11467#true} is VALID [2020-07-08 17:38:30,249 INFO L280 TraceCheckUtils]: 10: Hoare triple {11467#true} havoc #t~nondet0; {11467#true} is VALID [2020-07-08 17:38:30,250 INFO L280 TraceCheckUtils]: 11: Hoare triple {11467#true} assume !(~bufsize~0 < 0); {11467#true} is VALID [2020-07-08 17:38:30,250 INFO L280 TraceCheckUtils]: 12: Hoare triple {11467#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {11467#true} is VALID [2020-07-08 17:38:30,250 INFO L280 TraceCheckUtils]: 13: Hoare triple {11467#true} ~len~0 := #t~nondet1; {11467#true} is VALID [2020-07-08 17:38:30,251 INFO L280 TraceCheckUtils]: 14: Hoare triple {11467#true} havoc #t~nondet1; {11467#true} is VALID [2020-07-08 17:38:30,254 INFO L280 TraceCheckUtils]: 15: Hoare triple {11467#true} ~limit~0 := ~bufsize~0 - 4; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,255 INFO L280 TraceCheckUtils]: 16: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~i~0 := 0; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,256 INFO L280 TraceCheckUtils]: 17: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0); {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,257 INFO L280 TraceCheckUtils]: 18: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} ~j~0 := 0; {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,258 INFO L280 TraceCheckUtils]: 19: Hoare triple {11471#(<= (+ main_~limit~0 4) main_~bufsize~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,258 INFO L280 TraceCheckUtils]: 20: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} assume 1 + ~i~0 < ~len~0; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,259 INFO L263 TraceCheckUtils]: 21: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,259 INFO L280 TraceCheckUtils]: 22: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,259 INFO L280 TraceCheckUtils]: 23: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,260 INFO L280 TraceCheckUtils]: 24: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,261 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #123#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,261 INFO L263 TraceCheckUtils]: 26: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,261 INFO L280 TraceCheckUtils]: 27: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,262 INFO L280 TraceCheckUtils]: 28: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,262 INFO L280 TraceCheckUtils]: 29: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,263 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #125#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,264 INFO L280 TraceCheckUtils]: 31: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,265 INFO L280 TraceCheckUtils]: 32: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} assume !(0 != #t~nondet2); {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,265 INFO L280 TraceCheckUtils]: 33: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} havoc #t~nondet2; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,266 INFO L263 TraceCheckUtils]: 34: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,266 INFO L280 TraceCheckUtils]: 35: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,266 INFO L280 TraceCheckUtils]: 36: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,267 INFO L280 TraceCheckUtils]: 37: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,268 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #127#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,268 INFO L263 TraceCheckUtils]: 39: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,268 INFO L280 TraceCheckUtils]: 40: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,269 INFO L280 TraceCheckUtils]: 41: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,269 INFO L280 TraceCheckUtils]: 42: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,270 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #129#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,270 INFO L263 TraceCheckUtils]: 44: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,271 INFO L280 TraceCheckUtils]: 45: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,271 INFO L280 TraceCheckUtils]: 46: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,271 INFO L280 TraceCheckUtils]: 47: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,272 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #131#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,273 INFO L263 TraceCheckUtils]: 49: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,273 INFO L280 TraceCheckUtils]: 50: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,273 INFO L280 TraceCheckUtils]: 51: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,273 INFO L280 TraceCheckUtils]: 52: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,274 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {11467#true} {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #133#return; {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,275 INFO L280 TraceCheckUtils]: 54: Hoare triple {11472#(<= (+ main_~j~0 5) main_~bufsize~0)} #t~post3 := ~j~0; {11497#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,276 INFO L280 TraceCheckUtils]: 55: Hoare triple {11497#(<= (+ |main_#t~post3| 5) main_~bufsize~0)} ~j~0 := 1 + #t~post3; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,280 INFO L280 TraceCheckUtils]: 56: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post3; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,280 INFO L280 TraceCheckUtils]: 57: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #t~post4 := ~i~0; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,281 INFO L280 TraceCheckUtils]: 58: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} ~i~0 := 1 + #t~post4; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,281 INFO L280 TraceCheckUtils]: 59: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} havoc #t~post4; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,281 INFO L263 TraceCheckUtils]: 60: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,282 INFO L280 TraceCheckUtils]: 61: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,282 INFO L280 TraceCheckUtils]: 62: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,282 INFO L280 TraceCheckUtils]: 63: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,283 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #135#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,283 INFO L263 TraceCheckUtils]: 65: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,283 INFO L280 TraceCheckUtils]: 66: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,284 INFO L280 TraceCheckUtils]: 67: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,284 INFO L280 TraceCheckUtils]: 68: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,285 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #137#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,286 INFO L263 TraceCheckUtils]: 70: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,286 INFO L280 TraceCheckUtils]: 71: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,286 INFO L280 TraceCheckUtils]: 72: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,287 INFO L280 TraceCheckUtils]: 73: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,288 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #139#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,288 INFO L263 TraceCheckUtils]: 75: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {11467#true} is VALID [2020-07-08 17:38:30,288 INFO L280 TraceCheckUtils]: 76: Hoare triple {11467#true} ~cond := #in~cond; {11467#true} is VALID [2020-07-08 17:38:30,289 INFO L280 TraceCheckUtils]: 77: Hoare triple {11467#true} assume !(0 == ~cond); {11467#true} is VALID [2020-07-08 17:38:30,289 INFO L280 TraceCheckUtils]: 78: Hoare triple {11467#true} assume true; {11467#true} is VALID [2020-07-08 17:38:30,290 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {11467#true} {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #141#return; {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,291 INFO L280 TraceCheckUtils]: 80: Hoare triple {11498#(<= (+ main_~j~0 4) main_~bufsize~0)} #t~post5 := ~j~0; {11515#(<= (+ |main_#t~post5| 4) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,292 INFO L280 TraceCheckUtils]: 81: Hoare triple {11515#(<= (+ |main_#t~post5| 4) main_~bufsize~0)} ~j~0 := 1 + #t~post5; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,293 INFO L280 TraceCheckUtils]: 82: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} havoc #t~post5; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,293 INFO L280 TraceCheckUtils]: 83: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} #t~post6 := ~i~0; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,294 INFO L280 TraceCheckUtils]: 84: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} ~i~0 := 1 + #t~post6; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,295 INFO L280 TraceCheckUtils]: 85: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} havoc #t~post6; {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} is VALID [2020-07-08 17:38:30,296 INFO L263 TraceCheckUtils]: 86: Hoare triple {11516#(<= (+ main_~j~0 3) main_~bufsize~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {11517#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:30,297 INFO L280 TraceCheckUtils]: 87: Hoare triple {11517#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {11518#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:30,298 INFO L280 TraceCheckUtils]: 88: Hoare triple {11518#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {11468#false} is VALID [2020-07-08 17:38:30,298 INFO L280 TraceCheckUtils]: 89: Hoare triple {11468#false} assume !false; {11468#false} is VALID [2020-07-08 17:38:30,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 17:38:30,317 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:30,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749044444] [2020-07-08 17:38:30,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:30,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-08 17:38:30,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535380389] [2020-07-08 17:38:30,318 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-08 17:38:30,318 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:30,318 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-08 17:38:30,392 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 63 edges. 63 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:30,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-08 17:38:30,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:30,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-08 17:38:30,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-07-08 17:38:30,394 INFO L87 Difference]: Start difference. First operand 230 states and 302 transitions. Second operand 10 states. [2020-07-08 17:38:31,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:31,869 INFO L93 Difference]: Finished difference Result 236 states and 307 transitions. [2020-07-08 17:38:31,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 17:38:31,869 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2020-07-08 17:38:31,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:31,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 17:38:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-08 17:38:31,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-08 17:38:31,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 91 transitions. [2020-07-08 17:38:31,873 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 91 transitions. [2020-07-08 17:38:31,985 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 91 edges. 91 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:31,991 INFO L225 Difference]: With dead ends: 236 [2020-07-08 17:38:31,991 INFO L226 Difference]: Without dead ends: 234 [2020-07-08 17:38:31,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2020-07-08 17:38:31,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-08 17:38:32,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-07-08 17:38:32,492 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:32,493 INFO L82 GeneralOperation]: Start isEquivalent. First operand 234 states. Second operand 234 states. [2020-07-08 17:38:32,493 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-08 17:38:32,493 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-08 17:38:32,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:32,501 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-08 17:38:32,501 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-08 17:38:32,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:32,502 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:32,502 INFO L74 IsIncluded]: Start isIncluded. First operand 234 states. Second operand 234 states. [2020-07-08 17:38:32,502 INFO L87 Difference]: Start difference. First operand 234 states. Second operand 234 states. [2020-07-08 17:38:32,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:32,510 INFO L93 Difference]: Finished difference Result 234 states and 305 transitions. [2020-07-08 17:38:32,510 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-08 17:38:32,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:32,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:32,511 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:32,512 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:32,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-08 17:38:32,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 305 transitions. [2020-07-08 17:38:32,519 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 305 transitions. Word has length 90 [2020-07-08 17:38:32,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:32,519 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 305 transitions. [2020-07-08 17:38:32,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-08 17:38:32,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 234 states and 305 transitions. [2020-07-08 17:38:33,025 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 305 edges. 305 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:33,025 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 305 transitions. [2020-07-08 17:38:33,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-08 17:38:33,030 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:33,030 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:33,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-08 17:38:33,030 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:33,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:33,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1272604239, now seen corresponding path program 1 times [2020-07-08 17:38:33,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:33,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134546472] [2020-07-08 17:38:33,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,157 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,157 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-08 17:38:33,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,162 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,162 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,162 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,164 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,168 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,168 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,169 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,169 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,174 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,174 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,174 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,175 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,179 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,179 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,179 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,180 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,187 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,187 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,188 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,188 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,192 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,192 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,192 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,193 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,196 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,196 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,197 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,197 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,201 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,201 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,201 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,202 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,207 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,208 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,208 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,209 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,213 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,214 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,214 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:33,219 INFO L280 TraceCheckUtils]: 0: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,219 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,219 INFO L280 TraceCheckUtils]: 2: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,222 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:33,222 INFO L263 TraceCheckUtils]: 0: Hoare triple {12945#true} call ULTIMATE.init(); {12945#true} is VALID [2020-07-08 17:38:33,223 INFO L280 TraceCheckUtils]: 1: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,223 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {12945#true} {12945#true} #119#return; {12945#true} is VALID [2020-07-08 17:38:33,223 INFO L263 TraceCheckUtils]: 3: Hoare triple {12945#true} call #t~ret10 := main(); {12945#true} is VALID [2020-07-08 17:38:33,223 INFO L280 TraceCheckUtils]: 4: Hoare triple {12945#true} havoc ~len~0; {12945#true} is VALID [2020-07-08 17:38:33,223 INFO L280 TraceCheckUtils]: 5: Hoare triple {12945#true} havoc ~i~0; {12945#true} is VALID [2020-07-08 17:38:33,224 INFO L280 TraceCheckUtils]: 6: Hoare triple {12945#true} havoc ~j~0; {12945#true} is VALID [2020-07-08 17:38:33,224 INFO L280 TraceCheckUtils]: 7: Hoare triple {12945#true} havoc ~bufsize~0; {12945#true} is VALID [2020-07-08 17:38:33,224 INFO L280 TraceCheckUtils]: 8: Hoare triple {12945#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {12945#true} is VALID [2020-07-08 17:38:33,224 INFO L280 TraceCheckUtils]: 9: Hoare triple {12945#true} ~bufsize~0 := #t~nondet0; {12945#true} is VALID [2020-07-08 17:38:33,225 INFO L280 TraceCheckUtils]: 10: Hoare triple {12945#true} havoc #t~nondet0; {12945#true} is VALID [2020-07-08 17:38:33,225 INFO L280 TraceCheckUtils]: 11: Hoare triple {12945#true} assume !(~bufsize~0 < 0); {12945#true} is VALID [2020-07-08 17:38:33,225 INFO L280 TraceCheckUtils]: 12: Hoare triple {12945#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {12945#true} is VALID [2020-07-08 17:38:33,225 INFO L280 TraceCheckUtils]: 13: Hoare triple {12945#true} ~len~0 := #t~nondet1; {12945#true} is VALID [2020-07-08 17:38:33,225 INFO L280 TraceCheckUtils]: 14: Hoare triple {12945#true} havoc #t~nondet1; {12945#true} is VALID [2020-07-08 17:38:33,226 INFO L280 TraceCheckUtils]: 15: Hoare triple {12945#true} ~limit~0 := ~bufsize~0 - 4; {12945#true} is VALID [2020-07-08 17:38:33,226 INFO L280 TraceCheckUtils]: 16: Hoare triple {12945#true} ~i~0 := 0; {12945#true} is VALID [2020-07-08 17:38:33,226 INFO L280 TraceCheckUtils]: 17: Hoare triple {12945#true} assume !!(~i~0 < ~len~0); {12945#true} is VALID [2020-07-08 17:38:33,228 INFO L280 TraceCheckUtils]: 18: Hoare triple {12945#true} ~j~0 := 0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,228 INFO L280 TraceCheckUtils]: 19: Hoare triple {12949#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,229 INFO L280 TraceCheckUtils]: 20: Hoare triple {12949#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,229 INFO L263 TraceCheckUtils]: 21: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,229 INFO L280 TraceCheckUtils]: 22: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,229 INFO L280 TraceCheckUtils]: 23: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,230 INFO L280 TraceCheckUtils]: 24: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,230 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #123#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,231 INFO L263 TraceCheckUtils]: 26: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,231 INFO L280 TraceCheckUtils]: 27: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,231 INFO L280 TraceCheckUtils]: 28: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,231 INFO L280 TraceCheckUtils]: 29: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,233 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #125#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,233 INFO L280 TraceCheckUtils]: 31: Hoare triple {12949#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,234 INFO L280 TraceCheckUtils]: 32: Hoare triple {12949#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,234 INFO L280 TraceCheckUtils]: 33: Hoare triple {12949#(<= 0 main_~j~0)} havoc #t~nondet2; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,235 INFO L263 TraceCheckUtils]: 34: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,235 INFO L280 TraceCheckUtils]: 35: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,235 INFO L280 TraceCheckUtils]: 36: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,235 INFO L280 TraceCheckUtils]: 37: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,236 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #127#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,236 INFO L263 TraceCheckUtils]: 39: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,236 INFO L280 TraceCheckUtils]: 40: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,237 INFO L280 TraceCheckUtils]: 41: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,237 INFO L280 TraceCheckUtils]: 42: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,237 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #129#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,238 INFO L263 TraceCheckUtils]: 44: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,238 INFO L280 TraceCheckUtils]: 45: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,238 INFO L280 TraceCheckUtils]: 46: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,239 INFO L280 TraceCheckUtils]: 47: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,240 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #131#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,240 INFO L263 TraceCheckUtils]: 49: Hoare triple {12949#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,240 INFO L280 TraceCheckUtils]: 50: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,241 INFO L280 TraceCheckUtils]: 51: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,241 INFO L280 TraceCheckUtils]: 52: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,242 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {12945#true} {12949#(<= 0 main_~j~0)} #133#return; {12949#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:33,242 INFO L280 TraceCheckUtils]: 54: Hoare triple {12949#(<= 0 main_~j~0)} #t~post3 := ~j~0; {12974#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 17:38:33,243 INFO L280 TraceCheckUtils]: 55: Hoare triple {12974#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,244 INFO L280 TraceCheckUtils]: 56: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post3; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,245 INFO L280 TraceCheckUtils]: 57: Hoare triple {12975#(<= 1 main_~j~0)} #t~post4 := ~i~0; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,246 INFO L280 TraceCheckUtils]: 58: Hoare triple {12975#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,246 INFO L280 TraceCheckUtils]: 59: Hoare triple {12975#(<= 1 main_~j~0)} havoc #t~post4; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,247 INFO L263 TraceCheckUtils]: 60: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,247 INFO L280 TraceCheckUtils]: 61: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,247 INFO L280 TraceCheckUtils]: 62: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,247 INFO L280 TraceCheckUtils]: 63: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,248 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #135#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,249 INFO L263 TraceCheckUtils]: 65: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,249 INFO L280 TraceCheckUtils]: 66: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,249 INFO L280 TraceCheckUtils]: 67: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,250 INFO L280 TraceCheckUtils]: 68: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,251 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #137#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,251 INFO L263 TraceCheckUtils]: 70: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,251 INFO L280 TraceCheckUtils]: 71: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,252 INFO L280 TraceCheckUtils]: 72: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,252 INFO L280 TraceCheckUtils]: 73: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,253 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #139#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,253 INFO L263 TraceCheckUtils]: 75: Hoare triple {12975#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,253 INFO L280 TraceCheckUtils]: 76: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,254 INFO L280 TraceCheckUtils]: 77: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,254 INFO L280 TraceCheckUtils]: 78: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,255 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {12945#true} {12975#(<= 1 main_~j~0)} #141#return; {12975#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:33,256 INFO L280 TraceCheckUtils]: 80: Hoare triple {12975#(<= 1 main_~j~0)} #t~post5 := ~j~0; {12992#(<= 1 |main_#t~post5|)} is VALID [2020-07-08 17:38:33,257 INFO L280 TraceCheckUtils]: 81: Hoare triple {12992#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:33,258 INFO L280 TraceCheckUtils]: 82: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post5; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:33,259 INFO L280 TraceCheckUtils]: 83: Hoare triple {12993#(<= 2 main_~j~0)} #t~post6 := ~i~0; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:33,260 INFO L280 TraceCheckUtils]: 84: Hoare triple {12993#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:33,260 INFO L280 TraceCheckUtils]: 85: Hoare triple {12993#(<= 2 main_~j~0)} havoc #t~post6; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:33,260 INFO L263 TraceCheckUtils]: 86: Hoare triple {12993#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {12945#true} is VALID [2020-07-08 17:38:33,261 INFO L280 TraceCheckUtils]: 87: Hoare triple {12945#true} ~cond := #in~cond; {12945#true} is VALID [2020-07-08 17:38:33,261 INFO L280 TraceCheckUtils]: 88: Hoare triple {12945#true} assume !(0 == ~cond); {12945#true} is VALID [2020-07-08 17:38:33,261 INFO L280 TraceCheckUtils]: 89: Hoare triple {12945#true} assume true; {12945#true} is VALID [2020-07-08 17:38:33,262 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {12945#true} {12993#(<= 2 main_~j~0)} #143#return; {12993#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:33,263 INFO L263 TraceCheckUtils]: 91: Hoare triple {12993#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {12998#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:33,263 INFO L280 TraceCheckUtils]: 92: Hoare triple {12998#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {12999#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:33,264 INFO L280 TraceCheckUtils]: 93: Hoare triple {12999#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {12946#false} is VALID [2020-07-08 17:38:33,264 INFO L280 TraceCheckUtils]: 94: Hoare triple {12946#false} assume !false; {12946#false} is VALID [2020-07-08 17:38:33,272 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-08 17:38:33,273 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:33,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134546472] [2020-07-08 17:38:33,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:33,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 17:38:33,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002075525] [2020-07-08 17:38:33,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-08 17:38:33,278 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:33,278 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 17:38:33,359 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 65 edges. 65 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:33,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 17:38:33,359 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:33,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 17:38:33,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 17:38:33,359 INFO L87 Difference]: Start difference. First operand 234 states and 305 transitions. Second operand 9 states. [2020-07-08 17:38:34,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:34,804 INFO L93 Difference]: Finished difference Result 262 states and 335 transitions. [2020-07-08 17:38:34,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 17:38:34,804 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 95 [2020-07-08 17:38:34,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:34,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:34,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-08 17:38:34,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:34,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 150 transitions. [2020-07-08 17:38:34,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 150 transitions. [2020-07-08 17:38:35,008 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 150 edges. 150 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:35,014 INFO L225 Difference]: With dead ends: 262 [2020-07-08 17:38:35,014 INFO L226 Difference]: Without dead ends: 260 [2020-07-08 17:38:35,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-08 17:38:35,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-07-08 17:38:35,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2020-07-08 17:38:35,540 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:35,540 INFO L82 GeneralOperation]: Start isEquivalent. First operand 260 states. Second operand 246 states. [2020-07-08 17:38:35,540 INFO L74 IsIncluded]: Start isIncluded. First operand 260 states. Second operand 246 states. [2020-07-08 17:38:35,540 INFO L87 Difference]: Start difference. First operand 260 states. Second operand 246 states. [2020-07-08 17:38:35,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:35,549 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-08 17:38:35,549 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-08 17:38:35,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:35,551 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:35,551 INFO L74 IsIncluded]: Start isIncluded. First operand 246 states. Second operand 260 states. [2020-07-08 17:38:35,551 INFO L87 Difference]: Start difference. First operand 246 states. Second operand 260 states. [2020-07-08 17:38:35,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:35,560 INFO L93 Difference]: Finished difference Result 260 states and 333 transitions. [2020-07-08 17:38:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2020-07-08 17:38:35,561 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:35,561 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:35,562 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:35,562 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:35,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2020-07-08 17:38:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 318 transitions. [2020-07-08 17:38:35,570 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 318 transitions. Word has length 95 [2020-07-08 17:38:35,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:35,571 INFO L479 AbstractCegarLoop]: Abstraction has 246 states and 318 transitions. [2020-07-08 17:38:35,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 17:38:35,571 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 246 states and 318 transitions. [2020-07-08 17:38:36,055 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 318 edges. 318 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:36,055 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 318 transitions. [2020-07-08 17:38:36,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-08 17:38:36,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:36,057 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:36,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-08 17:38:36,058 INFO L427 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:36,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:36,058 INFO L82 PathProgramCache]: Analyzing trace with hash -960498755, now seen corresponding path program 1 times [2020-07-08 17:38:36,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:36,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480243711] [2020-07-08 17:38:36,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:36,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,185 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,186 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-08 17:38:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,189 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,190 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,190 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,191 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,194 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,194 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,194 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,195 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,203 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,203 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,203 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,204 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,206 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,207 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,207 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,207 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,211 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,211 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,212 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,212 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,216 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,216 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,217 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,217 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,222 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,222 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,222 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,223 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,226 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,227 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,227 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,228 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,234 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,234 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,234 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,235 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,243 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,244 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,244 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,254 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,262 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,263 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,263 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,264 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,271 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,271 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,271 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,272 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:36,276 INFO L280 TraceCheckUtils]: 0: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,277 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,277 INFO L280 TraceCheckUtils]: 2: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,278 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:36,278 INFO L263 TraceCheckUtils]: 0: Hoare triple {14548#true} call ULTIMATE.init(); {14548#true} is VALID [2020-07-08 17:38:36,278 INFO L280 TraceCheckUtils]: 1: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,278 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {14548#true} {14548#true} #119#return; {14548#true} is VALID [2020-07-08 17:38:36,278 INFO L263 TraceCheckUtils]: 3: Hoare triple {14548#true} call #t~ret10 := main(); {14548#true} is VALID [2020-07-08 17:38:36,279 INFO L280 TraceCheckUtils]: 4: Hoare triple {14548#true} havoc ~len~0; {14548#true} is VALID [2020-07-08 17:38:36,279 INFO L280 TraceCheckUtils]: 5: Hoare triple {14548#true} havoc ~i~0; {14548#true} is VALID [2020-07-08 17:38:36,279 INFO L280 TraceCheckUtils]: 6: Hoare triple {14548#true} havoc ~j~0; {14548#true} is VALID [2020-07-08 17:38:36,279 INFO L280 TraceCheckUtils]: 7: Hoare triple {14548#true} havoc ~bufsize~0; {14548#true} is VALID [2020-07-08 17:38:36,279 INFO L280 TraceCheckUtils]: 8: Hoare triple {14548#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {14548#true} is VALID [2020-07-08 17:38:36,280 INFO L280 TraceCheckUtils]: 9: Hoare triple {14548#true} ~bufsize~0 := #t~nondet0; {14548#true} is VALID [2020-07-08 17:38:36,280 INFO L280 TraceCheckUtils]: 10: Hoare triple {14548#true} havoc #t~nondet0; {14548#true} is VALID [2020-07-08 17:38:36,280 INFO L280 TraceCheckUtils]: 11: Hoare triple {14548#true} assume !(~bufsize~0 < 0); {14548#true} is VALID [2020-07-08 17:38:36,280 INFO L280 TraceCheckUtils]: 12: Hoare triple {14548#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {14548#true} is VALID [2020-07-08 17:38:36,280 INFO L280 TraceCheckUtils]: 13: Hoare triple {14548#true} ~len~0 := #t~nondet1; {14548#true} is VALID [2020-07-08 17:38:36,281 INFO L280 TraceCheckUtils]: 14: Hoare triple {14548#true} havoc #t~nondet1; {14548#true} is VALID [2020-07-08 17:38:36,281 INFO L280 TraceCheckUtils]: 15: Hoare triple {14548#true} ~limit~0 := ~bufsize~0 - 4; {14548#true} is VALID [2020-07-08 17:38:36,281 INFO L280 TraceCheckUtils]: 16: Hoare triple {14548#true} ~i~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,282 INFO L280 TraceCheckUtils]: 17: Hoare triple {14552#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,283 INFO L280 TraceCheckUtils]: 18: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,283 INFO L280 TraceCheckUtils]: 19: Hoare triple {14552#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,284 INFO L280 TraceCheckUtils]: 20: Hoare triple {14552#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,284 INFO L263 TraceCheckUtils]: 21: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,284 INFO L280 TraceCheckUtils]: 22: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,284 INFO L280 TraceCheckUtils]: 23: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,284 INFO L280 TraceCheckUtils]: 24: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,285 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #123#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,285 INFO L263 TraceCheckUtils]: 26: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,285 INFO L280 TraceCheckUtils]: 27: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,286 INFO L280 TraceCheckUtils]: 28: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,286 INFO L280 TraceCheckUtils]: 29: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,286 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #125#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,287 INFO L280 TraceCheckUtils]: 31: Hoare triple {14552#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,288 INFO L280 TraceCheckUtils]: 32: Hoare triple {14552#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,288 INFO L280 TraceCheckUtils]: 33: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~nondet2; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,288 INFO L263 TraceCheckUtils]: 34: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,288 INFO L280 TraceCheckUtils]: 35: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,289 INFO L280 TraceCheckUtils]: 36: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,289 INFO L280 TraceCheckUtils]: 37: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,290 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #147#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,290 INFO L263 TraceCheckUtils]: 39: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,290 INFO L280 TraceCheckUtils]: 40: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,290 INFO L280 TraceCheckUtils]: 41: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,290 INFO L280 TraceCheckUtils]: 42: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,291 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #149#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,291 INFO L263 TraceCheckUtils]: 44: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,291 INFO L280 TraceCheckUtils]: 45: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,292 INFO L280 TraceCheckUtils]: 46: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,292 INFO L280 TraceCheckUtils]: 47: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,293 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #151#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,293 INFO L263 TraceCheckUtils]: 49: Hoare triple {14552#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,293 INFO L280 TraceCheckUtils]: 50: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,293 INFO L280 TraceCheckUtils]: 51: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,293 INFO L280 TraceCheckUtils]: 52: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,294 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {14548#true} {14552#(<= 0 main_~i~0)} #153#return; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,295 INFO L280 TraceCheckUtils]: 54: Hoare triple {14552#(<= 0 main_~i~0)} #t~post8 := ~j~0; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,295 INFO L280 TraceCheckUtils]: 55: Hoare triple {14552#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,296 INFO L280 TraceCheckUtils]: 56: Hoare triple {14552#(<= 0 main_~i~0)} havoc #t~post8; {14552#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:36,296 INFO L280 TraceCheckUtils]: 57: Hoare triple {14552#(<= 0 main_~i~0)} #t~post9 := ~i~0; {14577#(<= 0 |main_#t~post9|)} is VALID [2020-07-08 17:38:36,297 INFO L280 TraceCheckUtils]: 58: Hoare triple {14577#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,298 INFO L280 TraceCheckUtils]: 59: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post9; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,298 INFO L280 TraceCheckUtils]: 60: Hoare triple {14578#(<= 1 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,299 INFO L280 TraceCheckUtils]: 61: Hoare triple {14578#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,299 INFO L263 TraceCheckUtils]: 62: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,299 INFO L280 TraceCheckUtils]: 63: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,299 INFO L280 TraceCheckUtils]: 64: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,300 INFO L280 TraceCheckUtils]: 65: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,300 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #123#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,300 INFO L263 TraceCheckUtils]: 67: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,301 INFO L280 TraceCheckUtils]: 68: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,301 INFO L280 TraceCheckUtils]: 69: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,301 INFO L280 TraceCheckUtils]: 70: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,302 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #125#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,302 INFO L280 TraceCheckUtils]: 72: Hoare triple {14578#(<= 1 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,303 INFO L280 TraceCheckUtils]: 73: Hoare triple {14578#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,303 INFO L280 TraceCheckUtils]: 74: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~nondet2; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,304 INFO L263 TraceCheckUtils]: 75: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,304 INFO L280 TraceCheckUtils]: 76: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,304 INFO L280 TraceCheckUtils]: 77: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,304 INFO L280 TraceCheckUtils]: 78: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,305 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #127#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,305 INFO L263 TraceCheckUtils]: 80: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,305 INFO L280 TraceCheckUtils]: 81: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,305 INFO L280 TraceCheckUtils]: 82: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,306 INFO L280 TraceCheckUtils]: 83: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,306 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #129#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,306 INFO L263 TraceCheckUtils]: 85: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,307 INFO L280 TraceCheckUtils]: 86: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,307 INFO L280 TraceCheckUtils]: 87: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,307 INFO L280 TraceCheckUtils]: 88: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,308 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #131#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,308 INFO L263 TraceCheckUtils]: 90: Hoare triple {14578#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,308 INFO L280 TraceCheckUtils]: 91: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,308 INFO L280 TraceCheckUtils]: 92: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,309 INFO L280 TraceCheckUtils]: 93: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,309 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {14548#true} {14578#(<= 1 main_~i~0)} #133#return; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,310 INFO L280 TraceCheckUtils]: 95: Hoare triple {14578#(<= 1 main_~i~0)} #t~post3 := ~j~0; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,310 INFO L280 TraceCheckUtils]: 96: Hoare triple {14578#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,311 INFO L280 TraceCheckUtils]: 97: Hoare triple {14578#(<= 1 main_~i~0)} havoc #t~post3; {14578#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:36,312 INFO L280 TraceCheckUtils]: 98: Hoare triple {14578#(<= 1 main_~i~0)} #t~post4 := ~i~0; {14603#(<= 1 |main_#t~post4|)} is VALID [2020-07-08 17:38:36,312 INFO L280 TraceCheckUtils]: 99: Hoare triple {14603#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:36,313 INFO L280 TraceCheckUtils]: 100: Hoare triple {14604#(<= 2 main_~i~0)} havoc #t~post4; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:36,313 INFO L263 TraceCheckUtils]: 101: Hoare triple {14604#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {14548#true} is VALID [2020-07-08 17:38:36,313 INFO L280 TraceCheckUtils]: 102: Hoare triple {14548#true} ~cond := #in~cond; {14548#true} is VALID [2020-07-08 17:38:36,313 INFO L280 TraceCheckUtils]: 103: Hoare triple {14548#true} assume !(0 == ~cond); {14548#true} is VALID [2020-07-08 17:38:36,314 INFO L280 TraceCheckUtils]: 104: Hoare triple {14548#true} assume true; {14548#true} is VALID [2020-07-08 17:38:36,314 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {14548#true} {14604#(<= 2 main_~i~0)} #135#return; {14604#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:36,315 INFO L263 TraceCheckUtils]: 106: Hoare triple {14604#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {14609#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:36,316 INFO L280 TraceCheckUtils]: 107: Hoare triple {14609#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {14610#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:36,317 INFO L280 TraceCheckUtils]: 108: Hoare triple {14610#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {14549#false} is VALID [2020-07-08 17:38:36,317 INFO L280 TraceCheckUtils]: 109: Hoare triple {14549#false} assume !false; {14549#false} is VALID [2020-07-08 17:38:36,325 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-08 17:38:36,325 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:36,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480243711] [2020-07-08 17:38:36,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:36,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 17:38:36,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715009767] [2020-07-08 17:38:36,326 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 17:38:36,327 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:36,327 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 17:38:36,409 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:36,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 17:38:36,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:36,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 17:38:36,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 17:38:36,410 INFO L87 Difference]: Start difference. First operand 246 states and 318 transitions. Second operand 9 states. [2020-07-08 17:38:38,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:38,160 INFO L93 Difference]: Finished difference Result 293 states and 378 transitions. [2020-07-08 17:38:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 17:38:38,160 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 17:38:38,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:38,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-08 17:38:38,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 186 transitions. [2020-07-08 17:38:38,166 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 186 transitions. [2020-07-08 17:38:38,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:38,410 INFO L225 Difference]: With dead ends: 293 [2020-07-08 17:38:38,410 INFO L226 Difference]: Without dead ends: 291 [2020-07-08 17:38:38,411 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-08 17:38:38,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-08 17:38:39,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 270. [2020-07-08 17:38:39,008 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:39,008 INFO L82 GeneralOperation]: Start isEquivalent. First operand 291 states. Second operand 270 states. [2020-07-08 17:38:39,008 INFO L74 IsIncluded]: Start isIncluded. First operand 291 states. Second operand 270 states. [2020-07-08 17:38:39,009 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 270 states. [2020-07-08 17:38:39,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:39,019 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-08 17:38:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-08 17:38:39,020 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:39,020 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:39,021 INFO L74 IsIncluded]: Start isIncluded. First operand 270 states. Second operand 291 states. [2020-07-08 17:38:39,021 INFO L87 Difference]: Start difference. First operand 270 states. Second operand 291 states. [2020-07-08 17:38:39,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:39,030 INFO L93 Difference]: Finished difference Result 291 states and 376 transitions. [2020-07-08 17:38:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 376 transitions. [2020-07-08 17:38:39,032 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:39,032 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:39,032 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:39,032 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2020-07-08 17:38:39,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 349 transitions. [2020-07-08 17:38:39,041 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 349 transitions. Word has length 110 [2020-07-08 17:38:39,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:39,042 INFO L479 AbstractCegarLoop]: Abstraction has 270 states and 349 transitions. [2020-07-08 17:38:39,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 17:38:39,042 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 270 states and 349 transitions. [2020-07-08 17:38:39,566 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 349 edges. 349 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:39,567 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 349 transitions. [2020-07-08 17:38:39,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-07-08 17:38:39,569 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:39,571 INFO L422 BasicCegarLoop]: trace histogram [14, 13, 13, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:39,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-08 17:38:39,571 INFO L427 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:39,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:39,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1038471395, now seen corresponding path program 1 times [2020-07-08 17:38:39,572 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:39,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [38288324] [2020-07-08 17:38:39,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,768 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,769 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-08 17:38:39,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,772 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,772 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,772 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,773 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,778 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,779 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,779 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,781 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,784 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,784 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,785 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,785 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,792 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,792 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,792 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,793 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,798 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,798 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,798 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,800 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,803 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,803 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,804 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,807 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,810 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,811 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,811 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,813 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,816 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,816 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,817 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,817 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,822 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,822 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,822 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,823 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,829 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,830 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,830 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,831 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,835 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,835 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,835 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,836 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,840 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,840 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,840 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,841 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:39,849 INFO L280 TraceCheckUtils]: 0: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,850 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,850 INFO L280 TraceCheckUtils]: 2: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,851 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,851 INFO L263 TraceCheckUtils]: 0: Hoare triple {16331#true} call ULTIMATE.init(); {16331#true} is VALID [2020-07-08 17:38:39,851 INFO L280 TraceCheckUtils]: 1: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,851 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {16331#true} {16331#true} #119#return; {16331#true} is VALID [2020-07-08 17:38:39,851 INFO L263 TraceCheckUtils]: 3: Hoare triple {16331#true} call #t~ret10 := main(); {16331#true} is VALID [2020-07-08 17:38:39,852 INFO L280 TraceCheckUtils]: 4: Hoare triple {16331#true} havoc ~len~0; {16331#true} is VALID [2020-07-08 17:38:39,852 INFO L280 TraceCheckUtils]: 5: Hoare triple {16331#true} havoc ~i~0; {16331#true} is VALID [2020-07-08 17:38:39,852 INFO L280 TraceCheckUtils]: 6: Hoare triple {16331#true} havoc ~j~0; {16331#true} is VALID [2020-07-08 17:38:39,852 INFO L280 TraceCheckUtils]: 7: Hoare triple {16331#true} havoc ~bufsize~0; {16331#true} is VALID [2020-07-08 17:38:39,853 INFO L280 TraceCheckUtils]: 8: Hoare triple {16331#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {16331#true} is VALID [2020-07-08 17:38:39,853 INFO L280 TraceCheckUtils]: 9: Hoare triple {16331#true} ~bufsize~0 := #t~nondet0; {16331#true} is VALID [2020-07-08 17:38:39,853 INFO L280 TraceCheckUtils]: 10: Hoare triple {16331#true} havoc #t~nondet0; {16331#true} is VALID [2020-07-08 17:38:39,853 INFO L280 TraceCheckUtils]: 11: Hoare triple {16331#true} assume !(~bufsize~0 < 0); {16331#true} is VALID [2020-07-08 17:38:39,853 INFO L280 TraceCheckUtils]: 12: Hoare triple {16331#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {16331#true} is VALID [2020-07-08 17:38:39,853 INFO L280 TraceCheckUtils]: 13: Hoare triple {16331#true} ~len~0 := #t~nondet1; {16331#true} is VALID [2020-07-08 17:38:39,854 INFO L280 TraceCheckUtils]: 14: Hoare triple {16331#true} havoc #t~nondet1; {16331#true} is VALID [2020-07-08 17:38:39,854 INFO L280 TraceCheckUtils]: 15: Hoare triple {16331#true} ~limit~0 := ~bufsize~0 - 4; {16331#true} is VALID [2020-07-08 17:38:39,855 INFO L280 TraceCheckUtils]: 16: Hoare triple {16331#true} ~i~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,855 INFO L280 TraceCheckUtils]: 17: Hoare triple {16335#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,856 INFO L280 TraceCheckUtils]: 18: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,856 INFO L280 TraceCheckUtils]: 19: Hoare triple {16335#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,857 INFO L280 TraceCheckUtils]: 20: Hoare triple {16335#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,857 INFO L263 TraceCheckUtils]: 21: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,857 INFO L280 TraceCheckUtils]: 22: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,857 INFO L280 TraceCheckUtils]: 23: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,858 INFO L280 TraceCheckUtils]: 24: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,858 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #123#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,859 INFO L263 TraceCheckUtils]: 26: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,859 INFO L280 TraceCheckUtils]: 27: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,859 INFO L280 TraceCheckUtils]: 28: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,859 INFO L280 TraceCheckUtils]: 29: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,860 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #125#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,861 INFO L280 TraceCheckUtils]: 31: Hoare triple {16335#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,861 INFO L280 TraceCheckUtils]: 32: Hoare triple {16335#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,862 INFO L280 TraceCheckUtils]: 33: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~nondet2; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,862 INFO L263 TraceCheckUtils]: 34: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,862 INFO L280 TraceCheckUtils]: 35: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,862 INFO L280 TraceCheckUtils]: 36: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,863 INFO L280 TraceCheckUtils]: 37: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,863 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #127#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,863 INFO L263 TraceCheckUtils]: 39: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,864 INFO L280 TraceCheckUtils]: 40: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,864 INFO L280 TraceCheckUtils]: 41: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,864 INFO L280 TraceCheckUtils]: 42: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,865 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #129#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,865 INFO L263 TraceCheckUtils]: 44: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,865 INFO L280 TraceCheckUtils]: 45: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,865 INFO L280 TraceCheckUtils]: 46: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,866 INFO L280 TraceCheckUtils]: 47: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,866 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #131#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,867 INFO L263 TraceCheckUtils]: 49: Hoare triple {16335#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,867 INFO L280 TraceCheckUtils]: 50: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,867 INFO L280 TraceCheckUtils]: 51: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,867 INFO L280 TraceCheckUtils]: 52: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,868 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {16331#true} {16335#(<= 0 main_~i~0)} #133#return; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,868 INFO L280 TraceCheckUtils]: 54: Hoare triple {16335#(<= 0 main_~i~0)} #t~post3 := ~j~0; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,869 INFO L280 TraceCheckUtils]: 55: Hoare triple {16335#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,869 INFO L280 TraceCheckUtils]: 56: Hoare triple {16335#(<= 0 main_~i~0)} havoc #t~post3; {16335#(<= 0 main_~i~0)} is VALID [2020-07-08 17:38:39,870 INFO L280 TraceCheckUtils]: 57: Hoare triple {16335#(<= 0 main_~i~0)} #t~post4 := ~i~0; {16360#(<= 0 |main_#t~post4|)} is VALID [2020-07-08 17:38:39,870 INFO L280 TraceCheckUtils]: 58: Hoare triple {16360#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,871 INFO L280 TraceCheckUtils]: 59: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post4; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,871 INFO L263 TraceCheckUtils]: 60: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,871 INFO L280 TraceCheckUtils]: 61: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,871 INFO L280 TraceCheckUtils]: 62: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,872 INFO L280 TraceCheckUtils]: 63: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,872 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #135#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,872 INFO L263 TraceCheckUtils]: 65: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,872 INFO L280 TraceCheckUtils]: 66: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,873 INFO L280 TraceCheckUtils]: 67: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,873 INFO L280 TraceCheckUtils]: 68: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,873 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #137#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,874 INFO L263 TraceCheckUtils]: 70: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,874 INFO L280 TraceCheckUtils]: 71: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,874 INFO L280 TraceCheckUtils]: 72: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,874 INFO L280 TraceCheckUtils]: 73: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,875 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #139#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,875 INFO L263 TraceCheckUtils]: 75: Hoare triple {16361#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,875 INFO L280 TraceCheckUtils]: 76: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,876 INFO L280 TraceCheckUtils]: 77: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,876 INFO L280 TraceCheckUtils]: 78: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,876 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {16331#true} {16361#(<= 1 main_~i~0)} #141#return; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,877 INFO L280 TraceCheckUtils]: 80: Hoare triple {16361#(<= 1 main_~i~0)} #t~post5 := ~j~0; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,877 INFO L280 TraceCheckUtils]: 81: Hoare triple {16361#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,878 INFO L280 TraceCheckUtils]: 82: Hoare triple {16361#(<= 1 main_~i~0)} havoc #t~post5; {16361#(<= 1 main_~i~0)} is VALID [2020-07-08 17:38:39,879 INFO L280 TraceCheckUtils]: 83: Hoare triple {16361#(<= 1 main_~i~0)} #t~post6 := ~i~0; {16378#(<= 1 |main_#t~post6|)} is VALID [2020-07-08 17:38:39,879 INFO L280 TraceCheckUtils]: 84: Hoare triple {16378#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,880 INFO L280 TraceCheckUtils]: 85: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post6; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,880 INFO L263 TraceCheckUtils]: 86: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,880 INFO L280 TraceCheckUtils]: 87: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,881 INFO L280 TraceCheckUtils]: 88: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,881 INFO L280 TraceCheckUtils]: 89: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,882 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #143#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,882 INFO L263 TraceCheckUtils]: 91: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,882 INFO L280 TraceCheckUtils]: 92: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,882 INFO L280 TraceCheckUtils]: 93: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,882 INFO L280 TraceCheckUtils]: 94: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,883 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #145#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,884 INFO L280 TraceCheckUtils]: 96: Hoare triple {16379#(<= 2 main_~i~0)} #t~post7 := ~j~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,884 INFO L280 TraceCheckUtils]: 97: Hoare triple {16379#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,885 INFO L280 TraceCheckUtils]: 98: Hoare triple {16379#(<= 2 main_~i~0)} havoc #t~post7; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,885 INFO L280 TraceCheckUtils]: 99: Hoare triple {16379#(<= 2 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,886 INFO L280 TraceCheckUtils]: 100: Hoare triple {16379#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,887 INFO L263 TraceCheckUtils]: 101: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {16331#true} is VALID [2020-07-08 17:38:39,887 INFO L280 TraceCheckUtils]: 102: Hoare triple {16331#true} ~cond := #in~cond; {16331#true} is VALID [2020-07-08 17:38:39,887 INFO L280 TraceCheckUtils]: 103: Hoare triple {16331#true} assume !(0 == ~cond); {16331#true} is VALID [2020-07-08 17:38:39,887 INFO L280 TraceCheckUtils]: 104: Hoare triple {16331#true} assume true; {16331#true} is VALID [2020-07-08 17:38:39,888 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {16331#true} {16379#(<= 2 main_~i~0)} #123#return; {16379#(<= 2 main_~i~0)} is VALID [2020-07-08 17:38:39,889 INFO L263 TraceCheckUtils]: 106: Hoare triple {16379#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {16392#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:39,889 INFO L280 TraceCheckUtils]: 107: Hoare triple {16392#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {16393#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:39,890 INFO L280 TraceCheckUtils]: 108: Hoare triple {16393#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {16332#false} is VALID [2020-07-08 17:38:39,890 INFO L280 TraceCheckUtils]: 109: Hoare triple {16332#false} assume !false; {16332#false} is VALID [2020-07-08 17:38:39,901 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-08 17:38:39,901 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:39,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [38288324] [2020-07-08 17:38:39,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:39,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 17:38:39,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951496633] [2020-07-08 17:38:39,903 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 17:38:39,904 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:39,904 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 17:38:40,015 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 74 edges. 74 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:40,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 17:38:40,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:40,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 17:38:40,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 17:38:40,016 INFO L87 Difference]: Start difference. First operand 270 states and 349 transitions. Second operand 9 states. [2020-07-08 17:38:42,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:42,175 INFO L93 Difference]: Finished difference Result 372 states and 494 transitions. [2020-07-08 17:38:42,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-08 17:38:42,175 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-07-08 17:38:42,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:42,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:42,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-08 17:38:42,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:42,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 194 transitions. [2020-07-08 17:38:42,181 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states and 194 transitions. [2020-07-08 17:38:42,418 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 194 edges. 194 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:42,430 INFO L225 Difference]: With dead ends: 372 [2020-07-08 17:38:42,431 INFO L226 Difference]: Without dead ends: 368 [2020-07-08 17:38:42,432 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2020-07-08 17:38:42,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2020-07-08 17:38:43,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 345. [2020-07-08 17:38:43,230 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:43,230 INFO L82 GeneralOperation]: Start isEquivalent. First operand 368 states. Second operand 345 states. [2020-07-08 17:38:43,230 INFO L74 IsIncluded]: Start isIncluded. First operand 368 states. Second operand 345 states. [2020-07-08 17:38:43,231 INFO L87 Difference]: Start difference. First operand 368 states. Second operand 345 states. [2020-07-08 17:38:43,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:43,244 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-08 17:38:43,244 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-08 17:38:43,246 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:43,246 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:43,246 INFO L74 IsIncluded]: Start isIncluded. First operand 345 states. Second operand 368 states. [2020-07-08 17:38:43,246 INFO L87 Difference]: Start difference. First operand 345 states. Second operand 368 states. [2020-07-08 17:38:43,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:43,260 INFO L93 Difference]: Finished difference Result 368 states and 488 transitions. [2020-07-08 17:38:43,260 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 488 transitions. [2020-07-08 17:38:43,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:43,262 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:43,262 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:43,262 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:43,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2020-07-08 17:38:43,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 458 transitions. [2020-07-08 17:38:43,274 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 458 transitions. Word has length 110 [2020-07-08 17:38:43,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:43,275 INFO L479 AbstractCegarLoop]: Abstraction has 345 states and 458 transitions. [2020-07-08 17:38:43,275 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 17:38:43,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 345 states and 458 transitions. [2020-07-08 17:38:44,034 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 458 edges. 458 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 458 transitions. [2020-07-08 17:38:44,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-08 17:38:44,036 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:44,037 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:44,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-08 17:38:44,037 INFO L427 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:44,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:44,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1539222205, now seen corresponding path program 1 times [2020-07-08 17:38:44,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:44,038 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684350879] [2020-07-08 17:38:44,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,162 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,162 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-08 17:38:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,172 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,172 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,172 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,173 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,177 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,177 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,177 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,178 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,181 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,182 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,182 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,183 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,186 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,186 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,187 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,187 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,191 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,191 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,191 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,192 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,196 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,196 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,196 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,197 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,200 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,200 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,201 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,201 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,205 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,205 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,205 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,206 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,209 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,209 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,209 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,210 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,213 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,213 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,214 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,214 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,218 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,218 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,218 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,219 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,222 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,222 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,222 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,223 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,226 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,226 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,227 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,227 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,231 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,231 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,231 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,232 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:44,235 INFO L280 TraceCheckUtils]: 0: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,236 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,236 INFO L280 TraceCheckUtils]: 2: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,236 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,237 INFO L263 TraceCheckUtils]: 0: Hoare triple {18578#true} call ULTIMATE.init(); {18578#true} is VALID [2020-07-08 17:38:44,237 INFO L280 TraceCheckUtils]: 1: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,237 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {18578#true} {18578#true} #119#return; {18578#true} is VALID [2020-07-08 17:38:44,237 INFO L263 TraceCheckUtils]: 3: Hoare triple {18578#true} call #t~ret10 := main(); {18578#true} is VALID [2020-07-08 17:38:44,238 INFO L280 TraceCheckUtils]: 4: Hoare triple {18578#true} havoc ~len~0; {18578#true} is VALID [2020-07-08 17:38:44,238 INFO L280 TraceCheckUtils]: 5: Hoare triple {18578#true} havoc ~i~0; {18578#true} is VALID [2020-07-08 17:38:44,238 INFO L280 TraceCheckUtils]: 6: Hoare triple {18578#true} havoc ~j~0; {18578#true} is VALID [2020-07-08 17:38:44,238 INFO L280 TraceCheckUtils]: 7: Hoare triple {18578#true} havoc ~bufsize~0; {18578#true} is VALID [2020-07-08 17:38:44,238 INFO L280 TraceCheckUtils]: 8: Hoare triple {18578#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {18578#true} is VALID [2020-07-08 17:38:44,238 INFO L280 TraceCheckUtils]: 9: Hoare triple {18578#true} ~bufsize~0 := #t~nondet0; {18578#true} is VALID [2020-07-08 17:38:44,239 INFO L280 TraceCheckUtils]: 10: Hoare triple {18578#true} havoc #t~nondet0; {18578#true} is VALID [2020-07-08 17:38:44,239 INFO L280 TraceCheckUtils]: 11: Hoare triple {18578#true} assume !(~bufsize~0 < 0); {18578#true} is VALID [2020-07-08 17:38:44,239 INFO L280 TraceCheckUtils]: 12: Hoare triple {18578#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {18578#true} is VALID [2020-07-08 17:38:44,239 INFO L280 TraceCheckUtils]: 13: Hoare triple {18578#true} ~len~0 := #t~nondet1; {18578#true} is VALID [2020-07-08 17:38:44,239 INFO L280 TraceCheckUtils]: 14: Hoare triple {18578#true} havoc #t~nondet1; {18578#true} is VALID [2020-07-08 17:38:44,239 INFO L280 TraceCheckUtils]: 15: Hoare triple {18578#true} ~limit~0 := ~bufsize~0 - 4; {18578#true} is VALID [2020-07-08 17:38:44,240 INFO L280 TraceCheckUtils]: 16: Hoare triple {18578#true} ~i~0 := 0; {18578#true} is VALID [2020-07-08 17:38:44,240 INFO L280 TraceCheckUtils]: 17: Hoare triple {18578#true} assume !!(~i~0 < ~len~0); {18578#true} is VALID [2020-07-08 17:38:44,240 INFO L280 TraceCheckUtils]: 18: Hoare triple {18578#true} ~j~0 := 0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,241 INFO L280 TraceCheckUtils]: 19: Hoare triple {18582#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,241 INFO L280 TraceCheckUtils]: 20: Hoare triple {18582#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,241 INFO L263 TraceCheckUtils]: 21: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,241 INFO L280 TraceCheckUtils]: 22: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,241 INFO L280 TraceCheckUtils]: 23: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,241 INFO L280 TraceCheckUtils]: 24: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,242 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #123#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,242 INFO L263 TraceCheckUtils]: 26: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,242 INFO L280 TraceCheckUtils]: 27: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,243 INFO L280 TraceCheckUtils]: 28: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,243 INFO L280 TraceCheckUtils]: 29: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,243 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #125#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,244 INFO L280 TraceCheckUtils]: 31: Hoare triple {18582#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,247 INFO L280 TraceCheckUtils]: 32: Hoare triple {18582#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,251 INFO L280 TraceCheckUtils]: 33: Hoare triple {18582#(<= 0 main_~j~0)} havoc #t~nondet2; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,251 INFO L263 TraceCheckUtils]: 34: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,252 INFO L280 TraceCheckUtils]: 35: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,252 INFO L280 TraceCheckUtils]: 36: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,252 INFO L280 TraceCheckUtils]: 37: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,253 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #147#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,253 INFO L263 TraceCheckUtils]: 39: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,253 INFO L280 TraceCheckUtils]: 40: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,253 INFO L280 TraceCheckUtils]: 41: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,254 INFO L280 TraceCheckUtils]: 42: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,254 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #149#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,254 INFO L263 TraceCheckUtils]: 44: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,255 INFO L280 TraceCheckUtils]: 45: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,255 INFO L280 TraceCheckUtils]: 46: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,255 INFO L280 TraceCheckUtils]: 47: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,256 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #151#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,256 INFO L263 TraceCheckUtils]: 49: Hoare triple {18582#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,256 INFO L280 TraceCheckUtils]: 50: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,256 INFO L280 TraceCheckUtils]: 51: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,256 INFO L280 TraceCheckUtils]: 52: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,257 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {18578#true} {18582#(<= 0 main_~j~0)} #153#return; {18582#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:44,258 INFO L280 TraceCheckUtils]: 54: Hoare triple {18582#(<= 0 main_~j~0)} #t~post8 := ~j~0; {18607#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 17:38:44,258 INFO L280 TraceCheckUtils]: 55: Hoare triple {18607#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,259 INFO L280 TraceCheckUtils]: 56: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post8; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,259 INFO L280 TraceCheckUtils]: 57: Hoare triple {18608#(<= 1 main_~j~0)} #t~post9 := ~i~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,260 INFO L280 TraceCheckUtils]: 58: Hoare triple {18608#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,260 INFO L280 TraceCheckUtils]: 59: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~post9; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,261 INFO L280 TraceCheckUtils]: 60: Hoare triple {18608#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,262 INFO L280 TraceCheckUtils]: 61: Hoare triple {18608#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,262 INFO L263 TraceCheckUtils]: 62: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,262 INFO L280 TraceCheckUtils]: 63: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,262 INFO L280 TraceCheckUtils]: 64: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,262 INFO L280 TraceCheckUtils]: 65: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,263 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #123#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,263 INFO L263 TraceCheckUtils]: 67: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,264 INFO L280 TraceCheckUtils]: 68: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,264 INFO L280 TraceCheckUtils]: 69: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,264 INFO L280 TraceCheckUtils]: 70: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,265 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #125#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,265 INFO L280 TraceCheckUtils]: 72: Hoare triple {18608#(<= 1 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,266 INFO L280 TraceCheckUtils]: 73: Hoare triple {18608#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,266 INFO L280 TraceCheckUtils]: 74: Hoare triple {18608#(<= 1 main_~j~0)} havoc #t~nondet2; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,266 INFO L263 TraceCheckUtils]: 75: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,267 INFO L280 TraceCheckUtils]: 76: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,267 INFO L280 TraceCheckUtils]: 77: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,267 INFO L280 TraceCheckUtils]: 78: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,268 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #127#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,268 INFO L263 TraceCheckUtils]: 80: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,268 INFO L280 TraceCheckUtils]: 81: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,268 INFO L280 TraceCheckUtils]: 82: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,268 INFO L280 TraceCheckUtils]: 83: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,269 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #129#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,269 INFO L263 TraceCheckUtils]: 85: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,269 INFO L280 TraceCheckUtils]: 86: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,270 INFO L280 TraceCheckUtils]: 87: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,270 INFO L280 TraceCheckUtils]: 88: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,270 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #131#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,271 INFO L263 TraceCheckUtils]: 90: Hoare triple {18608#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,271 INFO L280 TraceCheckUtils]: 91: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,271 INFO L280 TraceCheckUtils]: 92: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,271 INFO L280 TraceCheckUtils]: 93: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,272 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {18578#true} {18608#(<= 1 main_~j~0)} #133#return; {18608#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:44,272 INFO L280 TraceCheckUtils]: 95: Hoare triple {18608#(<= 1 main_~j~0)} #t~post3 := ~j~0; {18633#(<= 1 |main_#t~post3|)} is VALID [2020-07-08 17:38:44,273 INFO L280 TraceCheckUtils]: 96: Hoare triple {18633#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,274 INFO L280 TraceCheckUtils]: 97: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post3; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,274 INFO L280 TraceCheckUtils]: 98: Hoare triple {18634#(<= 2 main_~j~0)} #t~post4 := ~i~0; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,275 INFO L280 TraceCheckUtils]: 99: Hoare triple {18634#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,275 INFO L280 TraceCheckUtils]: 100: Hoare triple {18634#(<= 2 main_~j~0)} havoc #t~post4; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,276 INFO L263 TraceCheckUtils]: 101: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,276 INFO L280 TraceCheckUtils]: 102: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,276 INFO L280 TraceCheckUtils]: 103: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,276 INFO L280 TraceCheckUtils]: 104: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,277 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #135#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,277 INFO L263 TraceCheckUtils]: 106: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,277 INFO L280 TraceCheckUtils]: 107: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,277 INFO L280 TraceCheckUtils]: 108: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,278 INFO L280 TraceCheckUtils]: 109: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,278 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #137#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,278 INFO L263 TraceCheckUtils]: 111: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {18578#true} is VALID [2020-07-08 17:38:44,279 INFO L280 TraceCheckUtils]: 112: Hoare triple {18578#true} ~cond := #in~cond; {18578#true} is VALID [2020-07-08 17:38:44,279 INFO L280 TraceCheckUtils]: 113: Hoare triple {18578#true} assume !(0 == ~cond); {18578#true} is VALID [2020-07-08 17:38:44,279 INFO L280 TraceCheckUtils]: 114: Hoare triple {18578#true} assume true; {18578#true} is VALID [2020-07-08 17:38:44,280 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {18578#true} {18634#(<= 2 main_~j~0)} #139#return; {18634#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:44,281 INFO L263 TraceCheckUtils]: 116: Hoare triple {18634#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {18647#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:44,281 INFO L280 TraceCheckUtils]: 117: Hoare triple {18647#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {18648#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:44,282 INFO L280 TraceCheckUtils]: 118: Hoare triple {18648#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {18579#false} is VALID [2020-07-08 17:38:44,282 INFO L280 TraceCheckUtils]: 119: Hoare triple {18579#false} assume !false; {18579#false} is VALID [2020-07-08 17:38:44,300 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-08 17:38:44,300 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:44,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684350879] [2020-07-08 17:38:44,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:44,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-08 17:38:44,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114833616] [2020-07-08 17:38:44,301 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-08 17:38:44,301 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:44,301 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-08 17:38:44,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:44,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-08 17:38:44,404 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:44,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-08 17:38:44,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-07-08 17:38:44,404 INFO L87 Difference]: Start difference. First operand 345 states and 458 transitions. Second operand 9 states. [2020-07-08 17:38:46,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:46,523 INFO L93 Difference]: Finished difference Result 379 states and 496 transitions. [2020-07-08 17:38:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-08 17:38:46,523 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 120 [2020-07-08 17:38:46,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:46,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-08 17:38:46,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-08 17:38:46,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 179 transitions. [2020-07-08 17:38:46,529 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 179 transitions. [2020-07-08 17:38:46,771 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 179 edges. 179 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:46,781 INFO L225 Difference]: With dead ends: 379 [2020-07-08 17:38:46,781 INFO L226 Difference]: Without dead ends: 377 [2020-07-08 17:38:46,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-08 17:38:46,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2020-07-08 17:38:47,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 359. [2020-07-08 17:38:47,654 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:47,654 INFO L82 GeneralOperation]: Start isEquivalent. First operand 377 states. Second operand 359 states. [2020-07-08 17:38:47,654 INFO L74 IsIncluded]: Start isIncluded. First operand 377 states. Second operand 359 states. [2020-07-08 17:38:47,654 INFO L87 Difference]: Start difference. First operand 377 states. Second operand 359 states. [2020-07-08 17:38:47,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:47,667 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-08 17:38:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-08 17:38:47,669 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:47,669 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:47,669 INFO L74 IsIncluded]: Start isIncluded. First operand 359 states. Second operand 377 states. [2020-07-08 17:38:47,669 INFO L87 Difference]: Start difference. First operand 359 states. Second operand 377 states. [2020-07-08 17:38:47,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:47,683 INFO L93 Difference]: Finished difference Result 377 states and 494 transitions. [2020-07-08 17:38:47,683 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 494 transitions. [2020-07-08 17:38:47,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:47,685 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:47,685 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:47,685 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:47,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 359 states. [2020-07-08 17:38:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 475 transitions. [2020-07-08 17:38:47,697 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 475 transitions. Word has length 120 [2020-07-08 17:38:47,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:47,697 INFO L479 AbstractCegarLoop]: Abstraction has 359 states and 475 transitions. [2020-07-08 17:38:47,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-08 17:38:47,698 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 359 states and 475 transitions. [2020-07-08 17:38:48,693 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 475 edges. 475 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:48,694 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 475 transitions. [2020-07-08 17:38:48,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-08 17:38:48,697 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:48,697 INFO L422 BasicCegarLoop]: trace histogram [16, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:48,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-08 17:38:48,698 INFO L427 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:48,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:48,698 INFO L82 PathProgramCache]: Analyzing trace with hash 871752502, now seen corresponding path program 1 times [2020-07-08 17:38:48,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:48,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300158008] [2020-07-08 17:38:48,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,005 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,005 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-08 17:38:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,010 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,011 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,011 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,012 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,017 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,017 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,018 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,018 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,022 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,023 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,023 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,024 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,027 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,028 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,028 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,029 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,033 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,033 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,033 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,034 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,038 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,038 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,039 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,040 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,044 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,045 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,045 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,046 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,051 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,052 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,052 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,053 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,059 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,061 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,066 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,066 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,067 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,068 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,075 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,076 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,076 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,077 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,083 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,083 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,083 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,085 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,090 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,090 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,090 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,092 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,096 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,097 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,097 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,099 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:49,103 INFO L280 TraceCheckUtils]: 0: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,104 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,104 INFO L280 TraceCheckUtils]: 2: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,105 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,106 INFO L263 TraceCheckUtils]: 0: Hoare triple {20891#true} call ULTIMATE.init(); {20891#true} is VALID [2020-07-08 17:38:49,106 INFO L280 TraceCheckUtils]: 1: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,106 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20891#true} {20891#true} #119#return; {20891#true} is VALID [2020-07-08 17:38:49,107 INFO L263 TraceCheckUtils]: 3: Hoare triple {20891#true} call #t~ret10 := main(); {20891#true} is VALID [2020-07-08 17:38:49,107 INFO L280 TraceCheckUtils]: 4: Hoare triple {20891#true} havoc ~len~0; {20891#true} is VALID [2020-07-08 17:38:49,107 INFO L280 TraceCheckUtils]: 5: Hoare triple {20891#true} havoc ~i~0; {20891#true} is VALID [2020-07-08 17:38:49,108 INFO L280 TraceCheckUtils]: 6: Hoare triple {20891#true} havoc ~j~0; {20891#true} is VALID [2020-07-08 17:38:49,108 INFO L280 TraceCheckUtils]: 7: Hoare triple {20891#true} havoc ~bufsize~0; {20891#true} is VALID [2020-07-08 17:38:49,108 INFO L280 TraceCheckUtils]: 8: Hoare triple {20891#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {20891#true} is VALID [2020-07-08 17:38:49,109 INFO L280 TraceCheckUtils]: 9: Hoare triple {20891#true} ~bufsize~0 := #t~nondet0; {20891#true} is VALID [2020-07-08 17:38:49,109 INFO L280 TraceCheckUtils]: 10: Hoare triple {20891#true} havoc #t~nondet0; {20891#true} is VALID [2020-07-08 17:38:49,109 INFO L280 TraceCheckUtils]: 11: Hoare triple {20891#true} assume !(~bufsize~0 < 0); {20891#true} is VALID [2020-07-08 17:38:49,109 INFO L280 TraceCheckUtils]: 12: Hoare triple {20891#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {20891#true} is VALID [2020-07-08 17:38:49,110 INFO L280 TraceCheckUtils]: 13: Hoare triple {20891#true} ~len~0 := #t~nondet1; {20891#true} is VALID [2020-07-08 17:38:49,110 INFO L280 TraceCheckUtils]: 14: Hoare triple {20891#true} havoc #t~nondet1; {20891#true} is VALID [2020-07-08 17:38:49,110 INFO L280 TraceCheckUtils]: 15: Hoare triple {20891#true} ~limit~0 := ~bufsize~0 - 4; {20891#true} is VALID [2020-07-08 17:38:49,111 INFO L280 TraceCheckUtils]: 16: Hoare triple {20891#true} ~i~0 := 0; {20891#true} is VALID [2020-07-08 17:38:49,111 INFO L280 TraceCheckUtils]: 17: Hoare triple {20891#true} assume !!(~i~0 < ~len~0); {20891#true} is VALID [2020-07-08 17:38:49,112 INFO L280 TraceCheckUtils]: 18: Hoare triple {20891#true} ~j~0 := 0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,113 INFO L280 TraceCheckUtils]: 19: Hoare triple {20895#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,114 INFO L280 TraceCheckUtils]: 20: Hoare triple {20895#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,114 INFO L263 TraceCheckUtils]: 21: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,115 INFO L280 TraceCheckUtils]: 22: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,115 INFO L280 TraceCheckUtils]: 23: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,115 INFO L280 TraceCheckUtils]: 24: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,117 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #123#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,117 INFO L263 TraceCheckUtils]: 26: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,117 INFO L280 TraceCheckUtils]: 27: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,118 INFO L280 TraceCheckUtils]: 28: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,118 INFO L280 TraceCheckUtils]: 29: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,119 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #125#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,120 INFO L280 TraceCheckUtils]: 31: Hoare triple {20895#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,121 INFO L280 TraceCheckUtils]: 32: Hoare triple {20895#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,122 INFO L280 TraceCheckUtils]: 33: Hoare triple {20895#(<= 0 main_~j~0)} havoc #t~nondet2; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,122 INFO L263 TraceCheckUtils]: 34: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,123 INFO L280 TraceCheckUtils]: 35: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,123 INFO L280 TraceCheckUtils]: 36: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,123 INFO L280 TraceCheckUtils]: 37: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,124 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #127#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,125 INFO L263 TraceCheckUtils]: 39: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,125 INFO L280 TraceCheckUtils]: 40: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,125 INFO L280 TraceCheckUtils]: 41: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,126 INFO L280 TraceCheckUtils]: 42: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,127 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #129#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,127 INFO L263 TraceCheckUtils]: 44: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,128 INFO L280 TraceCheckUtils]: 45: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,128 INFO L280 TraceCheckUtils]: 46: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,128 INFO L280 TraceCheckUtils]: 47: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,130 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #131#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,130 INFO L263 TraceCheckUtils]: 49: Hoare triple {20895#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,130 INFO L280 TraceCheckUtils]: 50: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,130 INFO L280 TraceCheckUtils]: 51: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,131 INFO L280 TraceCheckUtils]: 52: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,132 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {20891#true} {20895#(<= 0 main_~j~0)} #133#return; {20895#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:49,133 INFO L280 TraceCheckUtils]: 54: Hoare triple {20895#(<= 0 main_~j~0)} #t~post3 := ~j~0; {20920#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 17:38:49,134 INFO L280 TraceCheckUtils]: 55: Hoare triple {20920#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,135 INFO L280 TraceCheckUtils]: 56: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post3; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,136 INFO L280 TraceCheckUtils]: 57: Hoare triple {20921#(<= 1 main_~j~0)} #t~post4 := ~i~0; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,137 INFO L280 TraceCheckUtils]: 58: Hoare triple {20921#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,138 INFO L280 TraceCheckUtils]: 59: Hoare triple {20921#(<= 1 main_~j~0)} havoc #t~post4; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,138 INFO L263 TraceCheckUtils]: 60: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,139 INFO L280 TraceCheckUtils]: 61: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,139 INFO L280 TraceCheckUtils]: 62: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,139 INFO L280 TraceCheckUtils]: 63: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,140 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #135#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,141 INFO L263 TraceCheckUtils]: 65: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,141 INFO L280 TraceCheckUtils]: 66: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,141 INFO L280 TraceCheckUtils]: 67: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,142 INFO L280 TraceCheckUtils]: 68: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,143 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #137#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,143 INFO L263 TraceCheckUtils]: 70: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,143 INFO L280 TraceCheckUtils]: 71: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,143 INFO L280 TraceCheckUtils]: 72: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,144 INFO L280 TraceCheckUtils]: 73: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,145 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #139#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,145 INFO L263 TraceCheckUtils]: 75: Hoare triple {20921#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,146 INFO L280 TraceCheckUtils]: 76: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,146 INFO L280 TraceCheckUtils]: 77: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,146 INFO L280 TraceCheckUtils]: 78: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,147 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {20891#true} {20921#(<= 1 main_~j~0)} #141#return; {20921#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:49,148 INFO L280 TraceCheckUtils]: 80: Hoare triple {20921#(<= 1 main_~j~0)} #t~post5 := ~j~0; {20938#(<= 1 |main_#t~post5|)} is VALID [2020-07-08 17:38:49,150 INFO L280 TraceCheckUtils]: 81: Hoare triple {20938#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,151 INFO L280 TraceCheckUtils]: 82: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post5; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,152 INFO L280 TraceCheckUtils]: 83: Hoare triple {20939#(<= 2 main_~j~0)} #t~post6 := ~i~0; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,153 INFO L280 TraceCheckUtils]: 84: Hoare triple {20939#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,153 INFO L280 TraceCheckUtils]: 85: Hoare triple {20939#(<= 2 main_~j~0)} havoc #t~post6; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,154 INFO L263 TraceCheckUtils]: 86: Hoare triple {20939#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,154 INFO L280 TraceCheckUtils]: 87: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,154 INFO L280 TraceCheckUtils]: 88: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,155 INFO L280 TraceCheckUtils]: 89: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,156 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #143#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,156 INFO L263 TraceCheckUtils]: 91: Hoare triple {20939#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,157 INFO L280 TraceCheckUtils]: 92: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,157 INFO L280 TraceCheckUtils]: 93: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,157 INFO L280 TraceCheckUtils]: 94: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,158 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {20891#true} {20939#(<= 2 main_~j~0)} #145#return; {20939#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:49,159 INFO L280 TraceCheckUtils]: 96: Hoare triple {20939#(<= 2 main_~j~0)} #t~post7 := ~j~0; {20948#(<= 2 |main_#t~post7|)} is VALID [2020-07-08 17:38:49,161 INFO L280 TraceCheckUtils]: 97: Hoare triple {20948#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,162 INFO L280 TraceCheckUtils]: 98: Hoare triple {20949#(<= 3 main_~j~0)} havoc #t~post7; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,163 INFO L280 TraceCheckUtils]: 99: Hoare triple {20949#(<= 3 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,163 INFO L280 TraceCheckUtils]: 100: Hoare triple {20949#(<= 3 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,164 INFO L263 TraceCheckUtils]: 101: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,164 INFO L280 TraceCheckUtils]: 102: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,164 INFO L280 TraceCheckUtils]: 103: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,165 INFO L280 TraceCheckUtils]: 104: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,166 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #147#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,166 INFO L263 TraceCheckUtils]: 106: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,167 INFO L280 TraceCheckUtils]: 107: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,167 INFO L280 TraceCheckUtils]: 108: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,167 INFO L280 TraceCheckUtils]: 109: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,169 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #149#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,169 INFO L263 TraceCheckUtils]: 111: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {20891#true} is VALID [2020-07-08 17:38:49,169 INFO L280 TraceCheckUtils]: 112: Hoare triple {20891#true} ~cond := #in~cond; {20891#true} is VALID [2020-07-08 17:38:49,170 INFO L280 TraceCheckUtils]: 113: Hoare triple {20891#true} assume !(0 == ~cond); {20891#true} is VALID [2020-07-08 17:38:49,170 INFO L280 TraceCheckUtils]: 114: Hoare triple {20891#true} assume true; {20891#true} is VALID [2020-07-08 17:38:49,171 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {20891#true} {20949#(<= 3 main_~j~0)} #151#return; {20949#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:49,173 INFO L263 TraceCheckUtils]: 116: Hoare triple {20949#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {20962#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:49,174 INFO L280 TraceCheckUtils]: 117: Hoare triple {20962#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {20963#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:49,175 INFO L280 TraceCheckUtils]: 118: Hoare triple {20963#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {20892#false} is VALID [2020-07-08 17:38:49,175 INFO L280 TraceCheckUtils]: 119: Hoare triple {20892#false} assume !false; {20892#false} is VALID [2020-07-08 17:38:49,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-08 17:38:49,194 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:49,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300158008] [2020-07-08 17:38:49,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:49,195 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 17:38:49,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836916519] [2020-07-08 17:38:49,196 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-08 17:38:49,196 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:49,198 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 17:38:49,339 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 78 edges. 78 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:49,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 17:38:49,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:49,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 17:38:49,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 17:38:49,341 INFO L87 Difference]: Start difference. First operand 359 states and 475 transitions. Second operand 11 states. [2020-07-08 17:38:52,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:52,290 INFO L93 Difference]: Finished difference Result 424 states and 562 transitions. [2020-07-08 17:38:52,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-08 17:38:52,290 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 120 [2020-07-08 17:38:52,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:52,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:38:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-08 17:38:52,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:38:52,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 186 transitions. [2020-07-08 17:38:52,296 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states and 186 transitions. [2020-07-08 17:38:52,545 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 186 edges. 186 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:52,556 INFO L225 Difference]: With dead ends: 424 [2020-07-08 17:38:52,556 INFO L226 Difference]: Without dead ends: 418 [2020-07-08 17:38:52,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2020-07-08 17:38:52,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-08 17:38:53,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 398. [2020-07-08 17:38:53,539 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:38:53,539 INFO L82 GeneralOperation]: Start isEquivalent. First operand 418 states. Second operand 398 states. [2020-07-08 17:38:53,539 INFO L74 IsIncluded]: Start isIncluded. First operand 418 states. Second operand 398 states. [2020-07-08 17:38:53,539 INFO L87 Difference]: Start difference. First operand 418 states. Second operand 398 states. [2020-07-08 17:38:53,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:53,551 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-08 17:38:53,551 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-08 17:38:53,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:53,553 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:53,553 INFO L74 IsIncluded]: Start isIncluded. First operand 398 states. Second operand 418 states. [2020-07-08 17:38:53,553 INFO L87 Difference]: Start difference. First operand 398 states. Second operand 418 states. [2020-07-08 17:38:53,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:53,568 INFO L93 Difference]: Finished difference Result 418 states and 551 transitions. [2020-07-08 17:38:53,568 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 551 transitions. [2020-07-08 17:38:53,570 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:38:53,570 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:38:53,570 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:38:53,571 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:38:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-07-08 17:38:53,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 529 transitions. [2020-07-08 17:38:53,596 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 529 transitions. Word has length 120 [2020-07-08 17:38:53,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:38:53,597 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 529 transitions. [2020-07-08 17:38:53,597 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 17:38:53,597 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 398 states and 529 transitions. [2020-07-08 17:38:54,496 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 529 edges. 529 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:54,497 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 529 transitions. [2020-07-08 17:38:54,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-08 17:38:54,499 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:38:54,500 INFO L422 BasicCegarLoop]: trace histogram [18, 17, 17, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:38:54,500 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-08 17:38:54,500 INFO L427 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:38:54,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:38:54,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1668448602, now seen corresponding path program 1 times [2020-07-08 17:38:54,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:38:54,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432651087] [2020-07-08 17:38:54,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:38:54,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,656 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,656 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-08 17:38:54,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,660 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,660 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,661 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,661 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,665 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,665 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,666 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,666 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,669 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,670 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,670 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,671 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,674 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,674 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,674 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,675 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,679 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,679 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,679 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,680 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,683 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,683 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,684 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,684 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,698 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,698 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,698 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,699 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,703 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,703 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,703 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,704 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,708 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,708 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,709 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,709 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,713 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,713 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,714 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,714 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,719 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,720 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,720 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,721 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,724 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,724 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,725 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,725 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,729 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,729 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,729 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,730 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,735 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,736 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,736 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,737 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,741 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,741 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,742 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,746 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,746 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,746 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,747 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:38:54,751 INFO L280 TraceCheckUtils]: 0: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,751 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,751 INFO L280 TraceCheckUtils]: 2: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,752 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:54,752 INFO L263 TraceCheckUtils]: 0: Hoare triple {23462#true} call ULTIMATE.init(); {23462#true} is VALID [2020-07-08 17:38:54,752 INFO L280 TraceCheckUtils]: 1: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,753 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23462#true} {23462#true} #119#return; {23462#true} is VALID [2020-07-08 17:38:54,753 INFO L263 TraceCheckUtils]: 3: Hoare triple {23462#true} call #t~ret10 := main(); {23462#true} is VALID [2020-07-08 17:38:54,753 INFO L280 TraceCheckUtils]: 4: Hoare triple {23462#true} havoc ~len~0; {23462#true} is VALID [2020-07-08 17:38:54,753 INFO L280 TraceCheckUtils]: 5: Hoare triple {23462#true} havoc ~i~0; {23462#true} is VALID [2020-07-08 17:38:54,753 INFO L280 TraceCheckUtils]: 6: Hoare triple {23462#true} havoc ~j~0; {23462#true} is VALID [2020-07-08 17:38:54,754 INFO L280 TraceCheckUtils]: 7: Hoare triple {23462#true} havoc ~bufsize~0; {23462#true} is VALID [2020-07-08 17:38:54,754 INFO L280 TraceCheckUtils]: 8: Hoare triple {23462#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {23462#true} is VALID [2020-07-08 17:38:54,754 INFO L280 TraceCheckUtils]: 9: Hoare triple {23462#true} ~bufsize~0 := #t~nondet0; {23462#true} is VALID [2020-07-08 17:38:54,754 INFO L280 TraceCheckUtils]: 10: Hoare triple {23462#true} havoc #t~nondet0; {23462#true} is VALID [2020-07-08 17:38:54,754 INFO L280 TraceCheckUtils]: 11: Hoare triple {23462#true} assume !(~bufsize~0 < 0); {23462#true} is VALID [2020-07-08 17:38:54,754 INFO L280 TraceCheckUtils]: 12: Hoare triple {23462#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {23462#true} is VALID [2020-07-08 17:38:54,755 INFO L280 TraceCheckUtils]: 13: Hoare triple {23462#true} ~len~0 := #t~nondet1; {23462#true} is VALID [2020-07-08 17:38:54,755 INFO L280 TraceCheckUtils]: 14: Hoare triple {23462#true} havoc #t~nondet1; {23462#true} is VALID [2020-07-08 17:38:54,755 INFO L280 TraceCheckUtils]: 15: Hoare triple {23462#true} ~limit~0 := ~bufsize~0 - 4; {23462#true} is VALID [2020-07-08 17:38:54,755 INFO L280 TraceCheckUtils]: 16: Hoare triple {23462#true} ~i~0 := 0; {23462#true} is VALID [2020-07-08 17:38:54,755 INFO L280 TraceCheckUtils]: 17: Hoare triple {23462#true} assume !!(~i~0 < ~len~0); {23462#true} is VALID [2020-07-08 17:38:54,756 INFO L280 TraceCheckUtils]: 18: Hoare triple {23462#true} ~j~0 := 0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,757 INFO L280 TraceCheckUtils]: 19: Hoare triple {23466#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,757 INFO L280 TraceCheckUtils]: 20: Hoare triple {23466#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,758 INFO L263 TraceCheckUtils]: 21: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,758 INFO L280 TraceCheckUtils]: 22: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,758 INFO L280 TraceCheckUtils]: 23: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,758 INFO L280 TraceCheckUtils]: 24: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,759 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #123#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,759 INFO L263 TraceCheckUtils]: 26: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,760 INFO L280 TraceCheckUtils]: 27: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,760 INFO L280 TraceCheckUtils]: 28: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,760 INFO L280 TraceCheckUtils]: 29: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,761 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #125#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,762 INFO L280 TraceCheckUtils]: 31: Hoare triple {23466#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,762 INFO L280 TraceCheckUtils]: 32: Hoare triple {23466#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,763 INFO L280 TraceCheckUtils]: 33: Hoare triple {23466#(<= 0 main_~j~0)} havoc #t~nondet2; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,763 INFO L263 TraceCheckUtils]: 34: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,763 INFO L280 TraceCheckUtils]: 35: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,763 INFO L280 TraceCheckUtils]: 36: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,764 INFO L280 TraceCheckUtils]: 37: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,765 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #147#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,765 INFO L263 TraceCheckUtils]: 39: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,765 INFO L280 TraceCheckUtils]: 40: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,765 INFO L280 TraceCheckUtils]: 41: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,765 INFO L280 TraceCheckUtils]: 42: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,766 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #149#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,767 INFO L263 TraceCheckUtils]: 44: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,767 INFO L280 TraceCheckUtils]: 45: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,767 INFO L280 TraceCheckUtils]: 46: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,767 INFO L280 TraceCheckUtils]: 47: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,768 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #151#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,768 INFO L263 TraceCheckUtils]: 49: Hoare triple {23466#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,768 INFO L280 TraceCheckUtils]: 50: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,769 INFO L280 TraceCheckUtils]: 51: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,769 INFO L280 TraceCheckUtils]: 52: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,770 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {23462#true} {23466#(<= 0 main_~j~0)} #153#return; {23466#(<= 0 main_~j~0)} is VALID [2020-07-08 17:38:54,771 INFO L280 TraceCheckUtils]: 54: Hoare triple {23466#(<= 0 main_~j~0)} #t~post8 := ~j~0; {23491#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 17:38:54,771 INFO L280 TraceCheckUtils]: 55: Hoare triple {23491#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,772 INFO L280 TraceCheckUtils]: 56: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post8; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,773 INFO L280 TraceCheckUtils]: 57: Hoare triple {23492#(<= 1 main_~j~0)} #t~post9 := ~i~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,773 INFO L280 TraceCheckUtils]: 58: Hoare triple {23492#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,774 INFO L280 TraceCheckUtils]: 59: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~post9; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,775 INFO L280 TraceCheckUtils]: 60: Hoare triple {23492#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,775 INFO L280 TraceCheckUtils]: 61: Hoare triple {23492#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,776 INFO L263 TraceCheckUtils]: 62: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,776 INFO L280 TraceCheckUtils]: 63: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,776 INFO L280 TraceCheckUtils]: 64: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,776 INFO L280 TraceCheckUtils]: 65: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,777 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #123#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,777 INFO L263 TraceCheckUtils]: 67: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,778 INFO L280 TraceCheckUtils]: 68: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,778 INFO L280 TraceCheckUtils]: 69: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,778 INFO L280 TraceCheckUtils]: 70: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,779 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #125#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,780 INFO L280 TraceCheckUtils]: 72: Hoare triple {23492#(<= 1 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,780 INFO L280 TraceCheckUtils]: 73: Hoare triple {23492#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,781 INFO L280 TraceCheckUtils]: 74: Hoare triple {23492#(<= 1 main_~j~0)} havoc #t~nondet2; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,781 INFO L263 TraceCheckUtils]: 75: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,781 INFO L280 TraceCheckUtils]: 76: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,782 INFO L280 TraceCheckUtils]: 77: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,782 INFO L280 TraceCheckUtils]: 78: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,783 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #127#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,783 INFO L263 TraceCheckUtils]: 80: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,783 INFO L280 TraceCheckUtils]: 81: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,783 INFO L280 TraceCheckUtils]: 82: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,784 INFO L280 TraceCheckUtils]: 83: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,784 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #129#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,785 INFO L263 TraceCheckUtils]: 85: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,785 INFO L280 TraceCheckUtils]: 86: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,785 INFO L280 TraceCheckUtils]: 87: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,785 INFO L280 TraceCheckUtils]: 88: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,786 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #131#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,786 INFO L263 TraceCheckUtils]: 90: Hoare triple {23492#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,787 INFO L280 TraceCheckUtils]: 91: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,787 INFO L280 TraceCheckUtils]: 92: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,787 INFO L280 TraceCheckUtils]: 93: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,788 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {23462#true} {23492#(<= 1 main_~j~0)} #133#return; {23492#(<= 1 main_~j~0)} is VALID [2020-07-08 17:38:54,789 INFO L280 TraceCheckUtils]: 95: Hoare triple {23492#(<= 1 main_~j~0)} #t~post3 := ~j~0; {23517#(<= 1 |main_#t~post3|)} is VALID [2020-07-08 17:38:54,790 INFO L280 TraceCheckUtils]: 96: Hoare triple {23517#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,790 INFO L280 TraceCheckUtils]: 97: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post3; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,791 INFO L280 TraceCheckUtils]: 98: Hoare triple {23518#(<= 2 main_~j~0)} #t~post4 := ~i~0; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,792 INFO L280 TraceCheckUtils]: 99: Hoare triple {23518#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,792 INFO L280 TraceCheckUtils]: 100: Hoare triple {23518#(<= 2 main_~j~0)} havoc #t~post4; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,792 INFO L263 TraceCheckUtils]: 101: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,793 INFO L280 TraceCheckUtils]: 102: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,793 INFO L280 TraceCheckUtils]: 103: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,793 INFO L280 TraceCheckUtils]: 104: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,794 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #135#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,794 INFO L263 TraceCheckUtils]: 106: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,794 INFO L280 TraceCheckUtils]: 107: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,795 INFO L280 TraceCheckUtils]: 108: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,795 INFO L280 TraceCheckUtils]: 109: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,797 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #137#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,797 INFO L263 TraceCheckUtils]: 111: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,797 INFO L280 TraceCheckUtils]: 112: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,798 INFO L280 TraceCheckUtils]: 113: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,798 INFO L280 TraceCheckUtils]: 114: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,799 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #139#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,799 INFO L263 TraceCheckUtils]: 116: Hoare triple {23518#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,799 INFO L280 TraceCheckUtils]: 117: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,799 INFO L280 TraceCheckUtils]: 118: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,799 INFO L280 TraceCheckUtils]: 119: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,800 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {23462#true} {23518#(<= 2 main_~j~0)} #141#return; {23518#(<= 2 main_~j~0)} is VALID [2020-07-08 17:38:54,801 INFO L280 TraceCheckUtils]: 121: Hoare triple {23518#(<= 2 main_~j~0)} #t~post5 := ~j~0; {23535#(<= 2 |main_#t~post5|)} is VALID [2020-07-08 17:38:54,802 INFO L280 TraceCheckUtils]: 122: Hoare triple {23535#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:54,803 INFO L280 TraceCheckUtils]: 123: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post5; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:54,803 INFO L280 TraceCheckUtils]: 124: Hoare triple {23536#(<= 3 main_~j~0)} #t~post6 := ~i~0; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:54,804 INFO L280 TraceCheckUtils]: 125: Hoare triple {23536#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:54,804 INFO L280 TraceCheckUtils]: 126: Hoare triple {23536#(<= 3 main_~j~0)} havoc #t~post6; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:54,804 INFO L263 TraceCheckUtils]: 127: Hoare triple {23536#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {23462#true} is VALID [2020-07-08 17:38:54,805 INFO L280 TraceCheckUtils]: 128: Hoare triple {23462#true} ~cond := #in~cond; {23462#true} is VALID [2020-07-08 17:38:54,805 INFO L280 TraceCheckUtils]: 129: Hoare triple {23462#true} assume !(0 == ~cond); {23462#true} is VALID [2020-07-08 17:38:54,805 INFO L280 TraceCheckUtils]: 130: Hoare triple {23462#true} assume true; {23462#true} is VALID [2020-07-08 17:38:54,806 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {23462#true} {23536#(<= 3 main_~j~0)} #143#return; {23536#(<= 3 main_~j~0)} is VALID [2020-07-08 17:38:54,807 INFO L263 TraceCheckUtils]: 132: Hoare triple {23536#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {23541#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:38:54,808 INFO L280 TraceCheckUtils]: 133: Hoare triple {23541#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {23542#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:38:54,809 INFO L280 TraceCheckUtils]: 134: Hoare triple {23542#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {23463#false} is VALID [2020-07-08 17:38:54,809 INFO L280 TraceCheckUtils]: 135: Hoare triple {23463#false} assume !false; {23463#false} is VALID [2020-07-08 17:38:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-08 17:38:54,824 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:38:54,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432651087] [2020-07-08 17:38:54,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:38:54,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 17:38:54,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231709663] [2020-07-08 17:38:54,827 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-08 17:38:54,827 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:38:54,827 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 17:38:54,937 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 88 edges. 88 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:54,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 17:38:54,937 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:38:54,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 17:38:54,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 17:38:54,938 INFO L87 Difference]: Start difference. First operand 398 states and 529 transitions. Second operand 11 states. [2020-07-08 17:38:58,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:38:58,377 INFO L93 Difference]: Finished difference Result 432 states and 566 transitions. [2020-07-08 17:38:58,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-08 17:38:58,377 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-07-08 17:38:58,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:38:58,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:38:58,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-08 17:38:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:38:58,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 189 transitions. [2020-07-08 17:38:58,390 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states and 189 transitions. [2020-07-08 17:38:58,738 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:38:58,766 INFO L225 Difference]: With dead ends: 432 [2020-07-08 17:38:58,766 INFO L226 Difference]: Without dead ends: 430 [2020-07-08 17:38:58,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-07-08 17:38:58,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-07-08 17:39:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 410. [2020-07-08 17:39:00,404 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:39:00,404 INFO L82 GeneralOperation]: Start isEquivalent. First operand 430 states. Second operand 410 states. [2020-07-08 17:39:00,404 INFO L74 IsIncluded]: Start isIncluded. First operand 430 states. Second operand 410 states. [2020-07-08 17:39:00,405 INFO L87 Difference]: Start difference. First operand 430 states. Second operand 410 states. [2020-07-08 17:39:00,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:00,434 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-08 17:39:00,434 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-08 17:39:00,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:00,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:00,437 INFO L74 IsIncluded]: Start isIncluded. First operand 410 states. Second operand 430 states. [2020-07-08 17:39:00,437 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 430 states. [2020-07-08 17:39:00,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:00,467 INFO L93 Difference]: Finished difference Result 430 states and 564 transitions. [2020-07-08 17:39:00,467 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 564 transitions. [2020-07-08 17:39:00,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:00,469 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:00,470 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:39:00,470 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:39:00,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2020-07-08 17:39:00,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 542 transitions. [2020-07-08 17:39:00,497 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 542 transitions. Word has length 136 [2020-07-08 17:39:00,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:39:00,497 INFO L479 AbstractCegarLoop]: Abstraction has 410 states and 542 transitions. [2020-07-08 17:39:00,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 17:39:00,497 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 410 states and 542 transitions. [2020-07-08 17:39:01,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 542 edges. 542 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 542 transitions. [2020-07-08 17:39:01,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-08 17:39:01,815 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:39:01,815 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:39:01,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-08 17:39:01,816 INFO L427 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:39:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:39:01,816 INFO L82 PathProgramCache]: Analyzing trace with hash 362381850, now seen corresponding path program 1 times [2020-07-08 17:39:01,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:39:01,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [735954525] [2020-07-08 17:39:01,817 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:39:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,000 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,000 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-08 17:39:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,009 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,010 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,010 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,011 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,014 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,015 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,015 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,015 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,019 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,020 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,020 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,020 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,028 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,029 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,029 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,031 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,034 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,034 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,035 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,035 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,039 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,040 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,040 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,041 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,044 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,045 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,045 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,046 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,049 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,050 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,050 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,051 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,054 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,055 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,055 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,056 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,059 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,060 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,060 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,061 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,065 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,065 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,065 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,066 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,078 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,078 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,079 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,080 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,085 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,086 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,086 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,087 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,092 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,092 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,092 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,093 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,098 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,099 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,099 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,100 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,104 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,105 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,105 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,106 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,110 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,110 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,111 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,111 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,115 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,116 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,116 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,117 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:02,125 INFO L280 TraceCheckUtils]: 0: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,125 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,125 INFO L280 TraceCheckUtils]: 2: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,127 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,127 INFO L263 TraceCheckUtils]: 0: Hoare triple {26103#true} call ULTIMATE.init(); {26103#true} is VALID [2020-07-08 17:39:02,127 INFO L280 TraceCheckUtils]: 1: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,128 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26103#true} {26103#true} #119#return; {26103#true} is VALID [2020-07-08 17:39:02,128 INFO L263 TraceCheckUtils]: 3: Hoare triple {26103#true} call #t~ret10 := main(); {26103#true} is VALID [2020-07-08 17:39:02,128 INFO L280 TraceCheckUtils]: 4: Hoare triple {26103#true} havoc ~len~0; {26103#true} is VALID [2020-07-08 17:39:02,129 INFO L280 TraceCheckUtils]: 5: Hoare triple {26103#true} havoc ~i~0; {26103#true} is VALID [2020-07-08 17:39:02,129 INFO L280 TraceCheckUtils]: 6: Hoare triple {26103#true} havoc ~j~0; {26103#true} is VALID [2020-07-08 17:39:02,129 INFO L280 TraceCheckUtils]: 7: Hoare triple {26103#true} havoc ~bufsize~0; {26103#true} is VALID [2020-07-08 17:39:02,130 INFO L280 TraceCheckUtils]: 8: Hoare triple {26103#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {26103#true} is VALID [2020-07-08 17:39:02,130 INFO L280 TraceCheckUtils]: 9: Hoare triple {26103#true} ~bufsize~0 := #t~nondet0; {26103#true} is VALID [2020-07-08 17:39:02,130 INFO L280 TraceCheckUtils]: 10: Hoare triple {26103#true} havoc #t~nondet0; {26103#true} is VALID [2020-07-08 17:39:02,130 INFO L280 TraceCheckUtils]: 11: Hoare triple {26103#true} assume !(~bufsize~0 < 0); {26103#true} is VALID [2020-07-08 17:39:02,131 INFO L280 TraceCheckUtils]: 12: Hoare triple {26103#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {26103#true} is VALID [2020-07-08 17:39:02,131 INFO L280 TraceCheckUtils]: 13: Hoare triple {26103#true} ~len~0 := #t~nondet1; {26103#true} is VALID [2020-07-08 17:39:02,132 INFO L280 TraceCheckUtils]: 14: Hoare triple {26103#true} havoc #t~nondet1; {26103#true} is VALID [2020-07-08 17:39:02,132 INFO L280 TraceCheckUtils]: 15: Hoare triple {26103#true} ~limit~0 := ~bufsize~0 - 4; {26103#true} is VALID [2020-07-08 17:39:02,133 INFO L280 TraceCheckUtils]: 16: Hoare triple {26103#true} ~i~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,134 INFO L280 TraceCheckUtils]: 17: Hoare triple {26107#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,135 INFO L280 TraceCheckUtils]: 18: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,136 INFO L280 TraceCheckUtils]: 19: Hoare triple {26107#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,136 INFO L280 TraceCheckUtils]: 20: Hoare triple {26107#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,137 INFO L263 TraceCheckUtils]: 21: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,137 INFO L280 TraceCheckUtils]: 22: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,137 INFO L280 TraceCheckUtils]: 23: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,138 INFO L280 TraceCheckUtils]: 24: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,139 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #123#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,139 INFO L263 TraceCheckUtils]: 26: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,139 INFO L280 TraceCheckUtils]: 27: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,140 INFO L280 TraceCheckUtils]: 28: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,140 INFO L280 TraceCheckUtils]: 29: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,141 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #125#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,142 INFO L280 TraceCheckUtils]: 31: Hoare triple {26107#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,143 INFO L280 TraceCheckUtils]: 32: Hoare triple {26107#(<= 0 main_~i~0)} assume 0 != #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,144 INFO L280 TraceCheckUtils]: 33: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~nondet2; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,144 INFO L263 TraceCheckUtils]: 34: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,144 INFO L280 TraceCheckUtils]: 35: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,144 INFO L280 TraceCheckUtils]: 36: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,145 INFO L280 TraceCheckUtils]: 37: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,145 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #147#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,146 INFO L263 TraceCheckUtils]: 39: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,146 INFO L280 TraceCheckUtils]: 40: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,146 INFO L280 TraceCheckUtils]: 41: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,146 INFO L280 TraceCheckUtils]: 42: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,147 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #149#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,147 INFO L263 TraceCheckUtils]: 44: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,148 INFO L280 TraceCheckUtils]: 45: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,148 INFO L280 TraceCheckUtils]: 46: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,148 INFO L280 TraceCheckUtils]: 47: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,149 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #151#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,149 INFO L263 TraceCheckUtils]: 49: Hoare triple {26107#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,149 INFO L280 TraceCheckUtils]: 50: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,150 INFO L280 TraceCheckUtils]: 51: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,150 INFO L280 TraceCheckUtils]: 52: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,151 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {26103#true} {26107#(<= 0 main_~i~0)} #153#return; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,151 INFO L280 TraceCheckUtils]: 54: Hoare triple {26107#(<= 0 main_~i~0)} #t~post8 := ~j~0; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,152 INFO L280 TraceCheckUtils]: 55: Hoare triple {26107#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,152 INFO L280 TraceCheckUtils]: 56: Hoare triple {26107#(<= 0 main_~i~0)} havoc #t~post8; {26107#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:02,153 INFO L280 TraceCheckUtils]: 57: Hoare triple {26107#(<= 0 main_~i~0)} #t~post9 := ~i~0; {26132#(<= 0 |main_#t~post9|)} is VALID [2020-07-08 17:39:02,154 INFO L280 TraceCheckUtils]: 58: Hoare triple {26132#(<= 0 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,155 INFO L280 TraceCheckUtils]: 59: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post9; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,155 INFO L280 TraceCheckUtils]: 60: Hoare triple {26133#(<= 1 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,156 INFO L280 TraceCheckUtils]: 61: Hoare triple {26133#(<= 1 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,156 INFO L263 TraceCheckUtils]: 62: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,156 INFO L280 TraceCheckUtils]: 63: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,156 INFO L280 TraceCheckUtils]: 64: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,157 INFO L280 TraceCheckUtils]: 65: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,158 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #123#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,158 INFO L263 TraceCheckUtils]: 67: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,158 INFO L280 TraceCheckUtils]: 68: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,158 INFO L280 TraceCheckUtils]: 69: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,158 INFO L280 TraceCheckUtils]: 70: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,159 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #125#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,160 INFO L280 TraceCheckUtils]: 72: Hoare triple {26133#(<= 1 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,161 INFO L280 TraceCheckUtils]: 73: Hoare triple {26133#(<= 1 main_~i~0)} assume !(0 != #t~nondet2); {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,162 INFO L280 TraceCheckUtils]: 74: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~nondet2; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,162 INFO L263 TraceCheckUtils]: 75: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,163 INFO L280 TraceCheckUtils]: 76: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,163 INFO L280 TraceCheckUtils]: 77: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,163 INFO L280 TraceCheckUtils]: 78: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,165 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #127#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,165 INFO L263 TraceCheckUtils]: 80: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,165 INFO L280 TraceCheckUtils]: 81: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,166 INFO L280 TraceCheckUtils]: 82: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,166 INFO L280 TraceCheckUtils]: 83: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,167 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #129#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,167 INFO L263 TraceCheckUtils]: 85: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,168 INFO L280 TraceCheckUtils]: 86: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,168 INFO L280 TraceCheckUtils]: 87: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,168 INFO L280 TraceCheckUtils]: 88: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,170 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #131#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,170 INFO L263 TraceCheckUtils]: 90: Hoare triple {26133#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,170 INFO L280 TraceCheckUtils]: 91: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,171 INFO L280 TraceCheckUtils]: 92: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,171 INFO L280 TraceCheckUtils]: 93: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,172 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {26103#true} {26133#(<= 1 main_~i~0)} #133#return; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,173 INFO L280 TraceCheckUtils]: 95: Hoare triple {26133#(<= 1 main_~i~0)} #t~post3 := ~j~0; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,174 INFO L280 TraceCheckUtils]: 96: Hoare triple {26133#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,175 INFO L280 TraceCheckUtils]: 97: Hoare triple {26133#(<= 1 main_~i~0)} havoc #t~post3; {26133#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:02,175 INFO L280 TraceCheckUtils]: 98: Hoare triple {26133#(<= 1 main_~i~0)} #t~post4 := ~i~0; {26158#(<= 1 |main_#t~post4|)} is VALID [2020-07-08 17:39:02,177 INFO L280 TraceCheckUtils]: 99: Hoare triple {26158#(<= 1 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,178 INFO L280 TraceCheckUtils]: 100: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post4; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,178 INFO L263 TraceCheckUtils]: 101: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,179 INFO L280 TraceCheckUtils]: 102: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,179 INFO L280 TraceCheckUtils]: 103: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,179 INFO L280 TraceCheckUtils]: 104: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,180 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #135#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,180 INFO L263 TraceCheckUtils]: 106: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,181 INFO L280 TraceCheckUtils]: 107: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,181 INFO L280 TraceCheckUtils]: 108: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,181 INFO L280 TraceCheckUtils]: 109: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,182 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #137#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,182 INFO L263 TraceCheckUtils]: 111: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,182 INFO L280 TraceCheckUtils]: 112: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,182 INFO L280 TraceCheckUtils]: 113: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,183 INFO L280 TraceCheckUtils]: 114: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,184 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #139#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,184 INFO L263 TraceCheckUtils]: 116: Hoare triple {26159#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,184 INFO L280 TraceCheckUtils]: 117: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,185 INFO L280 TraceCheckUtils]: 118: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,185 INFO L280 TraceCheckUtils]: 119: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,187 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {26103#true} {26159#(<= 2 main_~i~0)} #141#return; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,189 INFO L280 TraceCheckUtils]: 121: Hoare triple {26159#(<= 2 main_~i~0)} #t~post5 := ~j~0; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,189 INFO L280 TraceCheckUtils]: 122: Hoare triple {26159#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,190 INFO L280 TraceCheckUtils]: 123: Hoare triple {26159#(<= 2 main_~i~0)} havoc #t~post5; {26159#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:02,191 INFO L280 TraceCheckUtils]: 124: Hoare triple {26159#(<= 2 main_~i~0)} #t~post6 := ~i~0; {26176#(<= 2 |main_#t~post6|)} is VALID [2020-07-08 17:39:02,192 INFO L280 TraceCheckUtils]: 125: Hoare triple {26176#(<= 2 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,192 INFO L280 TraceCheckUtils]: 126: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post6; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,193 INFO L263 TraceCheckUtils]: 127: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,193 INFO L280 TraceCheckUtils]: 128: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,193 INFO L280 TraceCheckUtils]: 129: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,193 INFO L280 TraceCheckUtils]: 130: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,194 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #143#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,195 INFO L263 TraceCheckUtils]: 132: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,195 INFO L280 TraceCheckUtils]: 133: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,195 INFO L280 TraceCheckUtils]: 134: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,195 INFO L280 TraceCheckUtils]: 135: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,196 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #145#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,197 INFO L280 TraceCheckUtils]: 137: Hoare triple {26177#(<= 3 main_~i~0)} #t~post7 := ~j~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,197 INFO L280 TraceCheckUtils]: 138: Hoare triple {26177#(<= 3 main_~i~0)} ~j~0 := 1 + #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,198 INFO L280 TraceCheckUtils]: 139: Hoare triple {26177#(<= 3 main_~i~0)} havoc #t~post7; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,198 INFO L280 TraceCheckUtils]: 140: Hoare triple {26177#(<= 3 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,199 INFO L280 TraceCheckUtils]: 141: Hoare triple {26177#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,199 INFO L263 TraceCheckUtils]: 142: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {26103#true} is VALID [2020-07-08 17:39:02,199 INFO L280 TraceCheckUtils]: 143: Hoare triple {26103#true} ~cond := #in~cond; {26103#true} is VALID [2020-07-08 17:39:02,199 INFO L280 TraceCheckUtils]: 144: Hoare triple {26103#true} assume !(0 == ~cond); {26103#true} is VALID [2020-07-08 17:39:02,200 INFO L280 TraceCheckUtils]: 145: Hoare triple {26103#true} assume true; {26103#true} is VALID [2020-07-08 17:39:02,200 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {26103#true} {26177#(<= 3 main_~i~0)} #123#return; {26177#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:02,202 INFO L263 TraceCheckUtils]: 147: Hoare triple {26177#(<= 3 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {26190#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:39:02,202 INFO L280 TraceCheckUtils]: 148: Hoare triple {26190#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {26191#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:39:02,203 INFO L280 TraceCheckUtils]: 149: Hoare triple {26191#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {26104#false} is VALID [2020-07-08 17:39:02,203 INFO L280 TraceCheckUtils]: 150: Hoare triple {26104#false} assume !false; {26104#false} is VALID [2020-07-08 17:39:02,227 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-08 17:39:02,228 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:39:02,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [735954525] [2020-07-08 17:39:02,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:39:02,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 17:39:02,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832345717] [2020-07-08 17:39:02,230 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 17:39:02,231 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:39:02,231 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 17:39:02,383 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:02,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 17:39:02,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:39:02,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 17:39:02,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 17:39:02,384 INFO L87 Difference]: Start difference. First operand 410 states and 542 transitions. Second operand 11 states. [2020-07-08 17:39:06,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:06,146 INFO L93 Difference]: Finished difference Result 645 states and 888 transitions. [2020-07-08 17:39:06,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-08 17:39:06,146 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 17:39:06,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:39:06,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:39:06,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 17:39:06,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:39:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 17:39:06,152 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-08 17:39:06,476 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:06,501 INFO L225 Difference]: With dead ends: 645 [2020-07-08 17:39:06,501 INFO L226 Difference]: Without dead ends: 639 [2020-07-08 17:39:06,502 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2020-07-08 17:39:06,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-07-08 17:39:08,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 572. [2020-07-08 17:39:08,101 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:39:08,101 INFO L82 GeneralOperation]: Start isEquivalent. First operand 639 states. Second operand 572 states. [2020-07-08 17:39:08,101 INFO L74 IsIncluded]: Start isIncluded. First operand 639 states. Second operand 572 states. [2020-07-08 17:39:08,101 INFO L87 Difference]: Start difference. First operand 639 states. Second operand 572 states. [2020-07-08 17:39:08,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:08,129 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-08 17:39:08,130 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-08 17:39:08,131 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:08,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:08,132 INFO L74 IsIncluded]: Start isIncluded. First operand 572 states. Second operand 639 states. [2020-07-08 17:39:08,132 INFO L87 Difference]: Start difference. First operand 572 states. Second operand 639 states. [2020-07-08 17:39:08,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:08,171 INFO L93 Difference]: Finished difference Result 639 states and 876 transitions. [2020-07-08 17:39:08,171 INFO L276 IsEmpty]: Start isEmpty. Operand 639 states and 876 transitions. [2020-07-08 17:39:08,173 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:08,173 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:08,173 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:39:08,173 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:39:08,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2020-07-08 17:39:08,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 778 transitions. [2020-07-08 17:39:08,191 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 778 transitions. Word has length 151 [2020-07-08 17:39:08,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:39:08,191 INFO L479 AbstractCegarLoop]: Abstraction has 572 states and 778 transitions. [2020-07-08 17:39:08,191 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 17:39:08,191 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 572 states and 778 transitions. [2020-07-08 17:39:09,696 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 778 edges. 778 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:09,696 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 778 transitions. [2020-07-08 17:39:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-08 17:39:09,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:39:09,699 INFO L422 BasicCegarLoop]: trace histogram [20, 19, 19, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:39:09,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-08 17:39:09,699 INFO L427 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:39:09,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:39:09,699 INFO L82 PathProgramCache]: Analyzing trace with hash -978309232, now seen corresponding path program 2 times [2020-07-08 17:39:09,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:39:09,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1355337014] [2020-07-08 17:39:09,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:39:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,878 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,879 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-08 17:39:09,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,882 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,882 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,883 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,883 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,886 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,887 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,887 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,887 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,891 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,891 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,891 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,892 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,896 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,896 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,897 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,897 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,900 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,901 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,901 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,902 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,905 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,905 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,906 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,907 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,910 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,910 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,910 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,911 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:09,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,922 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,922 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,923 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,923 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,927 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,928 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,928 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,929 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,932 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,933 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,933 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,933 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,937 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,937 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,938 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,938 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,941 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,942 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,942 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,943 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,946 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,946 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,946 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,947 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,950 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,951 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,951 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,952 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,956 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,956 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,956 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,957 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,960 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,960 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,960 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,961 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,964 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,965 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,965 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,966 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,969 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,970 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,970 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,970 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:09,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:09,975 INFO L280 TraceCheckUtils]: 0: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,976 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,976 INFO L280 TraceCheckUtils]: 2: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,977 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:09,977 INFO L263 TraceCheckUtils]: 0: Hoare triple {29924#true} call ULTIMATE.init(); {29924#true} is VALID [2020-07-08 17:39:09,977 INFO L280 TraceCheckUtils]: 1: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,977 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {29924#true} {29924#true} #119#return; {29924#true} is VALID [2020-07-08 17:39:09,977 INFO L263 TraceCheckUtils]: 3: Hoare triple {29924#true} call #t~ret10 := main(); {29924#true} is VALID [2020-07-08 17:39:09,978 INFO L280 TraceCheckUtils]: 4: Hoare triple {29924#true} havoc ~len~0; {29924#true} is VALID [2020-07-08 17:39:09,978 INFO L280 TraceCheckUtils]: 5: Hoare triple {29924#true} havoc ~i~0; {29924#true} is VALID [2020-07-08 17:39:09,978 INFO L280 TraceCheckUtils]: 6: Hoare triple {29924#true} havoc ~j~0; {29924#true} is VALID [2020-07-08 17:39:09,978 INFO L280 TraceCheckUtils]: 7: Hoare triple {29924#true} havoc ~bufsize~0; {29924#true} is VALID [2020-07-08 17:39:09,978 INFO L280 TraceCheckUtils]: 8: Hoare triple {29924#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {29924#true} is VALID [2020-07-08 17:39:09,978 INFO L280 TraceCheckUtils]: 9: Hoare triple {29924#true} ~bufsize~0 := #t~nondet0; {29924#true} is VALID [2020-07-08 17:39:09,979 INFO L280 TraceCheckUtils]: 10: Hoare triple {29924#true} havoc #t~nondet0; {29924#true} is VALID [2020-07-08 17:39:09,979 INFO L280 TraceCheckUtils]: 11: Hoare triple {29924#true} assume !(~bufsize~0 < 0); {29924#true} is VALID [2020-07-08 17:39:09,979 INFO L280 TraceCheckUtils]: 12: Hoare triple {29924#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {29924#true} is VALID [2020-07-08 17:39:09,979 INFO L280 TraceCheckUtils]: 13: Hoare triple {29924#true} ~len~0 := #t~nondet1; {29924#true} is VALID [2020-07-08 17:39:09,979 INFO L280 TraceCheckUtils]: 14: Hoare triple {29924#true} havoc #t~nondet1; {29924#true} is VALID [2020-07-08 17:39:09,979 INFO L280 TraceCheckUtils]: 15: Hoare triple {29924#true} ~limit~0 := ~bufsize~0 - 4; {29924#true} is VALID [2020-07-08 17:39:09,980 INFO L280 TraceCheckUtils]: 16: Hoare triple {29924#true} ~i~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,981 INFO L280 TraceCheckUtils]: 17: Hoare triple {29928#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0); {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,981 INFO L280 TraceCheckUtils]: 18: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,982 INFO L280 TraceCheckUtils]: 19: Hoare triple {29928#(<= 0 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,982 INFO L280 TraceCheckUtils]: 20: Hoare triple {29928#(<= 0 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,983 INFO L263 TraceCheckUtils]: 21: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,983 INFO L280 TraceCheckUtils]: 22: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,983 INFO L280 TraceCheckUtils]: 23: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,983 INFO L280 TraceCheckUtils]: 24: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,984 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #123#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,984 INFO L263 TraceCheckUtils]: 26: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,984 INFO L280 TraceCheckUtils]: 27: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,984 INFO L280 TraceCheckUtils]: 28: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,984 INFO L280 TraceCheckUtils]: 29: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,985 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #125#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,986 INFO L280 TraceCheckUtils]: 31: Hoare triple {29928#(<= 0 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,986 INFO L280 TraceCheckUtils]: 32: Hoare triple {29928#(<= 0 main_~i~0)} assume !(0 != #t~nondet2); {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,987 INFO L280 TraceCheckUtils]: 33: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~nondet2; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,987 INFO L263 TraceCheckUtils]: 34: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,987 INFO L280 TraceCheckUtils]: 35: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,987 INFO L280 TraceCheckUtils]: 36: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,988 INFO L280 TraceCheckUtils]: 37: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,988 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #127#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,989 INFO L263 TraceCheckUtils]: 39: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,989 INFO L280 TraceCheckUtils]: 40: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,989 INFO L280 TraceCheckUtils]: 41: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,989 INFO L280 TraceCheckUtils]: 42: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,990 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #129#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,990 INFO L263 TraceCheckUtils]: 44: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,990 INFO L280 TraceCheckUtils]: 45: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,990 INFO L280 TraceCheckUtils]: 46: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,991 INFO L280 TraceCheckUtils]: 47: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,991 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #131#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,992 INFO L263 TraceCheckUtils]: 49: Hoare triple {29928#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,992 INFO L280 TraceCheckUtils]: 50: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,992 INFO L280 TraceCheckUtils]: 51: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,992 INFO L280 TraceCheckUtils]: 52: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,993 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {29924#true} {29928#(<= 0 main_~i~0)} #133#return; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,994 INFO L280 TraceCheckUtils]: 54: Hoare triple {29928#(<= 0 main_~i~0)} #t~post3 := ~j~0; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,994 INFO L280 TraceCheckUtils]: 55: Hoare triple {29928#(<= 0 main_~i~0)} ~j~0 := 1 + #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,995 INFO L280 TraceCheckUtils]: 56: Hoare triple {29928#(<= 0 main_~i~0)} havoc #t~post3; {29928#(<= 0 main_~i~0)} is VALID [2020-07-08 17:39:09,995 INFO L280 TraceCheckUtils]: 57: Hoare triple {29928#(<= 0 main_~i~0)} #t~post4 := ~i~0; {29953#(<= 0 |main_#t~post4|)} is VALID [2020-07-08 17:39:09,996 INFO L280 TraceCheckUtils]: 58: Hoare triple {29953#(<= 0 |main_#t~post4|)} ~i~0 := 1 + #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:09,997 INFO L280 TraceCheckUtils]: 59: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post4; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:09,997 INFO L263 TraceCheckUtils]: 60: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,997 INFO L280 TraceCheckUtils]: 61: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,997 INFO L280 TraceCheckUtils]: 62: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,997 INFO L280 TraceCheckUtils]: 63: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:09,998 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #135#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:09,998 INFO L263 TraceCheckUtils]: 65: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:09,999 INFO L280 TraceCheckUtils]: 66: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:09,999 INFO L280 TraceCheckUtils]: 67: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:09,999 INFO L280 TraceCheckUtils]: 68: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,000 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #137#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:10,000 INFO L263 TraceCheckUtils]: 70: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,000 INFO L280 TraceCheckUtils]: 71: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,000 INFO L280 TraceCheckUtils]: 72: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,000 INFO L280 TraceCheckUtils]: 73: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,001 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #139#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:10,001 INFO L263 TraceCheckUtils]: 75: Hoare triple {29954#(<= 1 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,001 INFO L280 TraceCheckUtils]: 76: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,002 INFO L280 TraceCheckUtils]: 77: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,002 INFO L280 TraceCheckUtils]: 78: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,003 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {29924#true} {29954#(<= 1 main_~i~0)} #141#return; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:10,003 INFO L280 TraceCheckUtils]: 80: Hoare triple {29954#(<= 1 main_~i~0)} #t~post5 := ~j~0; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:10,004 INFO L280 TraceCheckUtils]: 81: Hoare triple {29954#(<= 1 main_~i~0)} ~j~0 := 1 + #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:10,004 INFO L280 TraceCheckUtils]: 82: Hoare triple {29954#(<= 1 main_~i~0)} havoc #t~post5; {29954#(<= 1 main_~i~0)} is VALID [2020-07-08 17:39:10,005 INFO L280 TraceCheckUtils]: 83: Hoare triple {29954#(<= 1 main_~i~0)} #t~post6 := ~i~0; {29971#(<= 1 |main_#t~post6|)} is VALID [2020-07-08 17:39:10,006 INFO L280 TraceCheckUtils]: 84: Hoare triple {29971#(<= 1 |main_#t~post6|)} ~i~0 := 1 + #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,006 INFO L280 TraceCheckUtils]: 85: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post6; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,006 INFO L263 TraceCheckUtils]: 86: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,006 INFO L280 TraceCheckUtils]: 87: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,007 INFO L280 TraceCheckUtils]: 88: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,007 INFO L280 TraceCheckUtils]: 89: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,008 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #143#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,008 INFO L263 TraceCheckUtils]: 91: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,008 INFO L280 TraceCheckUtils]: 92: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,008 INFO L280 TraceCheckUtils]: 93: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,008 INFO L280 TraceCheckUtils]: 94: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,009 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #145#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,010 INFO L280 TraceCheckUtils]: 96: Hoare triple {29972#(<= 2 main_~i~0)} #t~post7 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,010 INFO L280 TraceCheckUtils]: 97: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,011 INFO L280 TraceCheckUtils]: 98: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post7; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,011 INFO L280 TraceCheckUtils]: 99: Hoare triple {29972#(<= 2 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,012 INFO L280 TraceCheckUtils]: 100: Hoare triple {29972#(<= 2 main_~i~0)} assume 1 + ~i~0 < ~len~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,012 INFO L263 TraceCheckUtils]: 101: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,012 INFO L280 TraceCheckUtils]: 102: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,012 INFO L280 TraceCheckUtils]: 103: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,013 INFO L280 TraceCheckUtils]: 104: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,013 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #123#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,013 INFO L263 TraceCheckUtils]: 106: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,014 INFO L280 TraceCheckUtils]: 107: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,014 INFO L280 TraceCheckUtils]: 108: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,014 INFO L280 TraceCheckUtils]: 109: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,015 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #125#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,015 INFO L280 TraceCheckUtils]: 111: Hoare triple {29972#(<= 2 main_~i~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,016 INFO L280 TraceCheckUtils]: 112: Hoare triple {29972#(<= 2 main_~i~0)} assume 0 != #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,016 INFO L280 TraceCheckUtils]: 113: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~nondet2; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,016 INFO L263 TraceCheckUtils]: 114: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,017 INFO L280 TraceCheckUtils]: 115: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,017 INFO L280 TraceCheckUtils]: 116: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,017 INFO L280 TraceCheckUtils]: 117: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,018 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #147#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,018 INFO L263 TraceCheckUtils]: 119: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,018 INFO L280 TraceCheckUtils]: 120: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,018 INFO L280 TraceCheckUtils]: 121: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,018 INFO L280 TraceCheckUtils]: 122: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,019 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #149#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,019 INFO L263 TraceCheckUtils]: 124: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,019 INFO L280 TraceCheckUtils]: 125: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,020 INFO L280 TraceCheckUtils]: 126: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,020 INFO L280 TraceCheckUtils]: 127: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,021 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #151#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,021 INFO L263 TraceCheckUtils]: 129: Hoare triple {29972#(<= 2 main_~i~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,021 INFO L280 TraceCheckUtils]: 130: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,021 INFO L280 TraceCheckUtils]: 131: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,021 INFO L280 TraceCheckUtils]: 132: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,022 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {29924#true} {29972#(<= 2 main_~i~0)} #153#return; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,022 INFO L280 TraceCheckUtils]: 134: Hoare triple {29972#(<= 2 main_~i~0)} #t~post8 := ~j~0; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,022 INFO L280 TraceCheckUtils]: 135: Hoare triple {29972#(<= 2 main_~i~0)} ~j~0 := 1 + #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,023 INFO L280 TraceCheckUtils]: 136: Hoare triple {29972#(<= 2 main_~i~0)} havoc #t~post8; {29972#(<= 2 main_~i~0)} is VALID [2020-07-08 17:39:10,023 INFO L280 TraceCheckUtils]: 137: Hoare triple {29972#(<= 2 main_~i~0)} #t~post9 := ~i~0; {30005#(<= 2 |main_#t~post9|)} is VALID [2020-07-08 17:39:10,024 INFO L280 TraceCheckUtils]: 138: Hoare triple {30005#(<= 2 |main_#t~post9|)} ~i~0 := 1 + #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:10,024 INFO L280 TraceCheckUtils]: 139: Hoare triple {30006#(<= 3 main_~i~0)} havoc #t~post9; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:10,025 INFO L280 TraceCheckUtils]: 140: Hoare triple {30006#(<= 3 main_~i~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:10,025 INFO L280 TraceCheckUtils]: 141: Hoare triple {30006#(<= 3 main_~i~0)} assume 1 + ~i~0 < ~len~0; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:10,025 INFO L263 TraceCheckUtils]: 142: Hoare triple {30006#(<= 3 main_~i~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {29924#true} is VALID [2020-07-08 17:39:10,026 INFO L280 TraceCheckUtils]: 143: Hoare triple {29924#true} ~cond := #in~cond; {29924#true} is VALID [2020-07-08 17:39:10,026 INFO L280 TraceCheckUtils]: 144: Hoare triple {29924#true} assume !(0 == ~cond); {29924#true} is VALID [2020-07-08 17:39:10,026 INFO L280 TraceCheckUtils]: 145: Hoare triple {29924#true} assume true; {29924#true} is VALID [2020-07-08 17:39:10,027 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {29924#true} {30006#(<= 3 main_~i~0)} #123#return; {30006#(<= 3 main_~i~0)} is VALID [2020-07-08 17:39:10,028 INFO L263 TraceCheckUtils]: 147: Hoare triple {30006#(<= 3 main_~i~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {30011#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:39:10,028 INFO L280 TraceCheckUtils]: 148: Hoare triple {30011#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {30012#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:39:10,029 INFO L280 TraceCheckUtils]: 149: Hoare triple {30012#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {29925#false} is VALID [2020-07-08 17:39:10,029 INFO L280 TraceCheckUtils]: 150: Hoare triple {29925#false} assume !false; {29925#false} is VALID [2020-07-08 17:39:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-08 17:39:10,041 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:39:10,041 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1355337014] [2020-07-08 17:39:10,042 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:39:10,042 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-08 17:39:10,042 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856280002] [2020-07-08 17:39:10,042 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 17:39:10,042 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:39:10,042 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-08 17:39:10,161 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 97 edges. 97 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:10,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-08 17:39:10,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:39:10,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-08 17:39:10,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-07-08 17:39:10,163 INFO L87 Difference]: Start difference. First operand 572 states and 778 transitions. Second operand 11 states. [2020-07-08 17:39:13,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:13,869 INFO L93 Difference]: Finished difference Result 647 states and 885 transitions. [2020-07-08 17:39:13,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-08 17:39:13,869 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 151 [2020-07-08 17:39:13,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:39:13,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:39:13,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 17:39:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-08 17:39:13,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 236 transitions. [2020-07-08 17:39:13,873 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 236 transitions. [2020-07-08 17:39:14,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 236 edges. 236 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:14,202 INFO L225 Difference]: With dead ends: 647 [2020-07-08 17:39:14,202 INFO L226 Difference]: Without dead ends: 641 [2020-07-08 17:39:14,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2020-07-08 17:39:14,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2020-07-08 17:39:15,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 412. [2020-07-08 17:39:15,359 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:39:15,359 INFO L82 GeneralOperation]: Start isEquivalent. First operand 641 states. Second operand 412 states. [2020-07-08 17:39:15,359 INFO L74 IsIncluded]: Start isIncluded. First operand 641 states. Second operand 412 states. [2020-07-08 17:39:15,359 INFO L87 Difference]: Start difference. First operand 641 states. Second operand 412 states. [2020-07-08 17:39:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:15,392 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-08 17:39:15,392 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-08 17:39:15,394 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:15,395 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:15,395 INFO L74 IsIncluded]: Start isIncluded. First operand 412 states. Second operand 641 states. [2020-07-08 17:39:15,395 INFO L87 Difference]: Start difference. First operand 412 states. Second operand 641 states. [2020-07-08 17:39:15,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:15,428 INFO L93 Difference]: Finished difference Result 641 states and 873 transitions. [2020-07-08 17:39:15,428 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 873 transitions. [2020-07-08 17:39:15,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:15,430 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:15,431 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:39:15,431 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:39:15,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-07-08 17:39:15,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 539 transitions. [2020-07-08 17:39:15,446 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 539 transitions. Word has length 151 [2020-07-08 17:39:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:39:15,447 INFO L479 AbstractCegarLoop]: Abstraction has 412 states and 539 transitions. [2020-07-08 17:39:15,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-08 17:39:15,447 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 412 states and 539 transitions. [2020-07-08 17:39:16,578 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 539 edges. 539 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:16,578 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 539 transitions. [2020-07-08 17:39:16,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-08 17:39:16,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:39:16,582 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:39:16,582 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-08 17:39:16,582 INFO L427 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:39:16,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:39:16,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1688386477, now seen corresponding path program 1 times [2020-07-08 17:39:16,583 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:39:16,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471475615] [2020-07-08 17:39:16,583 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:39:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,833 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,833 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-08 17:39:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,842 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,842 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,842 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,844 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,848 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,849 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,849 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,850 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,853 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,854 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,854 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,855 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,859 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,859 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,859 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,860 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,864 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,864 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,864 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,865 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,869 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,869 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,870 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,870 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,874 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,875 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,875 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,876 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,879 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,880 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,880 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,881 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,885 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,885 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,885 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,886 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,890 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,891 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,891 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,892 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,895 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,896 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,896 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,897 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,901 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,901 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,902 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,903 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,907 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,907 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,907 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,908 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,912 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,912 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,913 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,913 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,917 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,917 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,917 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,918 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,924 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,924 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,924 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,925 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,929 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,929 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,932 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,934 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,937 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,938 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,938 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,939 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,942 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,943 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,943 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,944 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,948 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,949 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,949 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,950 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:16,953 INFO L280 TraceCheckUtils]: 0: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,954 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,954 INFO L280 TraceCheckUtils]: 2: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,955 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:16,955 INFO L263 TraceCheckUtils]: 0: Hoare triple {33433#true} call ULTIMATE.init(); {33433#true} is VALID [2020-07-08 17:39:16,955 INFO L280 TraceCheckUtils]: 1: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,955 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33433#true} {33433#true} #119#return; {33433#true} is VALID [2020-07-08 17:39:16,955 INFO L263 TraceCheckUtils]: 3: Hoare triple {33433#true} call #t~ret10 := main(); {33433#true} is VALID [2020-07-08 17:39:16,956 INFO L280 TraceCheckUtils]: 4: Hoare triple {33433#true} havoc ~len~0; {33433#true} is VALID [2020-07-08 17:39:16,956 INFO L280 TraceCheckUtils]: 5: Hoare triple {33433#true} havoc ~i~0; {33433#true} is VALID [2020-07-08 17:39:16,956 INFO L280 TraceCheckUtils]: 6: Hoare triple {33433#true} havoc ~j~0; {33433#true} is VALID [2020-07-08 17:39:16,956 INFO L280 TraceCheckUtils]: 7: Hoare triple {33433#true} havoc ~bufsize~0; {33433#true} is VALID [2020-07-08 17:39:16,956 INFO L280 TraceCheckUtils]: 8: Hoare triple {33433#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {33433#true} is VALID [2020-07-08 17:39:16,956 INFO L280 TraceCheckUtils]: 9: Hoare triple {33433#true} ~bufsize~0 := #t~nondet0; {33433#true} is VALID [2020-07-08 17:39:16,957 INFO L280 TraceCheckUtils]: 10: Hoare triple {33433#true} havoc #t~nondet0; {33433#true} is VALID [2020-07-08 17:39:16,957 INFO L280 TraceCheckUtils]: 11: Hoare triple {33433#true} assume !(~bufsize~0 < 0); {33433#true} is VALID [2020-07-08 17:39:16,957 INFO L280 TraceCheckUtils]: 12: Hoare triple {33433#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {33433#true} is VALID [2020-07-08 17:39:16,957 INFO L280 TraceCheckUtils]: 13: Hoare triple {33433#true} ~len~0 := #t~nondet1; {33433#true} is VALID [2020-07-08 17:39:16,957 INFO L280 TraceCheckUtils]: 14: Hoare triple {33433#true} havoc #t~nondet1; {33433#true} is VALID [2020-07-08 17:39:16,958 INFO L280 TraceCheckUtils]: 15: Hoare triple {33433#true} ~limit~0 := ~bufsize~0 - 4; {33433#true} is VALID [2020-07-08 17:39:16,958 INFO L280 TraceCheckUtils]: 16: Hoare triple {33433#true} ~i~0 := 0; {33433#true} is VALID [2020-07-08 17:39:16,958 INFO L280 TraceCheckUtils]: 17: Hoare triple {33433#true} assume !!(~i~0 < ~len~0); {33433#true} is VALID [2020-07-08 17:39:16,959 INFO L280 TraceCheckUtils]: 18: Hoare triple {33433#true} ~j~0 := 0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,959 INFO L280 TraceCheckUtils]: 19: Hoare triple {33437#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,960 INFO L280 TraceCheckUtils]: 20: Hoare triple {33437#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,960 INFO L263 TraceCheckUtils]: 21: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,960 INFO L280 TraceCheckUtils]: 22: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,961 INFO L280 TraceCheckUtils]: 23: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,961 INFO L280 TraceCheckUtils]: 24: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,962 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #123#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,962 INFO L263 TraceCheckUtils]: 26: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,962 INFO L280 TraceCheckUtils]: 27: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,962 INFO L280 TraceCheckUtils]: 28: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,963 INFO L280 TraceCheckUtils]: 29: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,964 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #125#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,965 INFO L280 TraceCheckUtils]: 31: Hoare triple {33437#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,966 INFO L280 TraceCheckUtils]: 32: Hoare triple {33437#(<= 0 main_~j~0)} assume 0 != #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,966 INFO L280 TraceCheckUtils]: 33: Hoare triple {33437#(<= 0 main_~j~0)} havoc #t~nondet2; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,966 INFO L263 TraceCheckUtils]: 34: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,967 INFO L280 TraceCheckUtils]: 35: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,967 INFO L280 TraceCheckUtils]: 36: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,967 INFO L280 TraceCheckUtils]: 37: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,968 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #147#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,968 INFO L263 TraceCheckUtils]: 39: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,968 INFO L280 TraceCheckUtils]: 40: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,968 INFO L280 TraceCheckUtils]: 41: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,968 INFO L280 TraceCheckUtils]: 42: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,969 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #149#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,970 INFO L263 TraceCheckUtils]: 44: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,970 INFO L280 TraceCheckUtils]: 45: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,970 INFO L280 TraceCheckUtils]: 46: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,970 INFO L280 TraceCheckUtils]: 47: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,971 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #151#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,971 INFO L263 TraceCheckUtils]: 49: Hoare triple {33437#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,972 INFO L280 TraceCheckUtils]: 50: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,972 INFO L280 TraceCheckUtils]: 51: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,972 INFO L280 TraceCheckUtils]: 52: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,973 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {33433#true} {33437#(<= 0 main_~j~0)} #153#return; {33437#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:16,974 INFO L280 TraceCheckUtils]: 54: Hoare triple {33437#(<= 0 main_~j~0)} #t~post8 := ~j~0; {33462#(<= 0 |main_#t~post8|)} is VALID [2020-07-08 17:39:16,975 INFO L280 TraceCheckUtils]: 55: Hoare triple {33462#(<= 0 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,976 INFO L280 TraceCheckUtils]: 56: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post8; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,976 INFO L280 TraceCheckUtils]: 57: Hoare triple {33463#(<= 1 main_~j~0)} #t~post9 := ~i~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,977 INFO L280 TraceCheckUtils]: 58: Hoare triple {33463#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,978 INFO L280 TraceCheckUtils]: 59: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~post9; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,978 INFO L280 TraceCheckUtils]: 60: Hoare triple {33463#(<= 1 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,979 INFO L280 TraceCheckUtils]: 61: Hoare triple {33463#(<= 1 main_~j~0)} assume 1 + ~i~0 < ~len~0; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,979 INFO L263 TraceCheckUtils]: 62: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,979 INFO L280 TraceCheckUtils]: 63: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,979 INFO L280 TraceCheckUtils]: 64: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,980 INFO L280 TraceCheckUtils]: 65: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,980 INFO L275 TraceCheckUtils]: 66: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #123#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,981 INFO L263 TraceCheckUtils]: 67: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,981 INFO L280 TraceCheckUtils]: 68: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,981 INFO L280 TraceCheckUtils]: 69: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,981 INFO L280 TraceCheckUtils]: 70: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,982 INFO L275 TraceCheckUtils]: 71: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #125#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,983 INFO L280 TraceCheckUtils]: 72: Hoare triple {33463#(<= 1 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,983 INFO L280 TraceCheckUtils]: 73: Hoare triple {33463#(<= 1 main_~j~0)} assume !(0 != #t~nondet2); {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,984 INFO L280 TraceCheckUtils]: 74: Hoare triple {33463#(<= 1 main_~j~0)} havoc #t~nondet2; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,984 INFO L263 TraceCheckUtils]: 75: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,984 INFO L280 TraceCheckUtils]: 76: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,984 INFO L280 TraceCheckUtils]: 77: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,984 INFO L280 TraceCheckUtils]: 78: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,985 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #127#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,985 INFO L263 TraceCheckUtils]: 80: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,986 INFO L280 TraceCheckUtils]: 81: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,986 INFO L280 TraceCheckUtils]: 82: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,986 INFO L280 TraceCheckUtils]: 83: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,987 INFO L275 TraceCheckUtils]: 84: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #129#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,987 INFO L263 TraceCheckUtils]: 85: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,987 INFO L280 TraceCheckUtils]: 86: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,987 INFO L280 TraceCheckUtils]: 87: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,987 INFO L280 TraceCheckUtils]: 88: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,988 INFO L275 TraceCheckUtils]: 89: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #131#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,988 INFO L263 TraceCheckUtils]: 90: Hoare triple {33463#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,988 INFO L280 TraceCheckUtils]: 91: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,989 INFO L280 TraceCheckUtils]: 92: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,989 INFO L280 TraceCheckUtils]: 93: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,990 INFO L275 TraceCheckUtils]: 94: Hoare quadruple {33433#true} {33463#(<= 1 main_~j~0)} #133#return; {33463#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:16,990 INFO L280 TraceCheckUtils]: 95: Hoare triple {33463#(<= 1 main_~j~0)} #t~post3 := ~j~0; {33488#(<= 1 |main_#t~post3|)} is VALID [2020-07-08 17:39:16,991 INFO L280 TraceCheckUtils]: 96: Hoare triple {33488#(<= 1 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,992 INFO L280 TraceCheckUtils]: 97: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post3; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,992 INFO L280 TraceCheckUtils]: 98: Hoare triple {33489#(<= 2 main_~j~0)} #t~post4 := ~i~0; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,993 INFO L280 TraceCheckUtils]: 99: Hoare triple {33489#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,994 INFO L280 TraceCheckUtils]: 100: Hoare triple {33489#(<= 2 main_~j~0)} havoc #t~post4; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,994 INFO L263 TraceCheckUtils]: 101: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,994 INFO L280 TraceCheckUtils]: 102: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,994 INFO L280 TraceCheckUtils]: 103: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,994 INFO L280 TraceCheckUtils]: 104: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,995 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #135#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,996 INFO L263 TraceCheckUtils]: 106: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,996 INFO L280 TraceCheckUtils]: 107: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,996 INFO L280 TraceCheckUtils]: 108: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,996 INFO L280 TraceCheckUtils]: 109: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,997 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #137#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,997 INFO L263 TraceCheckUtils]: 111: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,997 INFO L280 TraceCheckUtils]: 112: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,998 INFO L280 TraceCheckUtils]: 113: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,998 INFO L280 TraceCheckUtils]: 114: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:16,999 INFO L275 TraceCheckUtils]: 115: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #139#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:16,999 INFO L263 TraceCheckUtils]: 116: Hoare triple {33489#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:16,999 INFO L280 TraceCheckUtils]: 117: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:16,999 INFO L280 TraceCheckUtils]: 118: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:16,999 INFO L280 TraceCheckUtils]: 119: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:17,000 INFO L275 TraceCheckUtils]: 120: Hoare quadruple {33433#true} {33489#(<= 2 main_~j~0)} #141#return; {33489#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:17,001 INFO L280 TraceCheckUtils]: 121: Hoare triple {33489#(<= 2 main_~j~0)} #t~post5 := ~j~0; {33506#(<= 2 |main_#t~post5|)} is VALID [2020-07-08 17:39:17,002 INFO L280 TraceCheckUtils]: 122: Hoare triple {33506#(<= 2 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:17,003 INFO L280 TraceCheckUtils]: 123: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post5; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:17,004 INFO L280 TraceCheckUtils]: 124: Hoare triple {33507#(<= 3 main_~j~0)} #t~post6 := ~i~0; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:17,004 INFO L280 TraceCheckUtils]: 125: Hoare triple {33507#(<= 3 main_~j~0)} ~i~0 := 1 + #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:17,005 INFO L280 TraceCheckUtils]: 126: Hoare triple {33507#(<= 3 main_~j~0)} havoc #t~post6; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:17,005 INFO L263 TraceCheckUtils]: 127: Hoare triple {33507#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:17,005 INFO L280 TraceCheckUtils]: 128: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:17,005 INFO L280 TraceCheckUtils]: 129: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:17,005 INFO L280 TraceCheckUtils]: 130: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:17,006 INFO L275 TraceCheckUtils]: 131: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #143#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:17,007 INFO L263 TraceCheckUtils]: 132: Hoare triple {33507#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:17,007 INFO L280 TraceCheckUtils]: 133: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:17,007 INFO L280 TraceCheckUtils]: 134: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:17,007 INFO L280 TraceCheckUtils]: 135: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:17,008 INFO L275 TraceCheckUtils]: 136: Hoare quadruple {33433#true} {33507#(<= 3 main_~j~0)} #145#return; {33507#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:17,009 INFO L280 TraceCheckUtils]: 137: Hoare triple {33507#(<= 3 main_~j~0)} #t~post7 := ~j~0; {33516#(<= 3 |main_#t~post7|)} is VALID [2020-07-08 17:39:17,009 INFO L280 TraceCheckUtils]: 138: Hoare triple {33516#(<= 3 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:17,010 INFO L280 TraceCheckUtils]: 139: Hoare triple {33517#(<= 4 main_~j~0)} havoc #t~post7; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:17,011 INFO L280 TraceCheckUtils]: 140: Hoare triple {33517#(<= 4 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:17,011 INFO L280 TraceCheckUtils]: 141: Hoare triple {33517#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:17,012 INFO L263 TraceCheckUtils]: 142: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:17,012 INFO L280 TraceCheckUtils]: 143: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:17,012 INFO L280 TraceCheckUtils]: 144: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:17,012 INFO L280 TraceCheckUtils]: 145: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:17,013 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #147#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:17,014 INFO L263 TraceCheckUtils]: 147: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:17,014 INFO L280 TraceCheckUtils]: 148: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:17,014 INFO L280 TraceCheckUtils]: 149: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:17,014 INFO L280 TraceCheckUtils]: 150: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:17,015 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #149#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:17,016 INFO L263 TraceCheckUtils]: 152: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {33433#true} is VALID [2020-07-08 17:39:17,016 INFO L280 TraceCheckUtils]: 153: Hoare triple {33433#true} ~cond := #in~cond; {33433#true} is VALID [2020-07-08 17:39:17,016 INFO L280 TraceCheckUtils]: 154: Hoare triple {33433#true} assume !(0 == ~cond); {33433#true} is VALID [2020-07-08 17:39:17,016 INFO L280 TraceCheckUtils]: 155: Hoare triple {33433#true} assume true; {33433#true} is VALID [2020-07-08 17:39:17,017 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {33433#true} {33517#(<= 4 main_~j~0)} #151#return; {33517#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:17,018 INFO L263 TraceCheckUtils]: 157: Hoare triple {33517#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {33530#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:39:17,019 INFO L280 TraceCheckUtils]: 158: Hoare triple {33530#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {33531#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:39:17,020 INFO L280 TraceCheckUtils]: 159: Hoare triple {33531#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {33434#false} is VALID [2020-07-08 17:39:17,020 INFO L280 TraceCheckUtils]: 160: Hoare triple {33434#false} assume !false; {33434#false} is VALID [2020-07-08 17:39:17,051 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-08 17:39:17,051 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:39:17,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471475615] [2020-07-08 17:39:17,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:39:17,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-08 17:39:17,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507359148] [2020-07-08 17:39:17,052 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 17:39:17,053 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:39:17,053 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-08 17:39:17,191 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:17,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-08 17:39:17,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:39:17,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-08 17:39:17,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-08 17:39:17,193 INFO L87 Difference]: Start difference. First operand 412 states and 539 transitions. Second operand 13 states. [2020-07-08 17:39:21,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:21,024 INFO L93 Difference]: Finished difference Result 505 states and 669 transitions. [2020-07-08 17:39:21,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-08 17:39:21,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 17:39:21,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:39:21,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 17:39:21,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-08 17:39:21,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 17:39:21,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 224 transitions. [2020-07-08 17:39:21,031 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 224 transitions. [2020-07-08 17:39:21,335 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 224 edges. 224 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:21,353 INFO L225 Difference]: With dead ends: 505 [2020-07-08 17:39:21,353 INFO L226 Difference]: Without dead ends: 495 [2020-07-08 17:39:21,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2020-07-08 17:39:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-08 17:39:22,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 459. [2020-07-08 17:39:22,749 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:39:22,749 INFO L82 GeneralOperation]: Start isEquivalent. First operand 495 states. Second operand 459 states. [2020-07-08 17:39:22,749 INFO L74 IsIncluded]: Start isIncluded. First operand 495 states. Second operand 459 states. [2020-07-08 17:39:22,749 INFO L87 Difference]: Start difference. First operand 495 states. Second operand 459 states. [2020-07-08 17:39:22,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:22,769 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-08 17:39:22,770 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-08 17:39:22,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:22,771 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:22,772 INFO L74 IsIncluded]: Start isIncluded. First operand 459 states. Second operand 495 states. [2020-07-08 17:39:22,772 INFO L87 Difference]: Start difference. First operand 459 states. Second operand 495 states. [2020-07-08 17:39:22,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:22,791 INFO L93 Difference]: Finished difference Result 495 states and 651 transitions. [2020-07-08 17:39:22,791 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 651 transitions. [2020-07-08 17:39:22,792 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:22,792 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:22,792 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:39:22,792 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:39:22,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2020-07-08 17:39:22,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 603 transitions. [2020-07-08 17:39:22,807 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 603 transitions. Word has length 161 [2020-07-08 17:39:22,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:39:22,807 INFO L479 AbstractCegarLoop]: Abstraction has 459 states and 603 transitions. [2020-07-08 17:39:22,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-08 17:39:22,807 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 459 states and 603 transitions. [2020-07-08 17:39:24,057 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 603 edges. 603 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:24,058 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 603 transitions. [2020-07-08 17:39:24,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-08 17:39:24,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 17:39:24,060 INFO L422 BasicCegarLoop]: trace histogram [22, 21, 21, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 17:39:24,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-07-08 17:39:24,061 INFO L427 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 17:39:24,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 17:39:24,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1620079197, now seen corresponding path program 2 times [2020-07-08 17:39:24,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 17:39:24,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325965223] [2020-07-08 17:39:24,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 17:39:24,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,272 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,272 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-08 17:39:24,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,276 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,276 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,276 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,277 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,280 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,280 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,280 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,281 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,284 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,284 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,284 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,285 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,288 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,288 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,288 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,289 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,292 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,292 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,292 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,293 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,296 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,296 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,296 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,297 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,300 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,301 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,301 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,302 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,304 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,305 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,305 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,306 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,309 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,309 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,310 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,311 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,314 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,314 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,314 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,315 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,318 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,319 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,319 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,319 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,324 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,324 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,325 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,325 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,328 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,329 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,329 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,330 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,333 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,333 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,333 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,334 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,337 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,337 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,337 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,338 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,341 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,341 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,341 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,342 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,345 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,345 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,346 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,346 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,350 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,350 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,350 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,352 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,355 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,355 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,355 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,356 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,359 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,359 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,360 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,360 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 17:39:24,363 INFO L280 TraceCheckUtils]: 0: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,364 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,364 INFO L280 TraceCheckUtils]: 2: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,365 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,365 INFO L263 TraceCheckUtils]: 0: Hoare triple {36474#true} call ULTIMATE.init(); {36474#true} is VALID [2020-07-08 17:39:24,365 INFO L280 TraceCheckUtils]: 1: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,365 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {36474#true} {36474#true} #119#return; {36474#true} is VALID [2020-07-08 17:39:24,365 INFO L263 TraceCheckUtils]: 3: Hoare triple {36474#true} call #t~ret10 := main(); {36474#true} is VALID [2020-07-08 17:39:24,366 INFO L280 TraceCheckUtils]: 4: Hoare triple {36474#true} havoc ~len~0; {36474#true} is VALID [2020-07-08 17:39:24,366 INFO L280 TraceCheckUtils]: 5: Hoare triple {36474#true} havoc ~i~0; {36474#true} is VALID [2020-07-08 17:39:24,366 INFO L280 TraceCheckUtils]: 6: Hoare triple {36474#true} havoc ~j~0; {36474#true} is VALID [2020-07-08 17:39:24,366 INFO L280 TraceCheckUtils]: 7: Hoare triple {36474#true} havoc ~bufsize~0; {36474#true} is VALID [2020-07-08 17:39:24,366 INFO L280 TraceCheckUtils]: 8: Hoare triple {36474#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {36474#true} is VALID [2020-07-08 17:39:24,367 INFO L280 TraceCheckUtils]: 9: Hoare triple {36474#true} ~bufsize~0 := #t~nondet0; {36474#true} is VALID [2020-07-08 17:39:24,367 INFO L280 TraceCheckUtils]: 10: Hoare triple {36474#true} havoc #t~nondet0; {36474#true} is VALID [2020-07-08 17:39:24,367 INFO L280 TraceCheckUtils]: 11: Hoare triple {36474#true} assume !(~bufsize~0 < 0); {36474#true} is VALID [2020-07-08 17:39:24,367 INFO L280 TraceCheckUtils]: 12: Hoare triple {36474#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647; {36474#true} is VALID [2020-07-08 17:39:24,367 INFO L280 TraceCheckUtils]: 13: Hoare triple {36474#true} ~len~0 := #t~nondet1; {36474#true} is VALID [2020-07-08 17:39:24,368 INFO L280 TraceCheckUtils]: 14: Hoare triple {36474#true} havoc #t~nondet1; {36474#true} is VALID [2020-07-08 17:39:24,368 INFO L280 TraceCheckUtils]: 15: Hoare triple {36474#true} ~limit~0 := ~bufsize~0 - 4; {36474#true} is VALID [2020-07-08 17:39:24,368 INFO L280 TraceCheckUtils]: 16: Hoare triple {36474#true} ~i~0 := 0; {36474#true} is VALID [2020-07-08 17:39:24,368 INFO L280 TraceCheckUtils]: 17: Hoare triple {36474#true} assume !!(~i~0 < ~len~0); {36474#true} is VALID [2020-07-08 17:39:24,369 INFO L280 TraceCheckUtils]: 18: Hoare triple {36474#true} ~j~0 := 0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,369 INFO L280 TraceCheckUtils]: 19: Hoare triple {36478#(<= 0 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,370 INFO L280 TraceCheckUtils]: 20: Hoare triple {36478#(<= 0 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,370 INFO L263 TraceCheckUtils]: 21: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,370 INFO L280 TraceCheckUtils]: 22: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,370 INFO L280 TraceCheckUtils]: 23: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,371 INFO L280 TraceCheckUtils]: 24: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,371 INFO L275 TraceCheckUtils]: 25: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #123#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,371 INFO L263 TraceCheckUtils]: 26: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,372 INFO L280 TraceCheckUtils]: 27: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,372 INFO L280 TraceCheckUtils]: 28: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,372 INFO L280 TraceCheckUtils]: 29: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,373 INFO L275 TraceCheckUtils]: 30: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #125#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,373 INFO L280 TraceCheckUtils]: 31: Hoare triple {36478#(<= 0 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,374 INFO L280 TraceCheckUtils]: 32: Hoare triple {36478#(<= 0 main_~j~0)} assume !(0 != #t~nondet2); {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,374 INFO L280 TraceCheckUtils]: 33: Hoare triple {36478#(<= 0 main_~j~0)} havoc #t~nondet2; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,374 INFO L263 TraceCheckUtils]: 34: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,375 INFO L280 TraceCheckUtils]: 35: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,375 INFO L280 TraceCheckUtils]: 36: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,375 INFO L280 TraceCheckUtils]: 37: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,376 INFO L275 TraceCheckUtils]: 38: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #127#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,376 INFO L263 TraceCheckUtils]: 39: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,376 INFO L280 TraceCheckUtils]: 40: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,376 INFO L280 TraceCheckUtils]: 41: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,376 INFO L280 TraceCheckUtils]: 42: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,377 INFO L275 TraceCheckUtils]: 43: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #129#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,377 INFO L263 TraceCheckUtils]: 44: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,377 INFO L280 TraceCheckUtils]: 45: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,377 INFO L280 TraceCheckUtils]: 46: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,378 INFO L280 TraceCheckUtils]: 47: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,379 INFO L275 TraceCheckUtils]: 48: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #131#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,379 INFO L263 TraceCheckUtils]: 49: Hoare triple {36478#(<= 0 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,379 INFO L280 TraceCheckUtils]: 50: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,379 INFO L280 TraceCheckUtils]: 51: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,379 INFO L280 TraceCheckUtils]: 52: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,380 INFO L275 TraceCheckUtils]: 53: Hoare quadruple {36474#true} {36478#(<= 0 main_~j~0)} #133#return; {36478#(<= 0 main_~j~0)} is VALID [2020-07-08 17:39:24,380 INFO L280 TraceCheckUtils]: 54: Hoare triple {36478#(<= 0 main_~j~0)} #t~post3 := ~j~0; {36503#(<= 0 |main_#t~post3|)} is VALID [2020-07-08 17:39:24,381 INFO L280 TraceCheckUtils]: 55: Hoare triple {36503#(<= 0 |main_#t~post3|)} ~j~0 := 1 + #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,382 INFO L280 TraceCheckUtils]: 56: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post3; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,382 INFO L280 TraceCheckUtils]: 57: Hoare triple {36504#(<= 1 main_~j~0)} #t~post4 := ~i~0; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,383 INFO L280 TraceCheckUtils]: 58: Hoare triple {36504#(<= 1 main_~j~0)} ~i~0 := 1 + #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,383 INFO L280 TraceCheckUtils]: 59: Hoare triple {36504#(<= 1 main_~j~0)} havoc #t~post4; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,383 INFO L263 TraceCheckUtils]: 60: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,384 INFO L280 TraceCheckUtils]: 61: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,384 INFO L280 TraceCheckUtils]: 62: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,384 INFO L280 TraceCheckUtils]: 63: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,386 INFO L275 TraceCheckUtils]: 64: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #135#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,386 INFO L263 TraceCheckUtils]: 65: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,386 INFO L280 TraceCheckUtils]: 66: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,386 INFO L280 TraceCheckUtils]: 67: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,386 INFO L280 TraceCheckUtils]: 68: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,388 INFO L275 TraceCheckUtils]: 69: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #137#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,388 INFO L263 TraceCheckUtils]: 70: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,388 INFO L280 TraceCheckUtils]: 71: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,388 INFO L280 TraceCheckUtils]: 72: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,388 INFO L280 TraceCheckUtils]: 73: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,389 INFO L275 TraceCheckUtils]: 74: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #139#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,389 INFO L263 TraceCheckUtils]: 75: Hoare triple {36504#(<= 1 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,390 INFO L280 TraceCheckUtils]: 76: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,390 INFO L280 TraceCheckUtils]: 77: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,390 INFO L280 TraceCheckUtils]: 78: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,391 INFO L275 TraceCheckUtils]: 79: Hoare quadruple {36474#true} {36504#(<= 1 main_~j~0)} #141#return; {36504#(<= 1 main_~j~0)} is VALID [2020-07-08 17:39:24,392 INFO L280 TraceCheckUtils]: 80: Hoare triple {36504#(<= 1 main_~j~0)} #t~post5 := ~j~0; {36521#(<= 1 |main_#t~post5|)} is VALID [2020-07-08 17:39:24,393 INFO L280 TraceCheckUtils]: 81: Hoare triple {36521#(<= 1 |main_#t~post5|)} ~j~0 := 1 + #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,393 INFO L280 TraceCheckUtils]: 82: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post5; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,394 INFO L280 TraceCheckUtils]: 83: Hoare triple {36522#(<= 2 main_~j~0)} #t~post6 := ~i~0; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,395 INFO L280 TraceCheckUtils]: 84: Hoare triple {36522#(<= 2 main_~j~0)} ~i~0 := 1 + #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,395 INFO L280 TraceCheckUtils]: 85: Hoare triple {36522#(<= 2 main_~j~0)} havoc #t~post6; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,396 INFO L263 TraceCheckUtils]: 86: Hoare triple {36522#(<= 2 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,396 INFO L280 TraceCheckUtils]: 87: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,396 INFO L280 TraceCheckUtils]: 88: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,396 INFO L280 TraceCheckUtils]: 89: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,397 INFO L275 TraceCheckUtils]: 90: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #143#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,397 INFO L263 TraceCheckUtils]: 91: Hoare triple {36522#(<= 2 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,397 INFO L280 TraceCheckUtils]: 92: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,398 INFO L280 TraceCheckUtils]: 93: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,398 INFO L280 TraceCheckUtils]: 94: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,398 INFO L275 TraceCheckUtils]: 95: Hoare quadruple {36474#true} {36522#(<= 2 main_~j~0)} #145#return; {36522#(<= 2 main_~j~0)} is VALID [2020-07-08 17:39:24,399 INFO L280 TraceCheckUtils]: 96: Hoare triple {36522#(<= 2 main_~j~0)} #t~post7 := ~j~0; {36531#(<= 2 |main_#t~post7|)} is VALID [2020-07-08 17:39:24,400 INFO L280 TraceCheckUtils]: 97: Hoare triple {36531#(<= 2 |main_#t~post7|)} ~j~0 := 1 + #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,401 INFO L280 TraceCheckUtils]: 98: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~post7; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,402 INFO L280 TraceCheckUtils]: 99: Hoare triple {36532#(<= 3 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,402 INFO L280 TraceCheckUtils]: 100: Hoare triple {36532#(<= 3 main_~j~0)} assume 1 + ~i~0 < ~len~0; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,403 INFO L263 TraceCheckUtils]: 101: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 1 + ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,403 INFO L280 TraceCheckUtils]: 102: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,403 INFO L280 TraceCheckUtils]: 103: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,403 INFO L280 TraceCheckUtils]: 104: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,404 INFO L275 TraceCheckUtils]: 105: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #123#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,405 INFO L263 TraceCheckUtils]: 106: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,405 INFO L280 TraceCheckUtils]: 107: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,405 INFO L280 TraceCheckUtils]: 108: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,405 INFO L280 TraceCheckUtils]: 109: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,406 INFO L275 TraceCheckUtils]: 110: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #125#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,407 INFO L280 TraceCheckUtils]: 111: Hoare triple {36532#(<= 3 main_~j~0)} assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,407 INFO L280 TraceCheckUtils]: 112: Hoare triple {36532#(<= 3 main_~j~0)} assume 0 != #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,408 INFO L280 TraceCheckUtils]: 113: Hoare triple {36532#(<= 3 main_~j~0)} havoc #t~nondet2; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,408 INFO L263 TraceCheckUtils]: 114: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,409 INFO L280 TraceCheckUtils]: 115: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,409 INFO L280 TraceCheckUtils]: 116: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,409 INFO L280 TraceCheckUtils]: 117: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,410 INFO L275 TraceCheckUtils]: 118: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #147#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,410 INFO L263 TraceCheckUtils]: 119: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,411 INFO L280 TraceCheckUtils]: 120: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,411 INFO L280 TraceCheckUtils]: 121: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,411 INFO L280 TraceCheckUtils]: 122: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,412 INFO L275 TraceCheckUtils]: 123: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #149#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,412 INFO L263 TraceCheckUtils]: 124: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,413 INFO L280 TraceCheckUtils]: 125: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,413 INFO L280 TraceCheckUtils]: 126: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,413 INFO L280 TraceCheckUtils]: 127: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,414 INFO L275 TraceCheckUtils]: 128: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #151#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,414 INFO L263 TraceCheckUtils]: 129: Hoare triple {36532#(<= 3 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,414 INFO L280 TraceCheckUtils]: 130: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,414 INFO L280 TraceCheckUtils]: 131: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,415 INFO L280 TraceCheckUtils]: 132: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,415 INFO L275 TraceCheckUtils]: 133: Hoare quadruple {36474#true} {36532#(<= 3 main_~j~0)} #153#return; {36532#(<= 3 main_~j~0)} is VALID [2020-07-08 17:39:24,417 INFO L280 TraceCheckUtils]: 134: Hoare triple {36532#(<= 3 main_~j~0)} #t~post8 := ~j~0; {36557#(<= 3 |main_#t~post8|)} is VALID [2020-07-08 17:39:24,418 INFO L280 TraceCheckUtils]: 135: Hoare triple {36557#(<= 3 |main_#t~post8|)} ~j~0 := 1 + #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,418 INFO L280 TraceCheckUtils]: 136: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post8; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,419 INFO L280 TraceCheckUtils]: 137: Hoare triple {36558#(<= 4 main_~j~0)} #t~post9 := ~i~0; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,420 INFO L280 TraceCheckUtils]: 138: Hoare triple {36558#(<= 4 main_~j~0)} ~i~0 := 1 + #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,421 INFO L280 TraceCheckUtils]: 139: Hoare triple {36558#(<= 4 main_~j~0)} havoc #t~post9; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,421 INFO L280 TraceCheckUtils]: 140: Hoare triple {36558#(<= 4 main_~j~0)} assume !!(~i~0 < ~len~0 && ~j~0 < ~limit~0); {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,422 INFO L280 TraceCheckUtils]: 141: Hoare triple {36558#(<= 4 main_~j~0)} assume !(1 + ~i~0 < ~len~0); {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,422 INFO L263 TraceCheckUtils]: 142: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~i~0 < ~len~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,422 INFO L280 TraceCheckUtils]: 143: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,423 INFO L280 TraceCheckUtils]: 144: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,423 INFO L280 TraceCheckUtils]: 145: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,424 INFO L275 TraceCheckUtils]: 146: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #147#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,424 INFO L263 TraceCheckUtils]: 147: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~i~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,424 INFO L280 TraceCheckUtils]: 148: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,424 INFO L280 TraceCheckUtils]: 149: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,424 INFO L280 TraceCheckUtils]: 150: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,425 INFO L275 TraceCheckUtils]: 151: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #149#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,426 INFO L263 TraceCheckUtils]: 152: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if ~j~0 < ~bufsize~0 then 1 else 0)); {36474#true} is VALID [2020-07-08 17:39:24,426 INFO L280 TraceCheckUtils]: 153: Hoare triple {36474#true} ~cond := #in~cond; {36474#true} is VALID [2020-07-08 17:39:24,426 INFO L280 TraceCheckUtils]: 154: Hoare triple {36474#true} assume !(0 == ~cond); {36474#true} is VALID [2020-07-08 17:39:24,426 INFO L280 TraceCheckUtils]: 155: Hoare triple {36474#true} assume true; {36474#true} is VALID [2020-07-08 17:39:24,427 INFO L275 TraceCheckUtils]: 156: Hoare quadruple {36474#true} {36558#(<= 4 main_~j~0)} #151#return; {36558#(<= 4 main_~j~0)} is VALID [2020-07-08 17:39:24,429 INFO L263 TraceCheckUtils]: 157: Hoare triple {36558#(<= 4 main_~j~0)} call __VERIFIER_assert((if 0 <= ~j~0 then 1 else 0)); {36571#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-08 17:39:24,429 INFO L280 TraceCheckUtils]: 158: Hoare triple {36571#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {36572#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-08 17:39:24,430 INFO L280 TraceCheckUtils]: 159: Hoare triple {36572#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {36475#false} is VALID [2020-07-08 17:39:24,430 INFO L280 TraceCheckUtils]: 160: Hoare triple {36475#false} assume !false; {36475#false} is VALID [2020-07-08 17:39:24,455 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-08 17:39:24,455 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-08 17:39:24,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325965223] [2020-07-08 17:39:24,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 17:39:24,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-07-08 17:39:24,457 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470930404] [2020-07-08 17:39:24,459 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 17:39:24,459 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 17:39:24,459 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 13 states. [2020-07-08 17:39:24,603 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 101 edges. 101 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:24,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-08 17:39:24,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 17:39:24,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-08 17:39:24,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-08 17:39:24,604 INFO L87 Difference]: Start difference. First operand 459 states and 603 transitions. Second operand 13 states. [2020-07-08 17:39:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:28,311 INFO L93 Difference]: Finished difference Result 499 states and 659 transitions. [2020-07-08 17:39:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-08 17:39:28,312 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 161 [2020-07-08 17:39:28,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 17:39:28,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 17:39:28,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-08 17:39:28,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-08 17:39:28,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 221 transitions. [2020-07-08 17:39:28,319 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 20 states and 221 transitions. [2020-07-08 17:39:28,631 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 221 edges. 221 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:28,632 INFO L225 Difference]: With dead ends: 499 [2020-07-08 17:39:28,632 INFO L226 Difference]: Without dead ends: 0 [2020-07-08 17:39:28,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2020-07-08 17:39:28,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-08 17:39:28,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-08 17:39:28,635 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 17:39:28,635 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-08 17:39:28,635 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 17:39:28,635 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 17:39:28,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:28,635 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 17:39:28,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 17:39:28,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:28,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:28,636 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-08 17:39:28,636 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-08 17:39:28,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 17:39:28,636 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-08 17:39:28,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 17:39:28,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:28,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 17:39:28,636 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 17:39:28,637 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 17:39:28,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-08 17:39:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-08 17:39:28,637 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 161 [2020-07-08 17:39:28,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 17:39:28,637 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-08 17:39:28,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-08 17:39:28,637 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-08 17:39:28,637 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 17:39:28,637 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-08 17:39:28,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 17:39:28,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-08 17:39:28,639 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-08 17:39:29,445 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 41 [2020-07-08 17:39:30,920 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 23 [2020-07-08 17:39:31,312 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 25 [2020-07-08 17:39:31,854 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 22 [2020-07-08 17:39:31,984 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 22 [2020-07-08 17:39:32,402 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 23 [2020-07-08 17:39:32,821 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 22 [2020-07-08 17:39:33,293 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 16 [2020-07-08 17:39:33,950 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 23 [2020-07-08 17:39:34,575 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 11 [2020-07-08 17:39:34,808 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 16 [2020-07-08 17:39:35,141 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 23 [2020-07-08 17:39:35,654 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 26 [2020-07-08 17:39:36,099 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 18 [2020-07-08 17:39:36,106 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-08 17:39:36,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-08 17:39:36,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-08 17:39:36,107 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-08 17:39:36,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-08 17:39:36,107 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-08 17:39:36,107 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-08 17:39:36,108 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-08 17:39:36,108 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-08 17:39:36,108 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-08 17:39:36,108 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-08 17:39:36,108 INFO L264 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,108 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,108 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 56) the Hoare annotation is: true [2020-07-08 17:39:36,109 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (<= (+ main_~limit~0 4) main_~bufsize~0) [2020-07-08 17:39:36,109 INFO L264 CegarLoopResult]: At program point L23-3(lines 23 54) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0) (and .cse0 (<= main_~len~0 main_~i~0)))) [2020-07-08 17:39:36,109 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-08 17:39:36,109 INFO L271 CegarLoopResult]: At program point L23-4(lines 23 54) the Hoare annotation is: true [2020-07-08 17:39:36,109 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-07-08 17:39:36,109 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-07-08 17:39:36,109 INFO L264 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (< main_~i~0 main_~len~0)) (.cse3 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0 .cse1 .cse2 .cse3) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1 .cse3 .cse2))) [2020-07-08 17:39:36,109 INFO L264 CegarLoopResult]: At program point L40(line 40) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,110 INFO L264 CegarLoopResult]: At program point L40-1(line 40) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 |main_#t~post6|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,110 INFO L264 CegarLoopResult]: At program point L40-2(line 40) the Hoare annotation is: (and (<= 2 main_~i~0) (<= 1 |main_#t~post6|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 17:39:36,110 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,110 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,110 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,110 INFO L264 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,111 INFO L264 CegarLoopResult]: At program point L28-3(line 28) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,111 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< main_~i~0 main_~len~0)) [2020-07-08 17:39:36,111 INFO L264 CegarLoopResult]: At program point L24-3(lines 24 53) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0 (<= 0 main_~j~0)) (and .cse0 (<= main_~len~0 main_~i~0)))) [2020-07-08 17:39:36,111 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-08 17:39:36,111 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-07-08 17:39:36,111 INFO L264 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 1)) (.cse1 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= main_~len~0 .cse0) .cse1 (< main_~i~0 main_~len~0) .cse2) (and (<= 0 main_~i~0) (< .cse0 main_~len~0) .cse1 .cse2 (<= 0 main_~j~0)))) [2020-07-08 17:39:36,112 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-08 17:39:36,112 INFO L264 CegarLoopResult]: At program point L45(lines 25 52) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,112 INFO L264 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (and (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 17:39:36,112 INFO L264 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 17:39:36,112 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,113 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (and (<= 0 main_~i~0) (<= 0 |main_#t~post3|) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= (+ |main_#t~post3| 5) main_~bufsize~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,113 INFO L264 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (and (<= 0 main_~i~0) (<= 1 main_~j~0) (<= 0 |main_#t~post3|) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= (+ |main_#t~post3| 5) main_~bufsize~0)) [2020-07-08 17:39:36,113 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,113 INFO L264 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,113 INFO L264 CegarLoopResult]: At program point L25(lines 25 52) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,113 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-07-08 17:39:36,114 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-07-08 17:39:36,114 INFO L271 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: true [2020-07-08 17:39:36,114 INFO L264 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (+ main_~i~0 1)) (.cse1 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= 0 main_~i~0) (<= 0 |main_#t~post8|) (< .cse0 main_~len~0) .cse1 .cse2 (<= 0 main_~j~0)) (and (<= main_~len~0 .cse0) .cse1 (< main_~i~0 main_~len~0) .cse2))) [2020-07-08 17:39:36,114 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-08 17:39:36,114 INFO L264 CegarLoopResult]: At program point L50-1(line 50) the Hoare annotation is: (let ((.cse1 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse0 (+ main_~i~0 1))) (or (and (<= main_~len~0 .cse0) .cse1 (< main_~i~0 main_~len~0)) (and (<= 0 main_~i~0) (<= 0 |main_#t~post8|) (<= 1 main_~j~0) .cse1 (< .cse0 main_~len~0)))) [2020-07-08 17:39:36,114 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 0 main_~j~0) (< main_~i~0 main_~len~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,114 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 56) the Hoare annotation is: true [2020-07-08 17:39:36,115 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 17:39:36,115 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,115 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (and (<= 0 main_~i~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0)) [2020-07-08 17:39:36,115 INFO L264 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ |main_#t~post4| 2) main_~len~0) (<= 0 |main_#t~post4|) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0)) [2020-07-08 17:39:36,115 INFO L264 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= (+ |main_#t~post4| 2) main_~len~0) (<= 0 |main_#t~post4|) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,116 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,116 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 56) the Hoare annotation is: true [2020-07-08 17:39:36,116 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,116 INFO L264 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (< (+ main_~i~0 1) main_~len~0) (<= 0 main_~j~0) (<= (+ main_~j~0 5) main_~bufsize~0)) [2020-07-08 17:39:36,116 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-08 17:39:36,116 INFO L264 CegarLoopResult]: At program point L51(line 51) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (< main_~i~0 main_~len~0))) (or (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1) (and (<= 0 main_~i~0) (<= 1 main_~j~0) .cse0 .cse1))) [2020-07-08 17:39:36,116 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-08 17:39:36,117 INFO L264 CegarLoopResult]: At program point L51-1(line 51) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 1)) (.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 0 main_~i~0) (<= 1 main_~j~0) (<= 0 |main_#t~post9|) .cse0 (< .cse1 main_~len~0)) (and (<= main_~len~0 .cse1) .cse0 (<= main_~len~0 (+ |main_#t~post9| 1)) (< main_~i~0 main_~len~0)))) [2020-07-08 17:39:36,117 INFO L264 CegarLoopResult]: At program point L51-2(line 51) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0))) (or (and (<= 1 main_~j~0) (<= 0 |main_#t~post9|) .cse0 (<= 1 main_~i~0)) (and .cse0 (<= main_~len~0 (+ |main_#t~post9| 1)) (<= main_~len~0 main_~i~0)))) [2020-07-08 17:39:36,117 INFO L264 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 (<= (+ main_~limit~0 4) main_~bufsize~0)) (.cse1 (< main_~i~0 main_~len~0)) (.cse3 (<= 0 main_~j~0)) (.cse2 (<= (+ main_~j~0 5) main_~bufsize~0))) (or (and (<= 0 main_~i~0) .cse0 .cse1 .cse2 .cse3) (and (<= main_~len~0 (+ main_~i~0 1)) .cse0 .cse1 .cse3 .cse2))) [2020-07-08 17:39:36,117 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (and (<= 2 |main_#t~post7|) (<= 2 main_~i~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0)) [2020-07-08 17:39:36,117 INFO L264 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (and (<= 2 |main_#t~post7|) (<= 2 main_~i~0) (<= 3 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0)) [2020-07-08 17:39:36,117 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 |main_#t~post5|) (<= 1 main_~j~0) (<= (+ |main_#t~post5| 4) main_~bufsize~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,117 INFO L264 CegarLoopResult]: At program point L39-1(line 39) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 |main_#t~post5|) (<= (+ |main_#t~post5| 4) main_~bufsize~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= 2 main_~j~0) (<= (+ main_~j~0 3) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,118 INFO L264 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,118 INFO L264 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (and (<= (+ main_~i~0 1) main_~len~0) (<= 1 main_~j~0) (<= (+ main_~limit~0 4) main_~bufsize~0) (<= (+ main_~j~0 4) main_~bufsize~0) (<= 1 main_~i~0)) [2020-07-08 17:39:36,118 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-08 17:39:36,118 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 17:39:36,118 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 17:39:36,118 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 17:39:36,118 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-08 17:39:36,119 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-08 17:39:36,124 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-08 17:39:36,125 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-08 17:39:36,125 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-08 17:39:36,126 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-08 17:39:36,126 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-08 17:39:36,180 INFO L163 areAnnotationChecker]: CFG has 96 edges. 96 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-08 17:39:36,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 05:39:36 BoogieIcfgContainer [2020-07-08 17:39:36,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 17:39:36,211 INFO L168 Benchmark]: Toolchain (without parser) took 89821.04 ms. Allocated memory was 145.2 MB in the beginning and 625.0 MB in the end (delta: 479.7 MB). Free memory was 104.0 MB in the beginning and 156.6 MB in the end (delta: -52.6 MB). Peak memory consumption was 427.1 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:36,212 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-08 17:39:36,213 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.14 ms. Allocated memory is still 145.2 MB. Free memory was 103.8 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. [2020-07-08 17:39:36,213 INFO L168 Benchmark]: Boogie Preprocessor took 123.42 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 180.1 MB in the end (delta: -87.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:36,214 INFO L168 Benchmark]: RCFGBuilder took 597.20 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 146.5 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:36,214 INFO L168 Benchmark]: TraceAbstraction took 88773.67 ms. Allocated memory was 201.3 MB in the beginning and 625.0 MB in the end (delta: 423.6 MB). Free memory was 146.5 MB in the beginning and 156.6 MB in the end (delta: -10.1 MB). Peak memory consumption was 413.5 MB. Max. memory is 7.1 GB. [2020-07-08 17:39:36,219 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 145.2 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 320.14 ms. Allocated memory is still 145.2 MB. Free memory was 103.8 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 123.42 ms. Allocated memory was 145.2 MB in the beginning and 201.3 MB in the end (delta: 56.1 MB). Free memory was 93.0 MB in the beginning and 180.1 MB in the end (delta: -87.1 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 597.20 ms. Allocated memory is still 201.3 MB. Free memory was 180.1 MB in the beginning and 146.5 MB in the end (delta: 33.7 MB). Peak memory consumption was 33.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 88773.67 ms. Allocated memory was 201.3 MB in the beginning and 625.0 MB in the end (delta: 423.6 MB). Free memory was 146.5 MB in the beginning and 156.6 MB in the end (delta: -10.1 MB). Peak memory consumption was 413.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (((0 <= i && limit + 4 <= bufsize) && 0 <= j) && i < len) && j + 5 <= bufsize - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (0 <= i && limit + 4 <= bufsize) || (limit + 4 <= bufsize && len <= i) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((0 <= i && limit + 4 <= bufsize) && 0 <= j) || (limit + 4 <= bufsize && len <= i) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 81.1s, OverallIterations: 23, TraceHistogramMax: 22, AutomataDifference: 45.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2525 SDtfs, 801 SDslu, 12588 SDs, 0 SdLazy, 3823 SolverSat, 428 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 811 GetRequests, 554 SyntacticMatches, 1 SemanticMatches, 256 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=572occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 14.1s AutomataMinimizationTime, 23 MinimizatonAttempts, 542 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 74 LocationsWithAnnotation, 1484 PreInvPairs, 2305 NumberOfFragments, 1186 HoareAnnotationTreeSize, 1484 FomulaSimplifications, 3717248 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 74 FomulaSimplificationsInter, 276705 FormulaSimplificationTreeSizeReductionInter, 4.5s 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...